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gcc.gnu.org Git - gcc.git/commit
rtl-optimization/93946 - fix TBAA for redundant store removal in CSE
It turns out RTL CSE tries to remove redundant stores but fails to
do the usual validity check what such a change is TBAA neutral to
later loads.
This now triggers with the PR93946 testcases on nios2.
2020-04-08 Richard Biener <rguenther@suse.de>
PR rtl-optimization/93946
* cse.c (cse_insn): Record the tabled expression in
src_related. Verify a redundant store removal is valid.
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