; LLVM IR from guanzhi/GmSSL :: src (sm9_z256)

; 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"

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [62 x i8], align 1
@__FUNCTION__.sm9_z256_fp4_rand = external hidden unnamed_addr constant [18 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @sm9_z256_fp2_rand(ptr noundef) #2

; Function Attrs: nounwind uwtable
define dso_local i32 @sm9_z256_fp4_rand(ptr noundef %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds [2 x [4 x i64]], ptr %6, i64 1
  %8 = getelementptr inbounds [2 x [4 x i64]], ptr %7, i64 0, i64 0
  %9 = call i32 @sm9_z256_fp2_rand(ptr noundef %8)
  store i32 %9, ptr %4, align 4, !tbaa !9
  %10 = icmp ne i32 %9, 1
  br i1 %10, label %11, label %22

11:                                               ; preds = %1
  %12 = load i32, ptr %4, align 4, !tbaa !9
  %13 = icmp ne i32 %12, 0
  br i1 %13, label %14, label %20

14:                                               ; preds = %11
  br label %15

15:                                               ; preds = %14
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  %17 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 1084, ptr noundef @__FUNCTION__.sm9_z256_fp4_rand) #3
  br label %18

18:                                               ; preds = %15
  br label %19

19:                                               ; preds = %18
  br label %20

20:                                               ; preds = %19, %11
  %21 = load i32, ptr %4, align 4, !tbaa !9
  store i32 %21, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %40

22:                                               ; preds = %1
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds [2 x [4 x i64]], ptr %23, i64 0
  %25 = getelementptr inbounds [2 x [4 x i64]], ptr %24, i64 0, i64 0
  %26 = call i32 @sm9_z256_fp2_rand(ptr noundef %25)
  store i32 %26, ptr %4, align 4, !tbaa !9
  %27 = icmp ne i32 %26, 1
  br i1 %27, label %28, label %39

28:                                               ; preds = %22
  %29 = load i32, ptr %4, align 4, !tbaa !9
  %30 = icmp ne i32 %29, 0
  br i1 %30, label %31, label %37

31:                                               ; preds = %28
  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 1088, ptr noundef @__FUNCTION__.sm9_z256_fp4_rand) #3
  br label %35

35:                                               ; preds = %32
  br label %36

36:                                               ; preds = %35
  br label %37

37:                                               ; preds = %36, %28
  %38 = load i32, ptr %4, align 4, !tbaa !9
  store i32 %38, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %40

39:                                               ; preds = %22
  store i32 1, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %40

40:                                               ; preds = %39, %37, %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  %41 = load i32, ptr %2, align 4
  ret i32 %41
}

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


; 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 [62 x i8], align 1
@__FUNCTION__.sm9_z256_fp4_rand = external hidden unnamed_addr constant [18 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: nounwind uwtable
declare dso_local i32 @sm9_z256_fp2_rand(ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @sm9_z256_fp4_rand(ptr noundef %0) local_unnamed_addr #1 {
  %2 = getelementptr inbounds i8, ptr %0, i64 64
  %3 = tail call i32 @sm9_z256_fp2_rand(ptr noundef nonnull %2)
  switch i32 %3, label %.sink.split [
    i32 1, label %4
    i32 0, label %8
  ]

4:                                                ; preds = %1
  %5 = tail call i32 @sm9_z256_fp2_rand(ptr noundef %0)
  %switch = icmp ult i32 %5, 2
  br i1 %switch, label %8, label %.sink.split

.sink.split:                                      ; preds = %4, %1
  %.sink11 = phi i32 [ 1084, %1 ], [ 1088, %4 ]
  %.0.ph = phi i32 [ %3, %1 ], [ %5, %4 ]
  %6 = load ptr, ptr @stderr, align 8, !tbaa !5
  %7 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %6, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef %.sink11, ptr noundef nonnull @__FUNCTION__.sm9_z256_fp4_rand) #2
  br label %8

8:                                                ; preds = %4, %.sink.split, %1
  %.0 = phi i32 [ %3, %1 ], [ %5, %4 ], [ %.0.ph, %.sink.split ]
  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 = { 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 = { 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"}


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