aa2009fe78
First step after e113317958,
in these tests, DomTree is valid afterwards, so mark them as such,
so that they don't regress.
In further steps, SimplifyCFG transforms shall taught to preserve DomTree,
in as small steps as possible.
43 lines
1.1 KiB
LLVM
43 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
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; RUN: opt -S -passes=simplify-cfg < %s | FileCheck %s
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declare void @foo() convergent
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define i32 @test_01(i32 %a) {
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; CHECK-LABEL: @test_01(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[COND:%.*]] = icmp eq i32 [[A:%.*]], 0
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; CHECK-NEXT: br i1 [[COND]], label [[MERGE:%.*]], label [[IF_FALSE:%.*]]
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; CHECK: if.false:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: br label [[MERGE]]
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; CHECK: merge:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: br i1 [[COND]], label [[EXIT:%.*]], label [[IF_FALSE_2:%.*]]
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; CHECK: if.false.2:
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; CHECK-NEXT: call void @foo()
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; CHECK-NEXT: br label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret i32 [[A]]
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;
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entry:
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%cond = icmp eq i32 %a, 0
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br i1 %cond, label %merge, label %if.false
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if.false:
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call void @foo()
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br label %merge
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merge:
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call void @foo()
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br i1 %cond, label %exit, label %if.false.2
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if.false.2:
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call void @foo()
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br label %exit
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exit:
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ret i32 %a
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}
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