commit a7f1b00ed69810ce7f000d385a60e148d0228d48
author Richard Biener <rguenther@suse.de> Wed Jul 24 13:16:35 2024 +0200
committer Richard Biener <rguenth@gcc.gnu.org> Mon Jul 29 15:39:16 2024 +0200
tree 2c677b483660043438823a9faa88eaf4e3f6683f
parent 61cb0c889e1f9a9f4ea5b22bbe089a906410374a

tree-optimization/116057 - wrong code with CCP and vector CTORs

The following fixes an issue with CCPs likely_value when faced with
a vector CTOR containing undef SSA names and constants.  This should
be classified as CONSTANT and not UNDEFINED.

	PR tree-optimization/116057
	* tree-ssa-ccp.cc (likely_value): Also walk CTORs in stmt
	operands to look for constants.

	* gcc.dg/torture/pr116057.c: New testcase.

(cherry picked from commit 1ea551514b9c285d801ac5ab8d78b22483ff65af)