[llvm-commits] PATCH: Tailcallopt x86 byval argument handling

Evan Cheng evan.cheng at apple.com
Thu Apr 10 17:10:00 PDT 2008

On Apr 9, 2008, at 2:33 PM, Arnold Schwaighofer wrote:

>> i'll be back
> ... and here i am. no more checking for registers. removed the check
> for the known registers (e/rcx,si,di) that are overwritten by byval
> lowering. now all register arguments are protected by a copyto/from
> virtual reg sequence the register allocator does the rest of the work.

Thanks. The patch looks good. Have you verified the register allocator  
does eliminate the unnecessary copies?


> regards arnold
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