https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106087
--- Comment #17 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:e0e388998b797da09a8c018f6f94d1358fd4b8f1 commit r12-8627-ge0e388998b797da09a8c018f6f94d1358fd4b8f1 Author: Andrew Pinski <apin...@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. (cherry picked from commit 71e3daa31cfa35ee58e5899cb00767be92227fd2)
