Function parse_exceptions

llvm_util/llvm2alive.cpp:53–63

}

FpExceptionMode parse_exceptions(llvm::Instruction &i) {
  auto *fp = dyn_cast<llvm::ConstrainedFPIntrinsic>(&i);
  if (!fp || !fp->getExceptionBehavior().has_value())
    return {};
  switch (*fp->getExceptionBehavior()) {
  case llvm::fp::ebIgnore:  return FpExceptionMode::Ignore;
  case llvm::fp::ebMayTrap: return FpExceptionMode::MayTrap;
  case llvm::fp::ebStrict:  return FpExceptionMode::Strict;
  default: UNREACHABLE();
  }
}

FCmp::Cond parse_fcmp_cond(llvm::FCmpInst::Predicate pred) {
  FCmp::Cond cond;