; LLVM IR from guanzhi/GmSSL :: src/skf (skf_prn)

; 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"

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1

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

8:                                                ; preds = %2
  store i32 167772176, ptr %3, align 4
  br label %20

9:                                                ; preds = %2
  %10 = load i32, ptr %4, align 4, !tbaa !5
  switch i32 %10, label %17 [
    i32 0, label %11
    i32 1, label %13
    i32 16, label %15
  ]

11:                                               ; preds = %9
  %12 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr @.str, ptr %12, align 8, !tbaa !9
  br label %19

13:                                               ; preds = %9
  %14 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr @.str.1, ptr %14, align 8, !tbaa !9
  br label %19

15:                                               ; preds = %9
  %16 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr @.str.2, ptr %16, align 8, !tbaa !9
  br label %19

17:                                               ; preds = %9
  %18 = load ptr, ptr %5, align 8, !tbaa !9
  store ptr @.str.3, ptr %18, align 8, !tbaa !9
  store i32 167772176, ptr %3, align 4
  br label %20

19:                                               ; preds = %15, %13, %11
  store i32 0, ptr %3, align 4
  br label %20

20:                                               ; preds = %19, %17, %8
  %21 = load i32, ptr %3, align 4
  ret i32 %21
}

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" }

!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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local range(i32 0, 167772177) i32 @SKF_GetDevStateName(i32 noundef %0, ptr noundef writeonly %1) local_unnamed_addr #0 {
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %7, label %3

3:                                                ; preds = %2
  switch i32 %0, label %6 [
    i32 0, label %.sink.split
    i32 1, label %4
    i32 16, label %5
  ]

4:                                                ; preds = %3
  br label %.sink.split

5:                                                ; preds = %3
  br label %.sink.split

6:                                                ; preds = %3
  br label %.sink.split

.sink.split:                                      ; preds = %3, %6, %5, %4
  %.str.sink = phi ptr [ @.str.1, %4 ], [ @.str.2, %5 ], [ @.str.3, %6 ], [ @.str, %3 ]
  %.0.ph = phi i32 [ 0, %4 ], [ 0, %5 ], [ 167772176, %6 ], [ %0, %3 ]
  store ptr %.str.sink, ptr %1, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %.sink.split, %2
  %.0 = phi i32 [ 167772176, %2 ], [ %.0.ph, %.sink.split ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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/C++ TBAA"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass