[Bug rtl-optimization/42216] [4.5 Regression] changes in scheduling regress 464.h264ref 20%

rguenth at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Mon Mar 8 11:48:00 GMT 2010



------- Comment #22 from rguenth at gcc dot gnu dot org  2010-03-08 11:48 -------
All is bad again after the fix for PR42220:

2010-03-07  Bernd Schmidt  <bernd.schmidt@analog.com>

        PR rtl-optimization/42220
        * regrename.c (scan_rtx) <case STRICT_LOW_PART, ZERO_EXTRACT>:
        Use verify_reg_tracked to determine if we should use OP_OUT rather
        than OP_INOUT.
        (build_def_use): If we see an in-out operand for a register that we
        know nothing about, treat is an output if possible, fail the block if
        not.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42216



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