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PR c++/51194 - ICE with invalid alias template

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gcc/cp/

	PR c++/51194
	* pt.c (lookup_template_class_1): Go out early if the type of the
	template is error_mark_node.

gcc/testsuite/

	PR c++/51194
	* g++.dg/cpp0x/alias-decl-15.C: New test.

From-SVN: r181523
This commit is contained in:
Dodji Seketeli 2011-11-20 07:10:24 +00:00 committed by Dodji Seketeli
parent 417c27ab30
commit fcb36e7363
4 changed files with 34 additions and 0 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2011-11-20 Dodji Seketeli <dodji@redhat.com>
PR c++/51194
* pt.c (lookup_template_class_1): Go out early if the type of the
template is error_mark_node.
2011-11-19 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51216

6
gcc/cp/pt.c
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@ -7270,6 +7270,12 @@ lookup_template_class_1 (tree d1, tree arglist, tree in_decl, tree context,
int is_dependent_type;
int use_partial_inst_tmpl = false;
if (template_type == error_mark_node)
/* An error occured while building the template TEMPL, and a
diagnostic has most certainly been emitted for that
already. Let's propagate that error. */
return error_mark_node;
gen_tmpl = most_general_template (templ);
parmlist = DECL_TEMPLATE_PARMS (gen_tmpl);
parm_depth = TMPL_PARMS_DEPTH (parmlist);

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-11-20 Dodji Seketeli <dodji@redhat.com>
PR c++/51194
* g++.dg/cpp0x/alias-decl-15.C: New test.
2011-11-19 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51216

17
gcc/testsuite/g++.dg/cpp0x/alias-decl-15.C Normal file
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@ -0,0 +1,17 @@
// Origin PR c++/51194
// { dg-options "-std=c++0x" }
template<class U, class V> //#1
struct foo {}; // { dg-error "provided for|foo" }
template<class U, class V=char>
struct P {};
template<template<class... U> class... TT>
struct bar {
template<class... Args>
using mem = P<TT<Args...>...>;//#2 { dg-error "wrong number of|arguments" }
};
bar<foo>::mem<int, char> b;//#3 { dg-error "invalid type" }