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115 lines
4.5 KiB
LLVM
115 lines
4.5 KiB
LLVM
; RUN: opt -basicaa -print-alias-sets -S -o - < %s 2>&1 | FileCheck %s
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@s = global i8 1, align 1
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@d = global i8 2, align 1
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; CHECK: Alias sets for function 'test1':
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; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
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; CHECK-NOT: 1 Unknown instructions
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
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define void @test1(i8* %s, i8* %d) {
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entry:
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%a = alloca i8, align 1
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%b = alloca i8, align 1
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store i8 1, i8* %a, align 1
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 false)
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store i8 1, i8* %b, align 1
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ret void
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}
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; CHECK: Alias sets for function 'test2':
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; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
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; CHECK-NOT: 1 Unknown instructions
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref [volatile] Pointers: (i8* %s, 1), (i8* %d, 1)
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
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define void @test2(i8* %s, i8* %d) {
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entry:
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%a = alloca i8, align 1
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%b = alloca i8, align 1
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store i8 1, i8* %a, align 1
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 true)
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store i8 1, i8* %b, align 1
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ret void
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}
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; CHECK: Alias sets for function 'test3':
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; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
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; CHECK-NOT: 1 Unknown instructions
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
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define void @test3(i8* %s, i8* %d) {
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entry:
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%a = alloca i8, align 1
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%b = alloca i8, align 1
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store i8 1, i8* %a, align 1
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call void @llvm.memmove.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 false)
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store i8 1, i8* %b, align 1
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ret void
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}
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; CHECK: Alias sets for function 'test4':
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; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
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; CHECK-NOT: 1 Unknown instructions
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref [volatile] Pointers: (i8* %s, 1), (i8* %d, 1)
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
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define void @test4(i8* %s, i8* %d) {
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entry:
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%a = alloca i8, align 1
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%b = alloca i8, align 1
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store i8 1, i8* %a, align 1
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call void @llvm.memmove.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i32 1, i1 true)
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store i8 1, i8* %b, align 1
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ret void
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}
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; CHECK: Alias sets for function 'test5':
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; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %a, 1)
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
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define void @test5() {
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entry:
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%a = alloca i8, align 1
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%b = alloca i8, align 1
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store i8 1, i8* %a, align 1
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 1, i32 1, i1 false)
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store i8 1, i8* %b, align 1
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ret void
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}
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; CHECK: Alias sets for function 'test6':
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; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %a, 1)
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
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define void @test6() {
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entry:
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%a = alloca i8, align 1
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%b = alloca i8, align 1
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store i8 1, i8* %a, align 1
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call void @llvm.memmove.p0i8.p0i8.i64(i8* %b, i8* %a, i64 1, i32 1, i1 false)
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store i8 1, i8* %b, align 1
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ret void
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}
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; CHECK: Alias sets for function 'test7':
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; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %a, 1)
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; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod/Ref Pointers: (i8* %b, 1)
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define void @test7() {
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entry:
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%a = alloca i8, align 1
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%b = alloca i8, align 1
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store i8 1, i8* %a, align 1
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 1, i32 1, i1 false)
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 1, i32 1, i1 false)
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store i8 1, i8* %b, align 1
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ret void
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i32, i1)
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declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1)
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