tree 648ba04cb2a2c0a6b0e04f4496868594629a7bd4
parent 81d8a3f1e37cac0f721e3896ffd33c6bba8efeec
author Andrzej Warzynski <andrzej.warzynski@arm.com> 1611665652 +0000
committer Copybara-Service <copybara-worker@google.com> 1611865953 -0800

Revert "[flang] Search for #include "file" in right directory"

This reverts commit d987b61b1dce9948801ac37704477e7c257100b1.

As pointed out in https://reviews.llvm.org/D95388, the reverted commit
causes build failures in the following Flang buildbots:
  * http://lab.llvm.org:8011/#/builders/32/builds/2642
  * http://lab.llvm.org:8011/#/builders/33/builds/2131
  * http://lab.llvm.org:8011/#/builders/135/builds/1473
  * http://lab.llvm.org:8011/#/builders/66/builds/1559
  * http://lab.llvm.org:8011/#/builders/134/builds/1409
  * http://lab.llvm.org:8011/#/builders/132/builds/1817
I'm guessing that the patch was only tested with
`FLANG_BUILD_NEW_DRIVER=Off` (i.e. the default). The builders listed
above set `FLANG_BUILD_NEW_DRIVER` to `On`.

Although fixing the build is relatively easy, the reverted patch
modifies the behaviour of the frontend, which breaks driver tests. In
particular, in https://reviews.llvm.org/D93453 support for `-I` was
added that depends on the current behaviour. The reverted patch
changes that behaviour. Either the tests have to be updated or the
change fine-tuned.

GitOrigin-RevId: e878589098c2ed510159e67d9c6c5e0f3dfbf5a6