d56ea8d9a9
* src/x86/ffi64.c (ffi_prep_cif_machdep): Save sse-used flag in
bit 11 of flags.
(ffi_call): Mask return type field. Pass ssecount to ffi_call_unix64.
(ffi_prep_closure): Set carry bit if sse-used flag set.
* src/x86/unix64.S (ffi_call_unix64): Add ssecount argument.
Only load sse registers if ssecount non-zero.
(ffi_closure_unix64): Only save sse registers if carry set on entry.
From-SVN: r99257
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