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authorAurelien Jarno <aurelien@aurel32.net>2012-09-19 22:00:22 +0200
committerAurelien Jarno <aurelien@aurel32.net>2012-09-22 15:10:21 +0200
commitc2b0e2fea2ef7a183233d3b86c37c5d4bcb89544 (patch)
treef24aab079acff1f803b587fca58fa53b1c7cd183 /qtest.h
parentb336ceb6918b8f9eb54dcbb1043521482c7be83b (diff)
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tcg/optimize: prefer the "op a, a, b" form for commutative ops
The "op a, a, b" form is better handled on non-RISC host than the "op a, b, a" form, so swap the arguments to this form when possible, and when b is not a constant. This reduces the number of generated instructions by a tiny bit. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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