r279900 - in /trunk/gcc: ChangeLog config/aarch...

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Mon Jan  6 13:01:48 2020
New Revision: 279900

URL: https://gcc.gnu.org/viewcvs?rev=279900&root=gcc&view=rev
Log:
[AArch64] Use move-if-change for aarch64-tune.md

If aarch64-tune.md was older than gentune.sh or aarch64-cores.def,
we'd try to overwrite it even if the current contents were correct.
This could cause problems with read-only source directories and
could cause spurious copying for rsync --archive.

2020-01-06  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/t-aarch64 ($(srcdir)/config/aarch64/aarch64-tune.md):
	Depend on...
	(s-aarch64-tune-md): ...this new stamp file.  Pipe the new contents
	to a temporary file and use move-if-change to update the real
	file where necessary.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/aarch64/t-aarch64