forked from OSchip/llvm-project
33 lines
691 B
LLVM
33 lines
691 B
LLVM
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; RUN: opt < %s -simplifycfg -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_or_null metadata is combined
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; CHECK: load i32*, i32** %p
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; CHECK-SAME: !dereferenceable_or_null ![[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_or_null !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_or_null !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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