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.
33 lines
728 B
LLVM
33 lines
728 B
LLVM
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -hoist-common-insts=true -S | FileCheck %s
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declare void @bar(i32*)
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declare void @baz(i32*)
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; CHECK-LABEL: @test_load_combine_metadata(
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; Check that dereferenceable metadata is combined
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; CHECK: load i32*, i32** %p
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; CHECK-SAME: !dereferenceable ![[DEREF:[0-9]+]]
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; CHECK: t:
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; CHECK: f:
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define void @test_load_combine_metadata(i1 %c, i32** %p) {
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br i1 %c, label %t, label %f
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t:
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%v1 = load i32*, i32** %p, !dereferenceable !0
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call void @bar(i32* %v1)
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br label %cont
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f:
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%v2 = load i32*, i32** %p, !dereferenceable !1
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call void @baz(i32* %v2)
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br label %cont
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cont:
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ret void
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}
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; CHECK: ![[DEREF]] = !{i64 8}
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!0 = !{i64 8}
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!1 = !{i64 16}
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