[llvm-commits] [PATCH] Two minor LNT improvements

[Tobias Grosser]

Hi,

I like to commit those to changes to LNT:

* LNT: verify that --cc (and --cxx if provided) are valid paths


* LNT: Do not require the gcc extras string to be empty

Instead detect any gcc that is not an llvm-gcc. The case that triggered
this bug was a gcc with the following version string:
gcc (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5
It was not detected as a supported compiler, as cc_extra was ' ' instead
of the required ''. Now everything is allowed in cc_extra, just llvm-gcc
is filtered out and handled separately.

Patches attached. OK to commit?

Cheers
Tobi
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