; LLVM IR from justinxu9905/bustub-2022-fall :: third_party/fmt/test/util.ll (Z18open_buffered_filePP8_IO_FILE)

; 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"

%"class.fmt::v9::buffered_file" = type { ptr }
%"class.fmt::v9::file" = type { i32 }

@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z18open_buffered_filePP8_IO_FILE(ptr dead_on_unwind noalias writable sret(%"class.fmt::v9::buffered_file") align 8 %0, ptr noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"class.fmt::v9::file", align 4
  %6 = alloca %"class.fmt::v9::file", align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i1, align 1
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  call void @_ZN3fmt2v94fileC2Ev(ptr noundef nonnull align 4 dereferenceable(4) %5) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  call void @_ZN3fmt2v94fileC2Ev(ptr noundef nonnull align 4 dereferenceable(4) %6) #5
  invoke void @_ZN3fmt2v94file4pipeERS1_S2_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %10 unwind label %20

10:                                               ; preds = %2
  %11 = invoke noundef i64 @_ZN3fmt2v94file5writeEPKvm(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef @.str, i64 noundef 12)
          to label %12 unwind label %20

12:                                               ; preds = %10
  invoke void @_ZN3fmt2v94file5closeEv(ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %13 unwind label %20

13:                                               ; preds = %12
  store i1 false, ptr %9, align 1
  invoke void @_ZN3fmt2v94file6fdopenEPKc(ptr dead_on_unwind writable sret(%"class.fmt::v9::buffered_file") align 8 %0, ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef @.str.1)
          to label %14 unwind label %20

14:                                               ; preds = %13
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %24

17:                                               ; preds = %14
  %18 = call noundef ptr @_ZNK3fmt2v913buffered_file3getEv(ptr noundef nonnull align 8 dereferenceable(8) %0) #5
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %18, ptr %19, align 8, !tbaa !5
  br label %24

20:                                               ; preds = %13, %12, %10, %2
  %21 = landingpad { ptr, i32 }
          cleanup
  %22 = extractvalue { ptr, i32 } %21, 0
  store ptr %22, ptr %7, align 8
  %23 = extractvalue { ptr, i32 } %21, 1
  store i32 %23, ptr %8, align 4
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %28

24:                                               ; preds = %17, %14
  store i1 true, ptr %9, align 1
  %25 = load i1, ptr %9, align 1
  br i1 %25, label %27, label %26

26:                                               ; preds = %24
  call void @_ZN3fmt2v913buffered_fileD1Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #5
  br label %27

27:                                               ; preds = %26, %24
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %5) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  ret void

28:                                               ; preds = %20
  %29 = load ptr, ptr %7, align 8
  %30 = load i32, ptr %8, align 4
  %31 = insertvalue { ptr, i32 } poison, ptr %29, 0
  %32 = insertvalue { ptr, i32 } %31, i32 %30, 1
  resume { ptr, i32 } %32
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3fmt2v94fileC2Ev(ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

declare void @_ZN3fmt2v94file4pipeERS1_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

declare i32 @__gxx_personality_v0(...)

declare noundef i64 @_ZN3fmt2v94file5writeEPKvm(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef, i64 noundef) #3

declare void @_ZN3fmt2v94file5closeEv(ptr noundef nonnull align 4 dereferenceable(4)) #3

declare void @_ZN3fmt2v94file6fdopenEPKc(ptr dead_on_unwind writable sret(%"class.fmt::v9::buffered_file") align 8, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK3fmt2v913buffered_file3getEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: nounwind
declare void @_ZN3fmt2v913buffered_fileD1Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #4

; Function Attrs: nounwind
declare void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress 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 nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 = { "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 "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 }

!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++ 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"

%"class.fmt::v9::buffered_file" = type { ptr }
%"class.fmt::v9::file" = type { i32 }

@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z18open_buffered_filePP8_IO_FILE(ptr dead_on_unwind noalias writable sret(%"class.fmt::v9::buffered_file") align 8 %0, ptr noundef writeonly %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.fmt::v9::file", align 4
  %4 = alloca %"class.fmt::v9::file", align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  call void @_ZN3fmt2v94fileC2Ev(ptr noundef nonnull align 4 dereferenceable(4) %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #5
  call void @_ZN3fmt2v94fileC2Ev(ptr noundef nonnull align 4 dereferenceable(4) %4) #5
  invoke void @_ZN3fmt2v94file4pipeERS1_S2_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %5 unwind label %12

5:                                                ; preds = %2
  %6 = invoke noundef i64 @_ZN3fmt2v94file5writeEPKvm(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull @.str, i64 noundef 12)
          to label %7 unwind label %12

7:                                                ; preds = %5
  invoke void @_ZN3fmt2v94file5closeEv(ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %8 unwind label %12

8:                                                ; preds = %7
  invoke void @_ZN3fmt2v94file6fdopenEPKc(ptr dead_on_unwind writable sret(%"class.fmt::v9::buffered_file") align 8 %0, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull @.str.1)
          to label %9 unwind label %12

9:                                                ; preds = %8
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %14, label %10

10:                                               ; preds = %9
  %11 = call noundef ptr @_ZNK3fmt2v913buffered_file3getEv(ptr noundef nonnull align 8 dereferenceable(8) %0) #5
  store ptr %11, ptr %1, align 8, !tbaa !5
  br label %14

12:                                               ; preds = %8, %7, %5, %2
  %13 = landingpad { ptr, i32 }
          cleanup
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  resume { ptr, i32 } %13

14:                                               ; preds = %9, %10
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %4) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #5
  call void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4) %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3fmt2v94fileC2Ev(ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #2 align 2

declare void @_ZN3fmt2v94file4pipeERS1_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

declare i32 @__gxx_personality_v0(...)

declare noundef i64 @_ZN3fmt2v94file5writeEPKvm(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef, i64 noundef) local_unnamed_addr #3

declare void @_ZN3fmt2v94file5closeEv(ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

declare void @_ZN3fmt2v94file6fdopenEPKc(ptr dead_on_unwind writable sret(%"class.fmt::v9::buffered_file") align 8, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK3fmt2v913buffered_file3getEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: nounwind
declare void @_ZN3fmt2v94fileD1Ev(ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress 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 nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 = { "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 "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 }

!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++ TBAA"}


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