On 03/30/2016 05:23 PM, Christophe Lyon wrote:
On 29 March 2016 at 18:28, Vladimir Makarov <vmaka...@redhat.com> wrote:
The following patch improves the code in 2 out of 3 cases in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68695
The patch uses more accurate costs for the RA cost improvement
optimization after colouring.
The patch was tested and bootstrapped on x86-64. It is hard to create a
test to check the correct code generation. Therefore there is no test. As
the patch changes heuristics, a generated code in some cases will be
different but at least x86-64 tests expecting a specific code are not broken
by the patch.
Committed as rev. 234527
Hi,
I've noticed that after this patch, 2 tests regress (PASS -> FAIL) on arm:
gcc.dg/ira-shrinkwrap-prep-2.c scan-rtl-dump pro_and_epilogue
"Performing shrink-wrapping"
gcc.dg/pr10474.c scan-rtl-dump pro_and_epilogue "Performing shrink-wrapping"
Thanks, Christophe. I am having them too on the today trunk. I'll
investigate this more.
