DAGISelMatcherEmitter.cpp revision c84edb7bdd345db280c908583d55bdf4e670a225
1da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner//===- DAGISelMatcherEmitter.cpp - Matcher Emitter ------------------------===// 2da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// 3da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// The LLVM Compiler Infrastructure 4da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// 5da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// This file is distributed under the University of Illinois Open Source 6da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// License. See LICENSE.TXT for details. 7da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// 8da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner//===----------------------------------------------------------------------===// 9da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// 10da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// This file contains code to generate C++ code a matcher. 11da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner// 12da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner//===----------------------------------------------------------------------===// 13da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 14da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner#include "DAGISelMatcher.h" 15da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner#include "CodeGenDAGPatterns.h" 168e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner#include "Record.h" 17e609a513f3c072bba28412c681465332a2822d9aChris Lattner#include "llvm/ADT/DenseMap.h" 18da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner#include "llvm/ADT/SmallString.h" 19050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner#include "llvm/ADT/StringMap.h" 20da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner#include "llvm/Support/FormattedStream.h" 21da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattnerusing namespace llvm; 22da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 23da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattnernamespace { 24da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattnerenum { 255be6e5990b1da82e31f4236d1b392e52637cbe2eChris Lattner CommentIndent = 30 26da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner}; 27da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner} 28da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 29da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner/// ClassifyInt - Classify an integer by size, return '1','2','4','8' if this 30da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner/// fits in 1, 2, 4, or 8 sign extended bytes. 31da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattnerstatic char ClassifyInt(int64_t Val) { 32da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner if (Val == int8_t(Val)) return '1'; 33da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner if (Val == int16_t(Val)) return '2'; 34da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner if (Val == int32_t(Val)) return '4'; 35da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return '8'; 36da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner} 37da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 38da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner/// EmitInt - Emit the specified integer, returning the number of bytes emitted. 39da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattnerstatic unsigned EmitInt(int64_t Val, formatted_raw_ostream &OS) { 40da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner unsigned BytesEmitted = 1; 41da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << (int)(unsigned char)Val << ", "; 42da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner if (Val == int8_t(Val)) { 438e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << '\n'; 44da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return BytesEmitted; 45da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 46da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 47da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << (int)(unsigned char)(Val >> 8) << ", "; 48da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner ++BytesEmitted; 49da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 50da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner if (Val != int16_t(Val)) { 518e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << (int)(unsigned char)(Val >> 16) << ", " 528e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << (int)(unsigned char)(Val >> 24) << ", "; 53da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner BytesEmitted += 2; 54da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 55da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner if (Val != int32_t(Val)) { 568e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << (int)(unsigned char)(Val >> 32) << ", " 578e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << (int)(unsigned char)(Val >> 40) << ", " 588e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << (int)(unsigned char)(Val >> 48) << ", " 598e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << (int)(unsigned char)(Val >> 56) << ", "; 60da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner BytesEmitted += 4; 61da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 62da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 63da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 648e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS.PadToColumn(CommentIndent) << "// " << Val << " aka 0x"; 658e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS.write_hex(Val) << '\n'; 66da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return BytesEmitted; 67da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner} 68da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 69e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattnernamespace { 70e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattnerclass MatcherTableEmitter { 71050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner StringMap<unsigned> NodePredicateMap, PatternPredicateMap; 72050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner std::vector<std::string> NodePredicates, PatternPredicates; 73e609a513f3c072bba28412c681465332a2822d9aChris Lattner 74e609a513f3c072bba28412c681465332a2822d9aChris Lattner DenseMap<const ComplexPattern*, unsigned> ComplexPatternMap; 75e609a513f3c072bba28412c681465332a2822d9aChris Lattner std::vector<const ComplexPattern*> ComplexPatterns; 768e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 778e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 788e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner DenseMap<Record*, unsigned> NodeXFormMap; 798e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner std::vector<const Record*> NodeXForms; 808e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 81e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattnerpublic: 82984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner MatcherTableEmitter() {} 83e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattner 84984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner unsigned EmitMatcherList(const MatcherNode *N, unsigned Indent, 858fbad244bd436163296d81d4f182750e000fd16dChris Lattner unsigned StartIdx, formatted_raw_ostream &OS); 86050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner 87984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner void EmitPredicateFunctions(formatted_raw_ostream &OS); 88e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattnerprivate: 89984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner unsigned EmitMatcher(const MatcherNode *N, unsigned Indent, 90984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner formatted_raw_ostream &OS); 91050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner 92050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner unsigned getNodePredicate(StringRef PredName) { 93050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner unsigned &Entry = NodePredicateMap[PredName]; 94050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner if (Entry == 0) { 95050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner NodePredicates.push_back(PredName.str()); 96050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner Entry = NodePredicates.size(); 97050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner } 98050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner return Entry-1; 99050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner } 100050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner unsigned getPatternPredicate(StringRef PredName) { 101050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner unsigned &Entry = PatternPredicateMap[PredName]; 102050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner if (Entry == 0) { 103050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner PatternPredicates.push_back(PredName.str()); 104050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner Entry = PatternPredicates.size(); 105050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner } 106050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner return Entry-1; 107050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner } 108e609a513f3c072bba28412c681465332a2822d9aChris Lattner 109e609a513f3c072bba28412c681465332a2822d9aChris Lattner unsigned getComplexPat(const ComplexPattern &P) { 110e609a513f3c072bba28412c681465332a2822d9aChris Lattner unsigned &Entry = ComplexPatternMap[&P]; 111e609a513f3c072bba28412c681465332a2822d9aChris Lattner if (Entry == 0) { 112e609a513f3c072bba28412c681465332a2822d9aChris Lattner ComplexPatterns.push_back(&P); 113e609a513f3c072bba28412c681465332a2822d9aChris Lattner Entry = ComplexPatterns.size(); 114e609a513f3c072bba28412c681465332a2822d9aChris Lattner } 115e609a513f3c072bba28412c681465332a2822d9aChris Lattner return Entry-1; 116e609a513f3c072bba28412c681465332a2822d9aChris Lattner } 1178e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 1188e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner unsigned getNodeXFormID(Record *Rec) { 1198e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner unsigned &Entry = NodeXFormMap[Rec]; 1208e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner if (Entry == 0) { 1218e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner NodeXForms.push_back(Rec); 1228e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner Entry = NodeXForms.size(); 1238e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner } 1248e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return Entry-1; 1258e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner } 1268e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 127e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattner}; 128e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattner} // end anonymous namespace. 129e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattner 1305007e1e43541114f3737939234104b085fbe4acaChris Lattner/// EmitVBRValue - Emit the specified value as a VBR, returning the number of 1315007e1e43541114f3737939234104b085fbe4acaChris Lattner/// bytes emitted. 1325007e1e43541114f3737939234104b085fbe4acaChris Lattnerstatic unsigned EmitVBRValue(unsigned Val, raw_ostream &OS) { 1335007e1e43541114f3737939234104b085fbe4acaChris Lattner if (Val <= 127) { 1345007e1e43541114f3737939234104b085fbe4acaChris Lattner OS << Val << ", "; 1355007e1e43541114f3737939234104b085fbe4acaChris Lattner return 1; 1365007e1e43541114f3737939234104b085fbe4acaChris Lattner } 1375007e1e43541114f3737939234104b085fbe4acaChris Lattner 1385007e1e43541114f3737939234104b085fbe4acaChris Lattner unsigned InVal = Val; 1395007e1e43541114f3737939234104b085fbe4acaChris Lattner unsigned NumBytes = 0; 140860d4a787f28f5f31e0c172e2ab80f5ab93cbf9bChris Lattner while (Val >= 128) { 1415007e1e43541114f3737939234104b085fbe4acaChris Lattner OS << (Val&127) << "|128,"; 1425007e1e43541114f3737939234104b085fbe4acaChris Lattner Val >>= 7; 1435007e1e43541114f3737939234104b085fbe4acaChris Lattner ++NumBytes; 1445007e1e43541114f3737939234104b085fbe4acaChris Lattner } 1455007e1e43541114f3737939234104b085fbe4acaChris Lattner OS << Val << "/*" << InVal << "*/, "; 1465007e1e43541114f3737939234104b085fbe4acaChris Lattner return NumBytes+1; 1475007e1e43541114f3737939234104b085fbe4acaChris Lattner} 1485007e1e43541114f3737939234104b085fbe4acaChris Lattner 149da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner/// EmitMatcherOpcodes - Emit bytes for the specified matcher and return 150da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner/// the number of bytes emitted. 151e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattnerunsigned MatcherTableEmitter:: 152984e18823e863f2232ccf63f7e84b878dbd55b6fChris LattnerEmitMatcher(const MatcherNode *N, unsigned Indent, formatted_raw_ostream &OS) { 153da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS.PadToColumn(Indent*2); 154da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 155da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner switch (N->getKind()) { 156da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::Push: assert(0 && "Should be handled by caller"); 157845c04273461b2a10754a1455b02916a19ea72aaChris Lattner case MatcherNode::RecordNode: 158845c04273461b2a10754a1455b02916a19ea72aaChris Lattner OS << "OPC_RecordNode,"; 159c96087b3433582f1c2bdb4f0ad3dad7f0b350339Chris Lattner OS.PadToColumn(CommentIndent) << "// " 160c96087b3433582f1c2bdb4f0ad3dad7f0b350339Chris Lattner << cast<RecordMatcherNode>(N)->getWhatFor() << '\n'; 161da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 1; 16219b5a7590b784f19875b9880ea8838c393431656Chris Lattner 16319b5a7590b784f19875b9880ea8838c393431656Chris Lattner case MatcherNode::RecordChild: 16419b5a7590b784f19875b9880ea8838c393431656Chris Lattner OS << "OPC_RecordChild" << cast<RecordChildMatcherNode>(N)->getChildNo() 16519b5a7590b784f19875b9880ea8838c393431656Chris Lattner << ','; 16619b5a7590b784f19875b9880ea8838c393431656Chris Lattner OS.PadToColumn(CommentIndent) << "// " 16719b5a7590b784f19875b9880ea8838c393431656Chris Lattner << cast<RecordChildMatcherNode>(N)->getWhatFor() << '\n'; 16819b5a7590b784f19875b9880ea8838c393431656Chris Lattner return 1; 1698e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 1708e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::RecordMemRef: 1718e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_RecordMemRef,\n"; 1728e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return 1; 1738e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 1748e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::CaptureFlagInput: 1758e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_CaptureFlagInput,\n"; 1768e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return 1; 1778e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 178da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::MoveChild: 179da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_MoveChild, " 180da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner << cast<MoveChildMatcherNode>(N)->getChildNo() << ",\n"; 181da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 182da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 183da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::MoveParent: 184da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_MoveParent,\n"; 185da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 1; 186da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 187da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckSame: 188da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckSame, " 189da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner << cast<CheckSameMatcherNode>(N)->getMatchNumber() << ",\n"; 190da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 191da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 192050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner case MatcherNode::CheckPatternPredicate: { 193050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner StringRef Pred = cast<CheckPatternPredicateMatcherNode>(N)->getPredicate(); 194050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << "OPC_CheckPatternPredicate, " << getPatternPredicate(Pred) << ','; 195050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS.PadToColumn(CommentIndent) << "// " << Pred << '\n'; 196da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 197050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner } 198050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner case MatcherNode::CheckPredicate: { 199050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner StringRef Pred = cast<CheckPredicateMatcherNode>(N)->getPredicateName(); 200050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << "OPC_CheckPredicate, " << getNodePredicate(Pred) << ','; 201050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS.PadToColumn(CommentIndent) << "// " << Pred << '\n'; 202da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 203050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner } 204050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner 205da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckOpcode: 206da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckOpcode, " 207da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner << cast<CheckOpcodeMatcherNode>(N)->getOpcodeName() << ",\n"; 208da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 209da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 21012a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner case MatcherNode::CheckMultiOpcode: { 21112a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner const CheckMultiOpcodeMatcherNode *CMO=cast<CheckMultiOpcodeMatcherNode>(N); 21212a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner OS << "OPC_CheckMultiOpcode, " << CMO->getNumOpcodeNames() << ", "; 21312a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner for (unsigned i = 0, e = CMO->getNumOpcodeNames(); i != e; ++i) 21412a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner OS << CMO->getOpcodeName(i) << ", "; 21512a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner OS << '\n'; 21612a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner return 2 + CMO->getNumOpcodeNames(); 21712a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner } 21812a667c1e8fa57a13ae751164b6dd4412a62dc5dChris Lattner 219da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckType: 220da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckType, " 221da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner << getEnumName(cast<CheckTypeMatcherNode>(N)->getType()) << ",\n"; 222da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 223da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 224da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckInteger: { 225da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner int64_t Val = cast<CheckIntegerMatcherNode>(N)->getValue(); 226da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckInteger" << ClassifyInt(Val) << ", "; 227da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return EmitInt(Val, OS)+1; 228da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 229da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckCondCode: 230da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckCondCode, ISD::" 231da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner << cast<CheckCondCodeMatcherNode>(N)->getCondCodeName() << ",\n"; 232da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 233da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 234da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckValueType: 235da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckValueType, MVT::" 236da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner << cast<CheckValueTypeMatcherNode>(N)->getTypeName() << ",\n"; 237da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 238da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 2395be6e5990b1da82e31f4236d1b392e52637cbe2eChris Lattner case MatcherNode::CheckComplexPat: { 2405be6e5990b1da82e31f4236d1b392e52637cbe2eChris Lattner const ComplexPattern &Pattern = 2415be6e5990b1da82e31f4236d1b392e52637cbe2eChris Lattner cast<CheckComplexPatMatcherNode>(N)->getPattern(); 2425be6e5990b1da82e31f4236d1b392e52637cbe2eChris Lattner OS << "OPC_CheckComplexPat, " << getComplexPat(Pattern) << ','; 243781f359c1a7f590c4f8828ad9d542606c3a0ee12Chris Lattner OS.PadToColumn(CommentIndent) << "// " << Pattern.getSelectFunc(); 244781f359c1a7f590c4f8828ad9d542606c3a0ee12Chris Lattner OS << ": " << Pattern.getNumOperands() << " operands"; 245781f359c1a7f590c4f8828ad9d542606c3a0ee12Chris Lattner if (Pattern.hasProperty(SDNPHasChain)) 246781f359c1a7f590c4f8828ad9d542606c3a0ee12Chris Lattner OS << " + chain result and input"; 247781f359c1a7f590c4f8828ad9d542606c3a0ee12Chris Lattner OS << '\n'; 248da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 2; 2495be6e5990b1da82e31f4236d1b392e52637cbe2eChris Lattner } 250da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 251da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckAndImm: { 252da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner int64_t Val = cast<CheckAndImmMatcherNode>(N)->getValue(); 253da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckAndImm" << ClassifyInt(Val) << ", "; 254da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return EmitInt(Val, OS)+1; 255da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 256da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 257da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner case MatcherNode::CheckOrImm: { 258da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner int64_t Val = cast<CheckOrImmMatcherNode>(N)->getValue(); 259da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "OPC_CheckOrImm" << ClassifyInt(Val) << ", "; 260da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return EmitInt(Val, OS)+1; 261da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 26221390d79843050ae8b3226860cadc16ff51d0dcfChris Lattner case MatcherNode::CheckFoldableChainNode: 26321390d79843050ae8b3226860cadc16ff51d0dcfChris Lattner OS << "OPC_CheckFoldableChainNode,\n"; 264e39650a805425ffdbd79692c7d1bad80f7332daeChris Lattner return 1; 2659a747f1305e76025df2323a03b805a284f2cde77Chris Lattner case MatcherNode::CheckChainCompatible: 2669a747f1305e76025df2323a03b805a284f2cde77Chris Lattner OS << "OPC_CheckChainCompatible, " 2679a747f1305e76025df2323a03b805a284f2cde77Chris Lattner << cast<CheckChainCompatibleMatcherNode>(N)->getPreviousOp() << ",\n"; 2689a747f1305e76025df2323a03b805a284f2cde77Chris Lattner return 2; 269845c04273461b2a10754a1455b02916a19ea72aaChris Lattner 270906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner case MatcherNode::EmitInteger: { 271906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner int64_t Val = cast<EmitIntegerMatcherNode>(N)->getValue(); 272906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner OS << "OPC_EmitInteger" << ClassifyInt(Val) << ", " 273906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner << getEnumName(cast<EmitIntegerMatcherNode>(N)->getVT()) << ", "; 274906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner return EmitInt(Val, OS)+2; 275906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner } 2768e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::EmitStringInteger: { 2778e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner const std::string &Val = cast<EmitStringIntegerMatcherNode>(N)->getValue(); 2788e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner // These should always fit into one byte. 2798e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_EmitInteger1, " 2808e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << getEnumName(cast<EmitStringIntegerMatcherNode>(N)->getVT()) << ", " 2818e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << Val << ",\n"; 2828e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return 3; 2838e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner } 284906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner 285845c04273461b2a10754a1455b02916a19ea72aaChris Lattner case MatcherNode::EmitRegister: 286906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner OS << "OPC_EmitRegister, " 287906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner << getEnumName(cast<EmitRegisterMatcherNode>(N)->getVT()) << ", "; 288906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner if (Record *R = cast<EmitRegisterMatcherNode>(N)->getReg()) 289906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner OS << getQualifiedName(R) << ",\n"; 290906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner else 291906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner OS << "0 /*zero_reg*/,\n"; 292906b4995eeab9e6b6fd11a492498c95bba1ce0afChris Lattner return 3; 2938e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 2948e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::EmitConvertToTarget: 2958e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_EmitConvertToTarget, " 2968e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << cast<EmitConvertToTargetMatcherNode>(N)->getSlot() << ",\n"; 2978e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return 2; 2988e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 2998e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::EmitMergeInputChains: { 3008e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner const EmitMergeInputChainsMatcherNode *MN = 3018e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner cast<EmitMergeInputChainsMatcherNode>(N); 3028e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_EmitMergeInputChains, " << MN->getNumNodes() << ", "; 3038e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner for (unsigned i = 0, e = MN->getNumNodes(); i != e; ++i) 3048e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << MN->getNode(i) << ", "; 3058e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << '\n'; 3068e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return 2+MN->getNumNodes(); 3078e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner } 3088e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::EmitCopyToReg: 3098e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_EmitCopyToReg, " 3108e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << cast<EmitCopyToRegMatcherNode>(N)->getSrcSlot() << ", " 3118e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << getQualifiedName(cast<EmitCopyToRegMatcherNode>(N)->getDestPhysReg()) 3128e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << ",\n"; 3138e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return 3; 3148e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::EmitNodeXForm: { 3158e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner const EmitNodeXFormMatcherNode *XF = cast<EmitNodeXFormMatcherNode>(N); 3168e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_EmitNodeXForm, " << getNodeXFormID(XF->getNodeXForm()) << ", " 3178e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << XF->getSlot() << ','; 3188e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS.PadToColumn(CommentIndent) << "// "<<XF->getNodeXForm()->getName()<<'\n'; 3198e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner return 3; 3208e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner } 3218e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 3228e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner case MatcherNode::EmitNode: { 3238e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner const EmitNodeMatcherNode *EN = cast<EmitNodeMatcherNode>(N); 3248e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "OPC_EmitNode, TARGET_OPCODE(" << EN->getOpcodeName() << "), 0"; 3258e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 3268e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner if (EN->hasChain()) OS << "|OPFL_Chain"; 3278e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner if (EN->hasFlag()) OS << "|OPFL_Flag"; 3288e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner if (EN->hasMemRefs()) OS << "|OPFL_MemRefs"; 3298e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner if (EN->getNumFixedArityOperands() != -1) 3308e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "|OPFL_Variadic" << EN->getNumFixedArityOperands(); 3318e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << ",\n"; 3328e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 3338e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS.PadToColumn(Indent*2+4) << EN->getNumVTs() << "/*#VTs*/, "; 3348e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner for (unsigned i = 0, e = EN->getNumVTs(); i != e; ++i) 3358e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << getEnumName(EN->getVT(i)) << ", "; 3368e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 3378e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << EN->getNumOperands() << "/*#Ops*/, "; 3385007e1e43541114f3737939234104b085fbe4acaChris Lattner unsigned NumOperandBytes = 0; 3395007e1e43541114f3737939234104b085fbe4acaChris Lattner for (unsigned i = 0, e = EN->getNumOperands(); i != e; ++i) { 3405007e1e43541114f3737939234104b085fbe4acaChris Lattner // We emit the operand numbers in VBR encoded format, in case the number 3415007e1e43541114f3737939234104b085fbe4acaChris Lattner // is too large to represent with a byte. 3425007e1e43541114f3737939234104b085fbe4acaChris Lattner NumOperandBytes += EmitVBRValue(EN->getOperand(i), OS); 3435007e1e43541114f3737939234104b085fbe4acaChris Lattner } 3448e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << '\n'; 3455007e1e43541114f3737939234104b085fbe4acaChris Lattner return 6+EN->getNumVTs()+NumOperandBytes; 3468e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner } 34702f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner case MatcherNode::MarkFlagResults: { 34802f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner const MarkFlagResultsMatcherNode *CFR = cast<MarkFlagResultsMatcherNode>(N); 34902f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner OS << "OPC_MarkFlagResults, " << CFR->getNumNodes() << ", "; 35002f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner unsigned NumOperandBytes = 0; 35102f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner for (unsigned i = 0, e = CFR->getNumNodes(); i != e; ++i) 35202f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner NumOperandBytes += EmitVBRValue(CFR->getNode(i), OS); 35302f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner OS << '\n'; 35402f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner return 2+NumOperandBytes; 35502f73585f7d018ea3ddcda88c8273ee4e5ea4de3Chris Lattner } 35677f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner case MatcherNode::CompleteMatch: { 35777f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner const CompleteMatchMatcherNode *CM = cast<CompleteMatchMatcherNode>(N); 35877f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner OS << "OPC_CompleteMatch, " << CM->getNumResults() << ", "; 3595007e1e43541114f3737939234104b085fbe4acaChris Lattner unsigned NumResultBytes = 0; 36077f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner for (unsigned i = 0, e = CM->getNumResults(); i != e; ++i) 3615007e1e43541114f3737939234104b085fbe4acaChris Lattner NumResultBytes += EmitVBRValue(CM->getResult(i), OS); 36277f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner OS << '\n'; 36377f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner OS.PadToColumn(Indent*2) << "// Src: " 36477f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner << *CM->getPattern().getSrcPattern() << '\n'; 36577f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner OS.PadToColumn(Indent*2) << "// Dst: " 36677f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner << *CM->getPattern().getDstPattern() << '\n'; 3675007e1e43541114f3737939234104b085fbe4acaChris Lattner return 2 + NumResultBytes; 368da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 36977f2e2724dc488bbf032e87f8f25f333730a0fb5Chris Lattner } 370da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner assert(0 && "Unreachable"); 371da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner return 0; 372da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner} 373da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 374bd8227f5298f0ab7b96203a6d3875e5d26573376Chris Lattner/// EmitMatcherList - Emit the bytes for the specified matcher subtree. 375e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattnerunsigned MatcherTableEmitter:: 3768fbad244bd436163296d81d4f182750e000fd16dChris LattnerEmitMatcherList(const MatcherNode *N, unsigned Indent, unsigned CurrentIdx, 377984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner formatted_raw_ostream &OS) { 378da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner unsigned Size = 0; 3798ef9c7958ad7a23ad15d7ff59e1377aec10ca42aChris Lattner while (N) { 380da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner // Push is a special case since it is binary. 381da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner if (const PushMatcherNode *PMN = dyn_cast<PushMatcherNode>(N)) { 382da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner // We need to encode the child and the offset of the failure code before 383da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner // emitting either of them. Handle this by buffering the output into a 384da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner // string while we get the size. 385da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner SmallString<128> TmpBuf; 386bd8227f5298f0ab7b96203a6d3875e5d26573376Chris Lattner unsigned NextSize; 387da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner { 388da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner raw_svector_ostream OS(TmpBuf); 389da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner formatted_raw_ostream FOS(OS); 390bd8227f5298f0ab7b96203a6d3875e5d26573376Chris Lattner NextSize = EmitMatcherList(cast<PushMatcherNode>(N)->getNext(), 3918fbad244bd436163296d81d4f182750e000fd16dChris Lattner Indent+1, CurrentIdx+2, FOS); 392da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 3933e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner 3943e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner // In the unlikely event that we have something too big to emit with a 3953e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner // one byte offset, regenerate it with a two-byte one. 396bd8227f5298f0ab7b96203a6d3875e5d26573376Chris Lattner if (NextSize > 255) { 3973e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner TmpBuf.clear(); 3983e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner raw_svector_ostream OS(TmpBuf); 3993e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner formatted_raw_ostream FOS(OS); 4003e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner NextSize = EmitMatcherList(cast<PushMatcherNode>(N)->getNext(), 4013e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner Indent+1, CurrentIdx+3, FOS); 4023e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner if (NextSize > 65535) { 4033e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner errs() << 4043e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner "Tblgen internal error: can't handle pattern this complex yet\n"; 4053e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner exit(1); 4063e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner } 407da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 408da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 4098fbad244bd436163296d81d4f182750e000fd16dChris Lattner OS << "/*" << CurrentIdx << "*/"; 410da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS.PadToColumn(Indent*2); 4113e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner 4123e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner if (NextSize < 256) 4133e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner OS << "OPC_Push, " << NextSize << ",\n"; 4143e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner else 4153e22f2d489d6d1cff5123ae606cdea10d2c631f6Chris Lattner OS << "OPC_Push2, " << (NextSize&255) << ", " << (NextSize>>8) << ",\n"; 416da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << TmpBuf.str(); 417da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 4188fbad244bd436163296d81d4f182750e000fd16dChris Lattner Size += 2+NextSize; 4198fbad244bd436163296d81d4f182750e000fd16dChris Lattner CurrentIdx += 2+NextSize; 420da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner N = PMN->getFailure(); 421da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner continue; 422da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 423da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 4248fbad244bd436163296d81d4f182750e000fd16dChris Lattner OS << "/*" << CurrentIdx << "*/"; 4258fbad244bd436163296d81d4f182750e000fd16dChris Lattner unsigned MatcherSize = EmitMatcher(N, Indent, OS); 4268fbad244bd436163296d81d4f182750e000fd16dChris Lattner Size += MatcherSize; 4278fbad244bd436163296d81d4f182750e000fd16dChris Lattner CurrentIdx += MatcherSize; 428da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 429bd8227f5298f0ab7b96203a6d3875e5d26573376Chris Lattner // If there are other nodes in this list, iterate to them, otherwise we're 430da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner // done. 431bd8227f5298f0ab7b96203a6d3875e5d26573376Chris Lattner N = N->getNext(); 432da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner } 4338ef9c7958ad7a23ad15d7ff59e1377aec10ca42aChris Lattner return Size; 434da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner} 435da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 436984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattnervoid MatcherTableEmitter::EmitPredicateFunctions(formatted_raw_ostream &OS) { 437b49985a8499e18675db7e9baf920d6ef4e2b65cfChris Lattner // FIXME: Don't build off the DAGISelEmitter's predicates, emit them directly 438b49985a8499e18675db7e9baf920d6ef4e2b65cfChris Lattner // here into the case stmts. 439b49985a8499e18675db7e9baf920d6ef4e2b65cfChris Lattner 440e609a513f3c072bba28412c681465332a2822d9aChris Lattner // Emit pattern predicates. 441050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << "bool CheckPatternPredicate(unsigned PredNo) const {\n"; 442050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " switch (PredNo) {\n"; 443050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " default: assert(0 && \"Invalid predicate in table?\");\n"; 444050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner for (unsigned i = 0, e = PatternPredicates.size(); i != e; ++i) 445050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " case " << i << ": return " << PatternPredicates[i] << ";\n"; 446050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " }\n"; 447050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << "}\n\n"; 448050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner 449e609a513f3c072bba28412c681465332a2822d9aChris Lattner // Emit Node predicates. 450050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << "bool CheckNodePredicate(SDNode *N, unsigned PredNo) const {\n"; 451050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " switch (PredNo) {\n"; 452050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " default: assert(0 && \"Invalid predicate in table?\");\n"; 453050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner for (unsigned i = 0, e = NodePredicates.size(); i != e; ++i) 454050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " case " << i << ": return " << NodePredicates[i] << "(N);\n"; 455050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << " }\n"; 456050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << "}\n\n"; 457e609a513f3c072bba28412c681465332a2822d9aChris Lattner 458e609a513f3c072bba28412c681465332a2822d9aChris Lattner // Emit CompletePattern matchers. 4598e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner // FIXME: This should be const. 460e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << "bool CheckComplexPattern(SDNode *Root, SDValue N,\n"; 461e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << " unsigned PatternNo, SmallVectorImpl<SDValue> &Result) {\n"; 462e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << " switch (PatternNo) {\n"; 463e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << " default: assert(0 && \"Invalid pattern # in table?\");\n"; 464e609a513f3c072bba28412c681465332a2822d9aChris Lattner for (unsigned i = 0, e = ComplexPatterns.size(); i != e; ++i) { 465e609a513f3c072bba28412c681465332a2822d9aChris Lattner const ComplexPattern &P = *ComplexPatterns[i]; 466e609a513f3c072bba28412c681465332a2822d9aChris Lattner unsigned NumOps = P.getNumOperands(); 4678e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 468e609a513f3c072bba28412c681465332a2822d9aChris Lattner if (P.hasProperty(SDNPHasChain)) 4698e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner ++NumOps; // Get the chained node too. 4708e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 471e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << " case " << i << ":\n"; 472e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << " Result.resize(Result.size()+" << NumOps << ");\n"; 4738e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " return " << P.getSelectFunc(); 4748e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 4758e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner // FIXME: Temporary hack until old isel dies. 4768e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner if (P.hasProperty(SDNPHasChain)) 4778e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "XXX"; 4788e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 4798e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "(Root, N"; 480e609a513f3c072bba28412c681465332a2822d9aChris Lattner for (unsigned i = 0; i != NumOps; ++i) 481e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << ", Result[Result.size()-" << (NumOps-i) << ']'; 482e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << ");\n"; 483e609a513f3c072bba28412c681465332a2822d9aChris Lattner } 484e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << " }\n"; 485e609a513f3c072bba28412c681465332a2822d9aChris Lattner OS << "}\n\n"; 4868e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 4878e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner // Emit SDNodeXForm handlers. 4888e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner // FIXME: This should be const. 4898e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "SDValue RunSDNodeXForm(SDValue V, unsigned XFormNo) {\n"; 4908e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " switch (XFormNo) {\n"; 4918e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " default: assert(0 && \"Invalid xform # in table?\");\n"; 4928e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner 4938e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner // FIXME: The node xform could take SDValue's instead of SDNode*'s. 4948e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner for (unsigned i = 0, e = NodeXForms.size(); i != e; ++i) 4958e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " case " << i << ": return Transform_" << NodeXForms[i]->getName() 4968e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner << "(V.getNode());\n"; 4978e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " }\n"; 4988e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << "}\n\n"; 499050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner} 500050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner 501050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner 502da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattnervoid llvm::EmitMatcherTable(const MatcherNode *Matcher, raw_ostream &O) { 503da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner formatted_raw_ostream OS(O); 504da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 505da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << "// The main instruction selector code.\n"; 506c84edb7bdd345db280c908583d55bdf4e670a225Chris Lattner OS << "SDNode *SelectCode(SDNode *N) {\n"; 507da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner 508984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner MatcherTableEmitter MatcherEmitter; 509e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattner 5108e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " // Opcodes are emitted as 2 bytes, TARGET_OPCODE handles this.\n"; 5118e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " #define TARGET_OPCODE(X) X & 255, unsigned(X) >> 8\n"; 512da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << " static const unsigned char MatcherTable[] = {\n"; 5138fbad244bd436163296d81d4f182750e000fd16dChris Lattner unsigned TotalSize = MatcherEmitter.EmitMatcherList(Matcher, 5, 0, OS); 514da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner OS << " 0\n }; // Total Array size is " << (TotalSize+1) << " bytes\n\n"; 5158e946bea146c15333ce5f9f1b7a9efe5e75fd892Chris Lattner OS << " #undef TARGET_OPCODE\n"; 516e02ea54cfd71dee378ca6b11243710d1760ea7c1Chris Lattner OS << " return SelectCodeCommon(N, MatcherTable,sizeof(MatcherTable));\n}\n"; 517050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner OS << "\n"; 518050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner 519050a03d0f31ee7033d0459dae3c95b8bf12bff89Chris Lattner // Next up, emit the function for node and pattern predicates: 520984e18823e863f2232ccf63f7e84b878dbd55b6fChris Lattner MatcherEmitter.EmitPredicateFunctions(OS); 521da272d1a704bd564272e88cbdbcf14712e3abbdcChris Lattner} 522