}
void SourceFile::ReadFile() {
- if (buf_->getBuffer().size() == 0) {
- Close();
- buf_ = llvm::WritableMemoryBuffer::getNewUninitMemBuffer(1);
- buf_->getBuffer()[0] = '\n';
- }
buf_end_ = RemoveCarriageReturns(buf_->getBuffer());
+ if (content().size() == 0 || content().back() != '\n') {
+ // Don't bother to copy if we have spare memory
+ if (content().size() >= buf_->getBufferSize()) {
+ auto tmp_buf{llvm::WritableMemoryBuffer::getNewUninitMemBuffer(
+ content().size() + 1)};
+ llvm::copy(content(), tmp_buf->getBufferStart());
+ Close();
+ buf_ = std::move(tmp_buf);
+ }
+ buf_end_++;
+ buf_->getBuffer()[buf_end_ - 1] = '\n';
+ }
IdentifyPayload();
RecordLineStarts();
}
--- /dev/null
+! RUN: echo -n "end program" > %t.f90
+! RUN: %f18 -fparse-only %t.f90
+! RUN: echo -ne "\rend program" > %t.f90
+! RUN: %f18 -fparse-only %t.f90