; LLVM IR from cryspen/libcrux :: sys/hacl/c/src (Hacl_Bignum4096)

; 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"

; 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

; Function Attrs: noinline nounwind uwtable
declare hidden i64 @FStar_UInt64_eq_mask(i64 noundef, i64 noundef) #1

; Function Attrs: noinline nounwind uwtable
declare hidden i64 @FStar_UInt64_gte_mask(i64 noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i64 @Hacl_Bignum4096_lt_mask(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !11
  br label %9

9:                                                ; preds = %50, %2
  %10 = load i32, ptr %6, align 4, !tbaa !11
  %11 = icmp ult i32 %10, 64
  br i1 %11, label %13, label %12

12:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %53

13:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = load i32, ptr %6, align 4, !tbaa !11
  %16 = zext i32 %15 to i64
  %17 = getelementptr inbounds i64, ptr %14, i64 %16
  %18 = load i64, ptr %17, align 8, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = load i32, ptr %6, align 4, !tbaa !11
  %21 = zext i32 %20 to i64
  %22 = getelementptr inbounds i64, ptr %19, i64 %21
  %23 = load i64, ptr %22, align 8, !tbaa !9
  %24 = call i64 @FStar_UInt64_eq_mask(i64 noundef %18, i64 noundef %23)
  store i64 %24, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !11
  %27 = zext i32 %26 to i64
  %28 = getelementptr inbounds i64, ptr %25, i64 %27
  %29 = load i64, ptr %28, align 8, !tbaa !9
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = load i32, ptr %6, align 4, !tbaa !11
  %32 = zext i32 %31 to i64
  %33 = getelementptr inbounds i64, ptr %30, i64 %32
  %34 = load i64, ptr %33, align 8, !tbaa !9
  %35 = call i64 @FStar_UInt64_gte_mask(i64 noundef %29, i64 noundef %34)
  %36 = xor i64 %35, -1
  store i64 %36, ptr %8, align 8, !tbaa !9
  %37 = load i64, ptr %7, align 8, !tbaa !9
  %38 = load i64, ptr %5, align 8, !tbaa !9
  %39 = and i64 %37, %38
  %40 = load i64, ptr %7, align 8, !tbaa !9
  %41 = xor i64 %40, -1
  %42 = load i64, ptr %8, align 8, !tbaa !9
  %43 = and i64 %42, -1
  %44 = load i64, ptr %8, align 8, !tbaa !9
  %45 = xor i64 %44, -1
  %46 = and i64 %45, 0
  %47 = or i64 %43, %46
  %48 = and i64 %41, %47
  %49 = or i64 %39, %48
  store i64 %49, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %50

50:                                               ; preds = %13
  %51 = load i32, ptr %6, align 4, !tbaa !11
  %52 = add i32 %51, 1
  store i32 %52, ptr %6, align 4, !tbaa !11
  br label %9, !llvm.loop !13

53:                                               ; preds = %12
  %54 = load i64, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  ret i64 %54
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noinline 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 = { 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 #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, !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, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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: noinline nounwind uwtable
declare hidden i64 @FStar_UInt64_eq_mask(i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: noinline nounwind uwtable
declare hidden i64 @FStar_UInt64_gte_mask(i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local i64 @Hacl_Bignum4096_lt_mask(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 {
  br label %4

3:                                                ; preds = %4
  ret i64 %15

4:                                                ; preds = %2, %4
  %indvars.iv = phi i64 [ 0, %2 ], [ %indvars.iv.next, %4 ]
  %.017 = phi i64 [ 0, %2 ], [ %15, %4 ]
  %5 = getelementptr inbounds i64, ptr %0, i64 %indvars.iv
  %6 = load i64, ptr %5, align 8, !tbaa !5
  %7 = getelementptr inbounds i64, ptr %1, i64 %indvars.iv
  %8 = load i64, ptr %7, align 8, !tbaa !5
  %9 = tail call i64 @FStar_UInt64_eq_mask(i64 noundef %6, i64 noundef %8)
  %10 = load i64, ptr %5, align 8, !tbaa !5
  %11 = load i64, ptr %7, align 8, !tbaa !5
  %12 = tail call i64 @FStar_UInt64_gte_mask(i64 noundef %10, i64 noundef %11)
  %13 = and i64 %9, %.017
  %.demorgan = or i64 %12, %9
  %14 = xor i64 %.demorgan, -1
  %15 = or i64 %13, %14
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, 64
  br i1 %exitcond.not, label %3, label %4, !llvm.loop !9
}

attributes #0 = { noinline 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 = { 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass