[PATCH] Fix PR 81721: ICE with PCH and Pragma warning and C++ operator

libcpp/ChangeLog:
2019-05-19  Andrew Pinski  <apinski@marvell.com>

        PR pch/81721
        * lex.c (cpp_token_val_index <case SPELL_OPERATOR>): If tok->flags
        has NAMED_OP set, then return CPP_TOKEN_FLD_NODE.

gcc/testsuite/ChangeLog:
2019-05-19  Andrew Pinski  <apinski@marvell.com>

        PR pch/81721
        * g++.dg/pch/operator-1.C: New testcase.
        * g++.dg/pch/operator-1.Hs: New file.

From-SVN: r271395

gcc/testsuite/ChangeLog

+2019-05-19  Andrew Pinski  <apinski@marvell.com>
+
+	PR pch/81721
+	* g++.dg/pch/operator-1.C: New testcase.
+	* g++.dg/pch/operator-1.Hs: New file.
+
 2019-05-19  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/90498

gcc/testsuite/g++.dg/pch/operator-1.C

+#include "operator-1.H"
+int main(void){ major(0);} /* { dg-warning "Did not Work" } */

gcc/testsuite/g++.dg/pch/operator-1.Hs

+# define __glibc_macro_warning1(message) _Pragma (#message)
+# define __glibc_macro_warning(message) \
+  __glibc_macro_warning1 (GCC warning message)
+#define __SYSMACROS_DM1(...) __glibc_macro_warning (#__VA_ARGS__)
+
+#define __SYSMACROS_DM(symbol) __SYSMACROS_DM1 \
+ (Did not Work)
+
+# define major(dev) __SYSMACROS_DM (major) (dev+0)

libcpp/ChangeLog

+2019-05-19  Andrew Pinski  <apinski@marvell.com>
+
+	PR pch/81721
+	* lex.c (cpp_token_val_index <case SPELL_OPERATOR>): If tok->flags
+	has NAMED_OP set, then return CPP_TOKEN_FLD_NODE.
+
 2019-05-14  Martin Liska  <mliska@suse.cz>
 
 	PR preprocessor/90382

libcpp/lex.c

@@ -3756,7 +3756,11 @@ cpp_token_val_index (const cpp_token *tok)
     case SPELL_LITERAL:
       return CPP_TOKEN_FLD_STR;
     case SPELL_OPERATOR:
-      if (tok->type == CPP_PASTE)
+      /* Operands which were originally spelled as ident keep around
+         the node for the exact spelling.  */
+      if (tok->flags & NAMED_OP)
+	return CPP_TOKEN_FLD_NODE;
+      else if (tok->type == CPP_PASTE)
 	return CPP_TOKEN_FLD_TOKEN_NO;
       else
 	return CPP_TOKEN_FLD_NONE;