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Re: [testsuite] vect effective targets should use arm_neon_ok
- From: Janis Johnson <janis_johnson at mentor dot com>
- To: <gcc-patches at gcc dot gnu dot org>
- Date: Tue, 18 Sep 2012 13:59:03 -0700
- Subject: Re: [testsuite] vect effective targets should use arm_neon_ok
- References: <5058D171.9020901@mentor.com>
- Reply-to: <janisjo at codesourcery dot com>
On 09/18/2012 12:54 PM, Janis Johnson wrote:
> In most cases a test that requires ARM NEON should use effective target
> arm_neon, which means that flags run for all tests include NEON support.
> The result is cached the first time it is checked for a multilib.
>
> Vectorization tests, when run for ARM, add flags to support NEON if it's
> OK to do so, but those flags are not reflected in the cached results for
> arm_neon, nor should they be. Because of this, vect effective-target
> checks should use arm_neon_ok (as most already do) instead of arm_neon.
>
> This patch changes the checks for 7 effective targets, allowing more
> tests to run and decreasing the number of failures. The only new
> failures I've seen in tests on arm-none-eabi with a variety of test
> multilibs are for big-endian with vect_multiple_sizes, which means
> that vect_multiple_sizes should be false for big endian or that there's
> a bug in ARM big-endian support.
Oops, I got that wrong. There are other effective-targets that might
need arm_little_endian, but not vect_multiple_sizes. I'll file a PR
when I have better information.
> Checked in on trunk as obvious. I'll backport to 4.6 when it's open.
>
> Janis