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gk110/ir: Emit OP_SHFL

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v2: Make sure that asImm() is not NULL (Samuel Pitoiset)

v3: Check the range of immediate in OP_SHFL (Ilia Mirkin)

Signed-off-by: Boyan Ding <boyan.j.ding@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Boyan Ding 2017-04-10 22:56:00 +08:00 • committed by Ilia Mirkin
parent c32e150008
commit f1252996f5
1 changed files with 56 additions and 0 deletions
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56
src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp
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@ -135,6 +135,8 @@ private:
void emitFlow(const Instruction *);
void emitSHFL(const Instruction *);
void emitVOTE(const Instruction *);
void emitSULDGB(const TexInstruction *);
@ -1565,6 +1567,57 @@ CodeEmitterGK110::emitFlow(const Instruction *i)
}
}
void
CodeEmitterGK110::emitSHFL(const Instruction *i)
{
const ImmediateValue *imm;
code[0] = 0x00000002;
code[1] = 0x78800000 | (i->subOp << 1);
emitPredicate(i);
defId(i->def(0), 2);
srcId(i->src(0), 10);
switch (i->src(1).getFile()) {
case FILE_GPR:
srcId(i->src(1), 23);
break;
case FILE_IMMEDIATE:
imm = i->getSrc(1)->asImm();
assert(imm && imm->reg.data.u32 < 0x20);
code[0] |= imm->reg.data.u32 << 23;
code[0] |= 1 << 31;
break;
default:
assert(!"invalid src1 file");
break;
}
switch (i->src(2).getFile()) {
case FILE_GPR:
srcId(i->src(2), 42);
break;
case FILE_IMMEDIATE:
imm = i->getSrc(2)->asImm();
assert(imm && imm->reg.data.u32 < 0x2000);
code[1] |= imm->reg.data.u32 << 5;
code[1] |= 1;
break;
default:
assert(!"invalid src2 file");
break;
}
if (!i->defExists(1))
code[1] |= 7 << 19;
else {
assert(i->def(1).getFile() == FILE_PREDICATE);
defId(i->def(1), 51);
}
}
void
CodeEmitterGK110::emitVOTE(const Instruction *i)
{
@ -2642,6 +2695,9 @@ CodeEmitterGK110::emitInstruction(Instruction *insn)
case OP_CCTL:
emitCCTL(insn);
break;
case OP_SHFL:
emitSHFL(insn);
break;
case OP_VOTE:
emitVOTE(insn);
break;