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tree-optimization/106403 - fix ICE with VN of .STORE_LANES

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While .STORE_LANES is not supported by the recent VN patch we were
still accessing the stored value and valueizing it - but
internal_fn_stored_value_index does not support .STORE_LANES and
we failed to honor that case.  Fixed by simply moving the affected
code below the check for the actual supported internal functions.

	PR tree-optimization/106403
	* tree-ssa-sccvn.cc (vn_reference_lookup_3): Move stored
	value valueization after check for IFN_MASKED_STORE or
	IFN_LEN_STORE.
This commit is contained in:
Richard Biener
2022-07-22 10:13:06 +02:00
parent b2e99bb690
commit d85e5aeb76
1 changed files with 6 additions and 5 deletions
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gcc/tree-ssa-sccvn.cc
+6 -5
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@@ -3221,11 +3221,6 @@ vn_reference_lookup_3 (ao_ref *ref, tree vuse, void *data_,
{
gcall *call = as_a <gcall *> (def_stmt);
internal_fn fn = gimple_call_internal_fn (call);
tree def_rhs = gimple_call_arg (call,
internal_fn_stored_value_index (fn));
def_rhs = vn_valueize (def_rhs);
if (TREE_CODE (def_rhs) != VECTOR_CST)
return (void *)-1;
tree mask = NULL_TREE, len = NULL_TREE, bias = NULL_TREE;
switch (fn)
@@ -3245,6 +3240,12 @@ vn_reference_lookup_3 (ao_ref *ref, tree vuse, void *data_,
default:
return (void *)-1;
}
tree def_rhs = gimple_call_arg (call,
internal_fn_stored_value_index (fn));
def_rhs = vn_valueize (def_rhs);
if (TREE_CODE (def_rhs) != VECTOR_CST)
return (void *)-1;
ao_ref_init_from_ptr_and_size (&lhs_ref,
vn_valueize (gimple_call_arg (call, 0)),
TYPE_SIZE_UNIT (TREE_TYPE (def_rhs)));