* [PATCH] Add default bitmap obstack allocation check
@ 2024-05-03 11:26 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2024-05-03 11:26 UTC (permalink / raw)
To: gcc-patches
The following adds a check that the global bitmap obstack is initialized
when allocating a bitmap from it.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
* bitmap.cc (bitmap_alloc): When using the global bitmap obstack
assert that is initialized.
---
gcc/bitmap.cc | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/gcc/bitmap.cc b/gcc/bitmap.cc
index 459e32c1ad1..0905cde696f 100644
--- a/gcc/bitmap.cc
+++ b/gcc/bitmap.cc
@@ -781,7 +781,10 @@ bitmap_alloc (bitmap_obstack *bit_obstack MEM_STAT_DECL)
bitmap map;
if (!bit_obstack)
- bit_obstack = &bitmap_default_obstack;
+ {
+ gcc_assert (bitmap_default_obstack_depth > 0);
+ bit_obstack = &bitmap_default_obstack;
+ }
map = bit_obstack->heads;
if (map)
bit_obstack->heads = (class bitmap_head *) map->first;
--
2.35.3
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