llvm-project/llvm/test/Transforms/SimplifyCFG/branch-cond-merge.ll

25 lines
815 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -instcombine \
; RUN: -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
declare void @bar()
define void @test(i32 %X, i32 %Y) {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: ret void
;
entry:
%tmp.2 = icmp ne i32 %X, %Y ; <i1> [#uses=1]
br i1 %tmp.2, label %shortcirc_next, label %UnifiedReturnBlock
shortcirc_next: ; preds = %entry
%tmp.3 = icmp ne i32 %X, %Y ; <i1> [#uses=1]
br i1 %tmp.3, label %UnifiedReturnBlock, label %then
then: ; preds = %shortcirc_next
call void @bar( )
ret void
UnifiedReturnBlock: ; preds = %shortcirc_next, %entry
ret void
}