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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @ippsMontSet(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 %51

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 %51

15:                                               ; preds = %11
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct._cpMontgomery, 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, 1297043028
  br i1 %23, label %25, label %24

24:                                               ; preds = %15
  store i32 -13, ptr %4, align 4
  br label %51

25:                                               ; preds = %15
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = icmp slt i32 %26, 1
  br i1 %27, label %28, label %29

28:                                               ; preds = %25
  store i32 -15, ptr %4, align 4
  br label %51

29:                                               ; preds = %25
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = getelementptr inbounds i32, ptr %30, i64 0
  %32 = load i32, ptr %31, align 4, !tbaa !9
  %33 = and i32 %32, 1
  %34 = icmp eq i32 %33, 0
  br i1 %34, label %35, label %36

35:                                               ; preds = %29
  store i32 -1001, ptr %4, align 4
  br label %51

36:                                               ; preds = %29
  %37 = load ptr, ptr %7, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct._cpMontgomery, ptr %37, i32 0, i32 1
  %39 = load i32, ptr %38, align 4, !tbaa !13
  %40 = load i32, ptr %6, align 4, !tbaa !9
  %41 = add nsw i32 %40, 2
  %42 = sub nsw i32 %41, 1
  %43 = sdiv i32 %42, 2
  %44 = icmp ult i32 %39, %43
  br i1 %44, label %45, label %46

45:                                               ; preds = %36
  store i32 -11, ptr %4, align 4
  br label %51

46:                                               ; preds = %36
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = load i32, ptr %6, align 4, !tbaa !9
  %49 = load ptr, ptr %7, align 8, !tbaa !5
  %50 = call i32 @cpMontSet(ptr noundef %47, i32 noundef %48, ptr noundef %49)
  store i32 %50, ptr %4, align 4
  br label %51

51:                                               ; preds = %46, %45, %35, %28, %24, %14, %10
  %52 = load i32, ptr %4, align 4
  ret i32 %52
}

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

declare i32 @cpMontSet(ptr noundef, i32 noundef, ptr 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 = !{!"_cpMontgomery", !10, i64 0, !10, i64 4, !6, i64 8}
!13 = !{!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 i32 @ippsMontSet(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 %26, 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, 1297043028
  br i1 %11, label %12, label %26

12:                                               ; preds = %6
  %13 = icmp slt i32 %1, 1
  br i1 %13, label %26, label %14

14:                                               ; preds = %12
  %15 = load i32, ptr %0, align 4, !tbaa !11
  %16 = and i32 %15, 1
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %26, label %18

18:                                               ; preds = %14
  %19 = getelementptr inbounds i8, ptr %2, i64 4
  %20 = load i32, ptr %19, align 4, !tbaa !12
  %21 = add nuw nsw i32 %1, 1
  %22 = lshr i32 %21, 1
  %23 = icmp ult i32 %20, %22
  br i1 %23, label %26, label %24

24:                                               ; preds = %18
  %25 = tail call i32 @cpMontSet(ptr noundef nonnull %0, i32 noundef %1, ptr noundef nonnull %2) #3
  br label %26

26:                                               ; preds = %18, %14, %12, %6, %3, %24
  %.0 = phi i32 [ %25, %24 ], [ -8, %3 ], [ -13, %6 ], [ -15, %12 ], [ -1001, %14 ], [ -11, %18 ]
  ret i32 %.0
}

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

declare i32 @cpMontSet(ptr noundef, i32 noundef, ptr 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 = !{!"_cpMontgomery", !7, i64 0, !7, i64 4, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!6, !7, i64 4}


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