File: hoist-common-code.ll

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llvm-toolchain-17 1%3A17.0.6-22
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -hoist-common-insts=true | FileCheck %s

declare void @bar(i32)

define void @test(i1 %P, ptr %Q) {
; CHECK-LABEL: @test(
; CHECK-NEXT:  common.ret:
; CHECK-NEXT:    store i32 1, ptr [[Q:%.*]], align 4
; CHECK-NEXT:    [[A:%.*]] = load i32, ptr [[Q]], align 4
; CHECK-NEXT:    call void @bar(i32 [[A]])
; CHECK-NEXT:    ret void
;
  br i1 %P, label %T, label %F
T:              ; preds = %0
  store i32 1, ptr %Q
  %A = load i32, ptr %Q               ; <i32> [#uses=1]
  call void @bar( i32 %A )
  ret void
F:              ; preds = %0
  store i32 1, ptr %Q
  %B = load i32, ptr %Q               ; <i32> [#uses=1]
  call void @bar( i32 %B )
  ret void
}