backport: re PR c++/78761 (C++14, compiler generate mangled name that can not be...

	Backported from mainline
	2016-12-13  Jakub Jelinek  <jakub@redhat.com>

	PR c++/78761
	* cp-demangle.c (cplus_demangle_type): Demangle Dc as decltype(auto).
	* testsuite/demangle-expected: Add test for decltype(auto).

From-SVN: r248631

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 9859ad3445821d8f4f26eabe24ed31ead005395c..13b0853627b8d30eff76ddc6eb36c7d5fcb19193 100644 (file)
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,12 @@
+2017-05-30  Jakub Jelinek  <jakub@redhat.com>
+
+       Backported from mainline
+       2016-12-13  Jakub Jelinek  <jakub@redhat.com>
+
+       PR c++/78761
+       * cp-demangle.c (cplus_demangle_type): Demangle Dc as decltype(auto).
+       * testsuite/demangle-expected: Add test for decltype(auto).
+
 2016-06-03  Release Manager
 
        * GCC 5.4.0 released.

diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
index aef2e9b329244188abb1b3e6be20e749a2ac66eb..75e09b44acef118bae533660494af06bfa6a9a25 100644 (file)
--- a/libiberty/cp-demangle.c
+++ b/libiberty/cp-demangle.c
@@ -2519,7 +2519,11 @@ cplus_demangle_type (struct d_info *di)
          /* auto */
          ret = d_make_name (di, "auto", 4);
          break;
-         
+       case 'c':
+         /* decltype(auto) */
+         ret = d_make_name (di, "decltype(auto)", 14);
+         break;
+
        case 'f':
          /* 32-bit decimal floating point */
          ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);

diff --git a/libiberty/testsuite/demangle-expected b/libiberty/testsuite/demangle-expected
index 1d8b771579de9767a67d2033a7dccb4453e25651..17cab61a205adff313cc2f1640e2c5e93b86719d 100644 (file)
--- a/libiberty/testsuite/demangle-expected
+++ b/libiberty/testsuite/demangle-expected
@@ -4085,6 +4085,9 @@ decltype (new auto({parm#1})) f<int>(int)
 _Z1fIiERDaRKT_S1_
 auto& f<int>(int const&, int)
 --format=gnu-v3
+_Z1gIiEDcRKT_S0_
+decltype(auto) g<int>(int const&, int)
+--format=gnu-v3
 _Z1gILi1EEvR1AIXT_EER1BIXscbT_EE
 void g<1>(A<1>&, B<static_cast<bool>(1)>&)
 --format=gnu-v3