r220923 - in /trunk/gcc: ChangeLog config/xtens...

[jcmvbkbc@gcc.gnu.org]

Author: jcmvbkbc
Date: Mon Feb 23 23:35:31 2015
New Revision: 220923

URL: https://gcc.gnu.org/viewcvs?rev=220923&root=gcc&view=rev
Log:
xtensa: align data naturally when optimizing for size

gcc for xtensa always aligns data at least to a word boundary, even when
it has smaller natural alignment. This results in unexpectedly high data
section sizes and unreasonable amount of wasted space when linking
objects compiled with -fdata-sections flag.

Align data naturally when optimization for size is enabled.

2015-02-22  Max Filippov  <jcmvbkbc@gmail.com>

gcc/
	* config/xtensa/xtensa.h (CONSTANT_ALIGNMENT, DATA_ALIGNMENT):
	use natural alignment when optimizing for size.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/xtensa/xtensa.h