test/Transforms/InstCombine/pr27343.ll

; 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
}