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unswitch: Fix up one unguarded fprintf (dump_file, ...) [PR123736]

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This dump message is not guarded on dump_file being non-NULL, so crashes
inside of libc if dump_file is NULL.

I think a message like that is usually guarded not just on dump_file
being non-NULL, but also on TDF_DETAILS set in dump_flags.

2026-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/123736
	* tree-ssa-loop-unswitch.cc (hoist_guard): Guard dump message
	on dump_file && (dump_flags & TDF_DETAILS) condition.
This commit is contained in:
Jakub Jelinek
2026-01-22 10:11:34 +01:00
committed by Jakub Jelinek
parent 41878c161c
commit 613fef9239
1 changed files with 2 additions and 1 deletions
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3
gcc/tree-ssa-loop-unswitch.cc
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@@ -1459,7 +1459,8 @@ hoist_guard (class loop *loop, edge guard)
if (skip_count > e->count ())
{
fprintf (dump_file, " Capping count; expect profile inconsistency\n");
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, " Capping count; expect profile inconsistency\n");
skip_count = e->count ();
}
if (dump_enabled_p ())