; LLVM IR from shanet/Crypto-Example :: Crypto.ll (ZN6Crypto8setAesIvEPhm)

; 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"

%class.Crypto = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, i64, 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: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN6Crypto8setAesIvEPhm(ptr noundef nonnull align 8 dereferenceable(72) %0, ptr noundef %1, i64 noundef %2) #1 align 2 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i64 %2, ptr %7, align 8, !tbaa !9
  %8 = load ptr, ptr %5, align 8
  %9 = load i64, ptr %7, align 8, !tbaa !9
  %10 = getelementptr inbounds %class.Crypto, ptr %8, i32 0, i32 8
  %11 = load i64, ptr %10, align 8, !tbaa !11
  %12 = icmp ne i64 %9, %11
  br i1 %12, label %13, label %14

13:                                               ; preds = %3
  store i32 -1, ptr %4, align 4
  br label %20

14:                                               ; preds = %3
  %15 = getelementptr inbounds %class.Crypto, ptr %8, i32 0, i32 6
  %16 = load ptr, ptr %15, align 8, !tbaa !13
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = getelementptr inbounds %class.Crypto, ptr %8, i32 0, i32 8
  %19 = load i64, ptr %18, align 8, !tbaa !11
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %16, ptr align 1 %17, i64 %19, i1 false)
  store i32 0, ptr %4, align 4
  br label %20

20:                                               ; preds = %14, %13
  %21 = load i32, ptr %4, align 4
  ret i32 %21
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 64}
!12 = !{!"_ZTS6Crypto", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !10, i64 56, !10, i64 64}
!13 = !{!12, !6, i64 48}


; 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(readwrite, inaccessiblemem: none) uwtable
define dso_local noundef range(i32 -1, 1) i32 @_ZN6Crypto8setAesIvEPhm(ptr nocapture noundef nonnull readonly align 8 dereferenceable(72) %0, ptr nocapture noundef readonly %1, i64 noundef %2) local_unnamed_addr #1 align 2 {
  %4 = getelementptr inbounds i8, ptr %0, i64 64
  %5 = load i64, ptr %4, align 8, !tbaa !5
  %.not = icmp eq i64 %5, %2
  br i1 %.not, label %6, label %9

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %0, i64 48
  %8 = load ptr, ptr %7, align 8, !tbaa !11
  tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %8, ptr align 1 %1, i64 %2, i1 false)
  br label %9

9:                                                ; preds = %3, %6
  %.0 = phi i32 [ 0, %6 ], [ -1, %3 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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, !10, i64 64}
!6 = !{!"_ZTS6Crypto", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !10, i64 56, !10, i64 64}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 48}


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