2010-12-16 02:53:48 +00:00
|
|
|
; RUN: opt < %s -tbaa -basicaa -gvn -S | FileCheck %s
|
2010-10-11 23:54:13 +00:00
|
|
|
|
2010-10-20 22:04:02 +00:00
|
|
|
; Test that basic alias queries work.
|
|
|
|
|
2010-10-11 23:54:13 +00:00
|
|
|
; CHECK: @test0_yes
|
|
|
|
; CHECK: add i8 %x, %x
|
|
|
|
define i8 @test0_yes(i8* %a, i8* %b) nounwind {
|
|
|
|
%x = load i8* %a, !tbaa !1
|
|
|
|
store i8 0, i8* %b, !tbaa !2
|
|
|
|
%y = load i8* %a, !tbaa !1
|
|
|
|
%z = add i8 %x, %y
|
|
|
|
ret i8 %z
|
|
|
|
}
|
|
|
|
|
|
|
|
; CHECK: @test0_no
|
|
|
|
; CHECK: add i8 %x, %y
|
|
|
|
define i8 @test0_no(i8* %a, i8* %b) nounwind {
|
|
|
|
%x = load i8* %a, !tbaa !3
|
|
|
|
store i8 0, i8* %b, !tbaa !4
|
|
|
|
%y = load i8* %a, !tbaa !3
|
|
|
|
%z = add i8 %x, %y
|
|
|
|
ret i8 %z
|
|
|
|
}
|
|
|
|
|
2010-10-20 22:04:02 +00:00
|
|
|
; Test that basic invariant-memory queries work.
|
|
|
|
|
2010-10-11 23:54:13 +00:00
|
|
|
; CHECK: @test1_yes
|
|
|
|
; CHECK: add i8 %x, %x
|
|
|
|
define i8 @test1_yes(i8* %a, i8* %b) nounwind {
|
|
|
|
%x = load i8* %a, !tbaa !5
|
|
|
|
store i8 0, i8* %b
|
|
|
|
%y = load i8* %a, !tbaa !5
|
|
|
|
%z = add i8 %x, %y
|
|
|
|
ret i8 %z
|
|
|
|
}
|
|
|
|
|
|
|
|
; CHECK: @test1_no
|
|
|
|
; CHECK: add i8 %x, %y
|
|
|
|
define i8 @test1_no(i8* %a, i8* %b) nounwind {
|
|
|
|
%x = load i8* %a, !tbaa !6
|
|
|
|
store i8 0, i8* %b
|
|
|
|
%y = load i8* %a, !tbaa !6
|
|
|
|
%z = add i8 %x, %y
|
|
|
|
ret i8 %z
|
|
|
|
}
|
|
|
|
|
|
|
|
; Root note.
|
|
|
|
!0 = metadata !{ }
|
|
|
|
; Some type.
|
|
|
|
!1 = metadata !{ metadata !"foo", metadata !0 }
|
|
|
|
; Some other non-aliasing type.
|
|
|
|
!2 = metadata !{ metadata !"bar", metadata !0 }
|
|
|
|
|
|
|
|
; Some type.
|
|
|
|
!3 = metadata !{ metadata !"foo", metadata !0 }
|
|
|
|
; Some type in a different type system.
|
|
|
|
!4 = metadata !{ metadata !"bar", metadata !"different" }
|
|
|
|
|
|
|
|
; Invariant memory.
|
|
|
|
!5 = metadata !{ metadata !"qux", metadata !0, i1 1 }
|
|
|
|
; Not invariant memory.
|
|
|
|
!6 = metadata !{ metadata !"qux", metadata !0, i1 0 }
|