Backport patches that are either bug fixes or make reasonably significant performance impact for latest AMD/Intel hardware

harsha.jagasia@amd.com harsha.jagasia@amd.com
Mon Jun 20 19:20:00 GMT 2011


Is it ok to backport patches, with Changelogs below, already in trunk to gcc
4.6? These patches are significant enough bugs fror recent AMD and Intel
hardware. If ok and unless the individual authors want to backport, I will
post backported patches for commit approval.

[PATCH] Handle misaligned TFmode load/store.
gcc/
2011-05-30  H.J. Lu  <hongjiu.lu@intel.com>
	PR target/49168
	* config/i386/i386.md (*movtf_internal): Handle misaligned
	load/store.
gcc/testsuite/
2011-05-30  H.J. Lu  <hongjiu.lu@intel.com>
	PR target/49168
	 * gcc.target/i386/pr49168-1.c: New.

[PATCH] Fix FMA cost computation
2011-05-31  Alexandre Oliva  <aoliva@redhat.com>
	* config/i386/i386.c (ix86_rtx_costs): Drop NEG from sub for FMA.
	* config/i386/sse.md: Add n to negated FMA pattern names.




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