llvm-project/llvm/test/Transforms/SimplifyCFG/hoist-common-code.ll

27 lines
812 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S -hoist-common-insts=true | FileCheck %s
declare void @bar(i32)
define void @test(i1 %P, i32* %Q) {
; CHECK-LABEL: @test(
; CHECK-NEXT: common.ret:
; CHECK-NEXT: store i32 1, i32* [[Q:%.*]], align 4
; CHECK-NEXT: [[A:%.*]] = load i32, i32* [[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, i32* %Q
%A = load i32, i32* %Q ; <i32> [#uses=1]
call void @bar( i32 %A )
ret void
F: ; preds = %0
store i32 1, i32* %Q
%B = load i32, i32* %Q ; <i32> [#uses=1]
call void @bar( i32 %B )
ret void
}