[PATCH] D105806: [LV] Print remark when loop cannot be vectorized due to invalid costs.

[Ilya Leoshkevich via Phabricator via llvm-commits]

iii added a comment.

llvm-clang-x86_64-expensive-checks-debian (https://lab.llvm.org/buildbot/#/builders/16/builds/13741) fails with:

  <<<<<<
              1: remark: <unknown>:0:0: UserVF ignored because of invalid costs. 
              2: remark: t.c:3:10: Instruction with invalid costs prevented vectorization at VF=(vscale x 1): load 
  next:102'0                                                                                                      X error: no match found
              3: remark: t.c:3:20: Instruction with invalid costs prevented vectorization at VF=(vscale x 1): call to llvm.sin.f32 
  next:102'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  next:102'1             ?                                                                                                          possible intended match

The bot attributed this to my changes (https://reviews.llvm.org/D105629), but they have nothing to do with aarch64 or vectorization, and this test passes locally for me.

@sdesmalen could you take a look please?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D105806/new/

https://reviews.llvm.org/D105806