Summary:
This patch is to fix the parsing of long double literals encoded with the e prefix on PowerPC and S390. For both PowerPC and S390, type code e is used for 64-bit long double literals and g is used for 128-bit long double literals. libcxxabi test case test_demangle.pass.cpp fails without the fix.
Authored by: xingxue-ibm
Reviewers: hubert.reinterpretcast, jasonliu, erik.pilkington, uweigand, mclow.li
sts, libc++abi
Reviewed by: hubert.reinterpretcast, erik.pilkington
Differential Revision: https://reviews.llvm.org/D74163
return getDerived().template parseFloatingLiteral<double>();
case 'e':
++First;
+#if defined(__powerpc__) || defined(__s390__)
+ // Handle cases where long doubles encoded with e have the same size
+ // and representation as doubles.
+ return getDerived().template parseFloatingLiteral<double>();
+#else
return getDerived().template parseFloatingLiteral<long double>();
+#endif
case '_':
if (consumeIf("_Z")) {
Node *R = getDerived().parseEncoding();
return getDerived().template parseFloatingLiteral<double>();
case 'e':
++First;
+#if defined(__powerpc__) || defined(__s390__)
+ // Handle cases where long doubles encoded with e have the same size
+ // and representation as doubles.
+ return getDerived().template parseFloatingLiteral<double>();
+#else
return getDerived().template parseFloatingLiteral<long double>();
+#endif
case '_':
if (consumeIf("_Z")) {
Node *R = getDerived().parseEncoding();