r275871 - in /trunk/gcc: ChangeLog tree-ssa-ccp.c

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Wed Sep 18 09:44:06 2019
New Revision: 275871

URL: https://gcc.gnu.org/viewcvs?rev=275871&root=gcc&view=rev
Log:
Make get_value_for_expr check for INTEGER_CSTs

CONSTANT lattice values are symbolic constants rather than
compile-time constants, so among other things can be POLY_INT_CSTs.
This patch fixes a case in which we assumed all CONSTANTs were either
ADDR_EXPRs or INTEGER_CSTs.

This is tested by later SVE patches.

2019-09-18  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-ssa-ccp.c (get_value_for_expr): Check whether CONSTANTs
	are INTEGER_CSTs.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-ccp.c