diff options
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp index 737bda3ee33..0fb1a7803bd 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp @@ -932,6 +932,24 @@ ConstantFolding::opnd(Instruction *i, ImmediateValue &imm0, int s) Instruction *newi = i; switch (i->op) { + case OP_SPLIT: { + bld.setPosition(i, false); + + uint8_t size = i->getDef(0)->reg.size; + uint32_t mask = (1ULL << size) - 1; + assert(size <= 32); + + uint64_t val = imm0.reg.data.u64; + for (int8_t d = 0; i->defExists(d); ++d) { + Value *def = i->getDef(d); + assert(def->reg.size == size); + + newi = bld.mkMov(def, bld.mkImm((uint32_t)(val & mask)), TYPE_U32); + val >>= size; + } + delete_Instruction(prog, i); + break; + } case OP_MUL: if (i->dType == TYPE_F32) tryCollapseChainedMULs(i, s, imm0); |