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re PR c++/58207 (ICE in sort_constexpr_mem_initializers due to out of bounds vector access) 

/cp
2014-04-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58207
	* semantics.c (sort_constexpr_mem_initializers): Robustify loop.

/testsuite
2014-04-04  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/58207
	* g++.dg/cpp0x/constexpr-ice15.C: New.

From-SVN: r209128
This commit is contained in:
Paolo Carlini 2014-04-04 20:11:47 +00:00 committed by Paolo Carlini
parent e005b75359
commit 9119c7faba
4 changed files with 29 additions and 7 deletions
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5
gcc/cp/ChangeLog
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@ -1,3 +1,8 @@
2014-04-04 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58207
* semantics.c (sort_constexpr_mem_initializers): Robustify loop.
2014-04-04 Patrick Palka <patrick@parcs.ath.cx>
PR c++/44613

14
gcc/cp/semantics.c
View File

@ -7720,8 +7720,8 @@ sort_constexpr_mem_initializers (tree type, vec<constructor_elt, va_gc> *v)
{
tree pri = CLASSTYPE_PRIMARY_BINFO (type);
tree field_type;
constructor_elt elt;
int i;
unsigned i;
constructor_elt *ce;
if (pri)
field_type = BINFO_TYPE (pri);
@ -7732,14 +7732,14 @@ sort_constexpr_mem_initializers (tree type, vec<constructor_elt, va_gc> *v)
/* Find the element for the primary base or vptr and move it to the
beginning of the vec. */
vec<constructor_elt, va_gc> &vref = *v;
for (i = 0; ; ++i)
if (TREE_TYPE (vref[i].index) == field_type)
for (i = 0; vec_safe_iterate (v, i, &ce); ++i)
if (TREE_TYPE (ce->index) == field_type)
break;
if (i > 0)
if (i > 0 && i < vec_safe_length (v))
{
elt = vref[i];
vec<constructor_elt, va_gc> &vref = *v;
constructor_elt elt = vref[i];
for (; i > 0; --i)
vref[i] = vref[i-1];
vref[0] = elt;

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2014-04-04 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58207
* g++.dg/cpp0x/constexpr-ice15.C: New.
2014-04-04 Jan Hubicka <hubicka@ucw.cz>
PR ipa/59626

12
gcc/testsuite/g++.dg/cpp0x/constexpr-ice15.C Normal file
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@ -0,0 +1,12 @@
// PR c++/58207
// { dg-do compile { target c++11 } }
struct A
{
virtual bool foo ();
};
struct B : public A
{
constexpr B () : A (&::n) {} // { dg-error "declared" }
};