[Bug tree-optimization/106087] [12/13 Regression] ICE with inline-asm with multiple output and assigned only static vars
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Sat Jul 9 01:27:27 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106087
--- Comment #15 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Andrew Pinski <pinskia@gcc.gnu.org>:
https://gcc.gnu.org/g:71e3daa31cfa35ee58e5899cb00767be92227fd2
commit r13-1581-g71e3daa31cfa35ee58e5899cb00767be92227fd2
Author: Andrew Pinski <apinski@marvell.com>
Date: Thu Jul 7 22:06:19 2022 +0000
Fix tree-opt/PR106087: ICE with inline-asm with multiple output and
assigned only static vars
The problem here is that when we mark the ssa name that was referenced in
the now removed
dead store (to a write only static variable), the inline-asm would also be
removed
even though it was defining another ssa name. This fixes the problem by
checking
to make sure that the statement was only defining one ssa name.
Committed as approved after a bootstrapped and tested on x86_64 with no
regressions.
PR tree-optimization/106087
gcc/ChangeLog:
* tree-ssa-dce.cc (simple_dce_from_worklist): Check
to make sure the statement is only defining one operand.
gcc/testsuite/ChangeLog:
* gcc.c-torture/compile/inline-asm-1.c: New test.
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