Messages in this thread | | | Subject | Re: [RFC PATCH] x86/hweight: Get rid of the special calling convention | From | "H. Peter Anvin" <> | Date | Wed, 4 May 2016 13:51:14 -0700 |
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On 05/04/2016 01:22 PM, Borislav Petkov wrote: > On Wed, May 04, 2016 at 12:49:17PM -0700, H. Peter Anvin wrote: >> Sigh. Doesn't look like -Wa is going to help due to the lack of the >> equivalent of an -include option in gas. > > So much for the register "freedom" - I'll resurrect the hardcoded insn > bytes. :-\ > > Unless my gcc friends have some other ideas...
There is the option of looking for assembler support for popcnt and only hard-code the register if not supported. This is where being able to insert a macro package would help...
-hpa
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