add bswap16/32/64

- frontend: __builtin_bswapX intrinsics
- backend: ObswapX instructions

1 files changed, 3 insertions, 0 deletions

diff --git a/ir/op.def b/ir/op.def
index ac753c0..4a18b4b 100644
--- a/ir/op.def
+++ b/ir/op.def
@@ -20,6 +20,9 @@ _(exts16,    1)
 _(extu16,    1)
 _(exts32,    1)
 _(extu32,    1)
+_(bswap16,   1)
+_(bswap32,   1)
+_(bswap64,   1)
 _(add,       2)
 _(sub,       2)
 _(mul,       2)