1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -S -instcombine | FileCheck %s 3 4define i32 @__isnan(float %x) alwaysinline nounwind optsize { 5; CHECK-LABEL: @__isnan( 6; CHECK-NEXT: entry: 7; CHECK-NEXT: [[DOTCAST:%.*]] = bitcast float [[X:%.*]] to i32 8; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[DOTCAST]], 1 9; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[SHL]], -16777216 10; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 11; CHECK-NEXT: ret i32 [[CONV]] 12; 13entry: 14 %x.addr = alloca float, align 4 15 store float %x, float* %x.addr, align 4 16 %0 = load float, float* %x.addr, align 4 17 %1 = bitcast float %0 to i32 18 %shl = shl i32 %1, 1 19 %cmp = icmp ugt i32 %shl, -16777216 20 %conv = zext i1 %cmp to i32 21 ret i32 %conv 22} 23 24define i1 @icmp_shl7(i32 %x) { 25; CHECK-LABEL: @icmp_shl7( 26; CHECK-NEXT: [[SHL:%.*]] = shl i32 [[X:%.*]], 7 27; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[SHL]], 4608 28; CHECK-NEXT: ret i1 [[CMP]] 29; 30 %shl = shl i32 %x, 7 31 %cmp = icmp slt i32 %shl, 4608 32 ret i1 %cmp 33} 34