; LLVM IR from intel/cryptography-primitives :: sources/ippcp (pcpbnsetoctstr)

; 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._cpBigNum = type { i32, i32, i32, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
define dso_local i32 @ippsSetOctString_BN(ptr noundef %0, i32 noundef %1, ptr noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = icmp eq ptr null, %8
  br i1 %9, label %10, label %11

10:                                               ; preds = %3
  store i32 -8, ptr %4, align 4
  br label %76

11:                                               ; preds = %3
  %12 = load ptr, ptr %7, align 8, !tbaa !5
  %13 = icmp eq ptr null, %12
  br i1 %13, label %14, label %15

14:                                               ; preds = %11
  store i32 -8, ptr %4, align 4
  br label %76

15:                                               ; preds = %11
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct._cpBigNum, ptr %16, i32 0, i32 0
  %18 = load i32, ptr %17, align 8, !tbaa !11
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = call i64 @IPP_UINT_PTR(ptr noundef %19)
  %21 = trunc i64 %20 to i32
  %22 = xor i32 %18, %21
  %23 = icmp eq i32 %22, 1112098638
  br i1 %23, label %25, label %24

24:                                               ; preds = %15
  store i32 -13, ptr %4, align 4
  br label %76

25:                                               ; preds = %15
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = icmp sgt i32 0, %26
  br i1 %27, label %28, label %29

28:                                               ; preds = %25
  store i32 -15, ptr %4, align 4
  br label %76

29:                                               ; preds = %25
  br label %30

30:                                               ; preds = %41, %29
  %31 = load i32, ptr %6, align 4, !tbaa !9
  %32 = icmp ne i32 %31, 0
  br i1 %32, label %33, label %39

33:                                               ; preds = %30
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds i8, ptr %34, i64 0
  %36 = load i8, ptr %35, align 1, !tbaa !13
  %37 = zext i8 %36 to i32
  %38 = icmp eq i32 0, %37
  br label %39

39:                                               ; preds = %33, %30
  %40 = phi i1 [ false, %30 ], [ %38, %33 ]
  br i1 %40, label %41, label %46

41:                                               ; preds = %39
  %42 = load i32, ptr %6, align 4, !tbaa !9
  %43 = add nsw i32 %42, -1
  store i32 %43, ptr %6, align 4, !tbaa !9
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = getelementptr inbounds i8, ptr %44, i32 1
  store ptr %45, ptr %5, align 8, !tbaa !5
  br label %30, !llvm.loop !14

46:                                               ; preds = %39
  %47 = load ptr, ptr %7, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct._cpBigNum, ptr %47, i32 0, i32 3
  %49 = load i32, ptr %48, align 4, !tbaa !16
  %50 = mul nsw i32 8, %49
  %51 = load i32, ptr %6, align 4, !tbaa !9
  %52 = icmp slt i32 %50, %51
  br i1 %52, label %53, label %54

53:                                               ; preds = %46
  store i32 -6, ptr %4, align 4
  br label %76

54:                                               ; preds = %46
  %55 = load i32, ptr %6, align 4, !tbaa !9
  %56 = icmp ne i32 %55, 0
  br i1 %56, label %57, label %66

57:                                               ; preds = %54
  %58 = load ptr, ptr %7, align 8, !tbaa !5
  %59 = getelementptr inbounds %struct._cpBigNum, ptr %58, i32 0, i32 4
  %60 = load ptr, ptr %59, align 8, !tbaa !17
  %61 = load ptr, ptr %5, align 8, !tbaa !5
  %62 = load i32, ptr %6, align 4, !tbaa !9
  %63 = call i32 @cpFromOctStr_BNU(ptr noundef %60, ptr noundef %61, i32 noundef %62)
  %64 = load ptr, ptr %7, align 8, !tbaa !5
  %65 = getelementptr inbounds %struct._cpBigNum, ptr %64, i32 0, i32 2
  store i32 %63, ptr %65, align 8, !tbaa !18
  br label %73

66:                                               ; preds = %54
  %67 = load ptr, ptr %7, align 8, !tbaa !5
  %68 = getelementptr inbounds %struct._cpBigNum, ptr %67, i32 0, i32 4
  %69 = load ptr, ptr %68, align 8, !tbaa !17
  %70 = getelementptr inbounds i64, ptr %69, i64 0
  store i64 0, ptr %70, align 8, !tbaa !19
  %71 = load ptr, ptr %7, align 8, !tbaa !5
  %72 = getelementptr inbounds %struct._cpBigNum, ptr %71, i32 0, i32 2
  store i32 1, ptr %72, align 8, !tbaa !18
  br label %73

73:                                               ; preds = %66, %57
  %74 = load ptr, ptr %7, align 8, !tbaa !5
  %75 = getelementptr inbounds %struct._cpBigNum, ptr %74, i32 0, i32 1
  store i32 1, ptr %75, align 4, !tbaa !21
  store i32 0, ptr %4, align 4
  br label %76

76:                                               ; preds = %73, %53, %28, %24, %14, %10
  %77 = load i32, ptr %4, align 4
  ret i32 %77
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @IPP_UINT_PTR(ptr noundef) #1

declare i32 @cpFromOctStr_BNU(ptr noundef, ptr noundef, i32 noundef) #2

attributes #0 = { 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 = { inlinehint 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 = { "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 = !{!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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_cpBigNum", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !6, i64 16, !6, i64 24}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!12, !10, i64 12}
!17 = !{!12, !6, i64 16}
!18 = !{!12, !10, i64 8}
!19 = !{!20, !20, i64 0}
!20 = !{!"long long", !7, i64 0}
!21 = !{!12, !10, i64 4}


; 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: nounwind uwtable
define dso_local range(i32 -15, 1) i32 @ippsSetOctString_BN(ptr noundef %0, i32 noundef %1, ptr noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq ptr %0, null
  %5 = icmp eq ptr %2, null
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %36, label %6

6:                                                ; preds = %3
  %7 = load i32, ptr %2, align 8, !tbaa !5
  %8 = tail call i64 @IPP_UINT_PTR(ptr noundef nonnull %2)
  %9 = trunc i64 %8 to i32
  %10 = xor i32 %7, %9
  %11 = icmp eq i32 %10, 1112098638
  br i1 %11, label %12, label %36

12:                                               ; preds = %6
  %13 = icmp slt i32 %1, 0
  br i1 %13, label %36, label %.preheader

.preheader:                                       ; preds = %12
  %.not26 = icmp eq i32 %1, 0
  br i1 %.not26, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %16
  %.01928 = phi i32 [ %17, %16 ], [ %1, %.preheader ]
  %.02027 = phi ptr [ %18, %16 ], [ %0, %.preheader ]
  %14 = load i8, ptr %.02027, align 1, !tbaa !11
  %15 = icmp eq i8 %14, 0
  br i1 %15, label %16, label %.critedge.thread

16:                                               ; preds = %.lr.ph
  %17 = add nsw i32 %.01928, -1
  %18 = getelementptr inbounds i8, ptr %.02027, i64 1
  %.not = icmp eq i32 %17, 0
  br i1 %.not, label %.critedge, label %.lr.ph, !llvm.loop !12

.critedge:                                        ; preds = %16, %.preheader
  %19 = getelementptr inbounds i8, ptr %2, i64 12
  %20 = load i32, ptr %19, align 4, !tbaa !14
  %21 = icmp slt i32 %20, 0
  br i1 %21, label %36, label %30

.critedge.thread:                                 ; preds = %.lr.ph
  %22 = getelementptr inbounds i8, ptr %2, i64 12
  %23 = load i32, ptr %22, align 4, !tbaa !14
  %24 = shl nsw i32 %23, 3
  %25 = icmp slt i32 %24, %.01928
  br i1 %25, label %36, label %26

26:                                               ; preds = %.critedge.thread
  %27 = getelementptr inbounds i8, ptr %2, i64 16
  %28 = load ptr, ptr %27, align 8, !tbaa !15
  %29 = tail call i32 @cpFromOctStr_BNU(ptr noundef %28, ptr noundef nonnull %.02027, i32 noundef %.01928) #3
  br label %33

30:                                               ; preds = %.critedge
  %31 = getelementptr inbounds i8, ptr %2, i64 16
  %32 = load ptr, ptr %31, align 8, !tbaa !15
  store i64 0, ptr %32, align 8, !tbaa !16
  br label %33

33:                                               ; preds = %30, %26
  %.sink = phi i32 [ 1, %30 ], [ %29, %26 ]
  %34 = getelementptr inbounds i8, ptr %2, i64 8
  store i32 %.sink, ptr %34, align 8, !tbaa !18
  %35 = getelementptr inbounds i8, ptr %2, i64 4
  store i32 1, ptr %35, align 4, !tbaa !19
  br label %36

36:                                               ; preds = %.critedge.thread, %.critedge, %12, %6, %3, %33
  %.0 = phi i32 [ 0, %33 ], [ -8, %3 ], [ -13, %6 ], [ -15, %12 ], [ -6, %.critedge ], [ -6, %.critedge.thread ]
  ret i32 %.0
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @IPP_UINT_PTR(ptr noundef) local_unnamed_addr #1

declare i32 @cpFromOctStr_BNU(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

attributes #0 = { 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 = { inlinehint 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 = { "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, !7, i64 0}
!6 = !{!"_cpBigNum", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !10, i64 16, !10, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!8, !8, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{!6, !7, i64 12}
!15 = !{!6, !10, i64 16}
!16 = !{!17, !17, i64 0}
!17 = !{!"long long", !8, i64 0}
!18 = !{!6, !7, i64 8}
!19 = !{!6, !7, i64 4}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass