Displaying 3 results from an estimated 3 matches for "fpcontractions".
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contractions
2009 Jun 17
2
[LLVMdev] possible PowerPC (32bits) backend bug
...saw a behavior that doesn't look right.
I think its a bug in the PPC backend.
The 32-bit PPC .td file defines a pattern for the fnmsubs instruction like this:
def : Pat<(fsub F4RC:$B, (fmul F4RC:$A, F4RC:$C)),
(FNMSUBS F4RC:$A, F4RC:$C, F4RC:$B)>,
Requires<[FPContractions]>;
The unique feature of this parttern is that it maps a pair of
LLVM IR instructions into a single PPC instruction.
def FNMSUBS : AForm_1<59, 30,(outs F4RC:$FRT), (ins F4RC:$FRA, F4RC:$FRC, F4RC:$FRB),
"fnmsubs $FRT, $FRA, $FRC, $FRB", FPGeneral,...
2016 Nov 18
2
what does -ffp-contract=fast allow?
Sent from my Verizon Wireless 4G LTE DROID
On Nov 17, 2016 5:53 PM, Mehdi Amini <mehdi.amini at apple.com<mailto:mehdi.amini at apple.com>> wrote:
>
>
>> On Nov 17, 2016, at 4:33 PM, Hal Finkel <hfinkel at anl.gov<mailto:hfinkel at anl.gov>> wrote:
>>
>>
>> ________________________________
>>>
>>> From: "Warren
2016 Nov 18
2
what does -ffp-contract=fast allow?
----- Original Message -----
> From: "Sanjay Patel" <spatel at rotateright.com>
> To: "Hal J. Finkel" <hfinkel at anl.gov>
> Cc: "Mehdi Amini" <mehdi.amini at apple.com>, "llvm-dev"
> <llvm-dev at lists.llvm.org>, "cfe-dev" <cfe-dev at lists.llvm.org>,
> "andrew kaylor" <andrew.kaylor at