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

; 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_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.20 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.21 = external hidden unnamed_addr constant [38 x i8], align 1

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

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
define dso_local ptr @sb_vec_set_basis(ptr noundef %0, i64 noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  br label %5

5:                                                ; preds = %2
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = icmp ne ptr %6, null
  br i1 %7, label %27, label %8

8:                                                ; preds = %5
  %9 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %13

11:                                               ; preds = %8
  %12 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %15

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

15:                                               ; preds = %13, %11
  %16 = phi ptr [ %12, %11 ], [ %14, %13 ]
  %17 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef @.str.20) #4
  %18 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %19 = icmp ne ptr %18, null
  br i1 %19, label %20, label %22

20:                                               ; preds = %15
  %21 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %24

22:                                               ; preds = %15
  %23 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %24

24:                                               ; preds = %22, %20
  %25 = phi ptr [ %21, %20 ], [ %23, %22 ]
  %26 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %25, ptr noundef @.str.1) #4
  call void @abort() #5
  unreachable

27:                                               ; preds = %5
  br label %28

28:                                               ; preds = %27
  br label %29

29:                                               ; preds = %28
  %30 = load i64, ptr %4, align 8, !tbaa !9
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.sb_vec, ptr %31, i32 0, i32 0
  %33 = load i64, ptr %32, align 8, !tbaa !11
  %34 = icmp uge i64 %30, %33
  br i1 %34, label %35, label %54

35:                                               ; preds = %29
  %36 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %37 = icmp ne ptr %36, null
  br i1 %37, label %38, label %40

38:                                               ; preds = %35
  %39 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %42

40:                                               ; preds = %35
  %41 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %42

42:                                               ; preds = %40, %38
  %43 = phi ptr [ %39, %38 ], [ %41, %40 ]
  %44 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %43, ptr noundef @.str.21) #4
  %45 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  %46 = icmp ne ptr %45, null
  br i1 %46, label %47, label %49

47:                                               ; preds = %42
  %48 = load ptr, ptr @sb_error_log, align 8, !tbaa !5
  br label %51

49:                                               ; preds = %42
  %50 = load ptr, ptr @stderr, align 8, !tbaa !5
  br label %51

51:                                               ; preds = %49, %47
  %52 = phi ptr [ %48, %47 ], [ %50, %49 ]
  %53 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %52, ptr noundef @.str.1) #4
  call void @abort() #5
  unreachable

54:                                               ; preds = %29
  br label %55

55:                                               ; preds = %54
  %56 = load ptr, ptr %3, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.sb_vec, ptr %56, i32 0, i32 1
  %58 = load ptr, ptr %57, align 8, !tbaa !13
  %59 = load ptr, ptr %3, align 8, !tbaa !5
  %60 = getelementptr inbounds %struct.sb_vec, ptr %59, i32 0, i32 0
  %61 = load i64, ptr %60, align 8, !tbaa !11
  %62 = mul i64 %61, 8
  call void @llvm.memset.p0.i64(ptr align 8 %58, i8 0, i64 %62, i1 false)
  %63 = load i64, ptr %4, align 8, !tbaa !9
  %64 = getelementptr inbounds double, ptr %58, i64 %63
  store double 1.000000e+00, ptr %64, align 8, !tbaa !14
  %65 = load ptr, ptr %3, align 8, !tbaa !5
  ret ptr %65
}

attributes #0 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"", !10, i64 0, !6, i64 8, !7, i64 16}
!13 = !{!12, !6, i64 8}
!14 = !{!15, !15, i64 0}
!15 = !{!"double", !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"

@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.20 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.21 = external hidden unnamed_addr constant [38 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

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @sb_vec_set_basis(ptr noundef readonly returned %0, i64 noundef %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
  %.not8 = icmp eq ptr %4, null
  %5 = load ptr, ptr @stderr, align 8
  %6 = select i1 %.not8, ptr %5, ptr %4
  %7 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %6, ptr noundef nonnull @.str.20) #4
  %8 = load ptr, ptr @sb_error_log, align 8
  %.not9 = icmp eq ptr %8, null
  %9 = load ptr, ptr @stderr, align 8
  %10 = select i1 %.not9, 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
  %13 = load i64, ptr %0, align 8, !tbaa !5
  %.not10 = icmp ugt i64 %13, %1
  br i1 %.not10, label %23, label %14

14:                                               ; preds = %12
  %15 = load ptr, ptr @sb_error_log, align 8
  %.not11 = icmp eq ptr %15, null
  %16 = load ptr, ptr @stderr, align 8
  %17 = select i1 %.not11, ptr %16, ptr %15
  %18 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %17, ptr noundef nonnull @.str.21) #4
  %19 = load ptr, ptr @sb_error_log, align 8
  %.not12 = icmp eq ptr %19, null
  %20 = load ptr, ptr @stderr, align 8
  %21 = select i1 %.not12, ptr %20, ptr %19
  %22 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %21, ptr noundef nonnull @.str.1) #4
  tail call void @abort() #5
  unreachable

23:                                               ; preds = %12
  %24 = getelementptr inbounds i8, ptr %0, i64 8
  %25 = load ptr, ptr %24, align 8, !tbaa !11
  %26 = shl i64 %13, 3
  tail call void @llvm.memset.p0.i64(ptr align 8 %25, i8 0, i64 %26, i1 false)
  %27 = getelementptr inbounds double, ptr %25, i64 %1
  store double 1.000000e+00, ptr %27, align 8, !tbaa !12
  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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
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, !10, i64 8, !8, i64 16}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"double", !8, i64 0}


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