[Bug target/40934] [4.5 Regression] ICE in get_hard_regnum, at reg-stack.c:741

Sun Aug 2 00:15:00 GMT 2009

------- Comment #11 from bonzini at gnu dot org  2009-08-02 00:15 -------
This is the simplest patch that can possibly work:

Index: ../../gcc/config/i386/i386.c
===================================================================

--- ../../gcc/config/i386/i386.c        (revision 150334)
+++ ../../gcc/config/i386/i386.c        (working copy)
@@ -14619,7 +14619,7 @@ ix86_fp_comparison_strategy (enum rtx_co
   if (TARGET_CMOVE)
     return IX86_FPCMP_COMI;

-  if (TARGET_SAHF && (TARGET_USE_SAHF || optimize_insn_for_size_p ()))
+  if (TARGET_SAHF && (TARGET_USE_SAHF || optimize_function_for_size_p (cfun)))
     return IX86_FPCMP_SAHF;

   return IX86_FPCMP_ARITH;


I'm not sure if there is another patch that can work. :-)

Uros, do you think it's fine?  I don't think that non-hot FP jumps are that
common.  Definitely in the minimized testcase it's not a great prediction...


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40934

