[Bug target/31478] Typo in sse2_umulv2siv2di3 pattern

[ubizjak at gmail dot com]

------- Comment #3 from ubizjak at gmail dot com  2007-04-05 08:48 -------
> There is no corresponding define_expand for this pattern. Many define_insn
> patterns without define_expand don't call ix86_binary_operator_ok. Will that
> be a problem?

Those are sse builtins and are expanded via ix86_expand_binop_builtin(). This
function fixes all operands to satisfy ix86_binary_operator_ok().

Regarding call to ix86_binary_operator_ok - this check is needed only when both
input operands are nonimmediate_operand (and output operand is
register_operand). There is indeed a pattern without this check - sse2_pmaddwd.
Due to %, it is commutative, so check for PLUS of V8HI mode would be OK.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31478