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Fix fast-math-pr55281.c ICE

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2020-01-31  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* tree-ssa-loop-ivopts.c (get_iv): Use sizetype for zero-step.
	(find_inv_vars_cb): Likewise.
This commit is contained in:
Andrew Stubbs 2020-01-30 14:06:12 +00:00
parent 182ce042e7
commit c63ae7f0b8
2 changed files with 14 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2020-01-31 Andrew Stubbs <ams@codesourcery.com>
* tree-ssa-loop-ivopts.c (get_iv): Use sizetype for zero-step.
(find_inv_vars_cb): Likewise.
2020-01-31 David Malcolm <dmalcolm@redhat.com>
* calls.c (special_function_p): Split out the check for DECL_NAME

11
gcc/tree-ssa-loop-ivopts.c
View file

@ -1246,7 +1246,11 @@ get_iv (struct ivopts_data *data, tree var)
if (!bb
|| !flow_bb_inside_loop_p (data->current_loop, bb))
set_iv (data, var, var, build_int_cst (type, 0), true);
{
if (POINTER_TYPE_P (type))
type = sizetype;
set_iv (data, var, var, build_int_cst (type, 0), true);
}
}
return name_info (data, var)->iv;
@ -2990,7 +2994,10 @@ find_inv_vars_cb (tree *expr_p, int *ws ATTRIBUTE_UNUSED, void *data)
if (!bb || !flow_bb_inside_loop_p (idata->current_loop, bb))
{
set_iv (idata, op, op, build_int_cst (TREE_TYPE (op), 0), true);
tree steptype = TREE_TYPE (op);
if (POINTER_TYPE_P (steptype))
steptype = sizetype;
set_iv (idata, op, op, build_int_cst (steptype, 0), true);
record_invariant (idata, op, false);
}
}