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tests: use -fno-strict-aliasing with variants

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Reported by Théophile Ranquet.

* configure.ac (NO_STRICT_ALIAS_CXXFLAGS): New.
* tests/c++.at, tests/atlocal.in, examples/local.mk: Use it.
This commit is contained in:
Akim Demaille
2012-11-26 10:42:49 +01:00
parent 15a1a08a87
commit 2f130f199a
4 changed files with 10 additions and 1 deletions
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2
configure.ac
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@@ -111,6 +111,8 @@ if test "$enable_gcc_warnings" = yes; then
# Warnings for the test suite only. # Warnings for the test suite only.
gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST]) gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST])
gl_WARN_ADD([-pedantic], [WARN_CXXFLAGS_TEST]) gl_WARN_ADD([-pedantic], [WARN_CXXFLAGS_TEST])
# Variants break strict aliasing analysis.
gl_WARN_ADD([-fno-strict-aliasing], [NO_STRICT_ALIAS_CXXFLAGS])
CXXFLAGS=$save_CXXFLAGS CXXFLAGS=$save_CXXFLAGS
AC_LANG_POP([C++]) AC_LANG_POP([C++])
fi fi

4
examples/local.mk
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@@ -16,6 +16,10 @@
dist_noinst_SCRIPTS = examples/extexi examples/test dist_noinst_SCRIPTS = examples/extexi examples/test
TEST_LOG_COMPILER = $(top_srcdir)/examples/test TEST_LOG_COMPILER = $(top_srcdir)/examples/test
AM_CXXFLAGS = \
$(NO_STRICT_ALIAS_CXXFLAGS) \
$(WARN_CXXFLAGS) $(WARN_CXXFLAGS_TEST) $(WERROR_CXXFLAGS)
## ------------ ## ## ------------ ##
## Extracting. ## ## Extracting. ##
## ------------ ## ## ------------ ##

3
tests/atlocal.in
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@@ -38,6 +38,9 @@ NO_WERROR_CXXFLAGS='@CXXFLAGS@ @WARN_CXXFLAGS@ @WARN_CXXFLAGS_TEST@'
CFLAGS="$NO_WERROR_CFLAGS @WERROR_CFLAGS@" CFLAGS="$NO_WERROR_CFLAGS @WERROR_CFLAGS@"
CXXFLAGS="$NO_WERROR_CXXFLAGS @WERROR_CXXFLAGS@" CXXFLAGS="$NO_WERROR_CXXFLAGS @WERROR_CXXFLAGS@"
# C++ variants break strict aliasing analysis.
NO_STRICT_ALIAS_CXXFLAGS='@NO_STRICT_ALIAS_CXXFLAGS@'
# If 'exit 77'; skip all C++ tests; otherwise ':'. # If 'exit 77'; skip all C++ tests; otherwise ':'.
BISON_CXX_WORKS='@BISON_CXX_WORKS@' BISON_CXX_WORKS='@BISON_CXX_WORKS@'

2
tests/c++.at
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@@ -176,7 +176,7 @@ main ()
]]) ]])
AT_BISON_CHECK([-o list.cc list.yy]) AT_BISON_CHECK([-o list.cc list.yy])
AT_COMPILE_CXX([list]) AT_COMPILE_CXX([list], [$NO_STRICT_ALIAS_CXXFLAGS list.cc])
AT_PARSER_CHECK([./list], 0, AT_PARSER_CHECK([./list], 0,
[(0, 1, 2, 4) [(0, 1, 2, 4)
]) ])