diff options
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 11 |
1 files changed, 11 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 28b59857e63..04b6af2471b 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp @@ -1260,6 +1260,17 @@ ConstantFolding::opnd(Instruction *i, ImmediateValue &imm0, int s) i->op = OP_EXTBF; i->setSrc(0, src->getSrc(0)); i->setSrc(1, new_ImmediateValue(prog, ext)); + } else if (src->op == OP_SHL && + src->src(1).getImmediate(imm1) && + i->src(t).mod == Modifier(0) && + util_is_power_of_two(~imm0.reg.data.u32 + 1) && + util_last_bit(~imm0.reg.data.u32) <= imm1.reg.data.u32) { + i->op = OP_MOV; + i->setSrc(s, NULL); + if (t) { + i->setSrc(0, i->getSrc(t)); + i->setSrc(t, NULL); + } } } break; |