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