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[libcxx] Use newest supported language dialect when running the test suite.

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Summary:
Currently the test suite defaults to C++11 mode if no standard version is supplied to LIT using `--param=std=c++XX`.  This patch changes that behavior so that the newest possible dialect is selected instead.

I have already patched the C++11 bot to explicitly specify `--param=std=c++11`. I'm just putting this up for review to see if anybody objects to this idea.

Reviewers: mclow.lists, jroelofs, danalbert

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D13331

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@249226 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier 2015-10-03 02:32:23 +00:00
parent 423ca20f24
commit e3898a2187
1 changed files with 14 additions and 1 deletions
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15
test/libcxx/test/config.py
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@ -344,7 +344,20 @@ class Configuration(object):
# Try and get the std version from the command line. Fall back to # Try and get the std version from the command line. Fall back to
# default given in lit.site.cfg is not present. If default is not # default given in lit.site.cfg is not present. If default is not
# present then force c++11. # present then force c++11.
std = self.get_lit_conf('std', 'c++11') std = self.get_lit_conf('std')
if not std:
# Choose the newest possible language dialect if none is given.
possible_stds = ['c++1z', 'c++14', 'c++11', 'c++03']
for s in possible_stds:
if self.cxx.hasCompileFlag('-std=%s' % s):
std = s
self.lit_config.note(
'inferred language dialect as: %s' % std)
break
if not std:
self.lit_config.fatal(
'Failed to infer a supported language dialect from one of %r'
% possible_stds)
self.cxx.compile_flags += ['-std={0}'.format(std)] self.cxx.compile_flags += ['-std={0}'.format(std)]
self.config.available_features.add(std) self.config.available_features.add(std)
# Configure include paths # Configure include paths