Displaying 3 results from an estimated 3 matches for "xxxdagtodagisel".
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x86dagtodagisel
2018 Jun 07
2
Matching ConstantFPSDNode tablegen
..., (as_i32imm ?:$mask), (as_i1imm
?:$unorm), (as_i1imm ?:$cachepolicy), (as_i1imm ?:$cachepolicy), 0, 0, 0, {
0 })>;
which would be ideal. This seems to be because OPC_CheckInteger only checks
for ConstantSDNode and not ConstantFPSDNode. So it was suggested to use
ComplexPattern, so given:
bool XXXDAGToDAGISel::SelectConstantFPSDNodeImmZero(SDValue In, SDValue
&Src) const {
if (ConstantFPSDNode *C = dyn_cast<ConstantFPSDNode>(In))
return C->isZero();
return false;
}
def ConstantFPSDNodeImmZero : ComplexPattern<f32, 0,
"SelectConstantFPSDNodeImmZero">;
def : XXXPat&l...
2019 May 14
2
Linker issue
...t marked as divergent because the in loop value is
uniform inside the loop. We have gotten around this problem for the moment
by applying LCSSA which inserts a PHI in the loop exit for the in loop
uniform value that allows the divergent info to be passed onto isel.
The LCSSA is being inserted into XXXDAGToDAGISel class but this causes a
pass scheduling conflict with StackProtector. So what we've done is try to
preserve StackProtector in LCSSA, the issue is that the linker fails in
Debug build (but not Release build).
StackProtector lies in CodeGen while LCSSA lies in Tranforms/Utils.
Matt had mentione...
2019 Jun 06
3
[RFC] Expressing preserved-relations between passes from different modules (was: Re: Linker issue)
...nt because the in loop value is uniform inside the loop. We have gotten around this problem for the moment by applying LCSSA which inserts a PHI in the loop exit for the in loop uniform value that allows the divergent info to be passed onto isel.
> >
> > The LCSSA is being inserted into XXXDAGToDAGISel class but this causes a pass scheduling conflict with StackProtector. So what we've done is try to preserve StackProtector in LCSSA, the issue is that the linker fails in Debug build (but not Release build).
> >
> > StackProtector lies in CodeGen while LCSSA lies in Tranforms/Utils....