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Teach test suite about C++2a dialect flag.

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This patch teaches the test suite configuration about the -std=c++2a
flag. And, since it's the newest dialect, change the test suite to
choose it, if possible, by default.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@317611 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2017-11-07 20:26:23 +00:00
parent 6efb1c19a7
commit 7e73ea873f
2 changed files with 4 additions and 3 deletions
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2
docs/TestingLibcxx.rst
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@@ -112,7 +112,7 @@ configuration. Passing the option on the command line will override the default.
.. option:: std=<standard version> .. option:: std=<standard version>
**Values**: c++98, c++03, c++11, c++14, c++17 **Values**: c++98, c++03, c++11, c++14, c++17, c++2a
Change the standard version used when building the tests. Change the standard version used when building the tests.

5
utils/libcxx/test/config.py
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@@ -517,7 +517,8 @@ class Configuration(object):
std = self.get_lit_conf('std') std = self.get_lit_conf('std')
if not std: if not std:
# Choose the newest possible language dialect if none is given. # Choose the newest possible language dialect if none is given.
possible_stds = ['c++17', 'c++1z', 'c++14', 'c++11', 'c++03'] possible_stds = ['c++2a', 'c++17', 'c++1z', 'c++14', 'c++11',
'c++03']
if self.cxx.type == 'gcc': if self.cxx.type == 'gcc':
maj_v, _, _ = self.cxx.version maj_v, _, _ = self.cxx.version
maj_v = int(maj_v) maj_v = int(maj_v)
@@ -888,7 +889,7 @@ class Configuration(object):
# Turn on warnings by default for Clang based compilers when C++ >= 11 # Turn on warnings by default for Clang based compilers when C++ >= 11
default_enable_warnings = self.cxx.type in ['clang', 'apple-clang'] \ default_enable_warnings = self.cxx.type in ['clang', 'apple-clang'] \
and len(self.config.available_features.intersection( and len(self.config.available_features.intersection(
['c++11', 'c++14', 'c++17'])) != 0 ['c++11', 'c++14', 'c++17', 'c++2a'])) != 0
enable_warnings = self.get_lit_bool('enable_warnings', enable_warnings = self.get_lit_bool('enable_warnings',
default_enable_warnings) default_enable_warnings)
self.cxx.useWarnings(enable_warnings) self.cxx.useWarnings(enable_warnings)