derek.holloway
7502bf64a4
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77 lines
2.9 KiB
LLVM
77 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --scrub-attributes --version 6
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; RUN: opt < %s -passes=argpromotion -S | FileCheck %s
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; PR17906
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; When we promote two arguments in a single function with different types,
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; before the fix, we used the same tag for the newly-created two loads.
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; This testing case makes sure that we correctly transfer the tbaa tags from the
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; original loads to the newly-created loads when promoting pointer arguments.
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@a = global ptr null, align 8
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@e = global ptr @a, align 8
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@g = global i32 0, align 4
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@c = global i64 0, align 8
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@d = global i8 0, align 1
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define internal fastcc void @fn(ptr nocapture readonly %p1, ptr nocapture readonly %p2) {
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; CHECK-LABEL: define internal fastcc void @fn(
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; CHECK-SAME: i32 [[P1_0_VAL:%.*]], i64 [[P2_0_VAL:%.*]]) {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[CONV:%.*]] = trunc i64 [[P2_0_VAL]] to i32
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; CHECK-NEXT: [[CONV1:%.*]] = trunc i32 [[P1_0_VAL]] to i8
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; CHECK-NEXT: store i8 [[CONV1]], ptr @d, align 1, !tbaa [[CHAR_TBAA0:![0-9]+]]
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; CHECK-NEXT: ret void
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;
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entry:
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%0 = load i64, ptr %p2, align 8, !tbaa !1
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%conv = trunc i64 %0 to i32
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%1 = load i32, ptr %p1, align 4, !tbaa !5
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%conv1 = trunc i32 %1 to i8
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store i8 %conv1, ptr @d, align 1, !tbaa !7
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ret void
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}
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define i32 @main() {
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; CHECK-LABEL: define i32 @main() {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr @e, align 8, !tbaa [[ANYPTR_TBAA3:![0-9]+]]
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; CHECK-NEXT: store ptr @g, ptr [[TMP0]], align 8, !tbaa [[ANYPTR_TBAA3]]
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; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr @a, align 8, !tbaa [[ANYPTR_TBAA3]]
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; CHECK-NEXT: store i32 1, ptr [[TMP1]], align 4, !tbaa [[INT_TBAA5:![0-9]+]]
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; CHECK-NEXT: [[G_VAL:%.*]] = load i32, ptr @g, align 4, !tbaa [[INT_TBAA5]]
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; CHECK-NEXT: [[C_VAL:%.*]] = load i64, ptr @c, align 8, !tbaa [[LONG_TBAA7:![0-9]+]]
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; CHECK-NEXT: call fastcc void @fn(i32 [[G_VAL]], i64 [[C_VAL]])
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%0 = load ptr, ptr @e, align 8, !tbaa !8
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store ptr @g, ptr %0, align 8, !tbaa !8
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%1 = load ptr, ptr @a, align 8, !tbaa !8
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store i32 1, ptr %1, align 4, !tbaa !5
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call fastcc void @fn(ptr @g, ptr @c)
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ret i32 0
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}
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!1 = !{!2, !2, i64 0}
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!2 = !{!"long", !3, i64 0}
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!3 = !{!"omnipotent char", !4, i64 0}
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!4 = !{!"Simple C/C++ TBAA"}
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!5 = !{!6, !6, i64 0}
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!6 = !{!"int", !3, i64 0}
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!7 = !{!3, !3, i64 0}
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!8 = !{!9, !9, i64 0}
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!9 = !{!"any pointer", !3, i64 0}
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;.
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; CHECK: [[CHAR_TBAA0]] = !{[[META1:![0-9]+]], [[META1]], i64 0}
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; CHECK: [[META1]] = !{!"omnipotent char", [[META2:![0-9]+]], i64 0}
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; CHECK: [[META2]] = !{!"Simple C/C++ TBAA"}
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; CHECK: [[ANYPTR_TBAA3]] = !{[[META4:![0-9]+]], [[META4]], i64 0}
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; CHECK: [[META4]] = !{!"any pointer", [[META1]], i64 0}
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; CHECK: [[INT_TBAA5]] = !{[[META6:![0-9]+]], [[META6]], i64 0}
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; CHECK: [[META6]] = !{!"int", [[META1]], i64 0}
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; CHECK: [[LONG_TBAA7]] = !{[[META8:![0-9]+]], [[META8]], i64 0}
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; CHECK: [[META8]] = !{!"long", [[META1]], i64 0}
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;.
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