; LLVM IR from dafer45/TBTK :: Lib/src/Utilities/SpinMatrix.ll (ZN4TBTK10SpinMatrixaSESt7complexIdE)

; 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.std::complex" = type { { double, double } }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumRowsEv(ptr noundef nonnull align 8 dereferenceable(64)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumColsEv(ptr noundef nonnull align 8 dereferenceable(64)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZN4TBTK6MatrixISt7complexIdELj2ELj2EE2atEjj(ptr noundef nonnull align 8 dereferenceable(64), i32 noundef, i32 noundef) #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 8 dereferenceable(64) ptr @_ZN4TBTK10SpinMatrixaSESt7complexIdE(ptr noundef nonnull align 8 dereferenceable(64) %0, double %1, double %2) #3 align 2 {
  %4 = alloca %"class.std::complex", align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = getelementptr inbounds { double, double }, ptr %4, i32 0, i32 0
  store double %1, ptr %9, align 8
  %10 = getelementptr inbounds { double, double }, ptr %4, i32 0, i32 1
  store double %2, ptr %10, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  %11 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %31, %3
  %13 = load i32, ptr %6, align 4, !tbaa !9
  %14 = call noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumRowsEv(ptr noundef nonnull align 8 dereferenceable(64) %11)
  %15 = icmp ult i32 %13, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %12
  store i32 2, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %34

17:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %18

18:                                               ; preds = %27, %17
  %19 = load i32, ptr %8, align 4, !tbaa !9
  %20 = call noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumColsEv(ptr noundef nonnull align 8 dereferenceable(64) %11)
  %21 = icmp ult i32 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  store i32 5, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %30

23:                                               ; preds = %18
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = load i32, ptr %8, align 4, !tbaa !9
  %26 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZN4TBTK6MatrixISt7complexIdELj2ELj2EE2atEjj(ptr noundef nonnull align 8 dereferenceable(64) %11, i32 noundef %24, i32 noundef %25)
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %26, ptr align 8 %4, i64 16, i1 false), !tbaa.struct !11
  br label %27

27:                                               ; preds = %23
  %28 = load i32, ptr %8, align 4, !tbaa !9
  %29 = add i32 %28, 1
  store i32 %29, ptr %8, align 4, !tbaa !9
  br label %18, !llvm.loop !13

30:                                               ; preds = %22
  br label %31

31:                                               ; preds = %30
  %32 = load i32, ptr %6, align 4, !tbaa !9
  %33 = add i32 %32, 1
  store i32 %33, ptr %6, align 4, !tbaa !9
  br label %12, !llvm.loop !15

34:                                               ; preds = %16
  ret ptr %11
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { nounwind }

!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 = !{i64 0, i64 16, !12}
!12 = !{!7, !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}


; 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: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumRowsEv(ptr noundef nonnull align 8 dereferenceable(64)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumColsEv(ptr noundef nonnull align 8 dereferenceable(64)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZN4TBTK6MatrixISt7complexIdELj2ELj2EE2atEjj(ptr noundef nonnull align 8 dereferenceable(64), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef nonnull align 8 dereferenceable(64) ptr @_ZN4TBTK10SpinMatrixaSESt7complexIdE(ptr noundef nonnull returned align 8 dereferenceable(64) %0, double %1, double %2) local_unnamed_addr #0 align 2 {
  %4 = tail call noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumRowsEv(ptr noundef nonnull align 8 dereferenceable(64) %0)
  %.not = icmp eq i32 %4, 0
  br i1 %.not, label %._crit_edge9, label %.preheader

.preheader:                                       ; preds = %3, %._crit_edge
  %.068 = phi i32 [ %6, %._crit_edge ], [ 0, %3 ]
  %5 = tail call noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumColsEv(ptr noundef nonnull align 8 dereferenceable(64) %0)
  %.not10 = icmp eq i32 %5, 0
  br i1 %.not10, label %._crit_edge, label %.lr.ph

._crit_edge9:                                     ; preds = %._crit_edge, %3
  ret ptr %0

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %6 = add nuw i32 %.068, 1
  %7 = tail call noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumRowsEv(ptr noundef nonnull align 8 dereferenceable(64) %0)
  %8 = icmp ult i32 %6, %7
  br i1 %8, label %.preheader, label %._crit_edge9, !llvm.loop !5

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.07 = phi i32 [ %10, %.lr.ph ], [ 0, %.preheader ]
  %9 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZN4TBTK6MatrixISt7complexIdELj2ELj2EE2atEjj(ptr noundef nonnull align 8 dereferenceable(64) %0, i32 noundef %.068, i32 noundef %.07)
  store double %1, ptr %9, align 8
  %.sroa.2.0..sroa_idx = getelementptr inbounds i8, ptr %9, i64 8
  store double %2, ptr %.sroa.2.0..sroa_idx, align 8, !tbaa !7
  %10 = add nuw i32 %.07, 1
  %11 = tail call noundef i32 @_ZNK4TBTK6MatrixISt7complexIdELj2ELj2EE10getNumColsEv(ptr noundef nonnull align 8 dereferenceable(64) %0)
  %12 = icmp ult i32 %10, %11
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !10
}

attributes #0 = { 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" }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = distinct !{!10, !6}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass