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.
