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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 | FileCheck %s
; RUN: opt -S -passes=simplifycfg < %s | FileCheck %s
declare void @foo() convergent
define i32 @test_01(i32 %a) {
; CHECK-LABEL: @test_01(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[COND:%.*]] = icmp eq i32 [[A:%.*]], 0
; CHECK-NEXT: br i1 [[COND]], label [[MERGE:%.*]], label [[IF_FALSE:%.*]]
; CHECK: if.false:
; CHECK-NEXT: call void @foo()
; CHECK-NEXT: br label [[MERGE]]
; CHECK: merge:
; CHECK-NEXT: call void @foo()
; CHECK-NEXT: br i1 [[COND]], label [[EXIT:%.*]], label [[IF_FALSE_2:%.*]]
; CHECK: if.false.2:
; CHECK-NEXT: call void @foo()
; CHECK-NEXT: br label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret i32 [[A]]
;
entry:
%cond = icmp eq i32 %a, 0
br i1 %cond, label %merge, label %if.false
if.false:
call void @foo()
br label %merge
merge:
call void @foo()
br i1 %cond, label %exit, label %if.false.2
if.false.2:
call void @foo()
br label %exit
exit:
ret i32 %a
}
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