Emitting calls to functions defined in PrimOps.cmm from the code gen
carter.schonwald at gmail.com
Fri Mar 7 15:27:18 UTC 2014
Awesome! Please post a link to the new version on devs when it lands! (I'm
not quite at the point where I can keep up with the full commits firehose
yet). This is very relevant for me.
On Friday, March 7, 2014, Johan Tibell <johan.tibell at gmail.com> wrote:
> With Simon's help I figured it out. I'm now refactoring StgCmmPrimOp so
> it's easier to have primops that have both inline and out-of-line
> implementations in the future.
> On Fri, Mar 7, 2014 at 3:19 PM, Carter Schonwald <
> > wrote:
>> Have you looked at some of the lowering code for other primops? What info
>> are you missing?
>>> I'm trying to make allocation of arrays of small, statically-known size
>>> inline. For large or unknown size I just want to call the existing
>>> stg_newArrayzh function. In code:
>>> doNewArrayOp :: DynFlags -> CmmFormal -> CmmExpr -> FCode ()
>>> doNewArrayOp dflags res_r (CmmLit (CmmInt n _)) | n <= inlineAllocLimit
>>> = do
>>> -- Do everything inline.
>>> doNewArrayOp dflags res_r n = do
>>> emitCallTo "stg_newArrayzh" res_r n -- HERE
>>> The question is: how do I emit a call to stg_newArrayzh, which is
>>> defined in PrimOps.cmm?
>>> -- Johan
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