; LLVM IR from harharkh/sb_desc :: src (matrix)

; 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"

%struct.sb_mat = type { i64, i64, i64, ptr }
%struct.sb_vec = type { i64, ptr, i8 }

@sb_error_log = external global ptr, align 8
@stderr = external global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.26 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.27 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.28 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.29 = external hidden unnamed_addr constant [74 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

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, 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: noreturn nounwind
declare void @abort() #2

declare void @cblas_dcopy(i32 noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local ptr @sb_mat_get_diag(ptr noalias noundef %0, ptr noalias noundef %1) #4 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  br label %6

6:                                                ; preds = %2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = icmp ne ptr %7, null
  br i1 %8, label %28, label %9

9:                                                ; preds = %6
  %10 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %14

12:                                               ; preds = %9
  %13 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %16

14:                                               ; preds = %9
  %15 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %14, %12
  %17 = phi ptr [ %13, %12 ], [ %15, %14 ]
  %18 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef @.str.26) #5
  %19 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %20 = icmp ne ptr %19, null
  br i1 %20, label %21, label %23

21:                                               ; preds = %16
  %22 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %25

23:                                               ; preds = %16
  %24 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %25

25:                                               ; preds = %23, %21
  %26 = phi ptr [ %22, %21 ], [ %24, %23 ]
  %27 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %26, ptr noundef @.str.1) #5
  call void @abort() #6
  unreachable

28:                                               ; preds = %6
  br label %29

29:                                               ; preds = %28
  br label %30

30:                                               ; preds = %29
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = icmp ne ptr %31, null
  br i1 %32, label %52, label %33

33:                                               ; preds = %30
  %34 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %35 = icmp ne ptr %34, null
  br i1 %35, label %36, label %38

36:                                               ; preds = %33
  %37 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %40

38:                                               ; preds = %33
  %39 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %40

40:                                               ; preds = %38, %36
  %41 = phi ptr [ %37, %36 ], [ %39, %38 ]
  %42 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %41, ptr noundef @.str.27) #5
  %43 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %44 = icmp ne ptr %43, null
  br i1 %44, label %45, label %47

45:                                               ; preds = %40
  %46 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %49

47:                                               ; preds = %40
  %48 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %49

49:                                               ; preds = %47, %45
  %50 = phi ptr [ %46, %45 ], [ %48, %47 ]
  %51 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %50, ptr noundef @.str.1) #5
  call void @abort() #6
  unreachable

52:                                               ; preds = %30
  br label %53

53:                                               ; preds = %52
  br label %54

54:                                               ; preds = %53
  %55 = load ptr, ptr %4, align 8, !tbaa !5
  %56 = getelementptr inbounds %struct.sb_mat, ptr %55, i32 0, i32 0
  %57 = load i64, ptr %56, align 8, !tbaa !9
  %58 = load ptr, ptr %4, align 8, !tbaa !5
  %59 = getelementptr inbounds %struct.sb_mat, ptr %58, i32 0, i32 1
  %60 = load i64, ptr %59, align 8, !tbaa !12
  %61 = icmp ne i64 %57, %60
  br i1 %61, label %62, label %81

62:                                               ; preds = %54
  %63 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %64 = icmp ne ptr %63, null
  br i1 %64, label %65, label %67

65:                                               ; preds = %62
  %66 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %69

67:                                               ; preds = %62
  %68 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %69

69:                                               ; preds = %67, %65
  %70 = phi ptr [ %66, %65 ], [ %68, %67 ]
  %71 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %70, ptr noundef @.str.28) #5
  %72 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %73 = icmp ne ptr %72, null
  br i1 %73, label %74, label %76

74:                                               ; preds = %69
  %75 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %78

76:                                               ; preds = %69
  %77 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %78

78:                                               ; preds = %76, %74
  %79 = phi ptr [ %75, %74 ], [ %77, %76 ]
  %80 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %79, ptr noundef @.str.1) #5
  call void @abort() #6
  unreachable

81:                                               ; preds = %54
  br label %82

82:                                               ; preds = %81
  br label %83

83:                                               ; preds = %82
  %84 = load ptr, ptr %3, align 8, !tbaa !5
  %85 = getelementptr inbounds %struct.sb_vec, ptr %84, i32 0, i32 0
  %86 = load i64, ptr %85, align 8, !tbaa !13
  %87 = load ptr, ptr %4, align 8, !tbaa !5
  %88 = getelementptr inbounds %struct.sb_mat, ptr %87, i32 0, i32 0
  %89 = load i64, ptr %88, align 8, !tbaa !9
  %90 = icmp ne i64 %86, %89
  br i1 %90, label %91, label %110

91:                                               ; preds = %83
  %92 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %93 = icmp ne ptr %92, null
  br i1 %93, label %94, label %96

94:                                               ; preds = %91
  %95 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %98

96:                                               ; preds = %91
  %97 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %98

98:                                               ; preds = %96, %94
  %99 = phi ptr [ %95, %94 ], [ %97, %96 ]
  %100 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %99, ptr noundef @.str.29) #5
  %101 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %102 = icmp ne ptr %101, null
  br i1 %102, label %103, label %105

103:                                              ; preds = %98
  %104 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %107

105:                                              ; preds = %98
  %106 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %107

107:                                              ; preds = %105, %103
  %108 = phi ptr [ %104, %103 ], [ %106, %105 ]
  %109 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %108, ptr noundef @.str.1) #5
  call void @abort() #6
  unreachable

110:                                              ; preds = %83
  br label %111

111:                                              ; preds = %110
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %112 = load ptr, ptr %4, align 8, !tbaa !5
  %113 = getelementptr inbounds %struct.sb_mat, ptr %112, i32 0, i32 0
  %114 = load i64, ptr %113, align 8, !tbaa !9
  store i64 %114, ptr %5, align 8, !tbaa !15
  %115 = load i64, ptr %5, align 8, !tbaa !15
  %116 = trunc i64 %115 to i32
  %117 = load ptr, ptr %4, align 8, !tbaa !5
  %118 = getelementptr inbounds %struct.sb_mat, ptr %117, i32 0, i32 3
  %119 = load ptr, ptr %118, align 8, !tbaa !16
  %120 = load i64, ptr %5, align 8, !tbaa !15
  %121 = add i64 %120, 1
  %122 = trunc i64 %121 to i32
  %123 = load ptr, ptr %3, align 8, !tbaa !5
  %124 = getelementptr inbounds %struct.sb_vec, ptr %123, i32 0, i32 1
  %125 = load ptr, ptr %124, align 8, !tbaa !17
  call void @cblas_dcopy(i32 noundef %116, ptr noundef %119, i32 noundef %122, ptr noundef %125, i32 noundef 1)
  %126 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  ret ptr %126
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { noreturn 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 #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 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 #5 = { nounwind }
attributes #6 = { noreturn 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/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"", !11, i64 0, !11, i64 8, !11, i64 16, !6, i64 24}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!14, !11, i64 0}
!14 = !{!"", !11, i64 0, !6, i64 8, !7, i64 16}
!15 = !{!11, !11, i64 0}
!16 = !{!10, !6, i64 24}
!17 = !{!14, !6, i64 8}


; 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"

@sb_error_log = external local_unnamed_addr global ptr, align 8
@stderr = external local_unnamed_addr global ptr, align 8
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.26 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.27 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.28 = external hidden unnamed_addr constant [34 x i8], align 1
@.str.29 = external hidden unnamed_addr constant [74 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: noreturn nounwind
declare void @abort() local_unnamed_addr #1

declare void @cblas_dcopy(i32 noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @sb_mat_get_diag(ptr noalias noundef readonly returned %0, ptr noalias noundef readonly %1) local_unnamed_addr #3 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %3, label %12

3:                                                ; preds = %2
  %4 = load ptr, ptr @sb_error_log, align 8
  %.not13 = icmp eq ptr %4, null
  %5 = load ptr, ptr @stderr, align 8
  %6 = select i1 %.not13, ptr %5, ptr %4
  %7 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %6, ptr noundef nonnull @.str.26) #4
  %8 = load ptr, ptr @sb_error_log, align 8
  %.not14 = icmp eq ptr %8, null
  %9 = load ptr, ptr @stderr, align 8
  %10 = select i1 %.not14, ptr %9, ptr %8
  %11 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %10, ptr noundef nonnull @.str.1) #4
  tail call void @abort() #5
  unreachable

12:                                               ; preds = %2
  %.not15 = icmp eq ptr %1, null
  br i1 %.not15, label %13, label %22

13:                                               ; preds = %12
  %14 = load ptr, ptr @sb_error_log, align 8
  %.not16 = icmp eq ptr %14, null
  %15 = load ptr, ptr @stderr, align 8
  %16 = select i1 %.not16, ptr %15, ptr %14
  %17 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef nonnull @.str.27) #4
  %18 = load ptr, ptr @sb_error_log, align 8
  %.not17 = icmp eq ptr %18, null
  %19 = load ptr, ptr @stderr, align 8
  %20 = select i1 %.not17, ptr %19, ptr %18
  %21 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef nonnull @.str.1) #4
  tail call void @abort() #5
  unreachable

22:                                               ; preds = %12
  %23 = load i64, ptr %1, align 8, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %1, i64 8
  %25 = load i64, ptr %24, align 8, !tbaa !11
  %.not18 = icmp eq i64 %23, %25
  br i1 %.not18, label %35, label %26

26:                                               ; preds = %22
  %27 = load ptr, ptr @sb_error_log, align 8
  %.not22 = icmp eq ptr %27, null
  %28 = load ptr, ptr @stderr, align 8
  %29 = select i1 %.not22, ptr %28, ptr %27
  %30 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %29, ptr noundef nonnull @.str.28) #4
  %31 = load ptr, ptr @sb_error_log, align 8
  %.not23 = icmp eq ptr %31, null
  %32 = load ptr, ptr @stderr, align 8
  %33 = select i1 %.not23, ptr %32, ptr %31
  %34 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %33, ptr noundef nonnull @.str.1) #4
  tail call void @abort() #5
  unreachable

35:                                               ; preds = %22
  %36 = load i64, ptr %0, align 8, !tbaa !12
  %.not19 = icmp eq i64 %36, %23
  br i1 %.not19, label %46, label %37

37:                                               ; preds = %35
  %38 = load ptr, ptr @sb_error_log, align 8
  %.not20 = icmp eq ptr %38, null
  %39 = load ptr, ptr @stderr, align 8
  %40 = select i1 %.not20, ptr %39, ptr %38
  %41 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %40, ptr noundef nonnull @.str.29) #4
  %42 = load ptr, ptr @sb_error_log, align 8
  %.not21 = icmp eq ptr %42, null
  %43 = load ptr, ptr @stderr, align 8
  %44 = select i1 %.not21, ptr %43, ptr %42
  %45 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %44, ptr noundef nonnull @.str.1) #4
  tail call void @abort() #5
  unreachable

46:                                               ; preds = %35
  %47 = trunc i64 %23 to i32
  %48 = getelementptr inbounds i8, ptr %1, i64 24
  %49 = load ptr, ptr %48, align 8, !tbaa !14
  %50 = add i32 %47, 1
  %51 = getelementptr inbounds i8, ptr %0, i64 8
  %52 = load ptr, ptr %51, align 8, !tbaa !15
  tail call void @cblas_dcopy(i32 noundef %47, ptr noundef %49, i32 noundef %50, ptr noundef %52, i32 noundef 1) #4
  ret ptr %0
}

attributes #0 = { 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 #1 = { noreturn 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 = { "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 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 }
attributes #5 = { noreturn 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, !7, i64 0}
!6 = !{!"", !7, i64 0, !7, i64 8, !7, i64 16, !10, i64 24}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 8}
!12 = !{!13, !7, i64 0}
!13 = !{!"", !7, i64 0, !10, i64 8, !8, i64 16}
!14 = !{!6, !10, i64 24}
!15 = !{!13, !10, i64 8}


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