https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94234
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Feng Xue <f...@gcc.gnu.org>: https://gcc.gnu.org/g:8f0d743c2dee6afae5c6f861b0642b7b112a4a70 commit r11-3207-g8f0d743c2dee6afae5c6f861b0642b7b112a4a70 Author: Feng Xue <f...@os.amperecomputing.com> Date: Mon Aug 17 23:00:35 2020 +0800 tree-optimization/94234 - add plusminus-with-convert pattern Add a rule (T)(A) +- (T)(B) -> (T)(A +- B), which works only when (A +- B) could be folded to a simple value. By this rule, a plusminus-mult-with-convert expression could be handed over to the rule (A * C) +- (B * C) -> (A +- B). 2020-09-15 Feng Xue <f...@os.amperecomputing.com> gcc/ PR tree-optimization/94234 * match.pd (T)(A) +- (T)(B) -> (T)(A +- B): New simplification. gcc/testsuite/ PR tree-optimization/94234 * gcc.dg/pr94234-3.c: New test.
