r251489 - in /trunk/gcc: ChangeLog config/sparc...

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Wed Aug 30 11:14:32 2017
New Revision: 251489

URL: https://gcc.gnu.org/viewcvs?rev=251489&root=gcc&view=rev
Log:
[37/77] Use scalar_int_mode when emitting cstores

cstore patterns always have a scalar integer result, which has the
value 0 for "false" and STORE_FLAG_VALUE for "true".  This patch
makes that explicit using scalar_int_mode.

2017-08-30  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* target.def (cstore_mode): Return a scalar_int_mode.
	* doc/tm.texi: Regenerate.
	* config/sparc/sparc.c (sparc_cstore_mode): Return a scalar_int_mode.
	* targhooks.h (default_cstore_mode): Likewise.
	* targhooks.c (default_cstore_mode): Likewise, using a forced
	conversion.
	* expmed.c (emit_cstore): Expect the target of the cstore to be
	a scalar_int_mode.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/sparc/sparc.c
    trunk/gcc/doc/tm.texi
    trunk/gcc/expmed.c
    trunk/gcc/target.def
    trunk/gcc/targhooks.c
    trunk/gcc/targhooks.h