Hi!
The following patch adds typeinfos for the extended floating point
types and _Float{32,64}x.
Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
2022-12-13 Jakub Jelinek <ja...@redhat.com>
PR libstdc++/108075
gcc/cp/
* rtti.cc (emit_support_tinfos): Add pointers to
{bfloat16,float{16,32,64,128,32x,64x,128x}}_type_node to fundamentals
array.
gcc/testsuite/
* g++.dg/cpp23/ext-floating13.C: New test.
libstdc++-v3/
* config/abi/pre/gnu.ver (CXXABI_1.3.14): Export
_ZTIDF[0-9]*[_bx], _ZTIPDF[0-9]*[_bx] and _ZTIPKDF[0-9]*[_bx].
* testsuite/util/testsuite_abi.cc (check_version): Handle
CXXABI_1.3.14.
--- gcc/cp/rtti.cc.jj 2022-10-17 12:29:33.519016406 +0200
+++ gcc/cp/rtti.cc 2022-12-12 15:23:48.244190755 +0100
@@ -1603,7 +1603,9 @@ emit_support_tinfos (void)
&long_long_integer_type_node, &long_long_unsigned_type_node,
&float_type_node, &double_type_node, &long_double_type_node,
&dfloat32_type_node, &dfloat64_type_node, &dfloat128_type_node,
- &nullptr_type_node,
+ &bfloat16_type_node, &float16_type_node, &float32_type_node,
+ &float64_type_node, &float128_type_node, &float32x_type_node,
+ &float64x_type_node, &float128x_type_node, &nullptr_type_node,
0
};
int ix;
--- gcc/testsuite/g++.dg/cpp23/ext-floating13.C.jj 2022-12-12
15:38:51.357009408 +0100
+++ gcc/testsuite/g++.dg/cpp23/ext-floating13.C 2022-12-12 15:39:04.568816597
+0100
@@ -0,0 +1,35 @@
+// P1467R9 - Extended floating-point types and standard names.
+// { dg-do link { target c++23 } }
+// { dg-options "" }
+
+#include <typeinfo>
+
+#ifdef __STDCPP_FLOAT16_T__
+const std::type_info &a = typeid(decltype(0.0f16));
+#endif
+#ifdef __STDCPP_BFLOAT16_T__
+const std::type_info &b = typeid(decltype(0.0bf16));
+#endif
+#ifdef __STDCPP_FLOAT32_T__
+const std::type_info &c = typeid(decltype(0.0f32));
+#endif
+#ifdef __STDCPP_FLOAT64_T__
+const std::type_info &d = typeid(decltype(0.0f64));
+#endif
+#ifdef __STDCPP_FLOAT128_T__
+const std::type_info &e = typeid(decltype(0.0f128));
+#endif
+#ifdef __FLT32X_MAX__
+const std::type_info &f = typeid(decltype(0.0f32x));
+#endif
+#ifdef __FLT64X_MAX__
+const std::type_info &g = typeid(decltype(0.0f64x));
+#endif
+#ifdef __FLT128X_MAX__
+const std::type_info &h = typeid(decltype(0.0f128x));
+#endif
+
+int
+main ()
+{
+}
--- libstdc++-v3/config/abi/pre/gnu.ver.jj 2022-11-11 08:15:45.646183974
+0100
+++ libstdc++-v3/config/abi/pre/gnu.ver 2022-12-12 15:34:08.178142084 +0100
@@ -2794,6 +2794,16 @@ CXXABI_1.3.13 {
} CXXABI_1.3.12;
+CXXABI_1.3.14 {
+
+ # typeinfo for _Float{16,32,64,128,32x,64x,128x} and
+ # __bf16
+ _ZTIDF[0-9]*[_bx];
+ _ZTIPDF[0-9]*[_bx];
+ _ZTIPKDF[0-9]*[_bx];
+
+} CXXABI_1.3.13;
+
# Symbols in the support library (libsupc++) supporting transactional memory.
CXXABI_TM_1 {
--- libstdc++-v3/testsuite/util/testsuite_abi.cc.jj 2022-09-12
11:30:14.224870022 +0200
+++ libstdc++-v3/testsuite/util/testsuite_abi.cc 2022-12-12
15:46:41.036156477 +0100
@@ -230,6 +230,7 @@ check_version(symbol& test, bool added)
known_versions.push_back("CXXABI_1.3.11");
known_versions.push_back("CXXABI_1.3.12");
known_versions.push_back("CXXABI_1.3.13");
+ known_versions.push_back("CXXABI_1.3.14");
known_versions.push_back("CXXABI_IEEE128_1.3.13");
known_versions.push_back("CXXABI_TM_1");
known_versions.push_back("CXXABI_FLOAT128");
@@ -251,7 +252,7 @@ check_version(symbol& test, bool added)
bool latestp = (test.version_name == "GLIBCXX_3.4.31"
// XXX remove next line when baselines have been regenerated.
|| test.version_name == "GLIBCXX_IEEE128_3.4.30"
- || test.version_name == "CXXABI_1.3.13"
+ || test.version_name == "CXXABI_1.3.14"
|| test.version_name == "CXXABI_FLOAT128"
|| test.version_name == "CXXABI_TM_1");
if (added && !latestp)
Jakub
