test/Transforms/SROA/tbaa-struct2.ll

; RUN: opt -S -passes=sroa %s | FileCheck %s

; SROA should correctly offset `!tbaa.struct` metadata

%struct.Wishart = type { double, i32 }
declare void @llvm.memcpy.p0.p0.i64(ptr writeonly, ptr readonly, i64, i1 immarg)
declare double @subcall(double %g, i32 %m)

define double @bar(ptr %wishart) {
  %tmp = alloca %struct.Wishart, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %tmp, ptr align 8 %wishart, i64 16, i1 false), !tbaa.struct !2
  %lg = load double, ptr %tmp, align 8, !tbaa !4
  %m = getelementptr inbounds %struct.Wishart, ptr %tmp, i32 0, i32 1
  %lm = load i32, ptr %m, align 8, !tbaa !8
  %call = call double @subcall(double %lg, i32 %lm)
  ret double %call
}

!2 = !{i64 0, i64 8, !3, i64 8, i64 4, !7}
!3 = !{!4, !4, i64 0}
!4 = !{!"double", !5, i64 0}
!5 = !{!"omnipotent char", !6, i64 0}
!6 = !{!"Simple C++ TBAA"}
!7 = !{!8, !8, i64 0}
!8 = !{!"int", !5, i64 0}

; CHECK: define double @bar(ptr %wishart) {
; CHECK-NEXT:   %tmp.sroa.3 = alloca [4 x i8], align 4
; CHECK-NEXT:   %tmp.sroa.0.0.copyload = load double, ptr %wishart, align 8, !tbaa.struct !0
; CHECK-NEXT:   %tmp.sroa.2.0.wishart.sroa_idx = getelementptr inbounds i8, ptr %wishart, i64 8
; CHECK-NEXT:   %tmp.sroa.2.0.copyload = load i32, ptr %tmp.sroa.2.0.wishart.sroa_idx, align 8, !tbaa.struct !7
; CHECK-NEXT:   %tmp.sroa.3.0.wishart.sroa_idx = getelementptr inbounds i8, ptr %wishart, i64 12
; 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
; CHECK-NEXT:   %call = call double @subcall(double %tmp.sroa.0.0.copyload, i32 %tmp.sroa.2.0.copyload)
; CHECK-NEXT:   ret double %call
; CHECK-NEXT: }

; CHECK: !0 = !{i64 0, i64 8, !1, i64 8, i64 4, !5}
; CHECK: !1 = !{!2, !2, i64 0}
; CHECK: !2 = !{!"double", !{{[0-9]+}}, i64 0}

; CHECK: !5 = !{!6, !6, i64 0}
; CHECK: !6 = !{!"int", !{{[0-9]+}}, i64 0}
; CHECK: !7 = !{i64 0, i64 4, !5}
; CHECK: !8 = !{}