; LLVM IR from cvxpy/cvxpy :: cvxpy/cvxcore/src/LinOpOperations.ll (Z10sparse_eyei)

; 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.Eigen::SparseMatrix" = type { %"class.Eigen::SparseCompressedBase", i64, i64, ptr, ptr, %"class.Eigen::internal::CompressedStorage" }
%"class.Eigen::SparseCompressedBase" = type { %"class.Eigen::SparseMatrixBase" }
%"class.Eigen::SparseMatrixBase" = type { i8 }
%"class.Eigen::internal::CompressedStorage" = type { ptr, ptr, i64, i64 }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5Eigen12SparseMatrixIdLi0EiED2Ev(ptr noundef nonnull align 8 dereferenceable(72)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10sparse_eyei(ptr dead_on_unwind noalias writable sret(%"class.Eigen::SparseMatrix") align 8 %0, i32 noundef %1) #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store i32 %1, ptr %4, align 4, !tbaa !5
  store i1 false, ptr %5, align 1
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  call void @_ZN5Eigen12SparseMatrixIdLi0EiEC2Ell(ptr noundef nonnull align 8 dereferenceable(72) %0, i64 noundef %9, i64 noundef %11)
  invoke void @_ZN5Eigen12SparseMatrixIdLi0EiE11setIdentityEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
          to label %12 unwind label %14

12:                                               ; preds = %2
  store i1 true, ptr %5, align 1
  %13 = load i1, ptr %5, align 1
  br i1 %13, label %19, label %18

14:                                               ; preds = %2
  %15 = landingpad { ptr, i32 }
          cleanup
  %16 = extractvalue { ptr, i32 } %15, 0
  store ptr %16, ptr %6, align 8
  %17 = extractvalue { ptr, i32 } %15, 1
  store i32 %17, ptr %7, align 4
  call void @_ZN5Eigen12SparseMatrixIdLi0EiED2Ev(ptr noundef nonnull align 8 dereferenceable(72) %0) #3
  br label %20

18:                                               ; preds = %12
  call void @_ZN5Eigen12SparseMatrixIdLi0EiED2Ev(ptr noundef nonnull align 8 dereferenceable(72) %0) #3
  br label %19

19:                                               ; preds = %18, %12
  ret void

20:                                               ; preds = %14
  %21 = load ptr, ptr %6, align 8
  %22 = load i32, ptr %7, align 4
  %23 = insertvalue { ptr, i32 } poison, ptr %21, 0
  %24 = insertvalue { ptr, i32 } %23, i32 %22, 1
  resume { ptr, i32 } %24
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN5Eigen12SparseMatrixIdLi0EiEC2Ell(ptr noundef nonnull align 8 dereferenceable(72), i64 noundef, i64 noundef) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN5Eigen12SparseMatrixIdLi0EiE11setIdentityEv(ptr noundef nonnull align 8 dereferenceable(72)) #2 align 2

attributes #0 = { inlinehint 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 #1 = { 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 #2 = { inlinehint 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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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"

%"class.Eigen::SparseMatrix" = type { %"class.Eigen::SparseCompressedBase", i64, i64, ptr, ptr, %"class.Eigen::internal::CompressedStorage" }
%"class.Eigen::SparseCompressedBase" = type { %"class.Eigen::SparseMatrixBase" }
%"class.Eigen::SparseMatrixBase" = type { i8 }
%"class.Eigen::internal::CompressedStorage" = type { ptr, ptr, i64, i64 }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5Eigen12SparseMatrixIdLi0EiED2Ev(ptr noundef nonnull align 8 dereferenceable(72)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10sparse_eyei(ptr dead_on_unwind noalias nonnull writable sret(%"class.Eigen::SparseMatrix") align 8 %0, i32 noundef %1) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %3 = sext i32 %1 to i64
  tail call void @_ZN5Eigen12SparseMatrixIdLi0EiEC2Ell(ptr noundef nonnull align 8 dereferenceable(72) %0, i64 noundef %3, i64 noundef %3)
  invoke void @_ZN5Eigen12SparseMatrixIdLi0EiE11setIdentityEv(ptr noundef nonnull align 8 dereferenceable(72) %0)
          to label %6 unwind label %4

4:                                                ; preds = %2
  %5 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZN5Eigen12SparseMatrixIdLi0EiED2Ev(ptr noundef nonnull align 8 dereferenceable(72) %0) #3
  resume { ptr, i32 } %5

6:                                                ; preds = %2
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN5Eigen12SparseMatrixIdLi0EiEC2Ell(ptr noundef nonnull align 8 dereferenceable(72), i64 noundef, i64 noundef) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN5Eigen12SparseMatrixIdLi0EiE11setIdentityEv(ptr noundef nonnull align 8 dereferenceable(72)) local_unnamed_addr #2 align 2

attributes #0 = { inlinehint 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 #1 = { 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 #2 = { inlinehint 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 = { 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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass