43 lines
1.6 KiB
LLVM
43 lines
1.6 KiB
LLVM
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; RUN: opt < %s -basic-aa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | FileCheck %s
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declare void @readonly_attr(i8* readonly nocapture)
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declare void @writeonly_attr(i8* writeonly nocapture)
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declare void @readnone_attr(i8* readnone nocapture)
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declare void @readonly_func(i8* nocapture) readonly
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declare void @writeonly_func(i8* nocapture) writeonly
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declare void @readnone_func(i8* nocapture) readnone
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declare void @read_write(i8* writeonly nocapture, i8* readonly nocapture, i8* readnone nocapture)
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declare void @func()
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define void @test(i8* noalias %p) {
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entry:
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call void @readonly_attr(i8* %p)
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call void @readonly_func(i8* %p)
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call void @writeonly_attr(i8* %p)
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call void @writeonly_func(i8* %p)
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call void @readnone_attr(i8* %p)
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call void @readnone_func(i8* %p)
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call void @read_write(i8* %p, i8* %p, i8* %p)
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call void @func() ["deopt" (i8* %p)]
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call void @writeonly_attr(i8* %p) ["deopt" (i8* %p)]
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ret void
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}
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; CHECK: Just Ref (MustAlias): Ptr: i8* %p <-> call void @readonly_attr(i8* %p)
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; CHECK: Just Ref: Ptr: i8* %p <-> call void @readonly_func(i8* %p)
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; CHECK: Just Mod (MustAlias): Ptr: i8* %p <-> call void @writeonly_attr(i8* %p)
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; CHECK: Just Mod: Ptr: i8* %p <-> call void @writeonly_func(i8* %p)
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; CHECK: NoModRef: Ptr: i8* %p <-> call void @readnone_attr(i8* %p)
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; CHECK: NoModRef: Ptr: i8* %p <-> call void @readnone_func(i8* %p)
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; CHECK: Both ModRef: Ptr: i8* %p <-> call void @read_write(i8* %p, i8* %p, i8* %p)
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; CHECK: Just Ref (MustAlias): Ptr: i8* %p <-> call void @func() [ "deopt"(i8* %p) ]
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; CHECK: Both ModRef: Ptr: i8* %p <-> call void @writeonly_attr(i8* %p) [ "deopt"(i8* %p) ]
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