diff options
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 23 |
1 files changed, 23 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 719f9805af8..21d20caffdf 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp @@ -784,6 +784,29 @@ ConstantFolding::opnd(Instruction *i, ImmediateValue &imm0, int s) i->src(1).mod = 0; } break; + case OP_MAD: + if (imm0.isInteger(0)) { + i->setSrc(0, i->getSrc(2)); + i->src(0).mod = i->src(2).mod; + i->setSrc(1, NULL); + i->setSrc(2, NULL); + i->op = i->src(0).mod.getOp(); + if (i->op != OP_CVT) + i->src(0).mod = 0; + } else + if (imm0.isInteger(1) || imm0.isInteger(-1)) { + if (imm0.isNegative()) + i->src(t).mod = i->src(t).mod ^ Modifier(NV50_IR_MOD_NEG); + if (s == 0) { + i->setSrc(0, i->getSrc(1)); + i->src(0).mod = i->src(1).mod; + } + i->setSrc(1, i->getSrc(2)); + i->src(1).mod = i->src(2).mod; + i->setSrc(2, NULL); + i->op = OP_ADD; + } + break; case OP_ADD: if (i->usesFlags()) break; |