[Bug rtl-optimization/64151] [5 Regression] r218266 caused many regressions

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64151

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-12-02
     Ever confirmed|0                           |1

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
Revert the reg_class change:

diff --git a/gcc/ira-costs.c b/gcc/ira-costs.c
index 72c00cc..16fd6e8 100644
--- a/gcc/ira-costs.c
+++ b/gcc/ira-costs.c
@@ -1466,7 +1466,7 @@ scan_one_insn (rtx_insn *insn)
         && REG_N_SETS (REGNO (SET_DEST (set))) == 1))
       && general_operand (SET_SRC (set), GET_MODE (SET_SRC (set))))
     {
-      enum reg_class cl = ALL_REGS;
+      enum reg_class cl = GENERAL_REGS;
       rtx reg = SET_DEST (set);
       int num = COST_INDEX (REGNO (reg));

fixes those regressions.