| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | 
 | ; RUN: opt < %s -passes=instsimplify -S | FileCheck %s | 
 |  | 
 | ; There are 12 basic patterns (or 6 with DeMorganized equivalent) with | 
 | ;    2 (commute logic op) * | 
 | ;    2 (swap compare operands) * | 
 | ;    2 (signed/unsigned) * | 
 | ;    2 (not of input operand) | 
 | ; variations for a total of 192 tests. | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MAX) && (X < Y) --> false | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @slt_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp slt i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define <2 x i1> @slt_and_max_commute(<2 x i8> %x, <2 x i8> %y)  { | 
 | ; CHECK-LABEL: @slt_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i8> [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq <2 x i8> [[X]], <i8 127, i8 127> | 
 | ; CHECK-NEXT:    [[R:%.*]] = and <2 x i1> [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret <2 x i1> [[R]] | 
 | ; | 
 |   %cmp = icmp slt <2 x i8> %x, %y | 
 |   %cmpeq = icmp eq <2 x i8> %x, <i8 127, i8 127> | 
 |   %r = and <2 x i1> %cmpeq, %cmp | 
 |   ret <2 x i1> %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ult i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ult i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MIN) && (X > Y) --> false | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sgt_and_min(i9 %x, i9 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i9 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i9 [[X]], -256 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i9 %x, %y | 
 |   %cmpeq = icmp eq i9 %x, 256 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp slt i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp slt i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_min( | 
 | ; CHECK-NEXT:    ret i1 false | 
 | ; | 
 |   %cmp = icmp ugt i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_min_commute( | 
 | ; CHECK-NEXT:    ret i1 false | 
 | ; | 
 |   %cmp = icmp ugt i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_min( | 
 | ; CHECK-NEXT:    ret i1 false | 
 | ; | 
 |   %cmp = icmp ult i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_min_commute( | 
 | ; CHECK-NEXT:    ret i1 false | 
 | ; | 
 |   %cmp = icmp ult i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MAX) || (X >= Y) --> true | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sge_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp uge i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp uge i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ule i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ule i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MIN) || (X <= Y) --> true | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sle_or_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_or_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_not_min(i427 %x, i427 %y)  { | 
 | ; CHECK-LABEL: @ule_or_not_min( | 
 | ; CHECK-NEXT:    ret i1 true | 
 | ; | 
 |   %cmp = icmp ule i427 %x, %y | 
 |   %cmpeq = icmp ne i427 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_or_not_min_commute( | 
 | ; CHECK-NEXT:    ret i1 true | 
 | ; | 
 |   %cmp = icmp ule i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_not_min( | 
 | ; CHECK-NEXT:    ret i1 true | 
 | ; | 
 |   %cmp = icmp uge i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_not_min_commute( | 
 | ; CHECK-NEXT:    ret i1 true | 
 | ; | 
 |   %cmp = icmp uge i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MAX) && (X >= Y) --> X == MAX | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sge_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_and_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_and_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp uge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_and_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp uge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_and_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_and_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ule i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_and_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_and_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ule i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MIN) && (X <= Y) --> X == MIN | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sle_and_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_and_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_and_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sle i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_and_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_and_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_and_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_and_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_and_min( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp ule i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_and_min_commute( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp ule i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_and_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_and_min( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp uge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_and_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_and_min_commute( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp uge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MAX) || (X >= Y) --> X >= Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sge_or_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_or_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sle i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sle i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp uge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp uge i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ule i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ule i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MIN) || (X <= Y) --> X <= Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sle_or_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sle i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_or_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sle i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_or_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ule i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_or_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ule i8 %x, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp uge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp uge i8 %y, %x | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MAX) && (X < Y) --> X < Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @slt_and_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_and_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp slt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_and_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_and_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp slt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ult i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ult i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MIN) && (X > Y) --> X > Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sgt_and_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_and_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp slt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp slt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ult i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %cmp = icmp ult i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MAX) || (X < Y) --> X != MAX | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @slt_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp slt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp slt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ult i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ult i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_or_not_max(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_or_not_max( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_or_not_max_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_or_not_max_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MIN) || (X > Y) --> X != MIN | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sgt_or_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_or_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_or_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_or_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp sgt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_or_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_or_not_min( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp slt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_or_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_or_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[X:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %cmp = icmp slt i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_or_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_or_not_min( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_or_not_min_commute(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_or_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp ugt i8 %x, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_or_not_min(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_or_not_min( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp ult i8 %y, %x | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_or_not_min_commute(i823 %x, i823 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_or_not_min_commute( | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i823 [[X:%.*]], 0 | 
 | ; CHECK-NEXT:    ret i1 [[CMPEQ]] | 
 | ; | 
 |   %cmp = icmp ult i823 %y, %x | 
 |   %cmpeq = icmp ne i823 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MIN) && (!X < Y) --> false | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @slt_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define <2 x i1> @slt_and_max_commute_not_op(<2 x i8> %x, <2 x i8> %y)  { | 
 | ; CHECK-LABEL: @slt_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor <2 x i8> [[X:%.*]], <i8 -1, i8 -1> | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt <2 x i8> [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq <2 x i8> [[X]], <i8 -128, i8 -128> | 
 | ; CHECK-NEXT:    [[R:%.*]] = and <2 x i1> [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret <2 x i1> [[R]] | 
 | ; | 
 |   %notx = xor <2 x i8> %x, <i8 -1, i8 -1> | 
 |   %cmp = icmp slt <2 x i8> %notx, %y | 
 |   %cmpeq = icmp eq <2 x i8> %x, <i8 128, i8 128> | 
 |   %r = and <2 x i1> %cmpeq, %cmp | 
 |   ret <2 x i1> %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MAX) && (!X > Y) --> false | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sgt_and_min_not_op(i9 %x, i9 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i9 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i9 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i9 [[X]], 255 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i9 %x, -1 | 
 |   %cmp = icmp sgt i9 %notx, %y | 
 |   %cmpeq = icmp eq i9 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MIN) || (!X >= Y) --> true | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sge_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MAX) || (!X <= Y) --> true | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sle_or_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_or_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_not_min_not_op(i427 %x, i427 %y)  { | 
 | ; CHECK-LABEL: @ule_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i427 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i427 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i427 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i427 %x, -1 | 
 |   %cmp = icmp ule i427 %notx, %y | 
 |   %cmpeq = icmp ne i427 %x, -1 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MIN) && (!X >= Y) --> X == MIN | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sge_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_and_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_and_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_and_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_and_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_and_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_and_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_and_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MIN) && (!X <= Y) --> X == MIN | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sle_and_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_and_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_and_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_and_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_and_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_and_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_and_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp eq i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = and i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MIN) || (!X >= Y) --> !X >= Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sge_or_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_or_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_or_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sge_swap_or_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sge_swap_or_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_or_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_or_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @uge_swap_or_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @uge_swap_or_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X == MAX) || (!X <= Y) --> !X <= Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sle_or_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_or_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_or_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sle i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sle i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sle_swap_or_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sle_swap_or_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_or_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_or_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_or_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ule i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ule i8 %notx, %y | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ule_swap_or_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ule_swap_or_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp uge i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp uge i8 %y, %notx | 
 |   %cmpeq = icmp eq i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MIN) && (!X < Y) --> !X < Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @slt_and_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_and_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_and_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_and_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_and_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_and_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_and_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_and_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_and_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_and_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MAX) && (!X > Y) --> !X > Y | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sgt_and_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_and_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_and_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_and_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_and_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_and_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_and_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_and_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_and_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    ret i1 [[CMP]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = and i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MIN) || (!X < Y) --> X != MIN | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @slt_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @slt_swap_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @slt_swap_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -128 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 128 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_or_not_max_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_or_not_max_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ult_swap_or_not_max_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ult_swap_or_not_max_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 0 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 0 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 | ; | 
 | ; (X != MAX) || (!X > Y) --> X != MAX | 
 | ; | 
 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | 
 |  | 
 | define i1 @sgt_or_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_or_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp sgt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp sgt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_or_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @sgt_swap_or_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @sgt_swap_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], 127 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp slt i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 127 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_or_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_or_not_min_commute_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ugt i8 [[NOTX]], [[Y:%.*]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ugt i8 %notx, %y | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_or_not_min_not_op(i8 %x, i8 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_or_not_min_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i8 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i8 [[X]], -1 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMP]], [[CMPEQ]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i8 %x, -1 | 
 |   %cmp = icmp ult i8 %y, %notx | 
 |   %cmpeq = icmp ne i8 %x, 255 | 
 |   %r = or i1 %cmp, %cmpeq | 
 |   ret i1 %r | 
 | } | 
 |  | 
 | define i1 @ugt_swap_or_not_min_commute_not_op(i823 %x, i823 %y)  { | 
 | ; CHECK-LABEL: @ugt_swap_or_not_min_commute_not_op( | 
 | ; CHECK-NEXT:    [[NOTX:%.*]] = xor i823 [[X:%.*]], -1 | 
 | ; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i823 [[Y:%.*]], [[NOTX]] | 
 | ; CHECK-NEXT:    [[CMPEQ:%.*]] = icmp ne i823 [[X]], 255 | 
 | ; CHECK-NEXT:    [[R:%.*]] = or i1 [[CMPEQ]], [[CMP]] | 
 | ; CHECK-NEXT:    ret i1 [[R]] | 
 | ; | 
 |   %notx = xor i823 %x, -1 | 
 |   %cmp = icmp ult i823 %y, %notx | 
 |   %cmpeq = icmp ne i823 %x, 255 | 
 |   %r = or i1 %cmpeq, %cmp | 
 |   ret i1 %r | 
 | } |