; LLVM IR from aspuru-guzik-group/qtorch :: nlopt-2.4.2/stogo/linalg.ll (ZN7RMatrixC2Ei)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%class.RMatrix = type <{ ptr, i32, [4 x i8] }>

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #0

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(12) ptr @_ZN7RMatrixaSEd(ptr noundef nonnull align 8 dereferenceable(12), double noundef) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7RMatrixC2Ei(ptr noundef nonnull align 8 dereferenceable(12) %0, i32 noundef %1) unnamed_addr #3 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %5 = load ptr, ptr %3, align 8
  %6 = load i32, ptr %4, align 4, !tbaa !9
  %7 = getelementptr inbounds %class.RMatrix, ptr %5, i32 0, i32 1
  store i32 %6, ptr %7, align 8, !tbaa !11
  %8 = getelementptr inbounds %class.RMatrix, ptr %5, i32 0, i32 1
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = sext i32 %9 to i64
  %11 = getelementptr inbounds %class.RMatrix, ptr %5, i32 0, i32 1
  %12 = load i32, ptr %11, align 8, !tbaa !11
  %13 = sext i32 %12 to i64
  %14 = mul nsw i64 %10, %13
  %15 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %14, i64 8)
  %16 = extractvalue { i64, i1 } %15, 1
  %17 = extractvalue { i64, i1 } %15, 0
  %18 = select i1 %16, i64 -1, i64 %17
  %19 = call noalias noundef nonnull ptr @_Znam(i64 noundef %18) #4
  %20 = getelementptr inbounds %class.RMatrix, ptr %5, i32 0, i32 0
  store ptr %19, ptr %20, align 8, !tbaa !13
  %21 = call noundef nonnull align 8 dereferenceable(12) ptr @_ZN7RMatrixaSEd(ptr noundef nonnull align 8 dereferenceable(12) %5, double noundef 0.000000e+00)
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { builtin allocsize(0) }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTS7RMatrix", !6, i64 0, !10, i64 8}
!13 = !{!12, !6, i64 0}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(12) ptr @_ZN7RMatrixaSEd(ptr noundef nonnull align 8 dereferenceable(12), double noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7RMatrixC2Ei(ptr noundef nonnull align 8 dereferenceable(12) %0, i32 noundef %1) unnamed_addr #2 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  store i32 %1, ptr %3, align 8, !tbaa !5
  %4 = sext i32 %1 to i64
  %5 = mul nsw i64 %4, %4
  %6 = icmp ugt i64 %5, 2305843009213693951
  %7 = shl nuw i64 %5, 3
  %8 = select i1 %6, i64 -1, i64 %7
  %9 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %8) #3
  store ptr %9, ptr %0, align 8, !tbaa !11
  %10 = tail call noundef nonnull align 8 dereferenceable(12) ptr @_ZN7RMatrixaSEd(ptr noundef nonnull align 8 dereferenceable(12) %0, double noundef 0.000000e+00)
  ret void
}

attributes #0 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { builtin allocsize(0) }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !10, i64 8}
!6 = !{!"_ZTS7RMatrix", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass