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.
Bootstrap / regtest running on x86_64-unknown-linux-gnu.
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.
---
gcc/tree-ssa-sccvn.cc | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/gcc/tree-ssa-sccvn.cc b/gcc/tree-ssa-sccvn.cc
index 0ebbc69b502..741e6ebc4ba 100644
--- a/gcc/tree-ssa-sccvn.cc
+++ b/gcc/tree-ssa-sccvn.cc
@@ -3227,11 +3227,6 @@ 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)
@@ -3251,6 +3246,12 @@ 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)));
--
2.35.3
