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

; 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.DIGEST_CTX = type { %union.anon, ptr }
%union.anon = type { %struct.SM3_CTX }
%struct.SM3_CTX = type { [8 x i32], i64, [64 x i8], i64 }
%struct.DIGEST = type { i32, i64, i64, i64, ptr, ptr, ptr }

@stderr = external global ptr, align 8
@.str.2 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [60 x i8], align 1
@__FUNCTION__.digest_init = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @digest_init(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.memset.p0.i64(ptr align 8 %6, i8 0, i64 120, i1 false)
  %7 = load ptr, ptr %5, align 8, !tbaa !5
  %8 = icmp eq ptr %7, null
  br i1 %8, label %9, label %14

9:                                                ; preds = %2
  br label %10

10:                                               ; preds = %9
  %11 = load ptr, ptr @stderr, align 8, !tbaa !5
  %12 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %11, ptr noundef @.str.2, ptr noundef @.str.3, i32 noundef 53, ptr noundef @__FUNCTION__.digest_init) #3
  br label %13

13:                                               ; preds = %10
  store i32 -1, ptr %3, align 4
  br label %25

14:                                               ; preds = %2
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.DIGEST_CTX, ptr %16, i32 0, i32 1
  store ptr %15, ptr %17, align 8, !tbaa !9
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.DIGEST_CTX, ptr %18, i32 0, i32 1
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  %21 = getelementptr inbounds %struct.DIGEST, ptr %20, i32 0, i32 4
  %22 = load ptr, ptr %21, align 8, !tbaa !11
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = call i32 %22(ptr noundef %23)
  store i32 1, ptr %3, align 4
  br label %25

25:                                               ; preds = %14, %13
  %26 = load i32, ptr %3, align 4
  ret i32 %26
}

; 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: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

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 nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #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, !6, i64 112}
!10 = !{!"DIGEST_CTX", !7, i64 0, !6, i64 112}
!11 = !{!12, !6, i64 32}
!12 = !{!"DIGEST", !13, i64 0, !14, i64 8, !14, i64 16, !14, i64 24, !6, i64 32, !6, i64 40, !6, i64 48}
!13 = !{!"int", !7, i64 0}
!14 = !{!"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.2 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [60 x i8], align 1
@__FUNCTION__.digest_init = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 2) i32 @digest_init(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(120) %0, i8 0, i64 120, i1 false)
  %3 = icmp eq ptr %1, null
  br i1 %3, label %4, label %7

4:                                                ; preds = %2
  %5 = load ptr, ptr @stderr, align 8, !tbaa !5
  %6 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %5, ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.3, i32 noundef 53, ptr noundef nonnull @__FUNCTION__.digest_init) #3
  br label %12

7:                                                ; preds = %2
  %8 = getelementptr inbounds i8, ptr %0, i64 112
  store ptr %1, ptr %8, align 8, !tbaa !9
  %9 = getelementptr inbounds i8, ptr %1, i64 32
  %10 = load ptr, ptr %9, align 8, !tbaa !11
  %11 = tail call i32 %10(ptr noundef nonnull %0) #4
  br label %12

12:                                               ; preds = %7, %4
  %.0 = phi i32 [ -1, %4 ], [ 1, %7 ]
  ret i32 %.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: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #3 = { cold nounwind }
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 112}
!10 = !{!"DIGEST_CTX", !7, i64 0, !6, i64 112}
!11 = !{!12, !6, i64 32}
!12 = !{!"DIGEST", !13, i64 0, !14, i64 8, !14, i64 16, !14, i64 24, !6, i64 32, !6, i64 40, !6, i64 48}
!13 = !{!"int", !7, i64 0}
!14 = !{!"long", !7, i64 0}


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