https://gcc.gnu.org/g:d76df699b8ff792575e9df4d214c21fed0ed3b6b
commit r14-9855-gd76df699b8ff792575e9df4d214c21fed0ed3b6b
Author: Richard Biener <rguent...@suse.de>
Date: Mon Apr 8 10:50:18 2024 +0200
middle-end/114604 - ranger allocates bitmap without initialized obstack
The following fixes ranger bitmap allocation when invoked from IPA
context where the global bitmap obstack possibly isn't initialized.
Instead of trying to use one of the ranger obstacks the following
simply initializes the global bitmap obstack around an active ranger.
PR middle-end/114604
* gimple-range.cc (enable_ranger): Initialize the global
bitmap obstack.
(disable_ranger): Release it.
Diff:
---
gcc/gimple-range.cc | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/gcc/gimple-range.cc b/gcc/gimple-range.cc
index c16b776c1e3..4d3b1ce8588 100644
--- a/gcc/gimple-range.cc
+++ b/gcc/gimple-range.cc
@@ -689,6 +689,8 @@ enable_ranger (struct function *fun, bool use_imm_uses)
{
gimple_ranger *r;
+ bitmap_obstack_initialize (NULL);
+
gcc_checking_assert (!fun->x_range_query);
r = new gimple_ranger (use_imm_uses);
fun->x_range_query = r;
@@ -705,6 +707,8 @@ disable_ranger (struct function *fun)
gcc_checking_assert (fun->x_range_query);
delete fun->x_range_query;
fun->x_range_query = NULL;
+
+ bitmap_obstack_release (NULL);
}
// ------------------------------------------------------------------------
