| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -S -instcombine | FileCheck %s |
| |
| define i32 @__isnan(float %x) alwaysinline nounwind optsize { |
| ; CHECK-LABEL: @__isnan( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[DOTCAST:%.*]] = bitcast float [[X:%.*]] to i32 |
| ; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[DOTCAST]], 1 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[SHL]], -16777216 |
| ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| ; CHECK-NEXT: ret i32 [[CONV]] |
| ; |
| entry: |
| %x.addr = alloca float, align 4 |
| store float %x, float* %x.addr, align 4 |
| %0 = load float, float* %x.addr, align 4 |
| %1 = bitcast float %0 to i32 |
| %shl = shl i32 %1, 1 |
| %cmp = icmp ugt i32 %shl, -16777216 |
| %conv = zext i1 %cmp to i32 |
| ret i32 %conv |
| } |
| |
| define i1 @icmp_shl7(i32 %x) { |
| ; CHECK-LABEL: @icmp_shl7( |
| ; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[X:%.*]], 7 |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[SHL]], 4608 |
| ; CHECK-NEXT: ret i1 [[CMP]] |
| ; |
| %shl = shl i32 %x, 7 |
| %cmp = icmp slt i32 %shl, 4608 |
| ret i1 %cmp |
| } |