tree 4bc1ebf3cea9fe211e98046ff54e680312d0e39b
parent 39ad0f03d53c3aae5ea8c6d0572fd63154d40e99
author Chandler Carruth <chandlerc@gmail.com> 1353541223 +0000
committer Chandler Carruth <chandlerc@gmail.com> 1353541223 +0000

Fix the '-fuse-init-array' option to actually be an option.

Previously, this flag to CC1 was never exposed at the clang driver
layer, and if you happened to enable it (by being on Android or GCC 4.7
platform), you couldn't *disable* it, because there was no 'no' variant.
The whole thing was confusingly implemented.

Now, the target-specific flag processing gets the driver arg list, and
we use standard hasFlag with a default based on the GCC version and/or
Android platform. The user can still pass the 'no-' variant to forcibly
disable the flag, or pass the positive variant to clang itself to enable
the flag.

The test has also been substantially cleaned up and extended to cover
these use cases.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168473 91177308-0d34-0410-b5e6-96231b3b80d8