; LLVM IR from likle/cwalk :: test (extension_test)

; 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 [4 x i8], align 1
@__const.extension_change_hidden_file.buffer = external hidden unnamed_addr constant [4096 x i8], align 16
@.str.2 = external hidden unnamed_addr constant [24 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

declare void @cwk_path_set_style(i32 noundef) #2

declare i64 @cwk_path_change_extension(ptr noundef, ptr noundef, ptr noundef, i64 noundef) #2

; Function Attrs: nounwind willreturn memory(read)
declare i32 @strcmp(ptr noundef, ptr noundef) #3

; 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 i32 @extension_change_hidden_file() #4 {
  %1 = alloca i32, align 4
  %2 = alloca [4096 x i8], align 16
  %3 = alloca i64, align 8
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4096, ptr %2) #5
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %2, ptr align 16 @__const.extension_change_hidden_file.buffer, i64 4096, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  call void @cwk_path_set_style(i32 noundef 1)
  %5 = getelementptr inbounds [4096 x i8], ptr %2, i64 0, i64 0
  %6 = getelementptr inbounds [4096 x i8], ptr %2, i64 0, i64 0
  %7 = call i64 @cwk_path_change_extension(ptr noundef %5, ptr noundef @.str, ptr noundef %6, i64 noundef 4096)
  store i64 %7, ptr %3, align 8, !tbaa !5
  %8 = load i64, ptr %3, align 8, !tbaa !5
  %9 = icmp ne i64 %8, 23
  br i1 %9, label %10, label %11

10:                                               ; preds = %0
  store i32 1, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %17

11:                                               ; preds = %0
  %12 = getelementptr inbounds [4096 x i8], ptr %2, i64 0, i64 0
  %13 = call i32 @strcmp(ptr noundef @.str.2, ptr noundef %12) #6
  %14 = icmp ne i32 %13, 0
  br i1 %14, label %15, label %16

15:                                               ; preds = %11
  store i32 1, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %17

16:                                               ; preds = %11
  store i32 0, ptr %1, align 4
  store i32 1, ptr %4, align 4
  br label %17

17:                                               ; preds = %16, %15, %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4096, ptr %2) #5
  %18 = load i32, ptr %1, align 4
  ret i32 %18
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 willreturn memory(read) "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 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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }

!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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; 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 [4 x i8], align 1
@__const.extension_change_hidden_file.buffer = external hidden unnamed_addr constant [4096 x i8], align 16
@.str.2 = external hidden unnamed_addr constant [24 x i8], align 1

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

; 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) #1

declare void @cwk_path_set_style(i32 noundef) local_unnamed_addr #2

declare i64 @cwk_path_change_extension(ptr noundef, ptr noundef, ptr noundef, i64 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i32 @strcmp(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #3

; Function Attrs: mustprogress 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 range(i32 0, 2) i32 @extension_change_hidden_file() local_unnamed_addr #4 {
  %1 = alloca [4096 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 4096, ptr nonnull %1) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(4096) %1, ptr noundef nonnull align 16 dereferenceable(4096) @__const.extension_change_hidden_file.buffer, i64 4096, i1 false)
  tail call void @cwk_path_set_style(i32 noundef 1) #5
  %2 = call i64 @cwk_path_change_extension(ptr noundef nonnull %1, ptr noundef nonnull @.str, ptr noundef nonnull %1, i64 noundef 4096) #5
  %.not = icmp eq i64 %2, 23
  br i1 %.not, label %3, label %5

3:                                                ; preds = %0
  %4 = call i32 @strcmp(ptr noundef nonnull dereferenceable(1) @.str.2, ptr noundef nonnull dereferenceable(1) %1) #6
  %.not2 = icmp ne i32 %4, 0
  %. = zext i1 %.not2 to i32
  br label %5

5:                                                ; preds = %3, %0
  %.0 = phi i32 [ 1, %0 ], [ %., %3 ]
  call void @llvm.lifetime.end.p0(i64 4096, ptr nonnull %1) #5
  ret i32 %.0
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }

!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)"}


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