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