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re PR libstdc++/43622 (Incomplete C++ library support for __float128)

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2014-11-18  Marc Glisse  <marc.glisse@inria.fr>

	PR libstdc++/43622
gcc/cp/
	* rtti.c (emit_support_tinfos): Handle __float128.
libstdc++-v3/
	* config/abi/pre/float128.ver: New file.
	* configure.ac: Use float128.ver when relevant.
	* configure: Regenerate.
	* testsuite/util/testsuite_abi.cc (check_version): Accept new
	CXXABI_FLOAT128 version.

From-SVN: r217735
This commit is contained in:
Marc Glisse 2014-11-18 21:20:53 +01:00 • committed by Marc Glisse
parent ac2f8d26b5
commit bb59f396f8
7 changed files with 38 additions and 3 deletions
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5
gcc/cp/ChangeLog
View file

@ -1,3 +1,8 @@
2014-11-18 Marc Glisse <marc.glisse@inria.fr>
PR libstdc++/43622
* rtti.c (emit_support_tinfos): Handle __float128.
2014-11-18 Jason Merrill <jason@redhat.com>
PR c++/63925

2
gcc/cp/rtti.c
View file

@ -1547,6 +1547,8 @@ emit_support_tinfos (void)
emit_support_tinfo_1 (int_n_trees[ix].signed_type);
emit_support_tinfo_1 (int_n_trees[ix].unsigned_type);
}
for (tree t = registered_builtin_types; t; t = TREE_CHAIN (t))
emit_support_tinfo_1 (TREE_VALUE (t));
}
/* Finish a type info decl. DECL_PTR is a pointer to an unemitted

9
libstdc++-v3/ChangeLog
View file

@ -1,3 +1,12 @@
2014-11-18 Marc Glisse <marc.glisse@inria.fr>
PR libstdc++/43622
* config/abi/pre/float128.ver: New file.
* configure.ac: Use float128.ver when relevant.
* configure: Regenerate.
* testsuite/util/testsuite_abi.cc (check_version): Accept new
CXXABI_FLOAT128 version.
2014-11-17 Jason Merrill <jason@redhat.com>
* include/backward/binders.h: Suppress -Wdeprecated-declarations.

10
libstdc++-v3/config/abi/pre/float128.ver Normal file
View file

@ -0,0 +1,10 @@
# Appended to version file.
CXXABI_FLOAT128 {
# typeinfo and typeinfo name for __float128
_ZT[IS]g;
_ZT[IS]Pg;
_ZT[IS]PKg;
};

3
libstdc++-v3/configure vendored
View file

@ -15710,6 +15710,9 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test "$enable_float128" = yes; then
port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver"
fi
# Checks for compiler support that doesn't require linking.

3
libstdc++-v3/configure.ac
View file

@ -153,6 +153,9 @@ GLIBCXX_ENABLE_THREADS
GLIBCXX_ENABLE_ATOMIC_BUILTINS
GLIBCXX_ENABLE_DECIMAL_FLOAT
GLIBCXX_ENABLE_INT128_FLOAT128
if test "$enable_float128" = yes; then
port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver"
fi
# Checks for compiler support that doesn't require linking.
GLIBCXX_CHECK_COMPILER_FEATURES

9
libstdc++-v3/testsuite/util/testsuite_abi.cc
View file

@ -213,6 +213,7 @@ check_version(symbol& test, bool added)
known_versions.push_back("CXXABI_1.3.8");
known_versions.push_back("CXXABI_1.3.9");
known_versions.push_back("CXXABI_TM_1");
known_versions.push_back("CXXABI_FLOAT128");
}
compat_list::iterator begin = known_versions.begin();
compat_list::iterator end = known_versions.end();
@ -230,16 +231,18 @@ check_version(symbol& test, bool added)
// Check that added symbols are added in the latest pre-release version.
bool latestp = (test.version_name == "GLIBCXX_3.4.21"
|| test.version_name == "CXXABI_1.3.9"
|| test.version_name == "CXXABI_FLOAT128"
|| test.version_name == "CXXABI_TM_1");
if (added && !latestp)
test.version_status = symbol::incompatible;
// Check that long double compatibility symbols demangled as
// __float128 are put into some _LDBL_ version name.
// __float128 and regular __float128 symbols are put into some _LDBL_
// or _FLOAT128 version name.
if (added && test.demangled_name.find("__float128") != std::string::npos)
{
// Has to be in _LDBL_ version name.
if (test.version_name.find("_LDBL_") == std::string::npos)
if (test.version_name.find("_LDBL_") == std::string::npos
&& test.version_name.find("_FLOAT128") == std::string::npos)
test.version_status = symbol::incompatible;
}