; LLVM IR from o0o0o0o0o0o0o/image-processing-from-scratch :: ImageMatting/Eigen/demos/mix_eigen_and_c (example)

; 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"

@.str.3 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [19 x i8], align 1

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

declare i32 @printf(ptr noundef, ...) #1

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

; Function Attrs: nounwind uwtable
declare dso_local void @print_array(ptr noundef, i32 noundef) #2

declare ptr @Map_MatrixXd_new(ptr noundef, i32 noundef, i32 noundef) #1

declare void @Map_MatrixXd_delete(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @demo_Map_MatrixXd() #2 {
  %1 = alloca ptr, align 8
  %2 = alloca [5 x double], align 16
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #3
  call void @llvm.lifetime.start.p0(i64 40, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %4 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %5

5:                                                ; preds = %14, %0
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = icmp slt i32 %6, 5
  br i1 %7, label %8, label %17

8:                                                ; preds = %5
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = sitofp i32 %9 to double
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds [5 x double], ptr %2, i64 0, i64 %12
  store double %10, ptr %13, align 8, !tbaa !9
  br label %14

14:                                               ; preds = %8
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = add nsw i32 %15, 1
  store i32 %16, ptr %3, align 4, !tbaa !5
  br label %5, !llvm.loop !11

17:                                               ; preds = %5
  %18 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  %19 = getelementptr inbounds [5 x double], ptr %2, i64 0, i64 0
  call void @print_array(ptr noundef %19, i32 noundef 5)
  %20 = getelementptr inbounds [5 x double], ptr %2, i64 0, i64 0
  %21 = call ptr @Map_MatrixXd_new(ptr noundef %20, i32 noundef 5, i32 noundef 1)
  store ptr %21, ptr %1, align 8, !tbaa !13
  %22 = load ptr, ptr %1, align 8, !tbaa !13
  %23 = load ptr, ptr %1, align 8, !tbaa !13
  %24 = load ptr, ptr %1, align 8, !tbaa !13
  call void @Map_MatrixXd_add(ptr noundef %22, ptr noundef %23, ptr noundef %24)
  %25 = load ptr, ptr %1, align 8, !tbaa !13
  call void @Map_MatrixXd_delete(ptr noundef %25)
  %26 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  %27 = getelementptr inbounds [5 x double], ptr %2, i64 0, i64 0
  call void @print_array(ptr noundef %27, i32 noundef 5)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 40, ptr %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #3
  ret void
}

declare void @Map_MatrixXd_add(ptr noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"any pointer", !7, 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"

@.str.3 = external hidden unnamed_addr constant [27 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [19 x i8], align 1

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

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

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

; Function Attrs: nounwind uwtable
declare dso_local void @print_array(ptr noundef, i32 noundef) local_unnamed_addr #2

declare ptr @Map_MatrixXd_new(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

declare void @Map_MatrixXd_delete(ptr noundef) local_unnamed_addr #3

; Function Attrs: nounwind uwtable
define dso_local void @demo_Map_MatrixXd() local_unnamed_addr #2 {
  %1 = alloca [5 x double], align 16
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %1) #4
  %2 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  store <2 x double> <double 0.000000e+00, double 1.000000e+00>, ptr %1, align 16, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %1, i64 16
  store <2 x double> <double 2.000000e+00, double 3.000000e+00>, ptr %3, align 16, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %1, i64 32
  store double 4.000000e+00, ptr %4, align 16, !tbaa !5
  %5 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  call void @print_array(ptr noundef nonnull %1, i32 noundef 5)
  %6 = call ptr @Map_MatrixXd_new(ptr noundef nonnull %1, i32 noundef 5, i32 noundef 1) #4
  call void @Map_MatrixXd_add(ptr noundef %6, ptr noundef %6, ptr noundef %6) #4
  call void @Map_MatrixXd_delete(ptr noundef %6) #4
  %7 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  call void @print_array(ptr noundef nonnull %1, i32 noundef 5)
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #4
  ret void
}

declare void @Map_MatrixXd_add(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nofree nounwind "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 = { 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 = { "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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass