Function MemoryAccessNumWords

source/val/validate_memory.cpp:242–248

Returns the number of instruction words taken up by a memory access argument and its implied operands.

// Returns the number of instruction words taken up by a memory access
// argument and its implied operands.
int MemoryAccessNumWords(uint32_t mask) {
  int result = 1;  // Count the mask
  if (mask & uint32_t(spv::MemoryAccessMask::Aligned)) ++result;
  if (mask & uint32_t(spv::MemoryAccessMask::MakePointerAvailableKHR)) ++result;
  if (mask & uint32_t(spv::MemoryAccessMask::MakePointerVisibleKHR)) ++result;
  return result;
}

// Returns the scope ID operand for MakeAvailable memory access with mask
// at the given operand index.