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[Bug target/49781] [x32] Unnecessary lea in x32 mode
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 09 Aug 2011 18:59:46 +0000
- Subject: [Bug target/49781] [x32] Unnecessary lea in x32 mode
- Auto-submitted: auto-generated
- References: <bug-49781-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49781
--- Comment #41 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-09 18:59:46 UTC ---
(In reply to comment #39)
> Created attachment 24967 [details]
> Patch that recognizes addresses, zero-extended with AND
>
> Attached patch adds recognision of addresses, zero-extended with AND.
>
> The patch fixes gcc-target/i386/pr43766.c testcase.
>
> H.J., can you please test it on x32 ?
It seems to generate more leal for gcc.dg/torture/pr47744-2.c
compiled with
-mx32 -O3 -std=gnu99 -ftree-vectorize -funroll-loops