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nvc0/ir: Emit OP_SHFL

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v2: (Samuel Pitoiset)
Add an assertion to check if the target is Kepler
Make sure that asImm() is not NULL

v3: (Ilia Mirkin)
Check the range of immediate value of OP_SHFL
Use the new setPDSTL API

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 22:55:59 +08:00
committed by Ilia Mirkin
parent d941ef3829
commit c32e150008
1 changed files with 53 additions and 0 deletions
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src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
+53
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@@ -150,6 +150,8 @@ private:
void emitPIXLD(const Instruction *);
void emitSHFL(const Instruction *);
void emitVOTE(const Instruction *);
inline void defId(const ValueDef&, const int pos);
@@ -2530,6 +2532,54 @@ CodeEmitterNVC0::emitPIXLD(const Instruction *i)
code[1] |= 0x00e00000;
}
void
CodeEmitterNVC0::emitSHFL(const Instruction *i)
{
const ImmediateValue *imm;
assert(targ->getChipset() >= NVISA_GK104_CHIPSET);
code[0] = 0x00000005;
code[1] = 0x88000000 | (i->subOp << 23);
emitPredicate(i);
defId(i->def(0), 14);
srcId(i->src(0), 20);
switch (i->src(1).getFile()) {
case FILE_GPR:
srcId(i->src(1), 26);
break;
case FILE_IMMEDIATE:
imm = i->getSrc(1)->asImm();
assert(imm && imm->reg.data.u32 < 0x20);
code[0] |= imm->reg.data.u32 << 26;
code[0] |= 1 << 5;
break;
default:
assert(!"invalid src1 file");
break;
}
switch (i->src(2).getFile()) {
case FILE_GPR:
srcId(i->src(2), 49);
break;
case FILE_IMMEDIATE:
imm = i->getSrc(2)->asImm();
assert(imm && imm->reg.data.u32 < 0x2000);
code[1] |= imm->reg.data.u32 << 10;
code[0] |= 1 << 6;
break;
default:
assert(!"invalid src2 file");
break;
}
setPDSTL(i, i->defExists(1) ? 1 : -1);
}
void
CodeEmitterNVC0::emitVOTE(const Instruction *i)
{
@@ -2839,6 +2889,9 @@ CodeEmitterNVC0::emitInstruction(Instruction *insn)
case OP_PIXLD:
emitPIXLD(insn);
break;
case OP_SHFL:
emitSHFL(insn);
break;
case OP_VOTE:
emitVOTE(insn);
break;