search for: myinstruct

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2013 Feb 08
0
[LLVMdev] llvm metadata transformation pass
...me structures (instructions/variables) and the second pass is an analyzing pass which needs to access the added metadata. The problem is with my adding metadata transformation pass. There might be two problems(or both): First, maybe I don't add correctly metadata. LLVMContext& C = myInstruction->getContext(); MDNode* N = MDNode::get(C, MDString::get(C, "add info")); myInstruction->setMetadata("important", N); errs()<<"\n"<<cast<MDString>(myInstruction->getMetadata("important")->getOperand(0))->ge...
2013 May 10
4
[LLVMdev] Predicated Vector Operations
...ink I get it now. This was mentioned earlier in the thread, > but it didn't click at the time. It sounds like I can do instruction > selection with a pattern like (omitting selection of the sources): > > let Constraints = "$dst = $oldvalue" in { > def MASKEDARITH : MyInstruction< > (outs VectorReg:$dst), > (ins MaskReg:$mask, VectorReg:$src1, VectorReg:$src2, > VectorReg:$oldvalue), > "add $dst {$mask}, $src1, $src2", > [(set v16i32:$dst, (vselect v16i1:$mask, (add v16i32:$src1, > v16i32:$src2), v16i32:$oldv...
2013 Jan 31
2
[LLVMdev] Tablegen problem populating TSFlags
...= "Test"; } def RC1 : RegisterClass<"Test", [i8], 8, (add r1)>; class BitField<bits<2> x> { bits<2> Val = x; } def VALUE_0 : BitField<0>; def VALUE_1 : BitField<1>; def VALUE_2 : BitField<2>; def VALUE_3 : BitField<3>; class MyInstruction<dag outs, dag ins, string asmstr, list<dag> pattern> : Instruction { let Namespace = "Test"; let OutOperandList = outs; let InOperandList = ins; let AsmString = asmstr; let Pattern = pattern; bit Choice = 1; BitField foo...
2013 May 11
0
[LLVMdev] Predicated Vector Operations
...his was mentioned earlier in the thread, >> but it didn't click at the time. It sounds like I can do instruction >> selection with a pattern like (omitting selection of the sources): >> >> let Constraints = "$dst = $oldvalue" in { >> def MASKEDARITH : MyInstruction< >> (outs VectorReg:$dst), >> (ins MaskReg:$mask, VectorReg:$src1, VectorReg:$src2, >> VectorReg:$oldvalue), >> "add $dst {$mask}, $src1, $src2", >> [(set v16i32:$dst, (vselect v16i1:$mask, (add v16i32:$src1, >> v16...
2013 May 10
0
[LLVMdev] Predicated Vector Operations
Ah, I think I get it now. This was mentioned earlier in the thread, but it didn't click at the time. It sounds like I can do instruction selection with a pattern like (omitting selection of the sources): let Constraints = "$dst = $oldvalue" in { def MASKEDARITH : MyInstruction< (outs VectorReg:$dst), (ins MaskReg:$mask, VectorReg:$src1, VectorReg:$src2, VectorReg:$oldvalue), "add $dst {$mask}, $src1, $src2", [(set v16i32:$dst, (vselect v16i1:$mask, (add v16i32:$src1, v16i32:$src2), v16i32:$oldvalue))]>; } That's act...
2013 May 09
2
[LLVMdev] Predicated Vector Operations
On May 9, 2013, at 3:05 PM, Jeff Bush <jeffbush001 at gmail.com> wrote: > On Thu, May 9, 2013 at 8:10 AM, <dag at cray.com> wrote: >> Jeff Bush <jeffbush001 at gmail.com> writes: >> >>> %tx = select %mask, %x, <0.0, 0.0, 0.0 ...> >>> %ty = select %mask, %y, <0.0, 0.0, 0.0 ...> >>> %sum = fadd %tx, %ty >>> %newvalue
2011 Jun 24
1
[LLVMdev] unmodeled side effects
Hi A bunch of instructions that I have defined in tablegen files get tagged with unmodeledSideEffect property. I have defined these instructions with no corresponding dag patterns. Is there a way i can avoid this property and say they do not have any side effects thanks shrey
2013 May 10
0
[LLVMdev] Predicated Vector Operations
...his was mentioned earlier in the thread, >> but it didn't click at the time. It sounds like I can do instruction >> selection with a pattern like (omitting selection of the sources): >> >> let Constraints = "$dst = $oldvalue" in { >> def MASKEDARITH : MyInstruction< >> (outs VectorReg:$dst), >> (ins MaskReg:$mask, VectorReg:$src1, VectorReg:$src2, >> VectorReg:$oldvalue), >> "add $dst {$mask}, $src1, $src2", >> [(set v16i32:$dst, (vselect v16i1:$mask, (add v16i32:$src1, >> v16i32:...