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[Bug tree-optimization/54920] [4.8 Regression] segfault in tree-ssa-pre.c during Firefox build
- From: "glisse at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 14 Oct 2012 08:26:54 +0000
- Subject: [Bug tree-optimization/54920] [4.8 Regression] segfault in tree-ssa-pre.c during Firefox build
- Auto-submitted: auto-generated
- References: <bug-54920-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54920
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |glisse at gcc dot gnu.org
--- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> 2012-10-14 08:26:54 UTC ---
In create_expression_by_pieces, I see this:
case NARY:
{
vn_nary_op_t nary = PRE_EXPR_NARY (expr);
tree genop[4];
unsigned i;
for (i = 0; i < nary->length; ++i)
{
genop[i] = find_or_generate_expression (block, nary->op[i], stmts);
Does that mean 4 is an upper bound on the size of an nary?