46 lines
1.9 KiB
LLVM
46 lines
1.9 KiB
LLVM
; RUN: opt -S -passes=sroa %s | FileCheck %s
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; SROA should correctly offset `!tbaa.struct` metadata
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%struct.Wishart = type { double, i32 }
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declare void @llvm.memcpy.p0.p0.i64(ptr writeonly, ptr readonly, i64, i1 immarg)
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declare double @subcall(double %g, i32 %m)
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define double @bar(ptr %wishart) {
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%tmp = alloca %struct.Wishart, align 8
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call void @llvm.memcpy.p0.p0.i64(ptr align 8 %tmp, ptr align 8 %wishart, i64 16, i1 false), !tbaa.struct !2
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%lg = load double, ptr %tmp, align 8, !tbaa !4
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%m = getelementptr inbounds %struct.Wishart, ptr %tmp, i32 0, i32 1
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%lm = load i32, ptr %m, align 8, !tbaa !8
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%call = call double @subcall(double %lg, i32 %lm)
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ret double %call
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}
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!2 = !{i64 0, i64 8, !3, i64 8, i64 4, !7}
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!3 = !{!4, !4, i64 0}
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!4 = !{!"double", !5, i64 0}
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!5 = !{!"omnipotent char", !6, i64 0}
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!6 = !{!"Simple C++ TBAA"}
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!7 = !{!8, !8, i64 0}
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!8 = !{!"int", !5, i64 0}
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; CHECK: define double @bar(ptr %wishart) {
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; CHECK-NEXT: %tmp.sroa.3 = alloca [4 x i8], align 4
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; CHECK-NEXT: %tmp.sroa.0.0.copyload = load double, ptr %wishart, align 8, !tbaa.struct !0
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; CHECK-NEXT: %tmp.sroa.2.0.wishart.sroa_idx = getelementptr inbounds i8, ptr %wishart, i64 8
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; CHECK-NEXT: %tmp.sroa.2.0.copyload = load i32, ptr %tmp.sroa.2.0.wishart.sroa_idx, align 8, !tbaa.struct !7
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; CHECK-NEXT: %tmp.sroa.3.0.wishart.sroa_idx = getelementptr inbounds i8, ptr %wishart, i64 12
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %tmp.sroa.3, ptr align 4 %tmp.sroa.3.0.wishart.sroa_idx, i64 4, i1 false), !tbaa.struct !8
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; CHECK-NEXT: %call = call double @subcall(double %tmp.sroa.0.0.copyload, i32 %tmp.sroa.2.0.copyload)
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; CHECK-NEXT: ret double %call
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; CHECK-NEXT: }
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; CHECK: !0 = !{i64 0, i64 8, !1, i64 8, i64 4, !5}
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; CHECK: !1 = !{!2, !2, i64 0}
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; CHECK: !2 = !{!"double", !{{[0-9]+}}, i64 0}
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; CHECK: !5 = !{!6, !6, i64 0}
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; CHECK: !6 = !{!"int", !{{[0-9]+}}, i64 0}
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; CHECK: !7 = !{i64 0, i64 4, !5}
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; CHECK: !8 = !{}
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