| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| ; Canonicalize vector ge/le comparisons with constants to gt/lt. |
| |
| ; Normal types are ConstantDataVectors. Test the constant values adjacent to the |
| ; min/max values that we're not allowed to transform. |
| |
| define <2 x i1> @sge(<2 x i8> %x) { |
| ; CHECK-LABEL: @sge( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <2 x i8> %x, <i8 -128, i8 126> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sge <2 x i8> %x, <i8 -127, i8 -129> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @uge(<2 x i8> %x) { |
| ; CHECK-LABEL: @uge( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <2 x i8> %x, <i8 -2, i8 0> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp uge <2 x i8> %x, <i8 -1, i8 1> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @sle(<2 x i8> %x) { |
| ; CHECK-LABEL: @sle( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i8> %x, <i8 127, i8 -127> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sle <2 x i8> %x, <i8 126, i8 128> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @ule(<2 x i8> %x) { |
| ; CHECK-LABEL: @ule( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult <2 x i8> %x, <i8 -1, i8 1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp ule <2 x i8> %x, <i8 254, i8 0> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @ult_min_signed_value(<2 x i8> %x) { |
| ; CHECK-LABEL: @ult_min_signed_value( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <2 x i8> %x, <i8 -1, i8 -1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp ult <2 x i8> %x, <i8 128, i8 128> |
| ret <2 x i1> %cmp |
| } |
| |
| ; Zeros are special: they're ConstantAggregateZero. |
| |
| define <2 x i1> @sge_zero(<2 x i8> %x) { |
| ; CHECK-LABEL: @sge_zero( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <2 x i8> %x, <i8 -1, i8 -1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sge <2 x i8> %x, <i8 0, i8 0> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @uge_zero(<2 x i8> %x) { |
| ; CHECK-LABEL: @uge_zero( |
| ; CHECK-NEXT: ret <2 x i1> <i1 true, i1 true> |
| ; |
| %cmp = icmp uge <2 x i8> %x, <i8 0, i8 0> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @sle_zero(<2 x i8> %x) { |
| ; CHECK-LABEL: @sle_zero( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i8> %x, <i8 1, i8 1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sle <2 x i8> %x, <i8 0, i8 0> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @ule_zero(<2 x i8> %x) { |
| ; CHECK-LABEL: @ule_zero( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i8> %x, zeroinitializer |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp ule <2 x i8> %x, <i8 0, i8 0> |
| ret <2 x i1> %cmp |
| } |
| |
| ; Weird types are ConstantVectors, not ConstantDataVectors. For an i3 type: |
| ; Signed min = -4 |
| ; Unsigned min = 0 |
| ; Signed max = 3 |
| ; Unsigned max = 7 |
| |
| define <3 x i1> @sge_weird(<3 x i3> %x) { |
| ; CHECK-LABEL: @sge_weird( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <3 x i3> %x, <i3 -4, i3 2, i3 -1> |
| ; CHECK-NEXT: ret <3 x i1> [[CMP]] |
| ; |
| %cmp = icmp sge <3 x i3> %x, <i3 -3, i3 -5, i3 0> |
| ret <3 x i1> %cmp |
| } |
| |
| define <3 x i1> @uge_weird(<3 x i3> %x) { |
| ; CHECK-LABEL: @uge_weird( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt <3 x i3> %x, <i3 -2, i3 0, i3 1> |
| ; CHECK-NEXT: ret <3 x i1> [[CMP]] |
| ; |
| %cmp = icmp uge <3 x i3> %x, <i3 -1, i3 1, i3 2> |
| ret <3 x i1> %cmp |
| } |
| |
| define <3 x i1> @sle_weird(<3 x i3> %x) { |
| ; CHECK-LABEL: @sle_weird( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <3 x i3> %x, <i3 3, i3 -3, i3 1> |
| ; CHECK-NEXT: ret <3 x i1> [[CMP]] |
| ; |
| %cmp = icmp sle <3 x i3> %x, <i3 2, i3 4, i3 0> |
| ret <3 x i1> %cmp |
| } |
| |
| define <3 x i1> @ule_weird(<3 x i3> %x) { |
| ; CHECK-LABEL: @ule_weird( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult <3 x i3> %x, <i3 -1, i3 1, i3 2> |
| ; CHECK-NEXT: ret <3 x i1> [[CMP]] |
| ; |
| %cmp = icmp ule <3 x i3> %x, <i3 6, i3 0, i3 1> |
| ret <3 x i1> %cmp |
| } |
| |
| ; We can't do the transform if any constants are already at the limits. |
| |
| define <2 x i1> @sge_min(<2 x i3> %x) { |
| ; CHECK-LABEL: @sge_min( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sge <2 x i3> %x, <i3 -4, i3 1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sge <2 x i3> %x, <i3 -4, i3 1> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @uge_min(<2 x i3> %x) { |
| ; CHECK-LABEL: @uge_min( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp uge <2 x i3> %x, <i3 1, i3 0> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp uge <2 x i3> %x, <i3 1, i3 0> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @sle_max(<2 x i3> %x) { |
| ; CHECK-LABEL: @sle_max( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sle <2 x i3> %x, <i3 1, i3 3> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sle <2 x i3> %x, <i3 1, i3 3> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @ule_max(<2 x i3> %x) { |
| ; CHECK-LABEL: @ule_max( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ule <2 x i3> %x, <i3 -1, i3 1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp ule <2 x i3> %x, <i3 7, i3 1> |
| ret <2 x i1> %cmp |
| } |
| |
| define <2 x i1> @PR27756_1(<2 x i8> %a) { |
| ; CHECK-LABEL: @PR27756_1( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i8> %a, <i8 34, i8 1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sle <2 x i8> %a, <i8 bitcast (<2 x i4> <i4 1, i4 2> to i8), i8 0> |
| ret <2 x i1> %cmp |
| } |
| |
| ; Undef elements don't prevent the transform of the comparison. |
| |
| define <2 x i1> @PR27756_2(<2 x i8> %a) { |
| ; CHECK-LABEL: @PR27756_2( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i8> %a, <i8 undef, i8 1> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sle <2 x i8> %a, <i8 undef, i8 0> |
| ret <2 x i1> %cmp |
| } |
| |
| @someglobal = global i32 0 |
| |
| define <2 x i1> @PR27786(<2 x i8> %a) { |
| ; CHECK-LABEL: @PR27786( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sle <2 x i8> %a, bitcast (i16 ptrtoint (i32* @someglobal to i16) to <2 x i8>) |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %cmp = icmp sle <2 x i8> %a, bitcast (i16 ptrtoint (i32* @someglobal to i16) to <2 x i8>) |
| ret <2 x i1> %cmp |
| } |