; LLVM IR from square/subzero :: core/trezor-crypto/tests (test_speed)

; 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.ecdsa_curve = type { %struct.bignum256, %struct.curve_point, %struct.bignum256, %struct.bignum256, i32, %struct.bignum256, [64 x [8 x %struct.curve_point]] }
%struct.curve_point = type { %struct.bignum256, %struct.bignum256 }
%struct.bignum256 = type { [9 x i32] }

@msg = external hidden global [256 x i8], align 16
@.str = external hidden unnamed_addr constant [33 x i8], align 1
@nist256p1 = external constant %struct.ecdsa_curve, align 4

; 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: 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) #1

declare i32 @ecdsa_sign(ptr noundef, i32 noundef, ptr noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local void @bench_sign_nist256p1(i32 noundef %0) #3 {
  %2 = alloca i32, align 4
  %3 = alloca [64 x i8], align 16
  %4 = alloca [32 x i8], align 16
  %5 = alloca i8, align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 64, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  store ptr @nist256p1, ptr %6, align 8, !tbaa !9
  %8 = getelementptr inbounds [32 x i8], ptr %4, i64 0, i64 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %8, ptr align 1 @.str, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %19, %1
  %10 = load i32, ptr %7, align 4, !tbaa !5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %22

14:                                               ; preds = %9
  %15 = load ptr, ptr %6, align 8, !tbaa !9
  %16 = getelementptr inbounds [32 x i8], ptr %4, i64 0, i64 0
  %17 = getelementptr inbounds [64 x i8], ptr %3, i64 0, i64 0
  %18 = call i32 @ecdsa_sign(ptr noundef %15, i32 noundef 0, ptr noundef %16, ptr noundef @msg, i32 noundef 256, ptr noundef %17, ptr noundef %5, ptr noundef null)
  br label %19

19:                                               ; preds = %14
  %20 = load i32, ptr %7, align 4, !tbaa !5
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %7, align 4, !tbaa !5
  br label %9, !llvm.loop !11

22:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 64, ptr %3) #4
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 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 #4 = { 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 = distinct !{!11, !12}
!12 = !{!"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"

%struct.ecdsa_curve = type { %struct.bignum256, %struct.curve_point, %struct.bignum256, %struct.bignum256, i32, %struct.bignum256, [64 x [8 x %struct.curve_point]] }
%struct.curve_point = type { %struct.bignum256, %struct.bignum256 }
%struct.bignum256 = type { [9 x i32] }

@msg = external hidden global [256 x i8], align 16
@.str = external hidden unnamed_addr constant [33 x i8], align 1
@nist256p1 = external constant %struct.ecdsa_curve, align 4

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

; 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) #1

declare i32 @ecdsa_sign(ptr noundef, i32 noundef, ptr noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @bench_sign_nist256p1(i32 noundef %0) local_unnamed_addr #3 {
  %2 = alloca [64 x i8], align 16
  %3 = alloca [32 x i8], align 16
  %4 = alloca i8, align 1
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %3, ptr noundef nonnull align 1 dereferenceable(32) @.str, i64 32, i1 false)
  %5 = icmp sgt i32 %0, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %2) #4
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.03 = phi i32 [ %7, %.lr.ph ], [ 0, %1 ]
  %6 = call i32 @ecdsa_sign(ptr noundef nonnull @nist256p1, i32 noundef 0, ptr noundef nonnull %3, ptr noundef nonnull @msg, i32 noundef 256, ptr noundef nonnull %2, ptr noundef nonnull %4, ptr noundef null) #4
  %7 = add nuw nsw i32 %.03, 1
  %exitcond.not = icmp eq i32 %7, %0
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 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 #4 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass