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[Bug rtl-optimization/63156] web can't handle AUTOINC correctly
- From: "carrot at google dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 07 Sep 2014 02:45:39 +0000
- Subject: [Bug rtl-optimization/63156] web can't handle AUTOINC correctly
- Auto-submitted: auto-generated
- References: <bug-63156-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63156
--- Comment #8 from Carrot <carrot at google dot com> ---
(In reply to Steven Bosscher from comment #7)
> (In reply to Carrot from comment #6)
> > Since it is intentionally to remove flag DF_REF_READ_WRITE on use,
>
> Ah, but I don't think that was the correct fix. The DEF and USE refs should
> both have the flag set.
I agree it's more reasonable to set DF_REF_READ_WRITE flag on both use and def,
it means we need to revert r125736 and reopen bug 32339.