[all-commits] [llvm/llvm-project] 00e65f: [LoopVectorize][SVE] Fix crash when vectorising FP...

[david-arm via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 00e65f3345460f25fa1ba87eee5b62877b919a50
      https://github.com/llvm/llvm-project/commit/00e65f3345460f25fa1ba87eee5b62877b919a50
  Author: David Sherwood <david.sherwood at arm.com>
  Date:   2021-04-28 (Wed, 28 Apr 2021)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-basic-vec.ll

  Log Message:
  -----------
  [LoopVectorize][SVE] Fix crash when vectorising FP negation

This patch fixes a crash encountered when vectorising the following loop:

 void foo(float *dst, float *src, long long n) {
   for (long long i = 0; i < n; i++)
     dst[i] = -src[i];
 }

using scalable vectors. I've added a test to

 Transforms/LoopVectorize/AArch64/sve-basic-vec.ll

as well as cleaned up the other tests in the same file.

Differential Revision: https://reviews.llvm.org/D98054