; LLVM IR from guanzhi/GmSSL :: src/sdf (sdf)

; 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.SDF_KEY = type { ptr, ptr }
%struct.SDF_CBC_CTX = type { %struct.SDF_KEY, [16 x i8], [16 x i8], i64 }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [61 x i8], align 1
@__FUNCTION__.sdf_cbc_decrypt_init = external hidden unnamed_addr constant [21 x i8], align 1

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; 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) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @sdf_cbc_decrypt_init(ptr noundef %0, ptr noundef %1, ptr noundef %2) #3 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %16

10:                                               ; preds = %3
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %13, label %16

13:                                               ; preds = %10
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = icmp ne ptr %14, null
  br i1 %15, label %21, label %16

16:                                               ; preds = %13, %10, %3
  br label %17

17:                                               ; preds = %16
  %18 = load ptr, ptr @stderr, align 8, !tbaa !5
  %19 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %18, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 610, ptr noundef @__FUNCTION__.sdf_cbc_decrypt_init) #4
  br label %20

20:                                               ; preds = %17
  store i32 -1, ptr %4, align 4
  br label %49

21:                                               ; preds = %13
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.SDF_KEY, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !9
  %25 = icmp ne ptr %24, null
  br i1 %25, label %26, label %31

26:                                               ; preds = %21
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.SDF_KEY, ptr %27, i32 0, i32 1
  %29 = load ptr, ptr %28, align 8, !tbaa !11
  %30 = icmp ne ptr %29, null
  br i1 %30, label %36, label %31

31:                                               ; preds = %26, %21
  br label %32

32:                                               ; preds = %31
  %33 = load ptr, ptr @stderr, align 8, !tbaa !5
  %34 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %33, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 614, ptr noundef @__FUNCTION__.sdf_cbc_decrypt_init) #4
  br label %35

35:                                               ; preds = %32
  store i32 -1, ptr %4, align 4
  br label %49

36:                                               ; preds = %26
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.SDF_CBC_CTX, ptr %37, i32 0, i32 0
  %39 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %38, ptr align 8 %39, i64 16, i1 false), !tbaa.struct !12
  %40 = load ptr, ptr %5, align 8, !tbaa !5
  %41 = getelementptr inbounds %struct.SDF_CBC_CTX, ptr %40, i32 0, i32 1
  %42 = getelementptr inbounds [16 x i8], ptr %41, i64 0, i64 0
  %43 = load ptr, ptr %7, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %42, ptr align 1 %43, i64 16, i1 false)
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  %45 = getelementptr inbounds %struct.SDF_CBC_CTX, ptr %44, i32 0, i32 2
  %46 = getelementptr inbounds [16 x i8], ptr %45, i64 0, i64 0
  call void @llvm.memset.p0.i64(ptr align 8 %46, i8 0, i64 16, i1 false)
  %47 = load ptr, ptr %5, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.SDF_CBC_CTX, ptr %47, i32 0, i32 3
  store i64 0, ptr %48, align 8, !tbaa !13
  store i32 1, ptr %4, align 4
  br label %49

49:                                               ; preds = %36, %35, %20
  %50 = load i32, ptr %4, align 4
  ret i32 %50
}

attributes #0 = { nounwind "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 nounwind willreturn memory(argmem: write) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{i64 0, i64 8, !5, i64 8, i64 8, !5}
!13 = !{!14, !15, i64 48}
!14 = !{!"", !10, i64 0, !7, i64 16, !7, i64 32, !15, i64 48}
!15 = !{!"long", !7, i64 0}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [61 x i8], align 1
@__FUNCTION__.sdf_cbc_decrypt_init = external hidden unnamed_addr constant [21 x i8], align 1

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; 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) #2

; Function Attrs: nofree nounwind uwtable
define dso_local range(i32 -1, 2) i32 @sdf_cbc_decrypt_init(ptr noundef writeonly %0, ptr noundef readonly %1, ptr noundef readonly %2) local_unnamed_addr #3 {
  %4 = icmp ne ptr %0, null
  %5 = icmp ne ptr %1, null
  %or.cond = and i1 %4, %5
  %6 = icmp ne ptr %2, null
  %or.cond3 = and i1 %or.cond, %6
  br i1 %or.cond3, label %10, label %7

7:                                                ; preds = %3
  %8 = load ptr, ptr @stderr, align 8, !tbaa !5
  %9 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %8, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 610, ptr noundef nonnull @__FUNCTION__.sdf_cbc_decrypt_init) #4
  br label %21

10:                                               ; preds = %3
  %11 = load ptr, ptr %1, align 8, !tbaa !9
  %.not = icmp eq ptr %11, null
  br i1 %.not, label %15, label %12

12:                                               ; preds = %10
  %13 = getelementptr inbounds i8, ptr %1, i64 8
  %14 = load ptr, ptr %13, align 8, !tbaa !11
  %.not17 = icmp eq ptr %14, null
  br i1 %.not17, label %15, label %18

15:                                               ; preds = %10, %12
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  %17 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 614, ptr noundef nonnull @__FUNCTION__.sdf_cbc_decrypt_init) #4
  br label %21

18:                                               ; preds = %12
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %1, i64 16, i1 false), !tbaa.struct !12
  %19 = getelementptr inbounds i8, ptr %0, i64 16
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 1 dereferenceable(16) %2, i64 16, i1 false)
  %20 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(24) %20, i8 0, i64 24, i1 false)
  br label %21

21:                                               ; preds = %18, %15, %7
  %.0 = phi i32 [ 1, %18 ], [ -1, %15 ], [ -1, %7 ]
  ret i32 %.0
}

attributes #0 = { nofree nounwind "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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nofree 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 = { cold 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, !6, i64 0}
!10 = !{!"", !6, i64 0, !6, i64 8}
!11 = !{!10, !6, i64 8}
!12 = !{i64 0, i64 8, !5, i64 8, i64 8, !5}


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