; LLVM IR from cryspen/libcrux :: sys/hacl/c/src (Hacl_P256)

; 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 nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @bn_from_bytes_be4(ptr noundef, ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @qmod_short(ptr noundef, ptr noundef) #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @ecdsa_verify_msg_as_qelem(ptr noundef, ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @Hacl_P256_ecdsa_verif_without_hash(i32 noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #4 {
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca [4 x i64], align 16
  %12 = alloca [32 x i8], align 16
  %13 = alloca ptr, align 8
  %14 = alloca i8, align 1
  store i32 %0, ptr %6, align 4, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !9
  store ptr %2, ptr %8, align 8, !tbaa !9
  store ptr %3, ptr %9, align 8, !tbaa !9
  store ptr %4, ptr %10, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %11) #5
  call void @llvm.memset.p0.i64(ptr align 16 %11, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 32, ptr %12) #5
  call void @llvm.memset.p0.i64(ptr align 16 %12, i8 0, i64 32, i1 false)
  %15 = getelementptr inbounds [32 x i8], ptr %12, i64 0, i64 0
  %16 = load ptr, ptr %7, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %15, ptr align 1 %16, i64 32, i1 false)
  %17 = load i32, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #5
  %18 = getelementptr inbounds [32 x i8], ptr %12, i64 0, i64 0
  store ptr %18, ptr %13, align 8, !tbaa !9
  %19 = getelementptr inbounds [4 x i64], ptr %11, i64 0, i64 0
  %20 = load ptr, ptr %13, align 8, !tbaa !9
  call void @bn_from_bytes_be4(ptr noundef %19, ptr noundef %20)
  %21 = getelementptr inbounds [4 x i64], ptr %11, i64 0, i64 0
  %22 = getelementptr inbounds [4 x i64], ptr %11, i64 0, i64 0
  call void @qmod_short(ptr noundef %21, ptr noundef %22)
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #5
  %23 = getelementptr inbounds [4 x i64], ptr %11, i64 0, i64 0
  %24 = load ptr, ptr %8, align 8, !tbaa !9
  %25 = load ptr, ptr %9, align 8, !tbaa !9
  %26 = load ptr, ptr %10, align 8, !tbaa !9
  %27 = call zeroext i1 @ecdsa_verify_msg_as_qelem(ptr noundef %23, ptr noundef %24, ptr noundef %25, ptr noundef %26)
  %28 = zext i1 %27 to i8
  store i8 %28, ptr %14, align 1, !tbaa !11
  %29 = load i8, ptr %14, align 1, !tbaa !11, !range !13, !noundef !14
  %30 = trunc i8 %29 to i1
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #5
  ret i1 %30
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { 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}
!11 = !{!12, !12, i64 0}
!12 = !{!"_Bool", !7, i64 0}
!13 = !{i8 0, i8 2}
!14 = !{}


; 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 nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @bn_from_bytes_be4(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @qmod_short(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden zeroext i1 @ecdsa_verify_msg_as_qelem(ptr noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @Hacl_P256_ecdsa_verif_without_hash(i32 noundef %0, ptr nocapture noundef readonly %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) local_unnamed_addr #4 {
  %6 = alloca [4 x i64], align 16
  %7 = alloca [32 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #5
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %6, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %7) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %7, ptr noundef nonnull align 1 dereferenceable(32) %1, i64 32, i1 false)
  call void @bn_from_bytes_be4(ptr noundef nonnull %6, ptr noundef nonnull %7)
  call void @qmod_short(ptr noundef nonnull %6, ptr noundef nonnull %6)
  %8 = call zeroext i1 @ecdsa_verify_msg_as_qelem(ptr noundef nonnull %6, ptr noundef %2, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #5
  ret i1 %8
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { 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)"}


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