AsmMatcherEmitter.cpp revision a2f5e00347641d1b46ce4f65bf9378fecce9be14
1d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar//===- AsmMatcherEmitter.cpp - Generate an assembly matcher ---------------===// 2d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// 3d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// The LLVM Compiler Infrastructure 4d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// 5d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// This file is distributed under the University of Illinois Open Source 6d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// License. See LICENSE.TXT for details. 7d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// 8d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar//===----------------------------------------------------------------------===// 9d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// 10d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// This tablegen backend emits a target specifier matcher for converting parsed 11d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// assembly operands in the MCInst structures. 12d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar// 1320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// The input to the target specific matcher is a list of literal tokens and 1420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// operands. The target specific parser should generally eliminate any syntax 1520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// which is not relevant for matching; for example, comma tokens should have 1620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// already been consumed and eliminated by the parser. Most instructions will 1720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// end up with a single literal token (the instruction name) and some number of 1820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// operands. 1920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 2020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// Some example inputs, for X86: 2120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 'addl' (immediate ...) (register ...) 2220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 'add' (immediate ...) (memory ...) 2320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 'call' '*' %epc 2420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 2520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// The assembly matcher is responsible for converting this input into a precise 2620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// machine instruction (i.e., an instruction with a well defined encoding). This 2720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// mapping has several properties which complicate matching: 2820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 2920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// - It may be ambiguous; many architectures can legally encode particular 3020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// variants of an instruction in different ways (for example, using a smaller 3120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// encoding for small immediates). Such ambiguities should never be 3220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// arbitrarily resolved by the assembler, the assembler is always responsible 3320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// for choosing the "best" available instruction. 3420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 3520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// - It may depend on the subtarget or the assembler context. Instructions 3620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// which are invalid for the current mode, but otherwise unambiguous (e.g., 3720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// an SSE instruction in a file being assembled for i486) should be accepted 3820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// and rejected by the assembler front end. However, if the proper encoding 3920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// for an instruction is dependent on the assembler context then the matcher 4020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// is responsible for selecting the correct machine instruction for the 4120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// current mode. 4220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 4320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// The core matching algorithm attempts to exploit the regularity in most 4420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// instruction sets to quickly determine the set of possibly matching 4520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// instructions, and the simplify the generated code. Additionally, this helps 4620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// to ensure that the ambiguities are intentionally resolved by the user. 4720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 4820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// The matching is divided into two distinct phases: 4920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 5020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 1. Classification: Each operand is mapped to the unique set which (a) 5120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// contains it, and (b) is the largest such subset for which a single 5220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// instruction could match all members. 5320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 5420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// For register classes, we can generate these subgroups automatically. For 5520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// arbitrary operands, we expect the user to define the classes and their 5620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// relations to one another (for example, 8-bit signed immediates as a 5720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// subset of 32-bit immediates). 5820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 5920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// By partitioning the operands in this way, we guarantee that for any 6020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// tuple of classes, any single instruction must match either all or none 6120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// of the sets of operands which could classify to that tuple. 6220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 6320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// In addition, the subset relation amongst classes induces a partial order 6420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// on such tuples, which we use to resolve ambiguities. 6520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 6620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// FIXME: What do we do if a crazy case shows up where this is the wrong 6720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// resolution? 6820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 6920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 2. The input can now be treated as a tuple of classes (static tokens are 7020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// simple singleton sets). Each such tuple should generally map to a single 7120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// instruction (we currently ignore cases where this isn't true, whee!!!), 7220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// which we can emit a simple matcher for. 7320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar// 74d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar//===----------------------------------------------------------------------===// 75d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar 76d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar#include "AsmMatcherEmitter.h" 77d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar#include "CodeGenTarget.h" 78d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar#include "Record.h" 7920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar#include "llvm/ADT/OwningPtr.h" 80a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar#include "llvm/ADT/SmallVector.h" 81606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar#include "llvm/ADT/STLExtras.h" 8220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar#include "llvm/ADT/StringExtras.h" 8320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar#include "llvm/Support/CommandLine.h" 84a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar#include "llvm/Support/Debug.h" 85a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar#include <list> 86b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar#include <map> 87b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar#include <set> 88d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbarusing namespace llvm; 89d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar 902724915c171b08fa9f7f9e54a46ea81708d9c5b2Daniel Dunbarstatic cl::opt<std::string> 91606e8ad796f72824f5509e2657c44eca025d4bafDaniel DunbarMatchPrefix("match-prefix", cl::init(""), 92606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar cl::desc("Only match instructions with the given prefix")); 9320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 94a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar/// FlattenVariants - Flatten an .td file assembly string by selecting the 95a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar/// variant at index \arg N. 96a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbarstatic std::string FlattenVariants(const std::string &AsmString, 97a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar unsigned N) { 98a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar StringRef Cur = AsmString; 99a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar std::string Res = ""; 100a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 101a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar for (;;) { 10253a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar // Find the start of the next variant string. 10353a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar size_t VariantsStart = 0; 10453a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar for (size_t e = Cur.size(); VariantsStart != e; ++VariantsStart) 10553a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar if (Cur[VariantsStart] == '{' && 10620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar (VariantsStart == 0 || (Cur[VariantsStart-1] != '$' && 10720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Cur[VariantsStart-1] != '\\'))) 10853a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar break; 10953a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar 11053a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar // Add the prefix to the result. 11153a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar Res += Cur.slice(0, VariantsStart); 11253a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar if (VariantsStart == Cur.size()) 113a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar break; 114a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 11553a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar ++VariantsStart; // Skip the '{'. 11653a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar 11753a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar // Scan to the end of the variants string. 11853a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar size_t VariantsEnd = VariantsStart; 11953a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar unsigned NestedBraces = 1; 12053a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar for (size_t e = Cur.size(); VariantsEnd != e; ++VariantsEnd) { 12120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (Cur[VariantsEnd] == '}' && Cur[VariantsEnd-1] != '\\') { 12253a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar if (--NestedBraces == 0) 12353a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar break; 12453a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar } else if (Cur[VariantsEnd] == '{') 12553a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar ++NestedBraces; 12653a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar } 127a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 128a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar // Select the Nth variant (or empty). 12953a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar StringRef Selection = Cur.slice(VariantsStart, VariantsEnd); 130a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar for (unsigned i = 0; i != N; ++i) 131a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar Selection = Selection.split('|').second; 132a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar Res += Selection.split('|').first; 133a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 13453a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar assert(VariantsEnd != Cur.size() && 13553a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar "Unterminated variants in assembly string!"); 13653a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar Cur = Cur.substr(VariantsEnd + 1); 137a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 138a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 139a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar return Res; 140a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar} 141a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 142a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar/// TokenizeAsmString - Tokenize a simplified assembly string. 14320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbarstatic void TokenizeAsmString(const StringRef &AsmString, 144a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar SmallVectorImpl<StringRef> &Tokens) { 145a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar unsigned Prev = 0; 146a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar bool InTok = true; 147a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar for (unsigned i = 0, e = AsmString.size(); i != e; ++i) { 148a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar switch (AsmString[i]) { 14920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar case '[': 15020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar case ']': 151a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar case '*': 152a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar case '!': 153a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar case ' ': 154a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar case '\t': 155a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar case ',': 156a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar if (InTok) { 15720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.slice(Prev, i)); 158a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar InTok = false; 159a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 16020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (!isspace(AsmString[i]) && AsmString[i] != ',') 16120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.substr(i, 1)); 162a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar Prev = i + 1; 163a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar break; 16420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 16520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar case '\\': 16620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (InTok) { 16720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.slice(Prev, i)); 16820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InTok = false; 16920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 17020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar ++i; 17120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar assert(i != AsmString.size() && "Invalid quoted character"); 17220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.substr(i, 1)); 17320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Prev = i + 1; 17420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar break; 17520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 17620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar case '$': { 17720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // If this isn't "${", treat like a normal token. 17820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (i + 1 == AsmString.size() || AsmString[i + 1] != '{') { 17920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (InTok) { 18020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.slice(Prev, i)); 18120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InTok = false; 18220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 18320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Prev = i; 18420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar break; 18520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 18620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 18720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (InTok) { 18820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.slice(Prev, i)); 18920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InTok = false; 19020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 19120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 19220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar StringRef::iterator End = 19320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::find(AsmString.begin() + i, AsmString.end(), '}'); 19420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar assert(End != AsmString.end() && "Missing brace in operand reference!"); 19520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar size_t EndPos = End - AsmString.begin(); 19620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.slice(i, EndPos+1)); 19720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Prev = EndPos + 1; 19820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar i = EndPos; 19920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar break; 20020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 201a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 202a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar default: 203a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar InTok = true; 204a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 205a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 206a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar if (InTok && Prev != AsmString.size()) 20720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens.push_back(AsmString.substr(Prev)); 208a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar} 209a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 21020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbarstatic bool IsAssemblerInstruction(const StringRef &Name, 21120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar const CodeGenInstruction &CGI, 21220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar const SmallVectorImpl<StringRef> &Tokens) { 2137417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar // Ignore "codegen only" instructions. 2147417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar if (CGI.TheDef->getValueAsBit("isCodeGenOnly")) 2157417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar return false; 2167417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar 2177417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar // Ignore pseudo ops. 21820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // 2197417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar // FIXME: This is a hack; can we convert these instructions to set the 2207417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar // "codegen only" bit instead? 22120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (const RecordVal *Form = CGI.TheDef->getValue("Form")) 22220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (Form->getValue()->getAsString() == "Pseudo") 22320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar return false; 22420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 22572fa87f0cfe22faa575280dbac8dbc9225dfb12dDaniel Dunbar // Ignore "Int_*" and "*_Int" instructions, which are internal aliases. 22672fa87f0cfe22faa575280dbac8dbc9225dfb12dDaniel Dunbar // 22772fa87f0cfe22faa575280dbac8dbc9225dfb12dDaniel Dunbar // FIXME: This is a total hack. 22872fa87f0cfe22faa575280dbac8dbc9225dfb12dDaniel Dunbar if (StringRef(Name).startswith("Int_") || StringRef(Name).endswith("_Int")) 22972fa87f0cfe22faa575280dbac8dbc9225dfb12dDaniel Dunbar return false; 23072fa87f0cfe22faa575280dbac8dbc9225dfb12dDaniel Dunbar 23120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Ignore instructions with no .s string. 23220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // 23320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // FIXME: What are these? 23420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (CGI.AsmString.empty()) 23520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar return false; 23620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 23720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // FIXME: Hack; ignore any instructions with a newline in them. 23820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (std::find(CGI.AsmString.begin(), 23920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar CGI.AsmString.end(), '\n') != CGI.AsmString.end()) 24020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar return false; 24120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 24220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Ignore instructions with attributes, these are always fake instructions for 24320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // simplifying codegen. 24420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // 24520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // FIXME: Is this true? 24620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // 2477417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar // Also, check for instructions which reference the operand multiple times; 2487417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar // this implies a constraint we would not honor. 24920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::set<std::string> OperandNames; 25020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 1, e = Tokens.size(); i < e; ++i) { 25120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (Tokens[i][0] == '$' && 25220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::find(Tokens[i].begin(), 25320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Tokens[i].end(), ':') != Tokens[i].end()) { 25420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar DEBUG({ 25520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar errs() << "warning: '" << Name << "': " 25620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar << "ignoring instruction; operand with attribute '" 2577417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar << Tokens[i] << "'\n"; 25820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar }); 25920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar return false; 26020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 26122be5225ff88ffaab83c36fa133e70586b91166dDaniel Dunbar 26220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (Tokens[i][0] == '$' && !OperandNames.insert(Tokens[i]).second) { 2637417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar std::string Err = "'" + Name.str() + "': " + 2647417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar "invalid assembler instruction; tied operand '" + Tokens[i].str() + "'"; 2657417b761c2d88335bd77d38911ff8d323fc4a4f2Daniel Dunbar throw TGError(CGI.TheDef->getLoc(), Err); 26620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 26720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 26822be5225ff88ffaab83c36fa133e70586b91166dDaniel Dunbar 26920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar return true; 27020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar} 27122be5225ff88ffaab83c36fa133e70586b91166dDaniel Dunbar 27220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbarnamespace { 27322be5225ff88ffaab83c36fa133e70586b91166dDaniel Dunbar 274a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar/// ClassInfo - Helper class for storing the information about a particular 275a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar/// class of operands which can be matched. 276a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarstruct ClassInfo { 277606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar enum ClassInfoKind { 278ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// Invalid kind, for use as a sentinel value. 279ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar Invalid = 0, 280ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 281ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// The class for a particular token. 282ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar Token, 283ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 284ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// The (first) register class, subsequent register classes are 285ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// RegisterClass0+1, and so on. 286ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RegisterClass0, 287ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 288ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// The (first) user defined class, subsequent user defined classes are 289ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// UserClass0+1, and so on. 290ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar UserClass0 = 1<<16 291606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar }; 292606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 293606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar /// Kind - The class kind, which is either a predefined kind, or (UserClass0 + 294606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar /// N) for the Nth user defined class. 295606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar unsigned Kind; 296a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 297ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// SuperClasses - The super classes of this class. Note that for simplicities 298ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// sake user operands only record their immediate super class, while register 299ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// operands include all superclasses. 300ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::vector<ClassInfo*> SuperClasses; 3015fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar 3026745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar /// Name - The full class name, suitable for use in an enum. 303a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::string Name; 304a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 3056745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar /// ClassName - The unadorned generic name for this class (e.g., Token). 3066745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar std::string ClassName; 3076745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar 308a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// ValueName - The name of the value this class represents; for a token this 309a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// is the literal token string, for an operand it is the TableGen class (or 310a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// empty if this is a derived class). 311a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::string ValueName; 312a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 313a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// PredicateMethod - The name of the operand method to test whether the 314ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// operand matches this class; this is not valid for Token or register kinds. 315a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::string PredicateMethod; 316a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 317a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// RenderMethod - The name of the operand method to add this operand to an 318ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// MCInst; this is not valid for Token or register kinds. 319a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::string RenderMethod; 320606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 3218409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar /// For register classes, the records for all the registers in this class. 3228409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar std::set<Record*> Registers; 3238409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar 3248409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbarpublic: 325ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// isRegisterClass() - Check if this is a register class. 326ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar bool isRegisterClass() const { 327ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return Kind >= RegisterClass0 && Kind < UserClass0; 328ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 329ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 3305fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar /// isUserClass() - Check if this is a user defined class. 3315fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar bool isUserClass() const { 3325fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar return Kind >= UserClass0; 3335fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar } 3345fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar 335ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// isRelatedTo - Check whether this class is "related" to \arg RHS. Classes 336ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// are related if they are in the same class hierarchy. 337ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar bool isRelatedTo(const ClassInfo &RHS) const { 338ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Tokens are only related to tokens. 339ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (Kind == Token || RHS.Kind == Token) 340ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return Kind == Token && RHS.Kind == Token; 341ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 3428409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar // Registers classes are only related to registers classes, and only if 3438409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar // their intersection is non-empty. 3448409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar if (isRegisterClass() || RHS.isRegisterClass()) { 3458409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar if (!isRegisterClass() || !RHS.isRegisterClass()) 3468409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar return false; 3478409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar 3488409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar std::set<Record*> Tmp; 3498409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar std::insert_iterator< std::set<Record*> > II(Tmp, Tmp.begin()); 3508409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar std::set_intersection(Registers.begin(), Registers.end(), 3518409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar RHS.Registers.begin(), RHS.Registers.end(), 3528409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar II); 3538409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar 3548409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar return !Tmp.empty(); 3558409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar } 356ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 357ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Otherwise we have two users operands; they are related if they are in the 358ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // same class hierarchy. 3598409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar // 3608409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar // FIXME: This is an oversimplification, they should only be related if they 3618409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar // intersect, however we don't have that information. 362ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar assert(isUserClass() && RHS.isUserClass() && "Unexpected class!"); 363ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar const ClassInfo *Root = this; 364ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar while (!Root->SuperClasses.empty()) 365ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar Root = Root->SuperClasses.front(); 366ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 3678409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar const ClassInfo *RHSRoot = &RHS; 368ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar while (!RHSRoot->SuperClasses.empty()) 369ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RHSRoot = RHSRoot->SuperClasses.front(); 370ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 371ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return Root == RHSRoot; 372ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 373ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 374ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// isSubsetOf - Test whether this class is a subset of \arg RHS; 375ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar bool isSubsetOf(const ClassInfo &RHS) const { 376ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // This is a subset of RHS if it is the same class... 377ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (this == &RHS) 378ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return true; 379ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 380ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // ... or if any of its super classes are a subset of RHS. 381ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::vector<ClassInfo*>::const_iterator it = SuperClasses.begin(), 382ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = SuperClasses.end(); it != ie; ++it) 383ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if ((*it)->isSubsetOf(RHS)) 384ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return true; 385ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 386ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return false; 3875fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar } 3885fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar 389606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar /// operator< - Compare two classes. 390606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar bool operator<(const ClassInfo &RHS) const { 391ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Unrelated classes can be ordered by kind. 392ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!isRelatedTo(RHS)) 393606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar return Kind < RHS.Kind; 394606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 395606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar switch (Kind) { 3966745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar case Invalid: 3976745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar assert(0 && "Invalid kind!"); 398606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar case Token: 3995fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar // Tokens are comparable by value. 400606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar // 401606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar // FIXME: Compare by enum value. 402606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar return ValueName < RHS.ValueName; 403606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 404606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar default: 405ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // This class preceeds the RHS if it is a proper subset of the RHS. 406ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return this != &RHS && isSubsetOf(RHS); 407606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar } 408606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar } 409a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar}; 410a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 411b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar/// InstructionInfo - Helper class for storing the necessary information for an 412b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar/// instruction which is capable of being matched. 41320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbarstruct InstructionInfo { 41420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar struct Operand { 415a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// The unique class instance this operand should match. 416a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ClassInfo *Class; 417a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 418a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// The original operand this corresponds to, if any. 419fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer const CodeGenInstruction::OperandInfo *OperandInfo; 42020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar }; 42120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 42220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar /// InstrName - The target name for this instruction. 42320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::string InstrName; 42420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 42520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar /// Instr - The instruction this matches. 42620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar const CodeGenInstruction *Instr; 42720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 42820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar /// AsmString - The assembly string for this instruction (with variants 42920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar /// removed). 43020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::string AsmString; 43120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 43220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar /// Tokens - The tokenized assembly pattern that this instruction matches. 43320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar SmallVector<StringRef, 4> Tokens; 43420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 43520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar /// Operands - The operands that this instruction matches. 43620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar SmallVector<Operand, 4> Operands; 43720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 438b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar /// ConversionFnKind - The enum value which is passed to the generated 439b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar /// ConvertToMCInst to convert parsed operands into an MCInst for this 440b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar /// function. 441b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar std::string ConversionFnKind; 44220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 443606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar /// operator< - Compare two instructions. 444606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar bool operator<(const InstructionInfo &RHS) const { 445606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar if (Operands.size() != RHS.Operands.size()) 446606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar return Operands.size() < RHS.Operands.size(); 4472b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar 448db2ddb5dc57319eff249144f1d9a553a3278d2e0Daniel Dunbar // Compare lexicographically by operand. The matcher validates that other 449db2ddb5dc57319eff249144f1d9a553a3278d2e0Daniel Dunbar // orderings wouldn't be ambiguous using \see CouldMatchAmiguouslyWith(). 450db2ddb5dc57319eff249144f1d9a553a3278d2e0Daniel Dunbar for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 4512b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar if (*Operands[i].Class < *RHS.Operands[i].Class) 4522b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar return true; 453db2ddb5dc57319eff249144f1d9a553a3278d2e0Daniel Dunbar if (*RHS.Operands[i].Class < *Operands[i].Class) 454db2ddb5dc57319eff249144f1d9a553a3278d2e0Daniel Dunbar return false; 455db2ddb5dc57319eff249144f1d9a553a3278d2e0Daniel Dunbar } 456db2ddb5dc57319eff249144f1d9a553a3278d2e0Daniel Dunbar 4572b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar return false; 4582b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar } 459606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 4602b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar /// CouldMatchAmiguouslyWith - Check whether this instruction could 4612b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar /// ambiguously match the same set of operands as \arg RHS (without being a 4622b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar /// strictly superior match). 4632b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar bool CouldMatchAmiguouslyWith(const InstructionInfo &RHS) { 4642b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar // The number of operands is unambiguous. 4652b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar if (Operands.size() != RHS.Operands.size()) 4662b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar return false; 467606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 4681402f0b2cac017ab997f71ab4909a2ccfea7be4bDaniel Dunbar // Otherwise, make sure the ordering of the two instructions is unambiguous 4691402f0b2cac017ab997f71ab4909a2ccfea7be4bDaniel Dunbar // by checking that either (a) a token or operand kind discriminates them, 4701402f0b2cac017ab997f71ab4909a2ccfea7be4bDaniel Dunbar // or (b) the ordering among equivalent kinds is consistent. 4711402f0b2cac017ab997f71ab4909a2ccfea7be4bDaniel Dunbar 4722b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar // Tokens and operand kinds are unambiguous (assuming a correct target 4732b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar // specific parser). 474606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar for (unsigned i = 0, e = Operands.size(); i != e; ++i) 4752b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar if (Operands[i].Class->Kind != RHS.Operands[i].Class->Kind || 4762b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar Operands[i].Class->Kind == ClassInfo::Token) 4772b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar if (*Operands[i].Class < *RHS.Operands[i].Class || 4782b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar *RHS.Operands[i].Class < *Operands[i].Class) 4792b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar return false; 4802b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar 4812b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar // Otherwise, this operand could commute if all operands are equivalent, or 4822b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar // there is a pair of operands that compare less than and a pair that 4832b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar // compare greater than. 4842b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar bool HasLT = false, HasGT = false; 4852b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 486606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar if (*Operands[i].Class < *RHS.Operands[i].Class) 4872b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar HasLT = true; 4882b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar if (*RHS.Operands[i].Class < *Operands[i].Class) 4892b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar HasGT = true; 4902b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar } 491606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 4922b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar return !(HasLT ^ HasGT); 493606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar } 494606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 49520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbarpublic: 49620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar void dump(); 49720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar}; 49820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 499a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarclass AsmMatcherInfo { 500a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarpublic: 50159fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar /// The tablegen AsmParser record. 50259fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar Record *AsmParser; 50359fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar 50459fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar /// The AsmParser "CommentDelimiter" value. 50559fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar std::string CommentDelimiter; 50659fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar 50759fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar /// The AsmParser "RegisterPrefix" value. 50859fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar std::string RegisterPrefix; 50959fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar 510a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// The classes which are needed for matching. 511a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::vector<ClassInfo*> Classes; 512a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 513a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// The information on the instruction to match. 514a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::vector<InstructionInfo*> Instructions; 515a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 516ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// Map of Register records to their class information. 517ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::map<Record*, ClassInfo*> RegisterClasses; 518ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 519a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarprivate: 520a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// Map of token to class information which has already been constructed. 521a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::map<std::string, ClassInfo*> TokenClasses; 522a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 523ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// Map of RegisterClass records to their class information. 524ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::map<Record*, ClassInfo*> RegisterClassClasses; 525a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 526338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar /// Map of AsmOperandClass records to their class information. 527338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar std::map<Record*, ClassInfo*> AsmOperandClasses; 5286745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar 529a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarprivate: 530a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// getTokenClass - Lookup or create the class for the given token. 531a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ClassInfo *getTokenClass(const StringRef &Token); 532a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 533a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// getOperandClass - Lookup or create the class for the given operand. 534a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ClassInfo *getOperandClass(const StringRef &Token, 535a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar const CodeGenInstruction::OperandInfo &OI); 536a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 537ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// BuildRegisterClasses - Build the ClassInfo* instances for register 538ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// classes. 5391095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar void BuildRegisterClasses(CodeGenTarget &Target, 5401095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar std::set<std::string> &SingletonRegisterNames); 541ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 542ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// BuildOperandClasses - Build the ClassInfo* instances for user defined 543ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar /// operand classes. 544ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar void BuildOperandClasses(CodeGenTarget &Target); 545ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 546a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarpublic: 54759fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar AsmMatcherInfo(Record *_AsmParser); 54859fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar 549a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar /// BuildInfo - Construct the various tables used during matching. 550a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar void BuildInfo(CodeGenTarget &Target); 551a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar}; 552a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 55320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar} 55420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 55520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbarvoid InstructionInfo::dump() { 55620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar errs() << InstrName << " -- " << "flattened:\"" << AsmString << '\"' 55720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar << ", tokens:["; 55820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = Tokens.size(); i != e; ++i) { 55920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar errs() << Tokens[i]; 56020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (i + 1 != e) 56120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar errs() << ", "; 56222be5225ff88ffaab83c36fa133e70586b91166dDaniel Dunbar } 56320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar errs() << "]\n"; 564a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 56520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = Operands.size(); i != e; ++i) { 56620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Operand &Op = Operands[i]; 5676745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar errs() << " op[" << i << "] = " << Op.Class->ClassName << " - "; 568a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar if (Op.Class->Kind == ClassInfo::Token) { 56920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar errs() << '\"' << Tokens[i] << "\"\n"; 57020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar continue; 57120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 572a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 5731095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (!Op.OperandInfo) { 5741095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar errs() << "(singleton register)\n"; 5751095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar continue; 5761095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 5771095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 578fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer const CodeGenInstruction::OperandInfo &OI = *Op.OperandInfo; 57920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar errs() << OI.Name << " " << OI.Rec->getName() 58020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar << " (" << OI.MIOperandNo << ", " << OI.MINumOperands << ")\n"; 58120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 58220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar} 583a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 584a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarstatic std::string getEnumNameForToken(const StringRef &Str) { 585a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::string Res; 586a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 587a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar for (StringRef::iterator it = Str.begin(), ie = Str.end(); it != ie; ++it) { 588a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar switch (*it) { 589a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar case '*': Res += "_STAR_"; break; 590a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar case '%': Res += "_PCT_"; break; 591a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar case ':': Res += "_COLON_"; break; 592a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 593a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar default: 594a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar if (isalnum(*it)) { 595a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Res += *it; 596a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } else { 597a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Res += "_" + utostr((unsigned) *it) + "_"; 598a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 599a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 600a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 60120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 602a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar return Res; 603a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar} 604a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 6051095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar/// getRegisterRecord - Get the register record for \arg name, or 0. 6061095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbarstatic Record *getRegisterRecord(CodeGenTarget &Target, const StringRef &Name) { 6071095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar for (unsigned i = 0, e = Target.getRegisters().size(); i != e; ++i) { 6081095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar const CodeGenRegister &Reg = Target.getRegisters()[i]; 6091095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (Name == Reg.TheDef->getValueAsString("AsmName")) 6101095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar return Reg.TheDef; 6111095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 6121095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 6131095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar return 0; 6141095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar} 6151095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 616a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel DunbarClassInfo *AsmMatcherInfo::getTokenClass(const StringRef &Token) { 617a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ClassInfo *&Entry = TokenClasses[Token]; 618a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 619a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar if (!Entry) { 620a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Entry = new ClassInfo(); 621a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Entry->Kind = ClassInfo::Token; 6226745d42e8e51ba6b9546d6fa62e0c1b1e0f3982aDaniel Dunbar Entry->ClassName = "Token"; 623a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Entry->Name = "MCK_" + getEnumNameForToken(Token); 624a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Entry->ValueName = Token; 625a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Entry->PredicateMethod = "<invalid>"; 626a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Entry->RenderMethod = "<invalid>"; 627a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Classes.push_back(Entry); 628a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 629a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 630a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar return Entry; 631a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar} 632a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 633a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel DunbarClassInfo * 634a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel DunbarAsmMatcherInfo::getOperandClass(const StringRef &Token, 635a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar const CodeGenInstruction::OperandInfo &OI) { 636ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (OI.Rec->isSubClassOf("RegisterClass")) { 637ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ClassInfo *CI = RegisterClassClasses[OI.Rec]; 638ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 639ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!CI) { 640ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar PrintError(OI.Rec->getLoc(), "register class has no class info!"); 641ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar throw std::string("ERROR: Missing register class!"); 642ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 643ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 644ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar return CI; 645ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 646338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar 647338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar assert(OI.Rec->isSubClassOf("Operand") && "Unexpected operand!"); 648338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar Record *MatchClass = OI.Rec->getValueAsDef("ParserMatchClass"); 649338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar ClassInfo *CI = AsmOperandClasses[MatchClass]; 6505fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar 651338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar if (!CI) { 652338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar PrintError(OI.Rec->getLoc(), "operand has no match class!"); 653338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar throw std::string("ERROR: Missing match class!"); 654a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 655a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 656338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar return CI; 657338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar} 658338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar 6591095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbarvoid AsmMatcherInfo::BuildRegisterClasses(CodeGenTarget &Target, 6601095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar std::set<std::string> 6611095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar &SingletonRegisterNames) { 662ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::vector<CodeGenRegisterClass> RegisterClasses; 663ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::vector<CodeGenRegister> Registers; 664338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar 665ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RegisterClasses = Target.getRegisterClasses(); 666ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar Registers = Target.getRegisters(); 667338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar 668ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // The register sets used for matching. 669ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::set< std::set<Record*> > RegisterSets; 670ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 671ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Gather the defined sets. 672ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::vector<CodeGenRegisterClass>::iterator it = RegisterClasses.begin(), 673ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = RegisterClasses.end(); it != ie; ++it) 674ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RegisterSets.insert(std::set<Record*>(it->Elements.begin(), 675ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar it->Elements.end())); 6761095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 6771095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Add any required singleton sets. 6781095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar for (std::set<std::string>::iterator it = SingletonRegisterNames.begin(), 6791095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar ie = SingletonRegisterNames.end(); it != ie; ++it) 6801095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (Record *Rec = getRegisterRecord(Target, *it)) 6811095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar RegisterSets.insert(std::set<Record*>(&Rec, &Rec + 1)); 6821095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 683ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Introduce derived sets where necessary (when a register does not determine 684ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // a unique register set class), and build the mapping of registers to the set 685ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // they should classify to. 686ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::map<Record*, std::set<Record*> > RegisterMap; 687ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::vector<CodeGenRegister>::iterator it = Registers.begin(), 688ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = Registers.end(); it != ie; ++it) { 689ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CodeGenRegister &CGR = *it; 690ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Compute the intersection of all sets containing this register. 691ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::set<Record*> ContainingSet; 692ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 693ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::set< std::set<Record*> >::iterator it = RegisterSets.begin(), 694ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = RegisterSets.end(); it != ie; ++it) { 695ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!it->count(CGR.TheDef)) 696ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar continue; 697ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 698ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (ContainingSet.empty()) { 699ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ContainingSet = *it; 700ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } else { 701ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::set<Record*> Tmp; 702ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::swap(Tmp, ContainingSet); 703ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::insert_iterator< std::set<Record*> > II(ContainingSet, 704ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ContainingSet.begin()); 705ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::set_intersection(Tmp.begin(), Tmp.end(), it->begin(), it->end(), 706ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar II); 707ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 708ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 709ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 710ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!ContainingSet.empty()) { 711ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RegisterSets.insert(ContainingSet); 712ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RegisterMap.insert(std::make_pair(CGR.TheDef, ContainingSet)); 713ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 714ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 715ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 716ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Construct the register classes. 717ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::map<std::set<Record*>, ClassInfo*> RegisterSetClasses; 718ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar unsigned Index = 0; 719ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::set< std::set<Record*> >::iterator it = RegisterSets.begin(), 720ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = RegisterSets.end(); it != ie; ++it, ++Index) { 721ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ClassInfo *CI = new ClassInfo(); 722ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->Kind = ClassInfo::RegisterClass0 + Index; 723ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->ClassName = "Reg" + utostr(Index); 724ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->Name = "MCK_Reg" + utostr(Index); 725ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->ValueName = ""; 726ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->PredicateMethod = ""; // unused 727ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->RenderMethod = "addRegOperands"; 7288409bfbbc306bc051fbd8b049804103ca7df2f63Daniel Dunbar CI->Registers = *it; 729ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar Classes.push_back(CI); 730ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RegisterSetClasses.insert(std::make_pair(*it, CI)); 731ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 732ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 733ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Find the superclasses; we could compute only the subgroup lattice edges, 734ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // but there isn't really a point. 735ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::set< std::set<Record*> >::iterator it = RegisterSets.begin(), 736ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = RegisterSets.end(); it != ie; ++it) { 737ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ClassInfo *CI = RegisterSetClasses[*it]; 738ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::set< std::set<Record*> >::iterator it2 = RegisterSets.begin(), 739ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie2 = RegisterSets.end(); it2 != ie2; ++it2) 740ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (*it != *it2 && 741ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar std::includes(it2->begin(), it2->end(), it->begin(), it->end())) 742ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->SuperClasses.push_back(RegisterSetClasses[*it2]); 743ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 744ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 745ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Name the register classes which correspond to a user defined RegisterClass. 746ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::vector<CodeGenRegisterClass>::iterator it = RegisterClasses.begin(), 747ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = RegisterClasses.end(); it != ie; ++it) { 748ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ClassInfo *CI = RegisterSetClasses[std::set<Record*>(it->Elements.begin(), 749ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar it->Elements.end())]; 750ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (CI->ValueName.empty()) { 751ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->ClassName = it->getName(); 752ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->Name = "MCK_" + it->getName(); 753ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->ValueName = it->getName(); 754ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } else 755ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->ValueName = CI->ValueName + "," + it->getName(); 756ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 757ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar RegisterClassClasses.insert(std::make_pair(it->TheDef, CI)); 758ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 759ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 760ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Populate the map for individual registers. 761ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::map<Record*, std::set<Record*> >::iterator it = RegisterMap.begin(), 762ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = RegisterMap.end(); it != ie; ++it) 763ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar this->RegisterClasses[it->first] = RegisterSetClasses[it->second]; 7641095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 7651095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Name the register classes which correspond to singleton registers. 7661095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar for (std::set<std::string>::iterator it = SingletonRegisterNames.begin(), 7671095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar ie = SingletonRegisterNames.end(); it != ie; ++it) { 7681095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (Record *Rec = getRegisterRecord(Target, *it)) { 7691095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar ClassInfo *CI = this->RegisterClasses[Rec]; 7701095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar assert(CI && "Missing singleton register class info!"); 7711095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 7721095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (CI->ValueName.empty()) { 7731095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar CI->ClassName = Rec->getName(); 7741095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar CI->Name = "MCK_" + Rec->getName(); 7751095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar CI->ValueName = Rec->getName(); 7761095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } else 7771095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar CI->ValueName = CI->ValueName + "," + Rec->getName(); 7781095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 7791095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 780ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar} 781ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 782ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbarvoid AsmMatcherInfo::BuildOperandClasses(CodeGenTarget &Target) { 783338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar std::vector<Record*> AsmOperands; 784338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar AsmOperands = Records.getAllDerivedDefinitions("AsmOperandClass"); 785a2f5e00347641d1b46ce4f65bf9378fecce9be14Daniel Dunbar 786a2f5e00347641d1b46ce4f65bf9378fecce9be14Daniel Dunbar // Pre-populate AsmOperandClasses map. 787a2f5e00347641d1b46ce4f65bf9378fecce9be14Daniel Dunbar for (std::vector<Record*>::iterator it = AsmOperands.begin(), 788a2f5e00347641d1b46ce4f65bf9378fecce9be14Daniel Dunbar ie = AsmOperands.end(); it != ie; ++it) 789a2f5e00347641d1b46ce4f65bf9378fecce9be14Daniel Dunbar AsmOperandClasses[*it] = new ClassInfo(); 790a2f5e00347641d1b46ce4f65bf9378fecce9be14Daniel Dunbar 791338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar unsigned Index = 0; 792338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar for (std::vector<Record*>::iterator it = AsmOperands.begin(), 793338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar ie = AsmOperands.end(); it != ie; ++it, ++Index) { 794a2f5e00347641d1b46ce4f65bf9378fecce9be14Daniel Dunbar ClassInfo *CI = AsmOperandClasses[*it]; 795338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar CI->Kind = ClassInfo::UserClass0 + Index; 796338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar 797338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar Init *Super = (*it)->getValueInit("SuperClass"); 798338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar if (DefInit *DI = dynamic_cast<DefInit*>(Super)) { 799ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ClassInfo *SC = AsmOperandClasses[DI->getDef()]; 800ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!SC) 801338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar PrintError((*it)->getLoc(), "Invalid super class reference!"); 802ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar else 803ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar CI->SuperClasses.push_back(SC); 804a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } else { 805338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar assert(dynamic_cast<UnsetInit*>(Super) && "Unexpected SuperClass field!"); 806a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 807338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar CI->ClassName = (*it)->getValueAsString("Name"); 808338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar CI->Name = "MCK_" + CI->ClassName; 809338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar CI->ValueName = (*it)->getName(); 8105c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar 8115c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar // Get or construct the predicate method name. 8125c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar Init *PMName = (*it)->getValueInit("PredicateMethod"); 8135c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar if (StringInit *SI = dynamic_cast<StringInit*>(PMName)) { 8145c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar CI->PredicateMethod = SI->getValue(); 8155c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar } else { 8165c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar assert(dynamic_cast<UnsetInit*>(PMName) && 8175c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar "Unexpected PredicateMethod field!"); 8185c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar CI->PredicateMethod = "is" + CI->ClassName; 8195c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar } 8205c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar 8215c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar // Get or construct the render method name. 8225c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar Init *RMName = (*it)->getValueInit("RenderMethod"); 8235c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar if (StringInit *SI = dynamic_cast<StringInit*>(RMName)) { 8245c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar CI->RenderMethod = SI->getValue(); 8255c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar } else { 8265c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar assert(dynamic_cast<UnsetInit*>(RMName) && 8275c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar "Unexpected RenderMethod field!"); 8285c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar CI->RenderMethod = "add" + CI->ClassName + "Operands"; 8295c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar } 8305c468e3d7006e854fd41b29d5539a7adcee53904Daniel Dunbar 831338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar AsmOperandClasses[*it] = CI; 832338825c1928b956b2cbcc2c165a60afddd100398Daniel Dunbar Classes.push_back(CI); 833a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 834ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar} 835ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 83659fc42debd571bbafc52c20bc418fdc3f4d00188Daniel DunbarAsmMatcherInfo::AsmMatcherInfo(Record *_AsmParser) 83759fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar : AsmParser(_AsmParser), 83859fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar CommentDelimiter(AsmParser->getValueAsString("CommentDelimiter")), 83959fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar RegisterPrefix(AsmParser->getValueAsString("RegisterPrefix")) 84059fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar{ 84159fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar} 84259fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar 843ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbarvoid AsmMatcherInfo::BuildInfo(CodeGenTarget &Target) { 8441095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Parse the instructions; we need to do this first so that we can gather the 8451095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // singleton register classes. 8461095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar std::set<std::string> SingletonRegisterNames; 847a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar for (std::map<std::string, CodeGenInstruction>::const_iterator 848a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar it = Target.getInstructions().begin(), 849a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ie = Target.getInstructions().end(); 850a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar it != ie; ++it) { 851a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar const CodeGenInstruction &CGI = it->second; 852a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 853606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar if (!StringRef(it->first).startswith(MatchPrefix)) 85453a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar continue; 85553a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar 85620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar OwningPtr<InstructionInfo> II(new InstructionInfo); 85720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 85820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar II->InstrName = it->first; 85920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar II->Instr = &it->second; 86020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar II->AsmString = FlattenVariants(CGI.AsmString, 0); 86120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 86259fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar // Remove comments from the asm string. 86359fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar if (!CommentDelimiter.empty()) { 86459fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar size_t Idx = StringRef(II->AsmString).find(CommentDelimiter); 86559fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar if (Idx != StringRef::npos) 86659fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar II->AsmString = II->AsmString.substr(0, Idx); 86759fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar } 86859fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar 86920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar TokenizeAsmString(II->AsmString, II->Tokens); 870a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 87120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Ignore instructions which shouldn't be matched. 87220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (!IsAssemblerInstruction(it->first, CGI, II->Tokens)) 873a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar continue; 874a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 8751095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Collect singleton registers, if used. 8761095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (!RegisterPrefix.empty()) { 8771095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar for (unsigned i = 0, e = II->Tokens.size(); i != e; ++i) { 8781095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (II->Tokens[i].startswith(RegisterPrefix)) { 8791095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar StringRef RegName = II->Tokens[i].substr(RegisterPrefix.size()); 8801095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar Record *Rec = getRegisterRecord(Target, RegName); 8811095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 8821095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (!Rec) { 8831095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar std::string Err = "unable to find register for '" + RegName.str() + 8841095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar "' (which matches register prefix)"; 8851095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar throw TGError(CGI.TheDef->getLoc(), Err); 8861095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 8871095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 8881095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar SingletonRegisterNames.insert(RegName); 8891095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 8901095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 8911095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 8921095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 8931095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar Instructions.push_back(II.take()); 8941095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 8951095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 8961095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Build info for the register classes. 8971095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar BuildRegisterClasses(Target, SingletonRegisterNames); 8981095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 8991095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Build info for the user defined assembly operand classes. 9001095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar BuildOperandClasses(Target); 9011095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 9021095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Build the instruction information. 9031095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar for (std::vector<InstructionInfo*>::iterator it = Instructions.begin(), 9041095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar ie = Instructions.end(); it != ie; ++it) { 9051095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar InstructionInfo *II = *it; 9061095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 90720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = II->Tokens.size(); i != e; ++i) { 90820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar StringRef Token = II->Tokens[i]; 90920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 9101095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Check for singleton registers. 9111095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar if (!RegisterPrefix.empty() && Token.startswith(RegisterPrefix)) { 9121095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar StringRef RegName = II->Tokens[i].substr(RegisterPrefix.size()); 9131095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar InstructionInfo::Operand Op; 9141095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar Op.Class = RegisterClasses[getRegisterRecord(Target, RegName)]; 9151095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar Op.OperandInfo = 0; 9161095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar assert(Op.Class && Op.Class->Registers.size() == 1 && 9171095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar "Unexpected class for singleton register"); 9181095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar II->Operands.push_back(Op); 9191095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar continue; 9201095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar } 9211095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 92220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Check for simple tokens. 92320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (Token[0] != '$') { 92420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InstructionInfo::Operand Op; 925a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Op.Class = getTokenClass(Token); 926fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer Op.OperandInfo = 0; 92720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar II->Operands.push_back(Op); 92820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar continue; 92920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 930a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 93120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Otherwise this is an operand reference. 93220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar StringRef OperandName; 93320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (Token[1] == '{') 93420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar OperandName = Token.substr(2, Token.size() - 3); 93520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar else 93620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar OperandName = Token.substr(1); 93720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 93820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Map this token to an operand. FIXME: Move elsewhere. 93920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar unsigned Idx; 94020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar try { 9411095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar Idx = II->Instr->getOperandNamed(OperandName); 94220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } catch(...) { 9431095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar throw std::string("error: unable to find operand: '" + 9441095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar OperandName.str() + "'"); 94520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 946a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 9471095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar const CodeGenInstruction::OperandInfo &OI = II->Instr->OperandList[Idx]; 948a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar InstructionInfo::Operand Op; 949a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Op.Class = getOperandClass(Token, OI); 950fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer Op.OperandInfo = &OI; 95120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar II->Operands.push_back(Op); 95253a7f16dcc96de71fa46f641c59470586548081eDaniel Dunbar } 95320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 9545fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar 9555fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar // Reorder classes so that classes preceed super classes. 9565fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar std::sort(Classes.begin(), Classes.end(), less_ptr<ClassInfo>()); 95720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar} 958a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 959606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbarstatic void EmitConvertToMCInst(CodeGenTarget &Target, 960606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar std::vector<InstructionInfo*> &Infos, 961606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar raw_ostream &OS) { 962b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // Write the convert function to a separate stream, so we can drop it after 963b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // the enum. 964b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar std::string ConvertFnBody; 965b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar raw_string_ostream CvtOS(ConvertFnBody); 966b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 96720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Function we have already generated. 96820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::set<std::string> GeneratedFns; 96920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 970b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // Start the unified conversion function. 971b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 972b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << "static bool ConvertToMCInst(ConversionKind Kind, MCInst &Inst, " 973b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar << "unsigned Opcode,\n" 9749898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner << " const SmallVectorImpl<MCParsedAsmOperand*" 9759898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner << "> &Operands) {\n"; 976b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " Inst.setOpcode(Opcode);\n"; 977b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " switch (Kind) {\n"; 978b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " default:\n"; 979b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 980b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // Start the enum, which we will generate inline. 981b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 982b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar OS << "// Unified function for converting operants to MCInst instances.\n\n"; 983b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar OS << "enum ConversionKind {\n"; 984b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 9859898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner // TargetOperandClass - This is the target's operand class, like X86Operand. 9869898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner std::string TargetOperandClass = Target.getName() + "Operand"; 9879898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner 98820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (std::vector<InstructionInfo*>::const_iterator it = Infos.begin(), 98920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar ie = Infos.end(); it != ie; ++it) { 99020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InstructionInfo &II = **it; 99120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 99220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Order the (class) operands by the order to convert them into an MCInst. 99320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar SmallVector<std::pair<unsigned, unsigned>, 4> MIOperandList; 99420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = II.Operands.size(); i != e; ++i) { 99520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InstructionInfo::Operand &Op = II.Operands[i]; 996fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer if (Op.OperandInfo) 997fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer MIOperandList.push_back(std::make_pair(Op.OperandInfo->MIOperandNo, i)); 99820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 99920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::sort(MIOperandList.begin(), MIOperandList.end()); 1000a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 100120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Compute the total number of operands. 1002a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar unsigned NumMIOperands = 0; 100320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = II.Instr->OperandList.size(); i != e; ++i) { 100420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar const CodeGenInstruction::OperandInfo &OI = II.Instr->OperandList[i]; 1005a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar NumMIOperands = std::max(NumMIOperands, 1006a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar OI.MIOperandNo + OI.MINumOperands); 1007a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 1008a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 100920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Build the conversion function signature. 101020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar std::string Signature = "Convert"; 101120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar unsigned CurIndex = 0; 101220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = MIOperandList.size(); i != e; ++i) { 101320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InstructionInfo::Operand &Op = II.Operands[MIOperandList[i].second]; 1014fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer assert(CurIndex <= Op.OperandInfo->MIOperandNo && 101520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar "Duplicate match for instruction operand!"); 101620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1017b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar Signature += "_"; 1018b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 101920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Skip operands which weren't matched by anything, this occurs when the 102020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // .td file encodes "implicit" operands as explicit ones. 102120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // 102220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // FIXME: This should be removed from the MCInst structure. 1023fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer for (; CurIndex != Op.OperandInfo->MIOperandNo; ++CurIndex) 102420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Signature += "Imp"; 1025a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 1026ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Registers are always converted the same, don't duplicate the conversion 1027ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // function based on them. 1028ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // 1029ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // FIXME: We could generalize this based on the render method, if it 1030ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // mattered. 1031ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (Op.Class->isRegisterClass()) 1032ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar Signature += "Reg"; 1033ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar else 1034ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar Signature += Op.Class->ClassName; 1035fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer Signature += utostr(Op.OperandInfo->MINumOperands); 1036b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar Signature += "_" + utostr(MIOperandList[i].second); 1037b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1038fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer CurIndex += Op.OperandInfo->MINumOperands; 103920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 1040a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 104120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Add any trailing implicit operands. 104220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (; CurIndex != NumMIOperands; ++CurIndex) 104320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar Signature += "Imp"; 1044a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 1045b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar II.ConversionFnKind = Signature; 1046a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 1047b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // Check if we have already generated this signature. 104820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (!GeneratedFns.insert(Signature).second) 104920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar continue; 1050a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 105120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // If not, emit it now. 1052b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1053b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // Add to the enum list. 1054b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar OS << " " << Signature << ",\n"; 1055b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1056b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // And to the convert function. 1057b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " case " << Signature << ":\n"; 105820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar CurIndex = 0; 105920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = MIOperandList.size(); i != e; ++i) { 106020927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InstructionInfo::Operand &Op = II.Operands[MIOperandList[i].second]; 106120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 106220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // Add the implicit operands. 1063fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer for (; CurIndex != Op.OperandInfo->MIOperandNo; ++CurIndex) 1064b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " Inst.addOperand(MCOperand::CreateReg(0));\n"; 106520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 10669898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner CvtOS << " ((" << TargetOperandClass << "*)Operands[" 10679898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner << MIOperandList[i].second 10689898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner << "])->" << Op.Class->RenderMethod 1069fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer << "(Inst, " << Op.OperandInfo->MINumOperands << ");\n"; 1070fa1165abb8fec9383d640b0696a9f397b9153bafBenjamin Kramer CurIndex += Op.OperandInfo->MINumOperands; 1071a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 107220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 107320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar // And add trailing implicit operands. 107420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (; CurIndex != NumMIOperands; ++CurIndex) 1075b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " Inst.addOperand(MCOperand::CreateReg(0));\n"; 1076b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " break;\n"; 1077a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 1078b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1079b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // Finish the convert function. 1080b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1081b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " }\n"; 1082b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << " return false;\n"; 1083b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar CvtOS << "}\n\n"; 1084b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1085b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar // Finish the enum, and drop the convert function after it. 1086b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1087b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar OS << " NumConversionVariants\n"; 1088b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar OS << "};\n\n"; 1089b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar 1090b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar OS << CvtOS.str(); 109120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar} 109220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1093a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar/// EmitMatchClassEnumeration - Emit the enumeration for match class kinds. 1094a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarstatic void EmitMatchClassEnumeration(CodeGenTarget &Target, 1095a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar std::vector<ClassInfo*> &Infos, 1096a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar raw_ostream &OS) { 1097a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "namespace {\n\n"; 1098a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1099a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "/// MatchClassKind - The kinds of classes which participate in\n" 1100a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar << "/// instruction matching.\n"; 1101a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "enum MatchClassKind {\n"; 1102a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " InvalidMatchClass = 0,\n"; 1103a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar for (std::vector<ClassInfo*>::iterator it = Infos.begin(), 1104a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ie = Infos.end(); it != ie; ++it) { 1105a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ClassInfo &CI = **it; 1106a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " " << CI.Name << ", // "; 1107a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar if (CI.Kind == ClassInfo::Token) { 1108a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "'" << CI.ValueName << "'\n"; 1109ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } else if (CI.isRegisterClass()) { 1110a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar if (!CI.ValueName.empty()) 1111a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "register class '" << CI.ValueName << "'\n"; 1112a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar else 1113a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "derived register class\n"; 1114a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } else { 1115a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "user defined class '" << CI.ValueName << "'\n"; 1116a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 1117a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 1118a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " NumMatchClassKinds\n"; 1119a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "};\n\n"; 1120a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1121a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "}\n\n"; 1122a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar} 1123a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1124a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar/// EmitClassifyOperand - Emit the function to classify an operand. 1125a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbarstatic void EmitClassifyOperand(CodeGenTarget &Target, 1126ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar AsmMatcherInfo &Info, 1127a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar raw_ostream &OS) { 11289898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner OS << "static MatchClassKind ClassifyOperand(MCParsedAsmOperand *GOp) {\n" 11299898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner << " " << Target.getName() << "Operand &Operand = *(" 11309898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner << Target.getName() << "Operand*)GOp;\n"; 1131ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 1132ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Classify tokens. 1133a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " if (Operand.isToken())\n"; 1134a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " return MatchTokenString(Operand.getToken());\n\n"; 1135ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 1136ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Classify registers. 1137ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // 1138ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // FIXME: Don't hardcode isReg, getReg. 1139ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " if (Operand.isReg()) {\n"; 1140ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " switch (Operand.getReg()) {\n"; 1141ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " default: return InvalidMatchClass;\n"; 1142ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::map<Record*, ClassInfo*>::iterator 1143ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar it = Info.RegisterClasses.begin(), ie = Info.RegisterClasses.end(); 1144ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar it != ie; ++it) 1145ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " case " << Target.getName() << "::" 1146ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar << it->first->getName() << ": return " << it->second->Name << ";\n"; 1147ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " }\n"; 1148ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " }\n\n"; 1149ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 1150ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Classify user defined operands. 1151ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (std::vector<ClassInfo*>::iterator it = Info.Classes.begin(), 1152ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar ie = Info.Classes.end(); it != ie; ++it) { 1153a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar ClassInfo &CI = **it; 1154a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1155ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!CI.isUserClass()) 1156ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar continue; 1157ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 1158ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " // '" << CI.ClassName << "' class"; 1159ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!CI.SuperClasses.empty()) { 1160ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << ", subclass of "; 1161ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (unsigned i = 0, e = CI.SuperClasses.size(); i != e; ++i) { 1162ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (i) OS << ", "; 1163ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << "'" << CI.SuperClasses[i]->ClassName << "'"; 1164ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar assert(CI < *CI.SuperClasses[i] && "Invalid class relation!"); 11655fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar } 1166ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar } 1167ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << "\n"; 11685fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar 1169ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " if (Operand." << CI.PredicateMethod << "()) {\n"; 11705fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar 1171ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar // Validate subclass relationships. 1172ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (!CI.SuperClasses.empty()) { 1173ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar for (unsigned i = 0, e = CI.SuperClasses.size(); i != e; ++i) 1174ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " assert(Operand." << CI.SuperClasses[i]->PredicateMethod 11755fe6338ac859707f797bf6db6d043bb5f4d944a1Daniel Dunbar << "() && \"Invalid class relationship!\");\n"; 1176a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 1177ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar 1178ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " return " << CI.Name << ";\n"; 1179ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " }\n\n"; 1180a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 1181a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " return InvalidMatchClass;\n"; 1182a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "}\n\n"; 1183a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar} 1184a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1185fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar/// EmitIsSubclass - Emit the subclass predicate function. 1186fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbarstatic void EmitIsSubclass(CodeGenTarget &Target, 1187fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar std::vector<ClassInfo*> &Infos, 1188fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar raw_ostream &OS) { 1189fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << "/// IsSubclass - Compute whether \\arg A is a subclass of \\arg B.\n"; 1190fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << "static bool IsSubclass(MatchClassKind A, MatchClassKind B) {\n"; 1191fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << " if (A == B)\n"; 1192fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << " return true;\n\n"; 1193fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1194fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << " switch (A) {\n"; 1195fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << " default:\n"; 1196fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << " return false;\n"; 1197fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar for (std::vector<ClassInfo*>::iterator it = Infos.begin(), 1198fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar ie = Infos.end(); it != ie; ++it) { 1199fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar ClassInfo &A = **it; 1200fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1201fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar if (A.Kind != ClassInfo::Token) { 1202fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar std::vector<StringRef> SuperClasses; 1203fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar for (std::vector<ClassInfo*>::iterator it = Infos.begin(), 1204fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar ie = Infos.end(); it != ie; ++it) { 1205fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar ClassInfo &B = **it; 1206fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1207ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar if (&A != &B && A.isSubsetOf(B)) 1208fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar SuperClasses.push_back(B.Name); 1209fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar } 1210fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1211fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar if (SuperClasses.empty()) 1212fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar continue; 1213fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1214fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << "\n case " << A.Name << ":\n"; 1215fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1216fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar if (SuperClasses.size() == 1) { 1217ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " return B == " << SuperClasses.back() << ";\n"; 1218fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar continue; 1219fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar } 1220fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1221ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " switch (B) {\n"; 1222ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " default: return false;\n"; 1223fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i) 1224ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " case " << SuperClasses[i] << ": return true;\n"; 1225ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar OS << " }\n"; 1226fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar } 1227fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar } 1228fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << " }\n"; 1229fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << "}\n\n"; 1230fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar} 1231fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 123270add884e4967f511e2cbb35c61534186b9b418aChris Lattnertypedef std::pair<std::string, std::string> StringPair; 123370add884e4967f511e2cbb35c61534186b9b418aChris Lattner 123470add884e4967f511e2cbb35c61534186b9b418aChris Lattner/// FindFirstNonCommonLetter - Find the first character in the keys of the 123570add884e4967f511e2cbb35c61534186b9b418aChris Lattner/// string pairs that is not shared across the whole set of strings. All 123670add884e4967f511e2cbb35c61534186b9b418aChris Lattner/// strings are assumed to have the same length. 123770add884e4967f511e2cbb35c61534186b9b418aChris Lattnerstatic unsigned 123870add884e4967f511e2cbb35c61534186b9b418aChris LattnerFindFirstNonCommonLetter(const std::vector<const StringPair*> &Matches) { 123970add884e4967f511e2cbb35c61534186b9b418aChris Lattner assert(!Matches.empty()); 124070add884e4967f511e2cbb35c61534186b9b418aChris Lattner for (unsigned i = 0, e = Matches[0]->first.size(); i != e; ++i) { 124170add884e4967f511e2cbb35c61534186b9b418aChris Lattner // Check to see if letter i is the same across the set. 124270add884e4967f511e2cbb35c61534186b9b418aChris Lattner char Letter = Matches[0]->first[i]; 124370add884e4967f511e2cbb35c61534186b9b418aChris Lattner 124470add884e4967f511e2cbb35c61534186b9b418aChris Lattner for (unsigned str = 0, e = Matches.size(); str != e; ++str) 124570add884e4967f511e2cbb35c61534186b9b418aChris Lattner if (Matches[str]->first[i] != Letter) 124670add884e4967f511e2cbb35c61534186b9b418aChris Lattner return i; 124770add884e4967f511e2cbb35c61534186b9b418aChris Lattner } 124870add884e4967f511e2cbb35c61534186b9b418aChris Lattner 124970add884e4967f511e2cbb35c61534186b9b418aChris Lattner return Matches[0]->first.size(); 125070add884e4967f511e2cbb35c61534186b9b418aChris Lattner} 125170add884e4967f511e2cbb35c61534186b9b418aChris Lattner 125270add884e4967f511e2cbb35c61534186b9b418aChris Lattner/// EmitStringMatcherForChar - Given a set of strings that are known to be the 125370add884e4967f511e2cbb35c61534186b9b418aChris Lattner/// same length and whose characters leading up to CharNo are the same, emit 125470add884e4967f511e2cbb35c61534186b9b418aChris Lattner/// code to verify that CharNo and later are the same. 125572ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// 125672ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// \return - True if control can leave the emitted code fragment. 125772ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbarstatic bool EmitStringMatcherForChar(const std::string &StrVariableName, 125870add884e4967f511e2cbb35c61534186b9b418aChris Lattner const std::vector<const StringPair*> &Matches, 125970add884e4967f511e2cbb35c61534186b9b418aChris Lattner unsigned CharNo, unsigned IndentCount, 126070add884e4967f511e2cbb35c61534186b9b418aChris Lattner raw_ostream &OS) { 126170add884e4967f511e2cbb35c61534186b9b418aChris Lattner assert(!Matches.empty() && "Must have at least one string to match!"); 126270add884e4967f511e2cbb35c61534186b9b418aChris Lattner std::string Indent(IndentCount*2+4, ' '); 126370add884e4967f511e2cbb35c61534186b9b418aChris Lattner 126470add884e4967f511e2cbb35c61534186b9b418aChris Lattner // If we have verified that the entire string matches, we're done: output the 126570add884e4967f511e2cbb35c61534186b9b418aChris Lattner // matching code. 126670add884e4967f511e2cbb35c61534186b9b418aChris Lattner if (CharNo == Matches[0]->first.size()) { 126770add884e4967f511e2cbb35c61534186b9b418aChris Lattner assert(Matches.size() == 1 && "Had duplicate keys to match on"); 126870add884e4967f511e2cbb35c61534186b9b418aChris Lattner 126970add884e4967f511e2cbb35c61534186b9b418aChris Lattner // FIXME: If Matches[0].first has embeded \n, this will be bad. 127070add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << Indent << Matches[0]->second << "\t // \"" << Matches[0]->first 127170add884e4967f511e2cbb35c61534186b9b418aChris Lattner << "\"\n"; 127272ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar return false; 127370add884e4967f511e2cbb35c61534186b9b418aChris Lattner } 127470add884e4967f511e2cbb35c61534186b9b418aChris Lattner 127570add884e4967f511e2cbb35c61534186b9b418aChris Lattner // Bucket the matches by the character we are comparing. 127670add884e4967f511e2cbb35c61534186b9b418aChris Lattner std::map<char, std::vector<const StringPair*> > MatchesByLetter; 127770add884e4967f511e2cbb35c61534186b9b418aChris Lattner 127870add884e4967f511e2cbb35c61534186b9b418aChris Lattner for (unsigned i = 0, e = Matches.size(); i != e; ++i) 127970add884e4967f511e2cbb35c61534186b9b418aChris Lattner MatchesByLetter[Matches[i]->first[CharNo]].push_back(Matches[i]); 128070add884e4967f511e2cbb35c61534186b9b418aChris Lattner 128170add884e4967f511e2cbb35c61534186b9b418aChris Lattner 128270add884e4967f511e2cbb35c61534186b9b418aChris Lattner // If we have exactly one bucket to match, see how many characters are common 128370add884e4967f511e2cbb35c61534186b9b418aChris Lattner // across the whole set and match all of them at once. 128470add884e4967f511e2cbb35c61534186b9b418aChris Lattner if (MatchesByLetter.size() == 1) { 128570add884e4967f511e2cbb35c61534186b9b418aChris Lattner unsigned FirstNonCommonLetter = FindFirstNonCommonLetter(Matches); 128670add884e4967f511e2cbb35c61534186b9b418aChris Lattner unsigned NumChars = FirstNonCommonLetter-CharNo; 128770add884e4967f511e2cbb35c61534186b9b418aChris Lattner 128872ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar // Emit code to break out if the prefix doesn't match. 128970add884e4967f511e2cbb35c61534186b9b418aChris Lattner if (NumChars == 1) { 129072ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar // Do the comparison with if (Str[1] != 'f') 129170add884e4967f511e2cbb35c61534186b9b418aChris Lattner // FIXME: Need to escape general characters. 129272ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar OS << Indent << "if (" << StrVariableName << "[" << CharNo << "] != '" 129372ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar << Matches[0]->first[CharNo] << "')\n"; 129472ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar OS << Indent << " break;\n"; 129570add884e4967f511e2cbb35c61534186b9b418aChris Lattner } else { 129672ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar // Do the comparison with if (Str.substr(1,3) != "foo"). 129770add884e4967f511e2cbb35c61534186b9b418aChris Lattner // FIXME: Need to escape general strings. 129872ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar OS << Indent << "if (" << StrVariableName << ".substr(" << CharNo << "," 129972ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar << NumChars << ") != \""; 130072ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar OS << Matches[0]->first.substr(CharNo, NumChars) << "\")\n"; 1301af3e9d43a2d8ba3cf5f65f54bd928846bec3ab67Daniel Dunbar OS << Indent << " break;\n"; 130270add884e4967f511e2cbb35c61534186b9b418aChris Lattner } 130370add884e4967f511e2cbb35c61534186b9b418aChris Lattner 130472ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar return EmitStringMatcherForChar(StrVariableName, Matches, 130572ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar FirstNonCommonLetter, IndentCount, OS); 130670add884e4967f511e2cbb35c61534186b9b418aChris Lattner } 130770add884e4967f511e2cbb35c61534186b9b418aChris Lattner 130870add884e4967f511e2cbb35c61534186b9b418aChris Lattner // Otherwise, we have multiple possible things, emit a switch on the 130970add884e4967f511e2cbb35c61534186b9b418aChris Lattner // character. 131070add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << Indent << "switch (" << StrVariableName << "[" << CharNo << "]) {\n"; 131170add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << Indent << "default: break;\n"; 131270add884e4967f511e2cbb35c61534186b9b418aChris Lattner 131370add884e4967f511e2cbb35c61534186b9b418aChris Lattner for (std::map<char, std::vector<const StringPair*> >::iterator LI = 131470add884e4967f511e2cbb35c61534186b9b418aChris Lattner MatchesByLetter.begin(), E = MatchesByLetter.end(); LI != E; ++LI) { 131570add884e4967f511e2cbb35c61534186b9b418aChris Lattner // TODO: escape hard stuff (like \n) if we ever care about it. 131670add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << Indent << "case '" << LI->first << "':\t // " 131770add884e4967f511e2cbb35c61534186b9b418aChris Lattner << LI->second.size() << " strings to match.\n"; 131872ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar if (EmitStringMatcherForChar(StrVariableName, LI->second, CharNo+1, 131972ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar IndentCount+1, OS)) 132072ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar OS << Indent << " break;\n"; 132170add884e4967f511e2cbb35c61534186b9b418aChris Lattner } 132270add884e4967f511e2cbb35c61534186b9b418aChris Lattner 132370add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << Indent << "}\n"; 132472ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar return true; 132570add884e4967f511e2cbb35c61534186b9b418aChris Lattner} 132670add884e4967f511e2cbb35c61534186b9b418aChris Lattner 132770add884e4967f511e2cbb35c61534186b9b418aChris Lattner 132870add884e4967f511e2cbb35c61534186b9b418aChris Lattner/// EmitStringMatcher - Given a list of strings and code to execute when they 132972ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// match, output a simple switch tree to classify the input string. 133072ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// 133172ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// If a match is found, the code in Vals[i].second is executed; control must 133272ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// not exit this code fragment. If nothing matches, execution falls through. 133372ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// 133472ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar/// \param StrVariableName - The name of the variable to test. 133570add884e4967f511e2cbb35c61534186b9b418aChris Lattnerstatic void EmitStringMatcher(const std::string &StrVariableName, 133670add884e4967f511e2cbb35c61534186b9b418aChris Lattner const std::vector<StringPair> &Matches, 133770add884e4967f511e2cbb35c61534186b9b418aChris Lattner raw_ostream &OS) { 133870add884e4967f511e2cbb35c61534186b9b418aChris Lattner // First level categorization: group strings by length. 133970add884e4967f511e2cbb35c61534186b9b418aChris Lattner std::map<unsigned, std::vector<const StringPair*> > MatchesByLength; 134070add884e4967f511e2cbb35c61534186b9b418aChris Lattner 134170add884e4967f511e2cbb35c61534186b9b418aChris Lattner for (unsigned i = 0, e = Matches.size(); i != e; ++i) 134270add884e4967f511e2cbb35c61534186b9b418aChris Lattner MatchesByLength[Matches[i].first.size()].push_back(&Matches[i]); 134370add884e4967f511e2cbb35c61534186b9b418aChris Lattner 134470add884e4967f511e2cbb35c61534186b9b418aChris Lattner // Output a switch statement on length and categorize the elements within each 134570add884e4967f511e2cbb35c61534186b9b418aChris Lattner // bin. 134670add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << " switch (" << StrVariableName << ".size()) {\n"; 134770add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << " default: break;\n"; 134870add884e4967f511e2cbb35c61534186b9b418aChris Lattner 134970add884e4967f511e2cbb35c61534186b9b418aChris Lattner for (std::map<unsigned, std::vector<const StringPair*> >::iterator LI = 135070add884e4967f511e2cbb35c61534186b9b418aChris Lattner MatchesByLength.begin(), E = MatchesByLength.end(); LI != E; ++LI) { 135170add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << " case " << LI->first << ":\t // " << LI->second.size() 135270add884e4967f511e2cbb35c61534186b9b418aChris Lattner << " strings to match.\n"; 135372ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar if (EmitStringMatcherForChar(StrVariableName, LI->second, 0, 0, OS)) 135472ffae90ce9750b46b9a7cc84e5c11dae9274ebeDaniel Dunbar OS << " break;\n"; 135570add884e4967f511e2cbb35c61534186b9b418aChris Lattner } 135670add884e4967f511e2cbb35c61534186b9b418aChris Lattner 135770add884e4967f511e2cbb35c61534186b9b418aChris Lattner OS << " }\n"; 135870add884e4967f511e2cbb35c61534186b9b418aChris Lattner} 135970add884e4967f511e2cbb35c61534186b9b418aChris Lattner 136070add884e4967f511e2cbb35c61534186b9b418aChris Lattner 1361245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar/// EmitMatchTokenString - Emit the function to match a token string to the 1362245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar/// appropriate match class value. 1363245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbarstatic void EmitMatchTokenString(CodeGenTarget &Target, 1364245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar std::vector<ClassInfo*> &Infos, 1365245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar raw_ostream &OS) { 1366245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar // Construct the match list. 1367245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar std::vector<StringPair> Matches; 1368245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar for (std::vector<ClassInfo*>::iterator it = Infos.begin(), 1369245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar ie = Infos.end(); it != ie; ++it) { 1370245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar ClassInfo &CI = **it; 1371245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar 1372245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar if (CI.Kind == ClassInfo::Token) 1373245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar Matches.push_back(StringPair(CI.ValueName, "return " + CI.Name + ";")); 1374245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar } 1375245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar 1376245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar OS << "static MatchClassKind MatchTokenString(const StringRef &Name) {\n"; 1377245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar 1378245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar EmitStringMatcher("Name", Matches, OS); 1379245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar 1380245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar OS << " return InvalidMatchClass;\n"; 1381245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar OS << "}\n\n"; 1382245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar} 138370add884e4967f511e2cbb35c61534186b9b418aChris Lattner 13842234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar/// EmitMatchRegisterName - Emit the function to match a string to the target 13852234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar/// specific register enum. 13862234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbarstatic void EmitMatchRegisterName(CodeGenTarget &Target, Record *AsmParser, 13872234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar raw_ostream &OS) { 1388245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar // Construct the match list. 138970add884e4967f511e2cbb35c61534186b9b418aChris Lattner std::vector<StringPair> Matches; 1390245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar for (unsigned i = 0, e = Target.getRegisters().size(); i != e; ++i) { 1391245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar const CodeGenRegister &Reg = Target.getRegisters()[i]; 139220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar if (Reg.TheDef->getValueAsString("AsmName").empty()) 139320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar continue; 139420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 139570add884e4967f511e2cbb35c61534186b9b418aChris Lattner Matches.push_back(StringPair(Reg.TheDef->getValueAsString("AsmName"), 1396245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar "return " + utostr(i + 1) + ";")); 139720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 139870add884e4967f511e2cbb35c61534186b9b418aChris Lattner 1399e9b466d4f09de3b46c0d0d1e71cabddc7cc9021bSean Callanan OS << "static unsigned MatchRegisterName(const StringRef &Name) {\n"; 1400245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar 140170add884e4967f511e2cbb35c61534186b9b418aChris Lattner EmitStringMatcher("Name", Matches, OS); 140270add884e4967f511e2cbb35c61534186b9b418aChris Lattner 1403245f05843f7f17406f394696e7330950e6d88e6dDaniel Dunbar OS << " return 0;\n"; 140420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar OS << "}\n\n"; 14052234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar} 14062234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar 14072234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbarvoid AsmMatcherEmitter::run(raw_ostream &OS) { 14082234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar CodeGenTarget Target; 14092234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar Record *AsmParser = Target.getAsmParser(); 14102234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar std::string ClassName = AsmParser->getValueAsString("AsmParserClassName"); 14112234e5eee6d196594d42e6f2be51e176bf5e5f6eDaniel Dunbar 1412a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Compute the information on the instructions to match. 141359fc42debd571bbafc52c20bc418fdc3f4d00188Daniel Dunbar AsmMatcherInfo Info(AsmParser); 1414a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Info.BuildInfo(Target); 141520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1416606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar // Sort the instruction table using the partial order on classes. 1417606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar std::sort(Info.Instructions.begin(), Info.Instructions.end(), 1418606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar less_ptr<InstructionInfo>()); 1419606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 1420b7479c035534b1c240117cd0aea8342393160da8Daniel Dunbar DEBUG_WITH_TYPE("instruction_info", { 1421a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar for (std::vector<InstructionInfo*>::iterator 1422a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar it = Info.Instructions.begin(), ie = Info.Instructions.end(); 1423a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar it != ie; ++it) 142420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar (*it)->dump(); 142520927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar }); 142620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1427606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar // Check for ambiguous instructions. 1428606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar unsigned NumAmbiguous = 0; 14292b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar for (unsigned i = 0, e = Info.Instructions.size(); i != e; ++i) { 14302b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar for (unsigned j = i + 1; j != e; ++j) { 14312b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar InstructionInfo &A = *Info.Instructions[i]; 14322b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar InstructionInfo &B = *Info.Instructions[j]; 1433606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 14342b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar if (A.CouldMatchAmiguouslyWith(B)) { 14352b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar DEBUG_WITH_TYPE("ambiguous_instrs", { 14362b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar errs() << "warning: ambiguous instruction match:\n"; 14372b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar A.dump(); 14382b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar errs() << "\nis incomparable with:\n"; 14392b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar B.dump(); 14402b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar errs() << "\n\n"; 14412b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar }); 14422b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar ++NumAmbiguous; 14432b54481a77696d47dc9220cd7a36155599750904Daniel Dunbar } 1444606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar } 1445606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar } 1446606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar if (NumAmbiguous) 1447606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar DEBUG_WITH_TYPE("ambiguous_instrs", { 1448606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar errs() << "warning: " << NumAmbiguous 1449606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar << " ambiguous instructions!\n"; 1450606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar }); 1451606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar 14521095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Write the output. 14531095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 14541095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar EmitSourceFileHeader("Assembly Matcher Source Fragment", OS); 14551095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 14561095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar // Emit the function to match a register name to number. 14571095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar EmitMatchRegisterName(Target, AsmParser, OS); 1458e9b466d4f09de3b46c0d0d1e71cabddc7cc9021bSean Callanan 1459e9b466d4f09de3b46c0d0d1e71cabddc7cc9021bSean Callanan OS << "#ifndef REGISTERS_ONLY\n\n"; 14601095f2ae261d231a63d329b0ebbf6eaf566ff429Daniel Dunbar 1461606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar // Generate the unified function to convert operands into an MCInst. 1462606e8ad796f72824f5509e2657c44eca025d4bafDaniel Dunbar EmitConvertToMCInst(Target, Info.Instructions, OS); 1463a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1464a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Emit the enumeration for classes which participate in matching. 1465a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar EmitMatchClassEnumeration(Target, Info.Classes, OS); 146620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1467a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Emit the routine to match token strings to their match class. 1468a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar EmitMatchTokenString(Target, Info.Classes, OS); 146920927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1470a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Emit the routine to classify an operand. 1471ea6408f8cd17b065e414611e01a7133d118429e9Daniel Dunbar EmitClassifyOperand(Target, Info, OS); 1472a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1473fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar // Emit the subclass predicate routine. 1474fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar EmitIsSubclass(Target, Info.Classes, OS); 1475fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar 1476a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Finally, build the match function. 1477a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1478a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar size_t MaxNumOperands = 0; 1479a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar for (std::vector<InstructionInfo*>::const_iterator it = 1480a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Info.Instructions.begin(), ie = Info.Instructions.end(); 1481a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar it != ie; ++it) 1482a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar MaxNumOperands = std::max(MaxNumOperands, (*it)->Operands.size()); 1483a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 148420927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar OS << "bool " << Target.getName() << ClassName 14859898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner << "::\nMatchInstruction(const SmallVectorImpl<MCParsedAsmOperand*> " 14869898671a74d3fc924347e679c45edaa685b3fe6eChris Lattner "&Operands,\n MCInst &Inst) {\n"; 148720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1488a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Emit the static match table; unused classes get initalized to 0 which is 1489a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // guaranteed to be InvalidMatchClass. 1490a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // 1491a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // FIXME: We can reduce the size of this table very easily. First, we change 1492a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // it so that store the kinds in separate bit-fields for each index, which 1493a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // only needs to be the max width used for classes at that index (we also need 1494a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // to reject based on this during classification). If we then make sure to 1495a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // order the match kinds appropriately (putting mnemonics last), then we 1496a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // should only end up using a few bits for each class, especially the ones 1497a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // following the mnemonic. 1498c6049534605af5f13d1b5149488b0a9efd294582Chris Lattner OS << " static const struct MatchEntry {\n"; 1499a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " unsigned Opcode;\n"; 1500a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " ConversionKind ConvertFn;\n"; 1501a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " MatchClassKind Classes[" << MaxNumOperands << "];\n"; 1502a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " } MatchTable[" << Info.Instructions.size() << "] = {\n"; 1503a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1504a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar for (std::vector<InstructionInfo*>::const_iterator it = 1505a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar Info.Instructions.begin(), ie = Info.Instructions.end(); 1506a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar it != ie; ++it) { 150720927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InstructionInfo &II = **it; 150820927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1509a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " { " << Target.getName() << "::" << II.InstrName 1510a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar << ", " << II.ConversionFnKind << ", { "; 151120927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar for (unsigned i = 0, e = II.Operands.size(); i != e; ++i) { 151220927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar InstructionInfo::Operand &Op = II.Operands[i]; 151320927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar 1514a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar if (i) OS << ", "; 1515a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << Op.Class->Name; 151620927f26fcd7d0394bc60c58c61d879a83adac0dDaniel Dunbar } 1517a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " } },\n"; 1518a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar } 1519a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1520a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " };\n\n"; 1521a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1522a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Emit code to compute the class list for this operand vector. 1523a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " // Eliminate obvious mismatches.\n"; 1524a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " if (Operands.size() > " << MaxNumOperands << ")\n"; 1525a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " return true;\n\n"; 1526a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1527a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " // Compute the class list for this operand vector.\n"; 1528a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " MatchClassKind Classes[" << MaxNumOperands << "];\n"; 1529a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " for (unsigned i = 0, e = Operands.size(); i != e; ++i) {\n"; 1530a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " Classes[i] = ClassifyOperand(Operands[i]);\n\n"; 1531a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1532a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " // Check for invalid operands before matching.\n"; 1533a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " if (Classes[i] == InvalidMatchClass)\n"; 1534a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " return true;\n"; 1535a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " }\n\n"; 1536a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1537a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " // Mark unused classes.\n"; 1538a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " for (unsigned i = Operands.size(), e = " << MaxNumOperands << "; " 1539a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar << "i != e; ++i)\n"; 1540a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " Classes[i] = InvalidMatchClass;\n\n"; 1541a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar 1542a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar // Emit code to search the table. 1543a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " // Search the table.\n"; 1544d39bd3aa5c795e55c0e2c4a5c72dab58ce1a1576Chris Lattner OS << " for (const MatchEntry *it = MatchTable, " 1545a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar << "*ie = MatchTable + " << Info.Instructions.size() 1546a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar << "; it != ie; ++it) {\n"; 1547a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar for (unsigned i = 0; i != MaxNumOperands; ++i) { 1548fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar OS << " if (!IsSubclass(Classes[" 1549fdb1f493ab6bcfb5603b9f497195492d92aceacbDaniel Dunbar << i << "], it->Classes[" << i << "]))\n"; 1550a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " continue;\n"; 1551a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar } 1552a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << "\n"; 1553a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " return ConvertToMCInst(it->ConvertFn, Inst, " 1554a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar << "it->Opcode, Operands);\n"; 1555a3741fa28b1a397ebfd623ef9d14e978df94ce47Daniel Dunbar OS << " }\n\n"; 1556a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar 1557a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar OS << " return true;\n"; 1558a027d222e18ea9028e9e12ae2f5cd566889b599aDaniel Dunbar OS << "}\n\n"; 1559e9b466d4f09de3b46c0d0d1e71cabddc7cc9021bSean Callanan 1560e9b466d4f09de3b46c0d0d1e71cabddc7cc9021bSean Callanan OS << "#endif // REGISTERS_ONLY\n"; 1561d51ffcf303070b0a5aea7f365b85f6f969c384cbDaniel Dunbar} 1562