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* cp-gimplify.c (cp_fold) [CONSTRUCTOR]: Don't clobber the input.

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From-SVN: r232524
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Jason Merrill 2016-01-18 10:54:26 -05:00 committed by Jason Merrill
parent 8d8f323550
commit 4b0b30ef85
2 changed files with 16 additions and 1 deletions
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2
gcc/cp/ChangeLog
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@ -1,5 +1,7 @@
2016-01-18 Jason Merrill <jason@redhat.com>
* cp-gimplify.c (cp_fold) [CONSTRUCTOR]: Don't clobber the input.
* cp-gimplify.c (cp_fold): Remove unnecessary special cases.
PR c++/68767

15
gcc/cp/cp-gimplify.c
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@ -2125,9 +2125,22 @@ cp_fold (tree x)
{
unsigned i;
constructor_elt *p;
bool changed = false;
vec<constructor_elt, va_gc> *elts = CONSTRUCTOR_ELTS (x);
vec<constructor_elt, va_gc> *nelts = NULL;
vec_safe_reserve (nelts, vec_safe_length (elts));
FOR_EACH_VEC_SAFE_ELT (elts, i, p)
p->value = cp_fold (p->value);
{
tree op = cp_fold (p->value);
constructor_elt e = { p->index, op };
nelts->quick_push (e);
if (op != p->value)
changed = true;
}
if (changed)
x = build_constructor (TREE_TYPE (x), nelts);
else
vec_free (nelts);
break;
}
case TREE_VEC: