; LLVM IR from china-hai/yd_crypto :: src/des_tdes (yd_tdes_cbc)

; 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

declare void @yd_des_crypto(ptr noundef, ptr noundef, i8 noundef zeroext) #1

; 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 void @yd_tdes_cbc_decrypt(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5, i32 noundef %6) #2 {
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca i8, align 1
  store ptr %0, ptr %8, align 8, !tbaa !5
  store ptr %1, ptr %9, align 8, !tbaa !5
  store ptr %2, ptr %10, align 8, !tbaa !5
  store ptr %3, ptr %11, align 8, !tbaa !5
  store ptr %4, ptr %12, align 8, !tbaa !5
  store ptr %5, ptr %13, align 8, !tbaa !5
  store i32 %6, ptr %14, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %15) #3
  br label %16

16:                                               ; preds = %66, %7
  %17 = load i32, ptr %14, align 4, !tbaa !9
  %18 = icmp ugt i32 %17, 0
  br i1 %18, label %19, label %74

19:                                               ; preds = %16
  store i8 0, ptr %15, align 1, !tbaa !11
  br label %20

20:                                               ; preds = %34, %19
  %21 = load i8, ptr %15, align 1, !tbaa !11
  %22 = zext i8 %21 to i32
  %23 = icmp slt i32 %22, 8
  br i1 %23, label %24, label %37

24:                                               ; preds = %20
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = load i8, ptr %15, align 1, !tbaa !11
  %27 = zext i8 %26 to i64
  %28 = getelementptr inbounds i8, ptr %25, i64 %27
  %29 = load i8, ptr %28, align 1, !tbaa !11
  %30 = load ptr, ptr %9, align 8, !tbaa !5
  %31 = load i8, ptr %15, align 1, !tbaa !11
  %32 = zext i8 %31 to i64
  %33 = getelementptr inbounds i8, ptr %30, i64 %32
  store i8 %29, ptr %33, align 1, !tbaa !11
  br label %34

34:                                               ; preds = %24
  %35 = load i8, ptr %15, align 1, !tbaa !11
  %36 = add i8 %35, 1
  store i8 %36, ptr %15, align 1, !tbaa !11
  br label %20, !llvm.loop !12

37:                                               ; preds = %20
  %38 = load ptr, ptr %9, align 8, !tbaa !5
  %39 = load ptr, ptr %12, align 8, !tbaa !5
  call void @yd_des_crypto(ptr noundef %38, ptr noundef %39, i8 noundef zeroext 1)
  %40 = load ptr, ptr %9, align 8, !tbaa !5
  %41 = load ptr, ptr %11, align 8, !tbaa !5
  call void @yd_des_crypto(ptr noundef %40, ptr noundef %41, i8 noundef zeroext 0)
  %42 = load ptr, ptr %9, align 8, !tbaa !5
  %43 = load ptr, ptr %10, align 8, !tbaa !5
  call void @yd_des_crypto(ptr noundef %42, ptr noundef %43, i8 noundef zeroext 1)
  store i8 0, ptr %15, align 1, !tbaa !11
  br label %44

44:                                               ; preds = %63, %37
  %45 = load i8, ptr %15, align 1, !tbaa !11
  %46 = zext i8 %45 to i32
  %47 = icmp slt i32 %46, 8
  br i1 %47, label %48, label %66

48:                                               ; preds = %44
  %49 = load ptr, ptr %13, align 8, !tbaa !5
  %50 = load i8, ptr %15, align 1, !tbaa !11
  %51 = zext i8 %50 to i64
  %52 = getelementptr inbounds i8, ptr %49, i64 %51
  %53 = load i8, ptr %52, align 1, !tbaa !11
  %54 = zext i8 %53 to i32
  %55 = load ptr, ptr %9, align 8, !tbaa !5
  %56 = load i8, ptr %15, align 1, !tbaa !11
  %57 = zext i8 %56 to i64
  %58 = getelementptr inbounds i8, ptr %55, i64 %57
  %59 = load i8, ptr %58, align 1, !tbaa !11
  %60 = zext i8 %59 to i32
  %61 = xor i32 %60, %54
  %62 = trunc i32 %61 to i8
  store i8 %62, ptr %58, align 1, !tbaa !11
  br label %63

63:                                               ; preds = %48
  %64 = load i8, ptr %15, align 1, !tbaa !11
  %65 = add i8 %64, 1
  store i8 %65, ptr %15, align 1, !tbaa !11
  br label %44, !llvm.loop !14

66:                                               ; preds = %44
  %67 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %67, ptr %13, align 8, !tbaa !5
  %68 = load ptr, ptr %8, align 8, !tbaa !5
  %69 = getelementptr inbounds i8, ptr %68, i64 8
  store ptr %69, ptr %8, align 8, !tbaa !5
  %70 = load ptr, ptr %9, align 8, !tbaa !5
  %71 = getelementptr inbounds i8, ptr %70, i64 8
  store ptr %71, ptr %9, align 8, !tbaa !5
  %72 = load i32, ptr %14, align 4, !tbaa !9
  %73 = add i32 %72, -1
  store i32 %73, ptr %14, align 4, !tbaa !9
  br label %16, !llvm.loop !15

74:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #3
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 #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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = distinct !{!15, !13}


; 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"

declare void @yd_des_crypto(ptr noundef, ptr noundef, i8 noundef zeroext) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @yd_tdes_cbc_decrypt(ptr nocapture noundef readonly %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr nocapture noundef readonly %5, i32 noundef %6) local_unnamed_addr #1 {
  %.not28 = icmp eq i32 %6, 0
  br i1 %.not28, label %._crit_edge, label %.preheader

.preheader:                                       ; preds = %7, %.preheader
  %.02232 = phi i32 [ %63, %.preheader ], [ %6, %7 ]
  %.02331 = phi ptr [ %.02430, %.preheader ], [ %5, %7 ]
  %.02430 = phi ptr [ %61, %.preheader ], [ %0, %7 ]
  %.02529 = phi ptr [ %62, %.preheader ], [ %1, %7 ]
  %8 = load i8, ptr %.02430, align 1, !tbaa !5
  store i8 %8, ptr %.02529, align 1, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %.02430, i64 1
  %10 = load i8, ptr %9, align 1, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %.02529, i64 1
  store i8 %10, ptr %11, align 1, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %.02430, i64 2
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %.02529, i64 2
  store i8 %13, ptr %14, align 1, !tbaa !5
  %15 = getelementptr inbounds i8, ptr %.02430, i64 3
  %16 = load i8, ptr %15, align 1, !tbaa !5
  %17 = getelementptr inbounds i8, ptr %.02529, i64 3
  store i8 %16, ptr %17, align 1, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %.02430, i64 4
  %19 = load i8, ptr %18, align 1, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %.02529, i64 4
  store i8 %19, ptr %20, align 1, !tbaa !5
  %21 = getelementptr inbounds i8, ptr %.02430, i64 5
  %22 = load i8, ptr %21, align 1, !tbaa !5
  %23 = getelementptr inbounds i8, ptr %.02529, i64 5
  store i8 %22, ptr %23, align 1, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %.02430, i64 6
  %25 = load i8, ptr %24, align 1, !tbaa !5
  %26 = getelementptr inbounds i8, ptr %.02529, i64 6
  store i8 %25, ptr %26, align 1, !tbaa !5
  %27 = getelementptr inbounds i8, ptr %.02430, i64 7
  %28 = load i8, ptr %27, align 1, !tbaa !5
  %29 = getelementptr inbounds i8, ptr %.02529, i64 7
  store i8 %28, ptr %29, align 1, !tbaa !5
  tail call void @yd_des_crypto(ptr noundef nonnull %.02529, ptr noundef %4, i8 noundef zeroext 1) #2
  tail call void @yd_des_crypto(ptr noundef nonnull %.02529, ptr noundef %3, i8 noundef zeroext 0) #2
  tail call void @yd_des_crypto(ptr noundef nonnull %.02529, ptr noundef %2, i8 noundef zeroext 1) #2
  %30 = load i8, ptr %.02331, align 1, !tbaa !5
  %31 = load i8, ptr %.02529, align 1, !tbaa !5
  %32 = xor i8 %31, %30
  store i8 %32, ptr %.02529, align 1, !tbaa !5
  %33 = getelementptr inbounds i8, ptr %.02331, i64 1
  %34 = load i8, ptr %33, align 1, !tbaa !5
  %35 = load i8, ptr %11, align 1, !tbaa !5
  %36 = xor i8 %35, %34
  store i8 %36, ptr %11, align 1, !tbaa !5
  %37 = getelementptr inbounds i8, ptr %.02331, i64 2
  %38 = load i8, ptr %37, align 1, !tbaa !5
  %39 = load i8, ptr %14, align 1, !tbaa !5
  %40 = xor i8 %39, %38
  store i8 %40, ptr %14, align 1, !tbaa !5
  %41 = getelementptr inbounds i8, ptr %.02331, i64 3
  %42 = load i8, ptr %41, align 1, !tbaa !5
  %43 = load i8, ptr %17, align 1, !tbaa !5
  %44 = xor i8 %43, %42
  store i8 %44, ptr %17, align 1, !tbaa !5
  %45 = getelementptr inbounds i8, ptr %.02331, i64 4
  %46 = load i8, ptr %45, align 1, !tbaa !5
  %47 = load i8, ptr %20, align 1, !tbaa !5
  %48 = xor i8 %47, %46
  store i8 %48, ptr %20, align 1, !tbaa !5
  %49 = getelementptr inbounds i8, ptr %.02331, i64 5
  %50 = load i8, ptr %49, align 1, !tbaa !5
  %51 = load i8, ptr %23, align 1, !tbaa !5
  %52 = xor i8 %51, %50
  store i8 %52, ptr %23, align 1, !tbaa !5
  %53 = getelementptr inbounds i8, ptr %.02331, i64 6
  %54 = load i8, ptr %53, align 1, !tbaa !5
  %55 = load i8, ptr %26, align 1, !tbaa !5
  %56 = xor i8 %55, %54
  store i8 %56, ptr %26, align 1, !tbaa !5
  %57 = getelementptr inbounds i8, ptr %.02331, i64 7
  %58 = load i8, ptr %57, align 1, !tbaa !5
  %59 = load i8, ptr %29, align 1, !tbaa !5
  %60 = xor i8 %59, %58
  store i8 %60, ptr %29, align 1, !tbaa !5
  %61 = getelementptr inbounds i8, ptr %.02430, i64 8
  %62 = getelementptr inbounds i8, ptr %.02529, i64 8
  %63 = add i32 %.02232, -1
  %.not = icmp eq i32 %63, 0
  br i1 %.not, label %._crit_edge, label %.preheader, !llvm.loop !8

._crit_edge:                                      ; preds = %.preheader, %7
  ret void
}

attributes #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 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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