message: Replace usage of std::vector with array in LLVMShuffleVectors
diff: @@ -1617,12 +1617,12 @@ llvm::Value *LLVMConcatVectors(llvm::Value *v1, llvm::Value *v2, llvm::Instructi
  result element. */
  llvm::Value *LLVMShuffleVectors(llvm::Value *v1, llvm::Value *v2, int32_t shuf[], int shufSize,
  llvm::Instruction *insertBefore) {
  - std::vector<llvm::Constant *> shufVec;
  + llvm::Constant *shufVec[ISPC_MAX_NVEC];
  for (int i = 0; i < shufSize; ++i) {
  if (shuf[i] == -1)
  - shufVec.push_back(llvm::UndefValue::get(LLVMTypes::Int32Type));
  + shufVec[i] = llvm::UndefValue::get(LLVMTypes::Int32Type);
  else
  - shufVec.push_back(LLVMInt32(shuf[i]));
  + shufVec[i] = LLVMInt32(shuf[i]);
  }
  llvm::ArrayRef<llvm::Constant *> aref(&shufVec[0], &shufVec[shufSize]);
  