Hi, This patch implements __builtin_bswap16() on ARM (v6 and above) using revsh with a signed input and rev16 with an unsigned input.
It is pretty much equal to the patch posted some time ago http://gcc.gnu.org/ml/gcc-patches/2012-04/msg00962.html, but it's hard to write such patterns differently ;-) I have added a testcase. OK for trunk? Christophe.
bswap16.patch
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