2010-06-30 Richard Guenther <rguenther@suse.de>

	PR target/44722
	* config/i386/i386.md (peephole2 for fix:SSEMODEI24): Guard
	against oscillation with reverse peephole2.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161597 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4d3dd57..20716b5 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2010-06-30  Richard Guenther  <rguenther@suse.de>
+
+       PR target/44722
+       * config/i386/i386.md (peephole2 for fix:SSEMODEI24): Guard
+       against oscillation with reverse peephole2.
+
 2010-06-30  H.J. Lu  <hongjiu.lu@intel.com>
 
        PR target/44721

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index c450c38..e361fd7 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -4729,6 +4729,7 @@
    (set (match_operand:SSEMODEI24 2 "register_operand" "")
        (fix:SSEMODEI24 (match_dup 0)))]
   "TARGET_SHORTEN_X87_SSE
+   && !(TARGET_AVOID_VECTOR_DECODE && optimize_insn_for_speed_p ())
    && peep2_reg_dead_p (2, operands[0])"
   [(set (match_dup 2) (fix:SSEMODEI24 (match_dup 1)))]
   "")