[LLVMdev] changing opcode

[Cameron McInally]

On Wed, Feb 13, 2013 at 7:00 PM, reed kotler <rkotler at mips.com> wrote:

> Is there a simple way to just change the opcode of a machine instruction.
>
> I have a lot of long/short pairs where when I know the offset, i can
> replace the long version with the short version.
>

Hey Reed,


The x86 target does something like this. Check out ReplaceableInstrs
inlib/Target/X86/X86InstrInfo.cpp.


Hope that helps,

Cameron
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