| ; RUN: opt < %s -argpromotion -S | FileCheck %s |
| ; RUN: opt < %s -passes=argpromotion -S | FileCheck %s |
| |
| ; PR17906 |
| ; When we promote two arguments in a single function with different types, |
| ; before the fix, we used the same tag for the newly-created two loads. |
| ; This testing case makes sure that we correctly transfer the tbaa tags from the |
| ; original loads to the newly-created loads when promoting pointer arguments. |
| |
| @a = global i32* null, align 8 |
| @e = global i32** @a, align 8 |
| @g = global i32 0, align 4 |
| @c = global i64 0, align 8 |
| @d = global i8 0, align 1 |
| |
| define internal fastcc void @fn(i32* nocapture readonly %p1, i64* nocapture readonly %p2) { |
| entry: |
| %0 = load i64, i64* %p2, align 8, !tbaa !1 |
| %conv = trunc i64 %0 to i32 |
| %1 = load i32, i32* %p1, align 4, !tbaa !5 |
| %conv1 = trunc i32 %1 to i8 |
| store i8 %conv1, i8* @d, align 1, !tbaa !7 |
| ret void |
| } |
| |
| define i32 @main() { |
| entry: |
| ; CHECK-LABEL: main |
| ; CHECK: store i32 1, i32* %{{.*}}, align 4, !tbaa ![[I32:[0-9]+]] |
| ; CHECK: %g.val = load i32, i32* @g, align 4, !tbaa ![[I32]] |
| ; CHECK: %c.val = load i64, i64* @c, align 8, !tbaa ![[LONG:[0-9]+]] |
| %0 = load i32**, i32*** @e, align 8, !tbaa !8 |
| store i32* @g, i32** %0, align 8, !tbaa !8 |
| %1 = load i32*, i32** @a, align 8, !tbaa !8 |
| store i32 1, i32* %1, align 4, !tbaa !5 |
| call fastcc void @fn(i32* @g, i64* @c) |
| |
| ret i32 0 |
| } |
| |
| !1 = !{!2, !2, i64 0} |
| !2 = !{!"long", !3, i64 0} |
| !3 = !{!"omnipotent char", !4, i64 0} |
| !4 = !{!"Simple C/C++ TBAA"} |
| !5 = !{!6, !6, i64 0} |
| !6 = !{!"int", !3, i64 0} |
| !7 = !{!3, !3, i64 0} |
| !8 = !{!9, !9, i64 0} |
| !9 = !{!"any pointer", !3, i64 0} |
| ; CHECK: ![[I32]] = !{![[I32_TYPE:[0-9]+]], ![[I32_TYPE]], i64 0} |
| ; CHECK: ![[I32_TYPE]] = !{!"int", !{{.*}}, i64 0} |
| ; CHECK: ![[LONG]] = !{![[LONG_TYPE:[0-9]+]], ![[LONG_TYPE]], i64 0} |
| ; CHECK: ![[LONG_TYPE]] = !{!"long", !{{.*}}, i64 0} |
