On Wed, Aug 18, 2021 at 11:24 AM Hongtao Liu wrote:
>
> On Tue, Aug 17, 2021 at 10:43 PM Richard Biener via Gcc-patches
> wrote:
> >
> > On Tue, Aug 17, 2021 at 3:29 PM Richard Biener via Gcc-patches
> > wrote:
> > >
> > > This is an attempt to start moving the x86 backend to use
> > > standard
On Tue, Aug 17, 2021 at 5:06 PM liuhongt wrote:
>
> Hi:
> This patch add a new x86 tune named X86_TUNE_V2DF_REDUCTION_PREFER_HADDPD
> to enable haddpd for v2df vector reduction, the tune is disabled by default.
>
> Bootstrapped and regtested on x86_64-linux-gnu{-m32,}
> Ok for trunk?
>
Pushe
OK I have polished off my code in light of previous discussion and will
submit it in follow-up emails.
As mentioned before, this patch series is on top of the
non-behavior-changing cleanup I previously submitted in
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/576725.html
The first patch
This means, we might search for:
- path/$machine/$version/prog
- path/$machine/prog
- path/$machine-prog
But not
- path/$machine/$version/$machine-prog
because disambiguating $machine twice is unnecessary.
This does mean we less liberal in what we accept than LLVM, but that's
OK. The down side
This matches the behavior of Clang, and makes it easier to work with
cross compilers without heeding to hard-code paths at build time.
---
gcc/gcc.c | 78 ---
1 file changed, 68 insertions(+), 10 deletions(-)
diff --git a/gcc/gcc.c b/gcc/gcc.c
i
We will use this in the subsequent diff to control what basenames we
search for. In machine-specific subdirectories, we should just look for
the original basename, but in machine-agnostic subdirectories, we might
additionally look for prefixed disambiguated names, as an alternate
method of keeping
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