Displaying 3 results from an estimated 3 matches for "shiftamt".
2009 May 21
0
[LLVMdev] [PATCH] Add new phase to legalization to handle vector operations
On Wed, May 20, 2009 at 4:55 PM, Dan Gohman <gohman at apple.com> wrote:
> Can you explain why you chose the approach of using a new pass?
> I pictured removing LegalizeDAG's type legalization code would
> mostly consist of finding all the places that use TLI.getTypeAction
> and just deleting code for handling its Expand and Promote. Are you
> anticipating something more
2009 May 20
2
[LLVMdev] [PATCH] Add new phase to legalization to handle vector operations
On May 20, 2009, at 1:34 PM, Eli Friedman wrote:
> On Wed, May 20, 2009 at 1:19 PM, Eli Friedman
> <eli.friedman at gmail.com> wrote:
>
>> Per subject, this patch adding an additional pass to handle vector
>>
>> operations; the idea is that this allows removing the code from
>>
>> LegalizeDAG that handles illegal types, which should be a significant
2009 May 21
2
[LLVMdev] [PATCH] Add new phase to legalization to handle vector operations
...VT);
- assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!");
- Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi);
- break;
- }
-
- case ISD::SHL: {
- // If the target wants custom lowering, do so.
- SDValue ShiftAmt = LegalizeOp(Node->getOperand(1));
- if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) {
- SDValue Op = DAG.getNode(ISD::SHL, dl, VT, Node->getOperand(0), ShiftAmt);
- Op = TLI.LowerOperation(Op, DAG);
- if (Op.getNode()) {
- // Now that the custom e...