[PATCH] Add a new pattern in 4-insn combine
HAO CHEN GUI
guihaoc@linux.ibm.com
Fri Dec 11 02:14:23 GMT 2020
Segher,
Gentle ping this:
https://gcc.gnu.org/pipermail/gcc-patches/2020-November/560573.html
On 30/11/2020 上午 11:08, HAO CHEN GUI wrote:
> Hi,
>
> This patch adds a new pattern(combine 4 insns to 3 insns) in 4-insn
> combine. In the patch, newpat is split twice. The newpat, newi2pat and
> newi1pat replace i3, i2 and i1 respectively. The 4 to 3 combine is
> done at the end where all former attempts fail. In 4 insn combine
> pre-check, the zero and sign extend are added as the patch is for the
> issue 1 listed in pr65010.
>
> The attachments are the patch diff file and change log file.
>
> Bootstrapped and tested on powerpc64le, ARM and x86 with no
> regressions. Is this okay for trunk? Any recommendations? Thanks a lot.
>
More information about the Gcc-patches
mailing list