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* [gcc r13-2639] tree-optimization/106913 - ICE with -da and -Wuninitialized
@ 2022-09-13 8:52 Richard Biener
0 siblings, 0 replies; only message in thread
From: Richard Biener @ 2022-09-13 8:52 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:ad08894ea02b6308c4ed4e8cd8e6a564c2f581e8
commit r13-2639-gad08894ea02b6308c4ed4e8cd8e6a564c2f581e8
Author: Richard Biener <rguenther@suse.de>
Date: Tue Sep 13 08:46:51 2022 +0200
tree-optimization/106913 - ICE with -da and -Wuninitialized
The following avoids setting and not clearing an auto_bb_flag
on EXIT_BLOCK which we don't verify for such stale flags but
dump_bb_info still asserts on them.
PR tree-optimization/106913
* tree-ssa-uninit.cc (warn_uninitialized_vars): Do not set
ft_reachable on EXIT_BLOCK.
Diff:
---
gcc/tree-ssa-uninit.cc | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/gcc/tree-ssa-uninit.cc b/gcc/tree-ssa-uninit.cc
index 4a1c333d9cb..eae29f88f9d 100644
--- a/gcc/tree-ssa-uninit.cc
+++ b/gcc/tree-ssa-uninit.cc
@@ -1013,11 +1013,9 @@ warn_uninitialized_vars (bool wmaybe_uninit)
if (ee)
bb = ee->dest;
else
- {
- bb = get_immediate_dominator (CDI_POST_DOMINATORS, bb);
- if (!bb || bb->index == EXIT_BLOCK)
- break;
- }
+ bb = get_immediate_dominator (CDI_POST_DOMINATORS, bb);
+ if (!bb || bb->index == EXIT_BLOCK)
+ break;
}
FOR_EACH_BB_FN (bb, cfun)
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