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Add a simple testcase for tbaa.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116272 91177308-0d34-0410-b5e6-96231b3b80d8
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test/Analysis/TypeBasedAliasAnalysis/aliastest.ll
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58
test/Analysis/TypeBasedAliasAnalysis/aliastest.ll
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@ -0,0 +1,58 @@
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; RUN: opt < %s -tbaa -gvn -S | FileCheck %s
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; CHECK: @test0_yes
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; CHECK: add i8 %x, %x
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define i8 @test0_yes(i8* %a, i8* %b) nounwind {
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%x = load i8* %a, !tbaa !1
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store i8 0, i8* %b, !tbaa !2
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%y = load i8* %a, !tbaa !1
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%z = add i8 %x, %y
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ret i8 %z
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}
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; CHECK: @test0_no
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; CHECK: add i8 %x, %y
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define i8 @test0_no(i8* %a, i8* %b) nounwind {
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%x = load i8* %a, !tbaa !3
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store i8 0, i8* %b, !tbaa !4
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%y = load i8* %a, !tbaa !3
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%z = add i8 %x, %y
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ret i8 %z
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}
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; CHECK: @test1_yes
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; CHECK: add i8 %x, %x
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define i8 @test1_yes(i8* %a, i8* %b) nounwind {
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%x = load i8* %a, !tbaa !5
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store i8 0, i8* %b
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%y = load i8* %a, !tbaa !5
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%z = add i8 %x, %y
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ret i8 %z
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}
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; CHECK: @test1_no
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; CHECK: add i8 %x, %y
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define i8 @test1_no(i8* %a, i8* %b) nounwind {
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%x = load i8* %a, !tbaa !6
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store i8 0, i8* %b
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%y = load i8* %a, !tbaa !6
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%z = add i8 %x, %y
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ret i8 %z
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}
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; Root note.
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!0 = metadata !{ }
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; Some type.
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!1 = metadata !{ metadata !"foo", metadata !0 }
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; Some other non-aliasing type.
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!2 = metadata !{ metadata !"bar", metadata !0 }
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; Some type.
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!3 = metadata !{ metadata !"foo", metadata !0 }
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; Some type in a different type system.
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!4 = metadata !{ metadata !"bar", metadata !"different" }
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; Invariant memory.
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!5 = metadata !{ metadata !"qux", metadata !0, i1 1 }
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; Not invariant memory.
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!6 = metadata !{ metadata !"qux", metadata !0, i1 0 }
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3
test/Analysis/TypeBasedAliasAnalysis/dg.exp
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3
test/Analysis/TypeBasedAliasAnalysis/dg.exp
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@ -0,0 +1,3 @@
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load_lib llvm.exp
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RunLLVMTests [lsort [glob -nocomplain $srcdir/$subdir/*.{ll,c,cpp}]]
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