On Tue, Sep 3, 2013 at 12:01 PM, Eric Botcazou <ebotca...@adacore.com> wrote:
>> Changes were checked into trunk:
>> http://gcc.gnu.org/ml/gcc-cvs/2013-07/msg00179.html
>
> The patch miscompiles the MPFR library on x86 Pentium Pro. Reduced testcase
> attached, compile for x86 with -mtune=pentiumpro.
>
The change in question has
@@ -23169,7 +23150,7 @@ ix86_expand_movmem (rtx dst, rtx src, rtx
count_exp, rtx align_exp,
if (count_exp != const0_rtx && epilogue_size_needed > 1)
expand_movmem_epilogue (dst, src, destreg, srcreg, count_exp,
- epilogue_size_needed);
+ size_needed);
if (jump_around_label)
emit_label (jump_around_label);
return true;
Michael, why did you change epilogue_size_needed to size_needed
here? It looks wrong to me.
--
H.J.
