mirror of
https://github.com/jeremysrand/llvm-65816.git
synced 2024-07-06 16:28:59 +00:00
68 lines
1.7 KiB
LLVM
68 lines
1.7 KiB
LLVM
; RUN: opt < %s -tbaa -basicaa -gvn -S | FileCheck %s
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; Test that basic alias queries work.
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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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; Test that basic invariant-memory queries work.
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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 !7, metadata !7, i64 0}
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; Some other non-aliasing type.
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!2 = metadata !{metadata !8, metadata !8, i64 0}
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; Some type.
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!3 = metadata !{metadata !9, metadata !9, i64 0}
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; Some type in a different type system.
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!4 = metadata !{metadata !10, metadata !10, i64 0}
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; Invariant memory.
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!5 = metadata !{metadata !11, metadata !11, i64 0, i1 1}
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; Not invariant memory.
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!6 = metadata !{metadata !11, metadata !11, i64 0, i1 0}
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!7 = metadata !{ metadata !"foo", metadata !0 }
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!8 = metadata !{ metadata !"bar", metadata !0 }
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!9 = metadata !{ metadata !"foo", metadata !0 }
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!10 = metadata !{ metadata !"bar", metadata !"different" }
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!11 = metadata !{ metadata !"qux", metadata !0}
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