; LLVM IR from machinefi/psa-crypto-esp32 :: crypto (ecc)

; 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: nounwind uwtable
define dso_local signext i8 @uECC_vli_cmp_unsafe(ptr noundef %0, ptr noundef %1, i8 noundef signext %2) #1 {
  %4 = alloca i8, align 1
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i8, align 1
  %8 = alloca i8, align 1
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i8 %2, ptr %7, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #2
  %10 = load i8, ptr %7, align 1, !tbaa !9
  %11 = sext i8 %10 to i32
  %12 = sub nsw i32 %11, 1
  %13 = trunc i32 %12 to i8
  store i8 %13, ptr %8, align 1, !tbaa !9
  br label %14

14:                                               ; preds = %46, %3
  %15 = load i8, ptr %8, align 1, !tbaa !9
  %16 = sext i8 %15 to i32
  %17 = icmp sge i32 %16, 0
  br i1 %17, label %18, label %49

18:                                               ; preds = %14
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = load i8, ptr %8, align 1, !tbaa !9
  %21 = sext i8 %20 to i64
  %22 = getelementptr inbounds i32, ptr %19, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !10
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = load i8, ptr %8, align 1, !tbaa !9
  %26 = sext i8 %25 to i64
  %27 = getelementptr inbounds i32, ptr %24, i64 %26
  %28 = load i32, ptr %27, align 4, !tbaa !10
  %29 = icmp ugt i32 %23, %28
  br i1 %29, label %30, label %31

30:                                               ; preds = %18
  store i8 1, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %50

31:                                               ; preds = %18
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = load i8, ptr %8, align 1, !tbaa !9
  %34 = sext i8 %33 to i64
  %35 = getelementptr inbounds i32, ptr %32, i64 %34
  %36 = load i32, ptr %35, align 4, !tbaa !10
  %37 = load ptr, ptr %6, align 8, !tbaa !5
  %38 = load i8, ptr %8, align 1, !tbaa !9
  %39 = sext i8 %38 to i64
  %40 = getelementptr inbounds i32, ptr %37, i64 %39
  %41 = load i32, ptr %40, align 4, !tbaa !10
  %42 = icmp ult i32 %36, %41
  br i1 %42, label %43, label %44

43:                                               ; preds = %31
  store i8 -1, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %50

44:                                               ; preds = %31
  br label %45

45:                                               ; preds = %44
  br label %46

46:                                               ; preds = %45
  %47 = load i8, ptr %8, align 1, !tbaa !9
  %48 = add i8 %47, -1
  store i8 %48, ptr %8, align 1, !tbaa !9
  br label %14, !llvm.loop !12

49:                                               ; preds = %14
  store i8 0, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %50

50:                                               ; preds = %49, %43, %30
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #2
  %51 = load i8, ptr %4, align 1
  ret i8 %51
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
attributes #2 = { 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 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local signext range(i8 -1, 2) i8 @uECC_vli_cmp_unsafe(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, i8 noundef signext %2) local_unnamed_addr #0 {
  %4 = zext i8 %2 to i64
  br label %5

5:                                                ; preds = %15, %3
  %indvars.iv = phi i64 [ %indvars.iv.next, %15 ], [ %4, %3 ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %6 = and i64 %indvars.iv.next, 128
  %7 = icmp eq i64 %6, 0
  br i1 %7, label %8, label %17

8:                                                ; preds = %5
  %9 = and i64 %indvars.iv.next, 127
  %10 = getelementptr inbounds i32, ptr %0, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = getelementptr inbounds i32, ptr %1, i64 %9
  %13 = load i32, ptr %12, align 4, !tbaa !5
  %14 = icmp ugt i32 %11, %13
  br i1 %14, label %17, label %15

15:                                               ; preds = %8
  %16 = icmp ult i32 %11, %13
  br i1 %16, label %17, label %5, !llvm.loop !9

17:                                               ; preds = %5, %15, %8
  %.011 = phi i8 [ 1, %8 ], [ -1, %15 ], [ 0, %5 ]
  ret i8 %.011
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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