mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
130 lines
3.2 KiB
LLVM
130 lines
3.2 KiB
LLVM
; RUN: opt -tbaa -basicaa -newgvn -S < %s | FileCheck %s
|
|
|
|
define i32 @test1(i8* %p, i8* %q) {
|
|
; CHECK: @test1(i8* %p, i8* %q)
|
|
; CHECK: call i32 @foo(i8* %p)
|
|
; CHECK-NOT: tbaa
|
|
; CHECK: %c = add i32 %a, %a
|
|
%a = call i32 @foo(i8* %p), !tbaa !0
|
|
%b = call i32 @foo(i8* %p)
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
define i32 @test2(i8* %p, i8* %q) {
|
|
; CHECK: @test2(i8* %p, i8* %q)
|
|
; CHECK: call i32 @foo(i8* %p), !tbaa [[TAGC:!.*]]
|
|
; CHECK: %c = add i32 %a, %a
|
|
%a = call i32 @foo(i8* %p), !tbaa !0
|
|
%b = call i32 @foo(i8* %p), !tbaa !0
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
define i32 @test3(i8* %p, i8* %q) {
|
|
; CHECK: @test3(i8* %p, i8* %q)
|
|
; CHECK: call i32 @foo(i8* %p), !tbaa [[TAGB:!.*]]
|
|
; CHECK: %c = add i32 %a, %a
|
|
%a = call i32 @foo(i8* %p), !tbaa !3
|
|
%b = call i32 @foo(i8* %p), !tbaa !3
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
define i32 @test4(i8* %p, i8* %q) {
|
|
; CHECK: @test4(i8* %p, i8* %q)
|
|
; CHECK: call i32 @foo(i8* %p), !tbaa [[TAGA:!.*]]
|
|
; CHECK: %c = add i32 %a, %a
|
|
%a = call i32 @foo(i8* %p), !tbaa !1
|
|
%b = call i32 @foo(i8* %p), !tbaa !0
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
define i32 @test5(i8* %p, i8* %q) {
|
|
; CHECK: @test5(i8* %p, i8* %q)
|
|
; CHECK: call i32 @foo(i8* %p), !tbaa [[TAGA:!.*]]
|
|
; CHECK: %c = add i32 %a, %a
|
|
%a = call i32 @foo(i8* %p), !tbaa !0
|
|
%b = call i32 @foo(i8* %p), !tbaa !1
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
define i32 @test6(i8* %p, i8* %q) {
|
|
; CHECK: @test6(i8* %p, i8* %q)
|
|
; CHECK: call i32 @foo(i8* %p), !tbaa [[TAGA:!.*]]
|
|
; CHECK: %c = add i32 %a, %a
|
|
%a = call i32 @foo(i8* %p), !tbaa !0
|
|
%b = call i32 @foo(i8* %p), !tbaa !3
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
define i32 @test7(i8* %p, i8* %q) {
|
|
; CHECK: @test7(i8* %p, i8* %q)
|
|
; CHECK: call i32 @foo(i8* %p)
|
|
; CHECK-NOT: tbaa
|
|
; CHECK: %c = add i32 %a, %a
|
|
%a = call i32 @foo(i8* %p), !tbaa !4
|
|
%b = call i32 @foo(i8* %p), !tbaa !3
|
|
%c = add i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
|
|
|
|
define i32 @test8(i32* %p, i32* %q) {
|
|
; CHECK-LABEL: test8
|
|
; CHECK-NEXT: store i32 15, i32* %p
|
|
; CHECK-NEXT: ret i32 0
|
|
; Since we know the location is invariant, we can forward the
|
|
; load across the potentially aliasing store.
|
|
|
|
%a = load i32, i32* %q, !tbaa !10
|
|
store i32 15, i32* %p
|
|
%b = load i32, i32* %q, !tbaa !10
|
|
%c = sub i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
define i32 @test9(i32* %p, i32* %q) {
|
|
; CHECK-LABEL: test9
|
|
; CHECK-NEXT: call void @clobber()
|
|
; CHECK-NEXT: ret i32 0
|
|
; Since we know the location is invariant, we can forward the
|
|
; load across the potentially aliasing store (within the call).
|
|
|
|
%a = load i32, i32* %q, !tbaa !10
|
|
call void @clobber()
|
|
%b = load i32, i32* %q, !tbaa !10
|
|
%c = sub i32 %a, %b
|
|
ret i32 %c
|
|
}
|
|
|
|
|
|
declare void @clobber()
|
|
declare i32 @foo(i8*) readonly
|
|
|
|
; CHECK: [[TAGC]] = !{[[TYPEC:!.*]], [[TYPEC]], i64 0}
|
|
; CHECK: [[TYPEC]] = !{!"C", [[TYPEA:!.*]]}
|
|
; CHECK: [[TYPEA]] = !{!"A", !{{.*}}}
|
|
; CHECK: [[TAGB]] = !{[[TYPEB:!.*]], [[TYPEB]], i64 0}
|
|
; CHECK: [[TYPEB]] = !{!"B", [[TYPEA]]}
|
|
; CHECK: [[TAGA]] = !{[[TYPEA]], [[TYPEA]], i64 0}
|
|
!0 = !{!5, !5, i64 0}
|
|
!1 = !{!6, !6, i64 0}
|
|
!2 = !{!"tbaa root"}
|
|
!3 = !{!7, !7, i64 0}
|
|
!4 = !{!11, !11, i64 0}
|
|
!5 = !{!"C", !6}
|
|
!6 = !{!"A", !2}
|
|
!7 = !{!"B", !6}
|
|
!8 = !{!"another root"}
|
|
!11 = !{!"scalar type", !8}
|
|
|
|
|
|
;; A TBAA structure who's only point is to have a constant location
|
|
!9 = !{!"yet another root"}
|
|
!10 = !{!"node", !9, i64 1}
|
|
|