; LLVM IR from gost-engine/engine :: gost_ec_sign (free_cached_groups)

; 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.R3410_ec = type { i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@R3410_2012_512_paramset = external global [0 x %struct.R3410_ec], align 8
@R3410_2001_paramset = external global [0 x %struct.R3410_ec], align 8

; Function Attrs: nounwind uwtable
define dso_local void @free_cached_groups() #0 {
  %1 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #3
  store ptr @R3410_2012_512_paramset, ptr %1, align 8, !tbaa !5
  br label %2

2:                                                ; preds = %7, %0
  %3 = load ptr, ptr %1, align 8, !tbaa !5
  %4 = getelementptr inbounds %struct.R3410_ec, ptr %3, i32 0, i32 0
  %5 = load i32, ptr %4, align 8, !tbaa !9
  %6 = icmp ne i32 %5, 0
  br i1 %6, label %7, label %15

7:                                                ; preds = %2
  %8 = load ptr, ptr %1, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.R3410_ec, ptr %8, i32 0, i32 8
  %10 = load ptr, ptr %9, align 8, !tbaa !12
  call void @EC_GROUP_free(ptr noundef %10)
  %11 = load ptr, ptr %1, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.R3410_ec, ptr %11, i32 0, i32 8
  store ptr null, ptr %12, align 8, !tbaa !12
  %13 = load ptr, ptr %1, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.R3410_ec, ptr %13, i32 1
  store ptr %14, ptr %1, align 8, !tbaa !5
  br label %2, !llvm.loop !13

15:                                               ; preds = %2
  store ptr @R3410_2001_paramset, ptr %1, align 8, !tbaa !5
  br label %16

16:                                               ; preds = %21, %15
  %17 = load ptr, ptr %1, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.R3410_ec, ptr %17, i32 0, i32 0
  %19 = load i32, ptr %18, align 8, !tbaa !9
  %20 = icmp ne i32 %19, 0
  br i1 %20, label %21, label %29

21:                                               ; preds = %16
  %22 = load ptr, ptr %1, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.R3410_ec, ptr %22, i32 0, i32 8
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  call void @EC_GROUP_free(ptr noundef %24)
  %25 = load ptr, ptr %1, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.R3410_ec, ptr %25, i32 0, i32 8
  store ptr null, ptr %26, align 8, !tbaa !12
  %27 = load ptr, ptr %1, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.R3410_ec, ptr %27, i32 1
  store ptr %28, ptr %1, align 8, !tbaa !5
  br label %16, !llvm.loop !15

29:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare void @EC_GROUP_free(ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 = { nocallback nofree nosync 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 }

!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, !11, i64 0}
!10 = !{!"R3410_ec", !11, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 64}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !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"

%struct.R3410_ec = type { i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@R3410_2012_512_paramset = external local_unnamed_addr global [0 x %struct.R3410_ec], align 8
@R3410_2001_paramset = external local_unnamed_addr global [0 x %struct.R3410_ec], align 8

; Function Attrs: nounwind uwtable
define dso_local void @free_cached_groups() local_unnamed_addr #0 {
  %1 = load i32, ptr @R3410_2012_512_paramset, align 8, !tbaa !5
  %.not9 = icmp eq i32 %1, 0
  br i1 %.not9, label %.preheader, label %.lr.ph

.preheader:                                       ; preds = %.lr.ph, %0
  %2 = load i32, ptr @R3410_2001_paramset, align 8, !tbaa !5
  %.not811 = icmp eq i32 %2, 0
  br i1 %.not811, label %._crit_edge, label %.lr.ph13

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.010 = phi ptr [ %5, %.lr.ph ], [ @R3410_2012_512_paramset, %0 ]
  %3 = getelementptr inbounds i8, ptr %.010, i64 64
  %4 = load ptr, ptr %3, align 8, !tbaa !11
  tail call void @EC_GROUP_free(ptr noundef %4) #2
  store ptr null, ptr %3, align 8, !tbaa !11
  %5 = getelementptr inbounds i8, ptr %.010, i64 72
  %6 = load i32, ptr %5, align 8, !tbaa !5
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %.preheader, label %.lr.ph, !llvm.loop !12

.lr.ph13:                                         ; preds = %.preheader, %.lr.ph13
  %.112 = phi ptr [ %9, %.lr.ph13 ], [ @R3410_2001_paramset, %.preheader ]
  %7 = getelementptr inbounds i8, ptr %.112, i64 64
  %8 = load ptr, ptr %7, align 8, !tbaa !11
  tail call void @EC_GROUP_free(ptr noundef %8) #2
  store ptr null, ptr %7, align 8, !tbaa !11
  %9 = getelementptr inbounds i8, ptr %.112, i64 72
  %10 = load i32, ptr %9, align 8, !tbaa !5
  %.not8 = icmp eq i32 %10, 0
  br i1 %.not8, label %._crit_edge, label %.lr.ph13, !llvm.loop !14

._crit_edge:                                      ; preds = %.lr.ph13, %.preheader
  ret void
}

declare void @EC_GROUP_free(ptr noundef) local_unnamed_addr #1

attributes #0 = { 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 = { "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, !7, i64 0}
!6 = !{!"R3410_ec", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !10, i64 48, !10, i64 56, !10, i64 64}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 64}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}


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