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[Bug target/14552] compiled trivial vector intrinsic code is inefficient
- From: "michaelni at gmx dot at" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 20 Mar 2008 01:37:07 -0000
- Subject: [Bug target/14552] compiled trivial vector intrinsic code is inefficient
- References: <bug-14552-4523@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #33 from michaelni at gmx dot at 2008-03-20 01:37 -------
Subject: Re: compiled trivial vector intrinsic code is
inefficient
On Wed, Mar 19, 2008 at 11:39:18PM -0000, uros at gcc dot gnu dot org wrote:
>
>
> ------- Comment #26 from uros at gcc dot gnu dot org 2008-03-19 23:39 -------
> Subject: Bug 14552
[...]
> * gcc.target/i386/pr14552.c: New test.
>
>
> Added:
> trunk/gcc/testsuite/gcc.target/i386/pr14552.c
Thanks, i was already scared that the inverse proportional relation between
version number and performance which was so nicely followed since 2.95
would stop.
Adding a test to the testsuit to ensure that mmx intrinsics dont use
mmx registers is well, just brilliant.
Iam already eagerly awaiting the testcase which will check that floating
point code doesnt use the FPU, i assume that will happen in gcc 5.0?
Anyway iam glad ffmpeg compiles fine under icc.
[...]
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14552