; LLVM IR from gulrak/filesystem :: test/filesystem_test.ll (ZN5Catch15makeTestInvokerEPFvvE)

; 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.std::nothrow_t" = type { i8 }

@_ZSt7nothrow = external global %"struct.std::nothrow_t", align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZN5Catch15makeTestInvokerEPFvvE(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca i1, align 1
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = call noalias noundef ptr @_ZnwmRKSt9nothrow_t(i64 noundef 16, ptr noundef nonnull align 1 dereferenceable(1) @_ZSt7nothrow) #2
  %5 = icmp eq ptr %4, null
  store i1 false, ptr %3, align 1
  br i1 %5, label %8, label %6

6:                                                ; preds = %1
  store i1 true, ptr %3, align 1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  call void @_ZN5Catch21TestInvokerAsFunctionC1EPFvvE(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef %7) #3
  br label %8

8:                                                ; preds = %6, %1
  %9 = phi ptr [ %4, %6 ], [ null, %1 ]
  ret ptr %9
}

; Function Attrs: nobuiltin nounwind allocsize(0)
declare noalias noundef ptr @_ZnwmRKSt9nothrow_t(i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) #1

declare void @_ZN5Catch21TestInvokerAsFunctionC1EPFvvE(ptr, ptr)

attributes #0 = { 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 #1 = { nobuiltin nounwind allocsize(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 = { builtin nounwind allocsize(0) }
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++ 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"

%"struct.std::nothrow_t" = type { i8 }

@_ZSt7nothrow = external global %"struct.std::nothrow_t", align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZN5Catch15makeTestInvokerEPFvvE(ptr noundef %0) local_unnamed_addr #0 {
  %2 = tail call noalias noundef dereferenceable_or_null(16) ptr @_ZnwmRKSt9nothrow_t(i64 noundef 16, ptr noundef nonnull align 1 dereferenceable(1) @_ZSt7nothrow) #2
  %3 = icmp eq ptr %2, null
  br i1 %3, label %5, label %4

4:                                                ; preds = %1
  tail call void @_ZN5Catch21TestInvokerAsFunctionC1EPFvvE(ptr noundef nonnull align 8 dereferenceable(16) %2, ptr noundef %0) #3
  br label %5

5:                                                ; preds = %4, %1
  ret ptr %2
}

; Function Attrs: nobuiltin nounwind allocsize(0)
declare noalias noundef ptr @_ZnwmRKSt9nothrow_t(i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #1

declare void @_ZN5Catch21TestInvokerAsFunctionC1EPFvvE(ptr, ptr) local_unnamed_addr

attributes #0 = { 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 #1 = { nobuiltin nounwind allocsize(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 = { builtin nounwind allocsize(0) }
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)"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,InstCombinePass,SROAPass,TailCallElimPass