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2012 Jun 29
1
[LLVMdev] Request for merge: GHC/ARM calling convention.
...the
comment from the top of the file might be more useful here than my
writing about it:
* STG-to-C glue.
*
* To run an STG function from C land, call
*
* rv = StgRun(f,BaseReg);
*
* where "f" is the STG function to call, and BaseReg is the address of the
* RegTable for this run (we might have separate RegTables if we're running
* multiple threads on an SMP machine).
*
* In the end, "f" must JMP to StgReturn (defined below), passing the
* return-value "rv" in R1, to return to the caller of StgRun returning
"rv" in...
2012 Jun 29
0
[LLVMdev] Request for merge: GHC/ARM calling convention.
On 29 June 2012 17:46, Karel Gardas <karel.gardas at centrum.cz> wrote:
> Yes and no. Shortly: original GHC/ARM/LLVM port was done by Stephen on
> ARMv5/Qemu IIRC. I've later added whole VFP support and ARMv7 support. The
> code in GHC is properly #ifdefed, so if there is no VFP available on pre
> ARMv6, then it's not used. ie. GHC STG floating points regs are then
>
2012 Jun 29
2
[LLVMdev] Request for merge: GHC/ARM calling convention.
Hi Renato,
On 06/25/12 12:13 AM, Renato Golin wrote:
> Hi Karel,
>
> I understand this patch has already been merged (to 3.0), so don't
> take my question as stopping the merge to head, I'm just making sure I
> got it right... The rest looks correct.
>
> + CCIfType<[v2f64], CCAssignToReg<[Q4, Q5]>>,
> + CCIfType<[f64], CCAssignToReg<[D8, D9,