; LLVM IR from gost-engine/engine :: gost_gost2015 (gost_mgm128_setiv)

; 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.mgm128_context = type { %union.anon.0, %union.anon.0, %union.anon.0, %union.anon.0, %union.anon.0, %union.anon.0, %union.anon.0, %union.anon.0, %union.anon.0, %union.anon.0, i32, i32, ptr, ptr, i32, ptr }
%union.anon.0 = type { [2 x i64] }

; 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) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @gost_mgm128_setiv(ptr noundef %0, ptr noundef %1, i64 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.mgm128_context, ptr %7, i32 0, i32 5
  %9 = getelementptr inbounds [2 x i64], ptr %8, i64 0, i64 0
  store i64 0, ptr %9, align 8, !tbaa !11
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct.mgm128_context, ptr %10, i32 0, i32 5
  %12 = getelementptr inbounds [2 x i64], ptr %11, i64 0, i64 1
  store i64 0, ptr %12, align 8, !tbaa !11
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.mgm128_context, ptr %13, i32 0, i32 11
  store i32 0, ptr %14, align 4, !tbaa !12
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.mgm128_context, ptr %15, i32 0, i32 10
  store i32 0, ptr %16, align 8, !tbaa !15
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.mgm128_context, ptr %17, i32 0, i32 6
  %19 = getelementptr inbounds [2 x i64], ptr %18, i64 0, i64 0
  store i64 0, ptr %19, align 8, !tbaa !11
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.mgm128_context, ptr %20, i32 0, i32 6
  %22 = getelementptr inbounds [2 x i64], ptr %21, i64 0, i64 1
  store i64 0, ptr %22, align 8, !tbaa !11
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.mgm128_context, ptr %23, i32 0, i32 8
  %25 = getelementptr inbounds [2 x i64], ptr %24, i64 0, i64 0
  store i64 0, ptr %25, align 8, !tbaa !11
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.mgm128_context, ptr %26, i32 0, i32 8
  %28 = getelementptr inbounds [2 x i64], ptr %27, i64 0, i64 1
  store i64 0, ptr %28, align 8, !tbaa !11
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.mgm128_context, ptr %29, i32 0, i32 0
  %31 = getelementptr inbounds [16 x i8], ptr %30, i64 0, i64 0
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.mgm128_context, ptr %33, i32 0, i32 14
  %35 = load i32, ptr %34, align 8, !tbaa !16
  %36 = sext i32 %35 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %31, ptr align 1 %32, i64 %36, i1 false)
  %37 = load ptr, ptr %4, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.mgm128_context, ptr %37, i32 0, i32 0
  %39 = getelementptr inbounds [16 x i8], ptr %38, i64 0, i64 0
  %40 = load i8, ptr %39, align 8, !tbaa !11
  %41 = zext i8 %40 to i32
  %42 = and i32 %41, 127
  %43 = trunc i32 %42 to i8
  store i8 %43, ptr %39, align 8, !tbaa !11
  ret i32 1
}

attributes #0 = { nocallback nofree 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" }

!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 = !{!7, !7, i64 0}
!12 = !{!13, !14, i64 164}
!13 = !{!"", !7, i64 0, !7, i64 16, !7, i64 32, !7, i64 48, !7, i64 64, !7, i64 80, !7, i64 96, !7, i64 112, !7, i64 128, !7, i64 144, !14, i64 160, !14, i64 164, !6, i64 168, !6, i64 176, !14, i64 184, !6, i64 192}
!14 = !{!"int", !7, i64 0}
!15 = !{!13, !14, i64 160}
!16 = !{!13, !14, i64 184}


; 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local noundef i32 @gost_mgm128_setiv(ptr nocapture noundef %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #1 {
  %4 = getelementptr inbounds i8, ptr %0, i64 80
  %5 = getelementptr inbounds i8, ptr %0, i64 164
  store i32 0, ptr %5, align 4, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 160
  store i32 0, ptr %6, align 8, !tbaa !11
  %7 = getelementptr inbounds i8, ptr %0, i64 128
  %8 = getelementptr inbounds i8, ptr %0, i64 184
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %4, i8 0, i64 32, i1 false)
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %7, i8 0, i64 16, i1 false)
  %9 = load i32, ptr %8, align 8, !tbaa !12
  %10 = sext i32 %9 to i64
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 8 %0, ptr align 1 %1, i64 %10, i1 false)
  %11 = load i8, ptr %0, align 8, !tbaa !13
  %12 = and i8 %11, 127
  store i8 %12, ptr %0, align 8, !tbaa !13
  ret i32 1
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!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, !9, i64 164}
!6 = !{!"", !7, i64 0, !7, i64 16, !7, i64 32, !7, i64 48, !7, i64 64, !7, i64 80, !7, i64 96, !7, i64 112, !7, i64 128, !7, i64 144, !9, i64 160, !9, i64 164, !10, i64 168, !10, i64 176, !9, i64 184, !10, i64 192}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!6, !9, i64 160}
!12 = !{!6, !9, i64 184}
!13 = !{!7, !7, i64 0}


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