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re PR rtl-optimization/55106 (ice: Maximum number of LRA constraint passes is achieved (15))

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2012-10-29  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/55106
	* g++.dg/pr55106.C: New.

From-SVN: r192944
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Vladimir Makarov 2012-10-29 14:42:05 +00:00 committed by Vladimir Makarov
parent 9dcbb3806d
commit 13a6a8d23f
2 changed files with 72 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2012-10-29 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/55106
* g++.dg/pr55106.C: New.
2012-10-29 Richard Guenther <rguenther@suse.de>
PR middle-end/53695

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gcc/testsuite/g++.dg/pr55106.C Normal file
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/* { dg-do compile } */
/* { dg-options "-c -O3" } */
template<typename _Tp> struct A {
typedef _Tp *pointer;
typedef _Tp& reference;
typedef _Tp& const_reference;
template<typename>struct rebind
{
typedef A other;
};
};
template<typename _Alloc>struct __alloc_traits
{
typedef typename _Alloc::pointer pointer;
typedef typename _Alloc::reference reference;
typedef typename _Alloc::const_reference const_reference;
template<typename _Tp>struct rebind
{
typedef typename _Alloc::template rebind<_Tp>::other other;
};
};
template<typename _Tp, typename _Alloc>struct B
{
typedef typename __alloc_traits<_Alloc>::template rebind<
_Tp>::other _Tp_alloc_type;
typedef typename __alloc_traits<_Tp_alloc_type>::pointer pointer;
struct F
{
pointer _M_start;
};
F _M_impl;
};
template<typename _Tp, typename _Alloc = A<_Tp> >class vec : B<_Tp, _Alloc>{
typedef B<_Tp, _Alloc> _Base;
typedef typename _Base::_Tp_alloc_type _Tp_alloc_type;
typedef __alloc_traits<_Tp_alloc_type> _Alloc_traits;
public:
typedef _Tp value_type;
typedef typename _Alloc_traits::reference reference;
typedef typename _Alloc_traits::const_reference const_reference;
reference operator[](int p1)
{
return *(this->_M_impl._M_start + p1);
}
const_reference operator[](long) const;
};
int a[17];
class C {
vec<int> m_value;
void opModDivGuts(const C&);
int mostSetBitP1() const;
};
void C::opModDivGuts(const C& p1)
{
int b = p1.mostSetBitP1(), c = b + 1;
int d[16];
for (int i = c; i; i--)
a[i] = p1.m_value[i] << b;
for (int i = 0; i < c; i++)
m_value[i] = d[i] >> b << -b;
}