Re: [PATCH v2 0/7] LoongArch: Fix and tweak vec_perm expander

[Lulu Cheng]

在 2025/11/17 下午4:44, Xi Ruoyao 写道:

The 1st patch superseds [v1].  More tweaks to vec_perm follow.

Bootstrapped and regtested on loongarch64-linux-gnu.  Ok for trunk?  And
is the 1st one ok for releases/gcc-{15,14}?

LGTM.

Thanks!

[v1]:https://gcc.gnu.org/pipermail/gcc-patches/2025-November/700812.html

*** BLURB HERE ***

Xi Ruoyao (7):
   LoongArch: Fix wrong code from loongarch_expand_vec_perm_1 [PR 122695]
   LoongArch: Avoid memory load when use xvperm.w for vec_permv4di
   LoongArch: NFC: Simplify vec_permv8sf logic
   LoongArch: NFC: Move [x]vshuf.* to simd.md
   LoongArch: Micro-optimize the blend step for vec_perm<LASX>
   LoongArch: NFC: Simplify logic of vec_perm{v32qi,v16hi}
   LoongArch: NFC: Drop loongarch_expand_vec_perm

  gcc/config/loongarch/lasx.md                  |  36 +--
  gcc/config/loongarch/loongarch-protos.h       |   1 -
  gcc/config/loongarch/loongarch.cc             | 269 ++++--------------
  gcc/config/loongarch/lsx.md                   |  54 +---
  gcc/config/loongarch/simd.md                  |  75 ++++-
  .../gcc.target/loongarch/pr122695-1.c         |  22 ++
  .../gcc.target/loongarch/pr122695-2.c         |  22 ++
  7 files changed, 188 insertions(+), 291 deletions(-)
  create mode 100644 gcc/testsuite/gcc.target/loongarch/pr122695-1.c
  create mode 100644 gcc/testsuite/gcc.target/loongarch/pr122695-2.c