https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100513
--- Comment #27 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:37d845ac59b26e0beb97e7d0d138cb9995d6ada2 commit r10-9922-g37d845ac59b26e0beb97e7d0d138cb9995d6ada2 Author: Richard Biener <rguent...@suse.de> Date: Tue May 11 13:23:45 2021 +0200 ipa/100513 - fix SSA_NAME_DEF_STMT corruption in IPA param manip This fixes unintended clobbering of SSA_NAME_DEF_STMT of the cloned/inlined from SSA name during IPA parameter manipulation of call stmt LHSs. gimple_call_set_lhs adjusts SSA_NAME_DEF_STMT of the lhs to the stmt being modified but when ipa_param_body_adjustments::modify_call_stmt is called the cloning/inlining process has not yet remapped the stmts operands to the copy variants but they are still original. 2021-05-11 Richard Biener <rguent...@suse.de> PR ipa/100513 * ipa-param-manipulation.c (ipa_param_body_adjustments::modify_call_stmt): Avoid altering SSA_NAME_DEF_STMT by adjusting the calls LHS via gimple_call_lhs_ptr. (cherry picked from commit 7e0fe7761da9255c9342788956c37b426875d872)
