Hi, Gentle ping: https://gcc.gnu.org/pipermail/gcc-patches/2022-February/590959.html
This patch is to fix one regressed test case, I guess it still can be considered for stage 4. BR, Kewen > on 2022/2/28 1:37 PM, Kewen.Lin via Gcc-patches wrote: >> Hi, >> >> As PR103196 shows, p9-vec-length-full-7.c needs to be adjusted as the >> complete unrolling can happen on some of its loops. This patch is to >> use pragma "GCC unroll 0" to disable all possible loop unrollings. >> Hope it can help the case not that fragile. >> >> There are some other p9-vec-length* cases, I noticed that some of them >> use either bigger or unknown loop iteration counts, and >> "p9-vec-length-3*" have considered the effects of complete unrolling. >> So I just leave them alone for now. >> >> Tested on powerpc64-linux-gnu P8 and powerpc64le-linux-gnu P9 and P10. >> >> Is it ok for trunk? >> >> BR, >> Kewen >> ----- >> PR testsuite/103196 >> >> gcc/testsuite/ChangeLog: >> >> * gcc.target/powerpc/p9-vec-length-7.h: Add DO_PRAGMA macro. >> * gcc.target/powerpc/p9-vec-length-epil-7.c: Use unroll pragma to >> disable any unrollings. >> * gcc.target/powerpc/p9-vec-length-full-7.c: Remove useless option. >> * gcc.target/powerpc/p9-vec-length.h: Likewise. > >
