r245869 - in /trunk/gcc: ChangeLog testsuite/Ch...

[marxin@gcc.gnu.org]

Author: marxin
Date: Fri Mar  3 11:53:56 2017
New Revision: 245869

URL: https://gcc.gnu.org/viewcvs?rev=245869&root=gcc&view=rev
Log:
Add -Wdisabled-optimization to loop prefetching pass (PR tree-optimization/79803).

2017-03-03  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/79803
	* tree-ssa-loop-prefetch.c (tree_ssa_prefetch_arrays): Remove
	assert.
	(pass_loop_prefetch::execute): Disabled optimization if an
	assumption about L1 cache size is not met.
2017-03-03  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/79803
	* gcc.dg/tree-ssa/pr79803.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr79803.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-loop-prefetch.c