diff options
Diffstat (limited to 'test/Transforms/GVN/tbaa.ll')
| -rw-r--r-- | test/Transforms/GVN/tbaa.ll | 61 |
1 files changed, 40 insertions, 21 deletions
diff --git a/test/Transforms/GVN/tbaa.ll b/test/Transforms/GVN/tbaa.ll index 7c05fda6cb8f..5cb4e0359970 100644 --- a/test/Transforms/GVN/tbaa.ll +++ b/test/Transforms/GVN/tbaa.ll @@ -1,7 +1,7 @@ ; RUN: opt -tbaa -basicaa -gvn -S < %s | FileCheck %s define i32 @test1(i8* %p, i8* %q) { -; CHECK: @test1(i8* %p, i8* %q) +; CHECK-LABEL: @test1(i8* %p, i8* %q) ; CHECK: call i32 @foo(i8* %p) ; CHECK-NOT: tbaa ; CHECK: %c = add i32 %a, %a @@ -12,7 +12,7 @@ define i32 @test1(i8* %p, i8* %q) { } define i32 @test2(i8* %p, i8* %q) { -; CHECK: @test2(i8* %p, i8* %q) +; CHECK-LABEL: @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 @@ -22,7 +22,7 @@ define i32 @test2(i8* %p, i8* %q) { } define i32 @test3(i8* %p, i8* %q) { -; CHECK: @test3(i8* %p, i8* %q) +; CHECK-LABEL: @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 @@ -32,7 +32,7 @@ define i32 @test3(i8* %p, i8* %q) { } define i32 @test4(i8* %p, i8* %q) { -; CHECK: @test4(i8* %p, i8* %q) +; CHECK-LABEL: @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 @@ -42,8 +42,8 @@ define i32 @test4(i8* %p, i8* %q) { } define i32 @test5(i8* %p, i8* %q) { -; CHECK: @test5(i8* %p, i8* %q) -; CHECK: call i32 @foo(i8* %p), !tbaa [[TAGA:!.*]] +; CHECK-LABEL: @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 @@ -52,8 +52,8 @@ define i32 @test5(i8* %p, i8* %q) { } define i32 @test6(i8* %p, i8* %q) { -; CHECK: @test6(i8* %p, i8* %q) -; CHECK: call i32 @foo(i8* %p), !tbaa [[TAGA:!.*]] +; CHECK-LABEL: @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 @@ -62,7 +62,7 @@ define i32 @test6(i8* %p, i8* %q) { } define i32 @test7(i8* %p, i8* %q) { -; CHECK: @test7(i8* %p, i8* %q) +; CHECK-LABEL: @test7(i8* %p, i8* %q) ; CHECK: call i32 @foo(i8* %p) ; CHECK-NOT: tbaa ; CHECK: %c = add i32 %a, %a @@ -72,10 +72,8 @@ define i32 @test7(i8* %p, i8* %q) { ret i32 %c } - - define i32 @test8(i32* %p, i32* %q) { -; CHECK-LABEL: test8 +; 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 @@ -87,8 +85,9 @@ define i32 @test8(i32* %p, i32* %q) { %c = sub i32 %a, %b ret i32 %c } + define i32 @test9(i32* %p, i32* %q) { -; CHECK-LABEL: test9 +; CHECK-LABEL: @test9 ; CHECK-NEXT: call void @clobber() ; CHECK-NEXT: ret i32 0 ; Since we know the location is invariant, we can forward the @@ -101,16 +100,27 @@ define i32 @test9(i32* %p, i32* %q) { ret i32 %c } +define i32 @test10(i8* %p, i8* %q) { +; If one access encloses the other, then the merged access is the enclosed one +; and not just the common final access type. +; CHECK-LABEL: @test10 +; CHECK: call i32 @foo(i8* %p), !tbaa [[TAG_X_i:!.*]] +; CHECK: %c = add i32 %a, %a + %a = call i32 @foo(i8* %p), !tbaa !15 ; TAG_X_i + %b = call i32 @foo(i8* %p), !tbaa !19 ; TAG_Y_x_i + %c = add 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} +; CHECK-DAG: [[TAGC]] = !{[[TYPEC:!.*]], [[TYPEC]], i64 0} +; CHECK-DAG: [[TYPEC]] = !{!"C", [[TYPEA:!.*]]} +; CHECK-DAG: [[TYPEA]] = !{!"A", !{{.*}}} +; CHECK-DAG: [[TAGB]] = !{[[TYPEB:!.*]], [[TYPEB]], i64 0} +; CHECK-DAG: [[TYPEB]] = !{!"B", [[TYPEA]]} +; CHECK-DAG: [[TAGA]] = !{[[TYPEA]], [[TYPEA]], i64 0} !0 = !{!5, !5, i64 0} !1 = !{!6, !6, i64 0} !2 = !{!"tbaa root"} @@ -122,8 +132,17 @@ declare i32 @foo(i8*) readonly !8 = !{!"another root"} !11 = !{!"scalar type", !8} +; CHECK-DAG: [[TAG_X_i]] = !{[[TYPE_X:!.*]], [[TYPE_int:!.*]], i64 0} +; CHECK-DAG: [[TYPE_X:!.*]] = !{!"struct X", [[TYPE_int]], i64 0} +; CHECK-DAG: [[TYPE_int]] = !{!"int", {{!.*}}, i64 0} +!15 = !{!16, !17, i64 0} ; TAG_X_i +!16 = !{!"struct X", !17, i64 0} ; struct X { int i; }; +!17 = !{!"int", !18, i64 0} +!18 = !{!"char", !2, i64 0} -;; A TBAA structure who's only point is to have a constant location +!19 = !{!20, !17, i64 0} ; TAG_Y_x_i +!20 = !{!"struct Y", !16, i64 0} ; struct Y { struct X x; }; + +; A TBAA structure who's only point is to have a constant location. !9 = !{!"yet another root"} !10 = !{!"node", !9, i64 1} - |