Hi, Gentle ping this:
https://gcc.gnu.org/pipermail/gcc-patches/2021-May/569792.html BR, Kewen on 2021/5/26 上午11:02, Kewen.Lin via Gcc-patches wrote: > Hi, > > Gentle ping this: > > https://gcc.gnu.org/pipermail/gcc-patches/2021-May/569792.html > > > BR, > Kewen > > on 2021/5/7 上午10:30, Kewen.Lin via Gcc-patches wrote: >> Hi, >> >> For some cases that when we load unsigned char/short values from >> the appropriate unsigned char/short memories and convert them to >> double/single precision floating point value, there would be >> implicit conversions to int first. It makes GCC not leverage the >> P9 instructions lxsibzx/lxsihzx. This patch is to add the related >> define_insn_and_split to support this kind of scenario. >> >> Bootstrapped/regtested on powerpc64le-linux-gnu P9 and >> powerpc64-linux-gnu P8. >> >> Is it ok for trunk? >> >> BR, >> Kewen >> ------ >> gcc/ChangeLog: >> >> * config/rs6000/rs6000.md >> (floatsi<SFDF:mode>2_lfiwax_<QHI:mode>_mem_zext): New >> define_insn_and_split. >> >> gcc/testsuite/ChangeLog: >> >> * gcc.target/powerpc/p9-fpcvt-3.c: New test. >> >
