| //=== ---- PPCMacroFusion.def - PowerPC MacroFuson Candidates -v-*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https)//llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier) Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains descriptions of the macro-fusion pair for PowerPC. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // NOTE: NO INCLUDE GUARD DESIRED! |
| |
| #ifndef FUSION_FEATURE |
| |
| // Each FUSION_FEATURE is assigned with one TYPE, and can be enabled/disabled |
| // by HAS_FEATURE. The instructions pair is fusable only when the opcode |
| // of the first instruction is in OPSET1, and the second instruction opcode is |
| // in OPSET2. And if DEP_OP_IDX >=0, we will check the result of first OP is |
| // the operand of the second op with DEP_OP_IDX as its operand index. We assume |
| // that the result of the first op is its operand zero. |
| #define FUSION_FEATURE(TYPE, HAS_FEATURE, DEP_OP_IDX, OPSET1, OPSET2) |
| |
| #endif |
| |
| #ifndef FUSION_OP_SET |
| #define FUSION_OP_SET(...) __VA_ARGS__ |
| #endif |
| |
| // Power8 User Manual Section 10.1.12, Instruction Fusion |
| // {addi} followed by one of these {lxvd2x, lxvw4x, lxvdsx, lvebx, lvehx, |
| // lvewx, lvx, lxsdx} |
| FUSION_FEATURE(AddiLoad, hasAddiLoadFusion, 2, \ |
| FUSION_OP_SET(ADDI, ADDI8, ADDItocL), \ |
| FUSION_OP_SET(LXVD2X, LXVW4X, LXVDSX, LVEBX, LVEHX, LVEWX, \ |
| LVX, LXSDX)) |
| |
| // {addis) followed by one of these {ld, lbz, lhz, lwz} |
| FUSION_FEATURE(AddisLoad, hasAddisLoadFusion, 2, \ |
| FUSION_OP_SET(ADDIS, ADDIS8, ADDIStocHA8), \ |
| FUSION_OP_SET(LD, LBZ, LBZ8, LHZ, LHZ8, LWZ, LWZ8)) |
| |
| #undef FUSION_FEATURE |
| #undef FUSION_OP_SET |
