| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| define i1 @set_low_bit_mask_eq(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_eq( |
| ; CHECK-NEXT: [[TMP1:%.*]] = and i8 [[X:%.*]], -2 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[TMP1]], 18 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 1 |
| %cmp = icmp eq i8 %sub, 19 |
| ret i1 %cmp |
| } |
| |
| define <2 x i1> @set_low_bit_mask_ne(<2 x i8> %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_ne( |
| ; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i8> [[X:%.*]], <i8 -4, i8 -4> |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i8> [[TMP1]], <i8 16, i8 16> |
| ; CHECK-NEXT: ret <2 x i1> [[CMP]] |
| ; |
| %sub = or <2 x i8> %x, <i8 3, i8 3> |
| %cmp = icmp ne <2 x i8> %sub, <i8 19, i8 19> |
| ret <2 x i1> %cmp |
| } |
| |
| define i1 @set_low_bit_mask_ugt(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_ugt( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], 19 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 3 |
| %cmp = icmp ugt i8 %sub, 19 |
| ret i1 %cmp |
| } |
| |
| define i1 @set_low_bit_mask_ult(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_ult( |
| ; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 3 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[SUB]], 19 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 3 |
| %cmp = icmp ult i8 %sub, 19 |
| ret i1 %cmp |
| } |
| |
| define i1 @set_low_bit_mask_uge(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_uge( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[X:%.*]], 19 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 3 |
| %cmp = icmp uge i8 %sub, 20 |
| ret i1 %cmp |
| } |
| |
| define i1 @set_low_bit_mask_ule(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_ule( |
| ; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 3 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[SUB]], 19 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 3 |
| %cmp = icmp ule i8 %sub, 18 |
| ret i1 %cmp |
| } |
| |
| define i1 @set_low_bit_mask_sgt(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_sgt( |
| ; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 3 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[SUB]], 20 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 3 |
| %cmp = icmp sgt i8 %sub, 20 |
| ret i1 %cmp |
| } |
| |
| define i1 @set_low_bit_mask_slt(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_slt( |
| ; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 15 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[SUB]], 19 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 15 |
| %cmp = icmp slt i8 %sub, 19 |
| ret i1 %cmp |
| } |
| |
| define i1 @set_low_bit_mask_sge(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_sge( |
| ; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 31 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[SUB]], 50 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 31 |
| %cmp = icmp sge i8 %sub, 51 |
| ret i1 %cmp |
| } |
| |
| define i1 @set_low_bit_mask_sle(i8 %x) { |
| ; CHECK-LABEL: @set_low_bit_mask_sle( |
| ; CHECK-NEXT: [[SUB:%.*]] = or i8 [[X:%.*]], 63 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i8 [[SUB]], 69 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %sub = or i8 %x, 63 |
| %cmp = icmp sle i8 %sub, 68 |
| ret i1 %cmp |
| } |
| |