; LLVM IR from cryspen/libcrux :: sys/hacl/c/src (Hacl_Bignum)

; 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 = external hidden unnamed_addr constant [70 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [78 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

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

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #3

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

; Function Attrs: nounwind uwtable
declare dso_local i32 @Hacl_Bignum_ModInvLimb_mod_inv_uint32(i32 noundef) #5

; Function Attrs: nounwind uwtable
declare dso_local void @Hacl_Bignum_Montgomery_bn_precomp_r2_mod_n_u32(i32 noundef, i32 noundef, ptr noundef, ptr noundef) #5

; Function Attrs: nounwind uwtable
declare dso_local void @Hacl_Bignum_Exponentiation_bn_mod_exp_consttime_precomp_u32(i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef) #5

; Function Attrs: nounwind uwtable
define dso_local void @Hacl_Bignum_Exponentiation_bn_mod_exp_consttime_u32(i32 noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, i32 noundef %4, ptr noundef %5, ptr noundef %6) #5 {
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca ptr, align 8
  %14 = alloca ptr, align 8
  %15 = alloca ptr, align 8
  %16 = alloca i64, align 8
  %17 = alloca i32, align 4
  store i32 %0, ptr %8, align 4, !tbaa !5
  store i32 %1, ptr %9, align 4, !tbaa !5
  store ptr %2, ptr %10, align 8, !tbaa !9
  store ptr %3, ptr %11, align 8, !tbaa !9
  store i32 %4, ptr %12, align 4, !tbaa !5
  store ptr %5, ptr %13, align 8, !tbaa !9
  store ptr %6, ptr %14, align 8, !tbaa !9
  br label %18

18:                                               ; preds = %7
  %19 = load i32, ptr %8, align 4, !tbaa !5
  %20 = zext i32 %19 to i64
  %21 = icmp ugt i64 %20, 4611686018427387903
  br i1 %21, label %22, label %24

22:                                               ; preds = %18
  %23 = call i32 (ptr, ...) @printf(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1783)
  call void @exit(i32 noundef 253) #6
  unreachable

24:                                               ; preds = %18
  br label %25

25:                                               ; preds = %24
  %26 = load i32, ptr %8, align 4, !tbaa !5
  %27 = zext i32 %26 to i64
  %28 = call ptr @llvm.stacksave.p0()
  store ptr %28, ptr %15, align 8
  %29 = alloca i32, i64 %27, align 16
  store i64 %27, ptr %16, align 8
  %30 = load i32, ptr %8, align 4, !tbaa !5
  %31 = zext i32 %30 to i64
  %32 = mul i64 %31, 4
  call void @llvm.memset.p0.i64(ptr align 16 %29, i8 0, i64 %32, i1 false)
  %33 = load i32, ptr %8, align 4, !tbaa !5
  %34 = load i32, ptr %9, align 4, !tbaa !5
  %35 = load ptr, ptr %10, align 8, !tbaa !9
  call void @Hacl_Bignum_Montgomery_bn_precomp_r2_mod_n_u32(i32 noundef %33, i32 noundef %34, ptr noundef %35, ptr noundef %29)
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #7
  %36 = load ptr, ptr %10, align 8, !tbaa !9
  %37 = getelementptr inbounds i32, ptr %36, i64 0
  %38 = load i32, ptr %37, align 4, !tbaa !5
  %39 = call i32 @Hacl_Bignum_ModInvLimb_mod_inv_uint32(i32 noundef %38)
  store i32 %39, ptr %17, align 4, !tbaa !5
  %40 = load i32, ptr %8, align 4, !tbaa !5
  %41 = load ptr, ptr %10, align 8, !tbaa !9
  %42 = load i32, ptr %17, align 4, !tbaa !5
  %43 = load ptr, ptr %11, align 8, !tbaa !9
  %44 = load i32, ptr %12, align 4, !tbaa !5
  %45 = load ptr, ptr %13, align 8, !tbaa !9
  %46 = load ptr, ptr %14, align 8, !tbaa !9
  call void @Hacl_Bignum_Exponentiation_bn_mod_exp_consttime_precomp_u32(i32 noundef %40, ptr noundef %41, i32 noundef %42, ptr noundef %29, ptr noundef %43, i32 noundef %44, ptr noundef %45, ptr noundef %46)
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #7
  %47 = load ptr, ptr %15, align 8
  call void @llvm.stackrestore.p0(ptr %47)
  ret void
}

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 = { 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 = { nocallback nofree nosync nounwind willreturn }
attributes #4 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #5 = { 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 #6 = { noreturn nounwind }
attributes #7 = { 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 = !{!"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"

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @Hacl_Bignum_ModInvLimb_mod_inv_uint32(i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @Hacl_Bignum_Montgomery_bn_precomp_r2_mod_n_u32(i32 noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare dso_local void @Hacl_Bignum_Exponentiation_bn_mod_exp_consttime_precomp_u32(i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @Hacl_Bignum_Exponentiation_bn_mod_exp_consttime_u32(i32 noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef %3, i32 noundef %4, ptr noundef %5, ptr noundef %6) local_unnamed_addr #1 {
  %8 = zext i32 %0 to i64
  %9 = alloca i32, i64 %8, align 16
  %10 = shl nuw nsw i64 %8, 2
  call void @llvm.memset.p0.i64(ptr nonnull align 16 %9, i8 0, i64 %10, i1 false)
  call void @Hacl_Bignum_Montgomery_bn_precomp_r2_mod_n_u32(i32 noundef %0, i32 noundef %1, ptr noundef %2, ptr noundef nonnull %9)
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = call i32 @Hacl_Bignum_ModInvLimb_mod_inv_uint32(i32 noundef %11)
  call void @Hacl_Bignum_Exponentiation_bn_mod_exp_consttime_precomp_u32(i32 noundef %0, ptr noundef nonnull %2, i32 noundef %12, ptr noundef nonnull %9, ptr noundef %3, i32 noundef %4, ptr noundef %5, ptr noundef %6)
  ret void
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #1 = { 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" }

!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"}


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