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.
30 lines
840 B
LLVM
30 lines
840 B
LLVM
; RUN: opt < %s -mem2reg -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck -enable-var-scope %s
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define i32 @test(i32 %x) {
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; CHECK-LABEL: @test
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entry:
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%y = alloca i32, align 4
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%tobool = icmp ne i32 %x, 0
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br i1 %tobool, label %if.then, label %if.else
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if.then:
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; CHECK: if.then:
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; CHECK: [[ASM1:%.*]] = call i32 asm "mov $0, #1", "=r"()
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%tmp1 = call i32 asm "mov $0, #1", "=r"() nounwind readnone
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store i32 %tmp1, i32* %y, align 4
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br label %if.end
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if.else:
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; CHECK: if.else:
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; CHECK: [[ASM2:%.*]] = call i32 asm "mov $0, #2", "=r"()
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%tmp2 = call i32 asm "mov $0, #2", "=r"() nounwind readnone
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store i32 %tmp2, i32* %y, align 4
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br label %if.end
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if.end:
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; CHECK: if.end:
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; CHECK: {{%.*}} = phi i32 [ [[ASM1]], %if.then ], [ [[ASM2]], %if.else ]
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%tmp3 = load i32, i32* %y, align 4
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ret i32 %tmp3
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}
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