mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
3ed469ccd7
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting fall out by removing unused variables. Remaining warnings have to do with unused functions (I didn't want to delete code without review) and unused variables in generated code. Maintainers should clean up the remaining issues when they see them. All changes pass DejaGnu tests and Olden. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31380 91177308-0d34-0410-b5e6-96231b3b80d8
2828 lines
96 KiB
C++
2828 lines
96 KiB
C++
//===-- llvmAsmParser.y - Parser for llvm assembly files --------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the bison parser for LLVM assembly languages files.
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//
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//===----------------------------------------------------------------------===//
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%{
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#include "ParserInternals.h"
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#include "llvm/CallingConv.h"
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#include "llvm/InlineAsm.h"
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#include "llvm/Instructions.h"
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#include "llvm/Module.h"
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#include "llvm/SymbolTable.h"
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#include "llvm/Assembly/AutoUpgrade.h"
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#include "llvm/Support/GetElementPtrTypeIterator.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/MathExtras.h"
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#include <algorithm>
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#include <iostream>
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#include <list>
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#include <utility>
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// The following is a gross hack. In order to rid the libAsmParser library of
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// exceptions, we have to have a way of getting the yyparse function to go into
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// an error situation. So, whenever we want an error to occur, the GenerateError
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// function (see bottom of file) sets TriggerError. Then, at the end of each
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// production in the grammer we use CHECK_FOR_ERROR which will invoke YYERROR
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// (a goto) to put YACC in error state. Furthermore, several calls to
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// GenerateError are made from inside productions and they must simulate the
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// previous exception behavior by exiting the production immediately. We have
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// replaced these with the GEN_ERROR macro which calls GeneratError and then
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// immediately invokes YYERROR. This would be so much cleaner if it was a
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// recursive descent parser.
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static bool TriggerError = false;
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#define CHECK_FOR_ERROR { if (TriggerError) { TriggerError = false; YYABORT; } }
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#define GEN_ERROR(msg) { GenerateError(msg); YYERROR; }
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int yyerror(const char *ErrorMsg); // Forward declarations to prevent "implicit
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int yylex(); // declaration" of xxx warnings.
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int yyparse();
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namespace llvm {
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std::string CurFilename;
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}
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using namespace llvm;
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static Module *ParserResult;
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// DEBUG_UPREFS - Define this symbol if you want to enable debugging output
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// relating to upreferences in the input stream.
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//
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//#define DEBUG_UPREFS 1
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#ifdef DEBUG_UPREFS
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#define UR_OUT(X) std::cerr << X
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#else
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#define UR_OUT(X)
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#endif
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#define YYERROR_VERBOSE 1
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static bool ObsoleteVarArgs;
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static bool NewVarArgs;
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static BasicBlock *CurBB;
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static GlobalVariable *CurGV;
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// This contains info used when building the body of a function. It is
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// destroyed when the function is completed.
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//
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typedef std::vector<Value *> ValueList; // Numbered defs
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static void
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ResolveDefinitions(std::map<const Type *,ValueList> &LateResolvers,
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std::map<const Type *,ValueList> *FutureLateResolvers = 0);
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static struct PerModuleInfo {
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Module *CurrentModule;
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std::map<const Type *, ValueList> Values; // Module level numbered definitions
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std::map<const Type *,ValueList> LateResolveValues;
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std::vector<PATypeHolder> Types;
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std::map<ValID, PATypeHolder> LateResolveTypes;
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/// PlaceHolderInfo - When temporary placeholder objects are created, remember
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/// how they were referenced and on which line of the input they came from so
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/// that we can resolve them later and print error messages as appropriate.
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std::map<Value*, std::pair<ValID, int> > PlaceHolderInfo;
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// GlobalRefs - This maintains a mapping between <Type, ValID>'s and forward
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// references to global values. Global values may be referenced before they
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// are defined, and if so, the temporary object that they represent is held
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// here. This is used for forward references of GlobalValues.
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//
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typedef std::map<std::pair<const PointerType *,
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ValID>, GlobalValue*> GlobalRefsType;
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GlobalRefsType GlobalRefs;
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void ModuleDone() {
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// If we could not resolve some functions at function compilation time
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// (calls to functions before they are defined), resolve them now... Types
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// are resolved when the constant pool has been completely parsed.
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//
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ResolveDefinitions(LateResolveValues);
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if (TriggerError)
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return;
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// Check to make sure that all global value forward references have been
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// resolved!
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//
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if (!GlobalRefs.empty()) {
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std::string UndefinedReferences = "Unresolved global references exist:\n";
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for (GlobalRefsType::iterator I = GlobalRefs.begin(), E =GlobalRefs.end();
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I != E; ++I) {
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UndefinedReferences += " " + I->first.first->getDescription() + " " +
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I->first.second.getName() + "\n";
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}
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GenerateError(UndefinedReferences);
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return;
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}
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// Look for intrinsic functions and CallInst that need to be upgraded
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for (Module::iterator FI = CurrentModule->begin(),
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FE = CurrentModule->end(); FI != FE; )
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UpgradeCallsToIntrinsic(FI++);
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Values.clear(); // Clear out function local definitions
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Types.clear();
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CurrentModule = 0;
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}
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// GetForwardRefForGlobal - Check to see if there is a forward reference
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// for this global. If so, remove it from the GlobalRefs map and return it.
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// If not, just return null.
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GlobalValue *GetForwardRefForGlobal(const PointerType *PTy, ValID ID) {
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// Check to see if there is a forward reference to this global variable...
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// if there is, eliminate it and patch the reference to use the new def'n.
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GlobalRefsType::iterator I = GlobalRefs.find(std::make_pair(PTy, ID));
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GlobalValue *Ret = 0;
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if (I != GlobalRefs.end()) {
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Ret = I->second;
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GlobalRefs.erase(I);
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}
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return Ret;
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}
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} CurModule;
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static struct PerFunctionInfo {
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Function *CurrentFunction; // Pointer to current function being created
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std::map<const Type*, ValueList> Values; // Keep track of #'d definitions
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std::map<const Type*, ValueList> LateResolveValues;
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bool isDeclare; // Is this function a forward declararation?
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GlobalValue::LinkageTypes Linkage; // Linkage for forward declaration.
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/// BBForwardRefs - When we see forward references to basic blocks, keep
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/// track of them here.
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std::map<BasicBlock*, std::pair<ValID, int> > BBForwardRefs;
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std::vector<BasicBlock*> NumberedBlocks;
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unsigned NextBBNum;
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inline PerFunctionInfo() {
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CurrentFunction = 0;
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isDeclare = false;
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Linkage = GlobalValue::ExternalLinkage;
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}
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inline void FunctionStart(Function *M) {
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CurrentFunction = M;
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NextBBNum = 0;
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}
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void FunctionDone() {
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NumberedBlocks.clear();
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// Any forward referenced blocks left?
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if (!BBForwardRefs.empty()) {
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GenerateError("Undefined reference to label " +
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BBForwardRefs.begin()->first->getName());
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return;
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}
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// Resolve all forward references now.
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ResolveDefinitions(LateResolveValues, &CurModule.LateResolveValues);
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Values.clear(); // Clear out function local definitions
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CurrentFunction = 0;
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isDeclare = false;
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Linkage = GlobalValue::ExternalLinkage;
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}
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} CurFun; // Info for the current function...
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static bool inFunctionScope() { return CurFun.CurrentFunction != 0; }
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//===----------------------------------------------------------------------===//
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// Code to handle definitions of all the types
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//===----------------------------------------------------------------------===//
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static int InsertValue(Value *V,
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std::map<const Type*,ValueList> &ValueTab = CurFun.Values) {
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if (V->hasName()) return -1; // Is this a numbered definition?
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// Yes, insert the value into the value table...
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ValueList &List = ValueTab[V->getType()];
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List.push_back(V);
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return List.size()-1;
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}
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static const Type *getTypeVal(const ValID &D, bool DoNotImprovise = false) {
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switch (D.Type) {
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case ValID::NumberVal: // Is it a numbered definition?
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// Module constants occupy the lowest numbered slots...
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if ((unsigned)D.Num < CurModule.Types.size())
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return CurModule.Types[(unsigned)D.Num];
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break;
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case ValID::NameVal: // Is it a named definition?
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if (const Type *N = CurModule.CurrentModule->getTypeByName(D.Name)) {
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D.destroy(); // Free old strdup'd memory...
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return N;
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}
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break;
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default:
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GenerateError("Internal parser error: Invalid symbol type reference!");
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return 0;
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}
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// If we reached here, we referenced either a symbol that we don't know about
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// or an id number that hasn't been read yet. We may be referencing something
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// forward, so just create an entry to be resolved later and get to it...
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//
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if (DoNotImprovise) return 0; // Do we just want a null to be returned?
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if (inFunctionScope()) {
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if (D.Type == ValID::NameVal) {
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GenerateError("Reference to an undefined type: '" + D.getName() + "'");
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return 0;
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} else {
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GenerateError("Reference to an undefined type: #" + itostr(D.Num));
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return 0;
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}
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}
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std::map<ValID, PATypeHolder>::iterator I =CurModule.LateResolveTypes.find(D);
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if (I != CurModule.LateResolveTypes.end())
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return I->second;
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Type *Typ = OpaqueType::get();
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CurModule.LateResolveTypes.insert(std::make_pair(D, Typ));
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return Typ;
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}
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static Value *lookupInSymbolTable(const Type *Ty, const std::string &Name) {
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SymbolTable &SymTab =
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inFunctionScope() ? CurFun.CurrentFunction->getSymbolTable() :
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CurModule.CurrentModule->getSymbolTable();
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return SymTab.lookup(Ty, Name);
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}
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// getValNonImprovising - Look up the value specified by the provided type and
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// the provided ValID. If the value exists and has already been defined, return
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// it. Otherwise return null.
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//
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static Value *getValNonImprovising(const Type *Ty, const ValID &D) {
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if (isa<FunctionType>(Ty)) {
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GenerateError("Functions are not values and "
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"must be referenced as pointers");
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return 0;
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}
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switch (D.Type) {
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case ValID::NumberVal: { // Is it a numbered definition?
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unsigned Num = (unsigned)D.Num;
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// Module constants occupy the lowest numbered slots...
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std::map<const Type*,ValueList>::iterator VI = CurModule.Values.find(Ty);
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if (VI != CurModule.Values.end()) {
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if (Num < VI->second.size())
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return VI->second[Num];
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Num -= VI->second.size();
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}
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// Make sure that our type is within bounds
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VI = CurFun.Values.find(Ty);
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if (VI == CurFun.Values.end()) return 0;
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// Check that the number is within bounds...
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if (VI->second.size() <= Num) return 0;
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return VI->second[Num];
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}
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case ValID::NameVal: { // Is it a named definition?
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Value *N = lookupInSymbolTable(Ty, std::string(D.Name));
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if (N == 0) return 0;
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D.destroy(); // Free old strdup'd memory...
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return N;
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}
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// Check to make sure that "Ty" is an integral type, and that our
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// value will fit into the specified type...
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case ValID::ConstSIntVal: // Is it a constant pool reference??
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if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
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GenerateError("Signed integral constant '" +
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itostr(D.ConstPool64) + "' is invalid for type '" +
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Ty->getDescription() + "'!");
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return 0;
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}
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return ConstantInt::get(Ty, D.ConstPool64);
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case ValID::ConstUIntVal: // Is it an unsigned const pool reference?
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if (!ConstantInt::isValueValidForType(Ty, D.UConstPool64)) {
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if (!ConstantInt::isValueValidForType(Ty, D.ConstPool64)) {
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GenerateError("Integral constant '" + utostr(D.UConstPool64) +
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"' is invalid or out of range!");
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return 0;
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} else { // This is really a signed reference. Transmogrify.
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return ConstantInt::get(Ty, D.ConstPool64);
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}
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} else {
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return ConstantInt::get(Ty, D.UConstPool64);
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}
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case ValID::ConstFPVal: // Is it a floating point const pool reference?
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if (!ConstantFP::isValueValidForType(Ty, D.ConstPoolFP)) {
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GenerateError("FP constant invalid for type!!");
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return 0;
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}
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return ConstantFP::get(Ty, D.ConstPoolFP);
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case ValID::ConstNullVal: // Is it a null value?
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if (!isa<PointerType>(Ty)) {
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GenerateError("Cannot create a a non pointer null!");
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return 0;
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}
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return ConstantPointerNull::get(cast<PointerType>(Ty));
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case ValID::ConstUndefVal: // Is it an undef value?
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return UndefValue::get(Ty);
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case ValID::ConstZeroVal: // Is it a zero value?
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return Constant::getNullValue(Ty);
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case ValID::ConstantVal: // Fully resolved constant?
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if (D.ConstantValue->getType() != Ty) {
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GenerateError("Constant expression type different from required type!");
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return 0;
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}
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return D.ConstantValue;
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case ValID::InlineAsmVal: { // Inline asm expression
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const PointerType *PTy = dyn_cast<PointerType>(Ty);
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const FunctionType *FTy =
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PTy ? dyn_cast<FunctionType>(PTy->getElementType()) : 0;
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if (!FTy || !InlineAsm::Verify(FTy, D.IAD->Constraints)) {
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GenerateError("Invalid type for asm constraint string!");
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return 0;
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}
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InlineAsm *IA = InlineAsm::get(FTy, D.IAD->AsmString, D.IAD->Constraints,
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D.IAD->HasSideEffects);
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D.destroy(); // Free InlineAsmDescriptor.
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return IA;
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}
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default:
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assert(0 && "Unhandled case!");
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return 0;
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} // End of switch
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assert(0 && "Unhandled case!");
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return 0;
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}
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// getVal - This function is identical to getValNonImprovising, except that if a
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// value is not already defined, it "improvises" by creating a placeholder var
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// that looks and acts just like the requested variable. When the value is
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// defined later, all uses of the placeholder variable are replaced with the
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// real thing.
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//
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static Value *getVal(const Type *Ty, const ValID &ID) {
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if (Ty == Type::LabelTy) {
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GenerateError("Cannot use a basic block here");
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return 0;
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}
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// See if the value has already been defined.
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Value *V = getValNonImprovising(Ty, ID);
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if (V) return V;
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if (TriggerError) return 0;
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if (!Ty->isFirstClassType() && !isa<OpaqueType>(Ty)) {
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GenerateError("Invalid use of a composite type!");
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return 0;
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}
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// If we reached here, we referenced either a symbol that we don't know about
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// or an id number that hasn't been read yet. We may be referencing something
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// forward, so just create an entry to be resolved later and get to it...
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//
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V = new Argument(Ty);
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// Remember where this forward reference came from. FIXME, shouldn't we try
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// to recycle these things??
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CurModule.PlaceHolderInfo.insert(std::make_pair(V, std::make_pair(ID,
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llvmAsmlineno)));
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if (inFunctionScope())
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InsertValue(V, CurFun.LateResolveValues);
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else
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InsertValue(V, CurModule.LateResolveValues);
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return V;
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}
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/// getBBVal - This is used for two purposes:
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/// * If isDefinition is true, a new basic block with the specified ID is being
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/// defined.
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/// * If isDefinition is true, this is a reference to a basic block, which may
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/// or may not be a forward reference.
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///
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static BasicBlock *getBBVal(const ValID &ID, bool isDefinition = false) {
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assert(inFunctionScope() && "Can't get basic block at global scope!");
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std::string Name;
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BasicBlock *BB = 0;
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switch (ID.Type) {
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default:
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GenerateError("Illegal label reference " + ID.getName());
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return 0;
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case ValID::NumberVal: // Is it a numbered definition?
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if (unsigned(ID.Num) >= CurFun.NumberedBlocks.size())
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CurFun.NumberedBlocks.resize(ID.Num+1);
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BB = CurFun.NumberedBlocks[ID.Num];
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break;
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case ValID::NameVal: // Is it a named definition?
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Name = ID.Name;
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if (Value *N = CurFun.CurrentFunction->
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getSymbolTable().lookup(Type::LabelTy, Name))
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BB = cast<BasicBlock>(N);
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break;
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}
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// See if the block has already been defined.
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if (BB) {
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// If this is the definition of the block, make sure the existing value was
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// just a forward reference. If it was a forward reference, there will be
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// an entry for it in the PlaceHolderInfo map.
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if (isDefinition && !CurFun.BBForwardRefs.erase(BB)) {
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// The existing value was a definition, not a forward reference.
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GenerateError("Redefinition of label " + ID.getName());
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return 0;
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}
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ID.destroy(); // Free strdup'd memory.
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return BB;
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}
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// Otherwise this block has not been seen before.
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BB = new BasicBlock("", CurFun.CurrentFunction);
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if (ID.Type == ValID::NameVal) {
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BB->setName(ID.Name);
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} else {
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CurFun.NumberedBlocks[ID.Num] = BB;
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}
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// If this is not a definition, keep track of it so we can use it as a forward
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// reference.
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if (!isDefinition) {
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// Remember where this forward reference came from.
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CurFun.BBForwardRefs[BB] = std::make_pair(ID, llvmAsmlineno);
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} else {
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// The forward declaration could have been inserted anywhere in the
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// function: insert it into the correct place now.
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CurFun.CurrentFunction->getBasicBlockList().remove(BB);
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CurFun.CurrentFunction->getBasicBlockList().push_back(BB);
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}
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ID.destroy();
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return BB;
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}
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//===----------------------------------------------------------------------===//
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// Code to handle forward references in instructions
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//===----------------------------------------------------------------------===//
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//
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// This code handles the late binding needed with statements that reference
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// values not defined yet... for example, a forward branch, or the PHI node for
|
|
// a loop body.
|
|
//
|
|
// This keeps a table (CurFun.LateResolveValues) of all such forward references
|
|
// and back patchs after we are done.
|
|
//
|
|
|
|
// ResolveDefinitions - If we could not resolve some defs at parsing
|
|
// time (forward branches, phi functions for loops, etc...) resolve the
|
|
// defs now...
|
|
//
|
|
static void
|
|
ResolveDefinitions(std::map<const Type*,ValueList> &LateResolvers,
|
|
std::map<const Type*,ValueList> *FutureLateResolvers) {
|
|
// Loop over LateResolveDefs fixing up stuff that couldn't be resolved
|
|
for (std::map<const Type*,ValueList>::iterator LRI = LateResolvers.begin(),
|
|
E = LateResolvers.end(); LRI != E; ++LRI) {
|
|
ValueList &List = LRI->second;
|
|
while (!List.empty()) {
|
|
Value *V = List.back();
|
|
List.pop_back();
|
|
|
|
std::map<Value*, std::pair<ValID, int> >::iterator PHI =
|
|
CurModule.PlaceHolderInfo.find(V);
|
|
assert(PHI != CurModule.PlaceHolderInfo.end() && "Placeholder error!");
|
|
|
|
ValID &DID = PHI->second.first;
|
|
|
|
Value *TheRealValue = getValNonImprovising(LRI->first, DID);
|
|
if (TriggerError)
|
|
return;
|
|
if (TheRealValue) {
|
|
V->replaceAllUsesWith(TheRealValue);
|
|
delete V;
|
|
CurModule.PlaceHolderInfo.erase(PHI);
|
|
} else if (FutureLateResolvers) {
|
|
// Functions have their unresolved items forwarded to the module late
|
|
// resolver table
|
|
InsertValue(V, *FutureLateResolvers);
|
|
} else {
|
|
if (DID.Type == ValID::NameVal) {
|
|
GenerateError("Reference to an invalid definition: '" +DID.getName()+
|
|
"' of type '" + V->getType()->getDescription() + "'",
|
|
PHI->second.second);
|
|
return;
|
|
} else {
|
|
GenerateError("Reference to an invalid definition: #" +
|
|
itostr(DID.Num) + " of type '" +
|
|
V->getType()->getDescription() + "'",
|
|
PHI->second.second);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
LateResolvers.clear();
|
|
}
|
|
|
|
// ResolveTypeTo - A brand new type was just declared. This means that (if
|
|
// name is not null) things referencing Name can be resolved. Otherwise, things
|
|
// refering to the number can be resolved. Do this now.
|
|
//
|
|
static void ResolveTypeTo(char *Name, const Type *ToTy) {
|
|
ValID D;
|
|
if (Name) D = ValID::create(Name);
|
|
else D = ValID::create((int)CurModule.Types.size());
|
|
|
|
std::map<ValID, PATypeHolder>::iterator I =
|
|
CurModule.LateResolveTypes.find(D);
|
|
if (I != CurModule.LateResolveTypes.end()) {
|
|
((DerivedType*)I->second.get())->refineAbstractTypeTo(ToTy);
|
|
CurModule.LateResolveTypes.erase(I);
|
|
}
|
|
}
|
|
|
|
// setValueName - Set the specified value to the name given. The name may be
|
|
// null potentially, in which case this is a noop. The string passed in is
|
|
// assumed to be a malloc'd string buffer, and is free'd by this function.
|
|
//
|
|
static void setValueName(Value *V, char *NameStr) {
|
|
if (NameStr) {
|
|
std::string Name(NameStr); // Copy string
|
|
free(NameStr); // Free old string
|
|
|
|
if (V->getType() == Type::VoidTy) {
|
|
GenerateError("Can't assign name '" + Name+"' to value with void type!");
|
|
return;
|
|
}
|
|
|
|
assert(inFunctionScope() && "Must be in function scope!");
|
|
SymbolTable &ST = CurFun.CurrentFunction->getSymbolTable();
|
|
if (ST.lookup(V->getType(), Name)) {
|
|
GenerateError("Redefinition of value named '" + Name + "' in the '" +
|
|
V->getType()->getDescription() + "' type plane!");
|
|
return;
|
|
}
|
|
|
|
// Set the name.
|
|
V->setName(Name);
|
|
}
|
|
}
|
|
|
|
/// ParseGlobalVariable - Handle parsing of a global. If Initializer is null,
|
|
/// this is a declaration, otherwise it is a definition.
|
|
static GlobalVariable *
|
|
ParseGlobalVariable(char *NameStr,GlobalValue::LinkageTypes Linkage,
|
|
bool isConstantGlobal, const Type *Ty,
|
|
Constant *Initializer) {
|
|
if (isa<FunctionType>(Ty)) {
|
|
GenerateError("Cannot declare global vars of function type!");
|
|
return 0;
|
|
}
|
|
|
|
const PointerType *PTy = PointerType::get(Ty);
|
|
|
|
std::string Name;
|
|
if (NameStr) {
|
|
Name = NameStr; // Copy string
|
|
free(NameStr); // Free old string
|
|
}
|
|
|
|
// See if this global value was forward referenced. If so, recycle the
|
|
// object.
|
|
ValID ID;
|
|
if (!Name.empty()) {
|
|
ID = ValID::create((char*)Name.c_str());
|
|
} else {
|
|
ID = ValID::create((int)CurModule.Values[PTy].size());
|
|
}
|
|
|
|
if (GlobalValue *FWGV = CurModule.GetForwardRefForGlobal(PTy, ID)) {
|
|
// Move the global to the end of the list, from whereever it was
|
|
// previously inserted.
|
|
GlobalVariable *GV = cast<GlobalVariable>(FWGV);
|
|
CurModule.CurrentModule->getGlobalList().remove(GV);
|
|
CurModule.CurrentModule->getGlobalList().push_back(GV);
|
|
GV->setInitializer(Initializer);
|
|
GV->setLinkage(Linkage);
|
|
GV->setConstant(isConstantGlobal);
|
|
InsertValue(GV, CurModule.Values);
|
|
return GV;
|
|
}
|
|
|
|
// If this global has a name, check to see if there is already a definition
|
|
// of this global in the module. If so, merge as appropriate. Note that
|
|
// this is really just a hack around problems in the CFE. :(
|
|
if (!Name.empty()) {
|
|
// We are a simple redefinition of a value, check to see if it is defined
|
|
// the same as the old one.
|
|
if (GlobalVariable *EGV =
|
|
CurModule.CurrentModule->getGlobalVariable(Name, Ty)) {
|
|
// We are allowed to redefine a global variable in two circumstances:
|
|
// 1. If at least one of the globals is uninitialized or
|
|
// 2. If both initializers have the same value.
|
|
//
|
|
if (!EGV->hasInitializer() || !Initializer ||
|
|
EGV->getInitializer() == Initializer) {
|
|
|
|
// Make sure the existing global version gets the initializer! Make
|
|
// sure that it also gets marked const if the new version is.
|
|
if (Initializer && !EGV->hasInitializer())
|
|
EGV->setInitializer(Initializer);
|
|
if (isConstantGlobal)
|
|
EGV->setConstant(true);
|
|
EGV->setLinkage(Linkage);
|
|
return EGV;
|
|
}
|
|
|
|
GenerateError("Redefinition of global variable named '" + Name +
|
|
"' in the '" + Ty->getDescription() + "' type plane!");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Otherwise there is no existing GV to use, create one now.
|
|
GlobalVariable *GV =
|
|
new GlobalVariable(Ty, isConstantGlobal, Linkage, Initializer, Name,
|
|
CurModule.CurrentModule);
|
|
InsertValue(GV, CurModule.Values);
|
|
return GV;
|
|
}
|
|
|
|
// setTypeName - Set the specified type to the name given. The name may be
|
|
// null potentially, in which case this is a noop. The string passed in is
|
|
// assumed to be a malloc'd string buffer, and is freed by this function.
|
|
//
|
|
// This function returns true if the type has already been defined, but is
|
|
// allowed to be redefined in the specified context. If the name is a new name
|
|
// for the type plane, it is inserted and false is returned.
|
|
static bool setTypeName(const Type *T, char *NameStr) {
|
|
assert(!inFunctionScope() && "Can't give types function-local names!");
|
|
if (NameStr == 0) return false;
|
|
|
|
std::string Name(NameStr); // Copy string
|
|
free(NameStr); // Free old string
|
|
|
|
// We don't allow assigning names to void type
|
|
if (T == Type::VoidTy) {
|
|
GenerateError("Can't assign name '" + Name + "' to the void type!");
|
|
return false;
|
|
}
|
|
|
|
// Set the type name, checking for conflicts as we do so.
|
|
bool AlreadyExists = CurModule.CurrentModule->addTypeName(Name, T);
|
|
|
|
if (AlreadyExists) { // Inserting a name that is already defined???
|
|
const Type *Existing = CurModule.CurrentModule->getTypeByName(Name);
|
|
assert(Existing && "Conflict but no matching type?");
|
|
|
|
// There is only one case where this is allowed: when we are refining an
|
|
// opaque type. In this case, Existing will be an opaque type.
|
|
if (const OpaqueType *OpTy = dyn_cast<OpaqueType>(Existing)) {
|
|
// We ARE replacing an opaque type!
|
|
const_cast<OpaqueType*>(OpTy)->refineAbstractTypeTo(T);
|
|
return true;
|
|
}
|
|
|
|
// Otherwise, this is an attempt to redefine a type. That's okay if
|
|
// the redefinition is identical to the original. This will be so if
|
|
// Existing and T point to the same Type object. In this one case we
|
|
// allow the equivalent redefinition.
|
|
if (Existing == T) return true; // Yes, it's equal.
|
|
|
|
// Any other kind of (non-equivalent) redefinition is an error.
|
|
GenerateError("Redefinition of type named '" + Name + "' in the '" +
|
|
T->getDescription() + "' type plane!");
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Code for handling upreferences in type names...
|
|
//
|
|
|
|
// TypeContains - Returns true if Ty directly contains E in it.
|
|
//
|
|
static bool TypeContains(const Type *Ty, const Type *E) {
|
|
return std::find(Ty->subtype_begin(), Ty->subtype_end(),
|
|
E) != Ty->subtype_end();
|
|
}
|
|
|
|
namespace {
|
|
struct UpRefRecord {
|
|
// NestingLevel - The number of nesting levels that need to be popped before
|
|
// this type is resolved.
|
|
unsigned NestingLevel;
|
|
|
|
// LastContainedTy - This is the type at the current binding level for the
|
|
// type. Every time we reduce the nesting level, this gets updated.
|
|
const Type *LastContainedTy;
|
|
|
|
// UpRefTy - This is the actual opaque type that the upreference is
|
|
// represented with.
|
|
OpaqueType *UpRefTy;
|
|
|
|
UpRefRecord(unsigned NL, OpaqueType *URTy)
|
|
: NestingLevel(NL), LastContainedTy(URTy), UpRefTy(URTy) {}
|
|
};
|
|
}
|
|
|
|
// UpRefs - A list of the outstanding upreferences that need to be resolved.
|
|
static std::vector<UpRefRecord> UpRefs;
|
|
|
|
/// HandleUpRefs - Every time we finish a new layer of types, this function is
|
|
/// called. It loops through the UpRefs vector, which is a list of the
|
|
/// currently active types. For each type, if the up reference is contained in
|
|
/// the newly completed type, we decrement the level count. When the level
|
|
/// count reaches zero, the upreferenced type is the type that is passed in:
|
|
/// thus we can complete the cycle.
|
|
///
|
|
static PATypeHolder HandleUpRefs(const Type *ty) {
|
|
// If Ty isn't abstract, or if there are no up-references in it, then there is
|
|
// nothing to resolve here.
|
|
if (!ty->isAbstract() || UpRefs.empty()) return ty;
|
|
|
|
PATypeHolder Ty(ty);
|
|
UR_OUT("Type '" << Ty->getDescription() <<
|
|
"' newly formed. Resolving upreferences.\n" <<
|
|
UpRefs.size() << " upreferences active!\n");
|
|
|
|
// If we find any resolvable upreferences (i.e., those whose NestingLevel goes
|
|
// to zero), we resolve them all together before we resolve them to Ty. At
|
|
// the end of the loop, if there is anything to resolve to Ty, it will be in
|
|
// this variable.
|
|
OpaqueType *TypeToResolve = 0;
|
|
|
|
for (unsigned i = 0; i != UpRefs.size(); ++i) {
|
|
UR_OUT(" UR#" << i << " - TypeContains(" << Ty->getDescription() << ", "
|
|
<< UpRefs[i].second->getDescription() << ") = "
|
|
<< (TypeContains(Ty, UpRefs[i].second) ? "true" : "false") << "\n");
|
|
if (TypeContains(Ty, UpRefs[i].LastContainedTy)) {
|
|
// Decrement level of upreference
|
|
unsigned Level = --UpRefs[i].NestingLevel;
|
|
UpRefs[i].LastContainedTy = Ty;
|
|
UR_OUT(" Uplevel Ref Level = " << Level << "\n");
|
|
if (Level == 0) { // Upreference should be resolved!
|
|
if (!TypeToResolve) {
|
|
TypeToResolve = UpRefs[i].UpRefTy;
|
|
} else {
|
|
UR_OUT(" * Resolving upreference for "
|
|
<< UpRefs[i].second->getDescription() << "\n";
|
|
std::string OldName = UpRefs[i].UpRefTy->getDescription());
|
|
UpRefs[i].UpRefTy->refineAbstractTypeTo(TypeToResolve);
|
|
UR_OUT(" * Type '" << OldName << "' refined upreference to: "
|
|
<< (const void*)Ty << ", " << Ty->getDescription() << "\n");
|
|
}
|
|
UpRefs.erase(UpRefs.begin()+i); // Remove from upreference list...
|
|
--i; // Do not skip the next element...
|
|
}
|
|
}
|
|
}
|
|
|
|
if (TypeToResolve) {
|
|
UR_OUT(" * Resolving upreference for "
|
|
<< UpRefs[i].second->getDescription() << "\n";
|
|
std::string OldName = TypeToResolve->getDescription());
|
|
TypeToResolve->refineAbstractTypeTo(Ty);
|
|
}
|
|
|
|
return Ty;
|
|
}
|
|
|
|
/// This function is used to obtain the correct opcode for an instruction when
|
|
/// an obsolete opcode is encountered. The OI parameter (OpcodeInfo) has both
|
|
/// an opcode and an "obsolete" flag. These are generated by the lexer and
|
|
/// the "obsolete" member will be true when the lexer encounters the token for
|
|
/// an obsolete opcode. For example, "div" was replaced by [usf]div but we need
|
|
/// to maintain backwards compatibility for asm files that still have the "div"
|
|
/// instruction. This function handles converting div -> [usf]div appropriately.
|
|
/// @brief Convert obsolete opcodes to new values
|
|
static void
|
|
sanitizeOpCode(OpcodeInfo<Instruction::BinaryOps> &OI, const PATypeHolder& PATy)
|
|
{
|
|
// If its not obsolete, don't do anything
|
|
if (!OI.obsolete)
|
|
return;
|
|
|
|
// If its a packed type we want to use the element type
|
|
const Type* Ty = PATy;
|
|
if (const PackedType* PTy = dyn_cast<PackedType>(Ty))
|
|
Ty = PTy->getElementType();
|
|
|
|
// Depending on the opcode ..
|
|
switch (OI.opcode) {
|
|
default:
|
|
GenerateError("Invalid obsolete opCode (check Lexer.l)");
|
|
break;
|
|
case Instruction::UDiv:
|
|
// Handle cases where the opcode needs to change
|
|
if (Ty->isFloatingPoint())
|
|
OI.opcode = Instruction::FDiv;
|
|
else if (Ty->isSigned())
|
|
OI.opcode = Instruction::SDiv;
|
|
break;
|
|
case Instruction::URem:
|
|
if (Ty->isFloatingPoint())
|
|
OI.opcode = Instruction::FRem;
|
|
else if (Ty->isSigned())
|
|
OI.opcode = Instruction::SRem;
|
|
break;
|
|
}
|
|
// Its not obsolete any more, we fixed it.
|
|
OI.obsolete = false;
|
|
}
|
|
|
|
// common code from the two 'RunVMAsmParser' functions
|
|
static Module* RunParser(Module * M) {
|
|
|
|
llvmAsmlineno = 1; // Reset the current line number...
|
|
ObsoleteVarArgs = false;
|
|
NewVarArgs = false;
|
|
CurModule.CurrentModule = M;
|
|
|
|
// Check to make sure the parser succeeded
|
|
if (yyparse()) {
|
|
if (ParserResult)
|
|
delete ParserResult;
|
|
return 0;
|
|
}
|
|
|
|
// Check to make sure that parsing produced a result
|
|
if (!ParserResult)
|
|
return 0;
|
|
|
|
// Reset ParserResult variable while saving its value for the result.
|
|
Module *Result = ParserResult;
|
|
ParserResult = 0;
|
|
|
|
//Not all functions use vaarg, so make a second check for ObsoleteVarArgs
|
|
{
|
|
Function* F;
|
|
if ((F = Result->getNamedFunction("llvm.va_start"))
|
|
&& F->getFunctionType()->getNumParams() == 0)
|
|
ObsoleteVarArgs = true;
|
|
if((F = Result->getNamedFunction("llvm.va_copy"))
|
|
&& F->getFunctionType()->getNumParams() == 1)
|
|
ObsoleteVarArgs = true;
|
|
}
|
|
|
|
if (ObsoleteVarArgs && NewVarArgs) {
|
|
GenerateError(
|
|
"This file is corrupt: it uses both new and old style varargs");
|
|
return 0;
|
|
}
|
|
|
|
if(ObsoleteVarArgs) {
|
|
if(Function* F = Result->getNamedFunction("llvm.va_start")) {
|
|
if (F->arg_size() != 0) {
|
|
GenerateError("Obsolete va_start takes 0 argument!");
|
|
return 0;
|
|
}
|
|
|
|
//foo = va_start()
|
|
// ->
|
|
//bar = alloca typeof(foo)
|
|
//va_start(bar)
|
|
//foo = load bar
|
|
|
|
const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
|
|
const Type* ArgTy = F->getFunctionType()->getReturnType();
|
|
const Type* ArgTyPtr = PointerType::get(ArgTy);
|
|
Function* NF = Result->getOrInsertFunction("llvm.va_start",
|
|
RetTy, ArgTyPtr, (Type *)0);
|
|
|
|
while (!F->use_empty()) {
|
|
CallInst* CI = cast<CallInst>(F->use_back());
|
|
AllocaInst* bar = new AllocaInst(ArgTy, 0, "vastart.fix.1", CI);
|
|
new CallInst(NF, bar, "", CI);
|
|
Value* foo = new LoadInst(bar, "vastart.fix.2", CI);
|
|
CI->replaceAllUsesWith(foo);
|
|
CI->getParent()->getInstList().erase(CI);
|
|
}
|
|
Result->getFunctionList().erase(F);
|
|
}
|
|
|
|
if(Function* F = Result->getNamedFunction("llvm.va_end")) {
|
|
if(F->arg_size() != 1) {
|
|
GenerateError("Obsolete va_end takes 1 argument!");
|
|
return 0;
|
|
}
|
|
|
|
//vaend foo
|
|
// ->
|
|
//bar = alloca 1 of typeof(foo)
|
|
//vaend bar
|
|
const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
|
|
const Type* ArgTy = F->getFunctionType()->getParamType(0);
|
|
const Type* ArgTyPtr = PointerType::get(ArgTy);
|
|
Function* NF = Result->getOrInsertFunction("llvm.va_end",
|
|
RetTy, ArgTyPtr, (Type *)0);
|
|
|
|
while (!F->use_empty()) {
|
|
CallInst* CI = cast<CallInst>(F->use_back());
|
|
AllocaInst* bar = new AllocaInst(ArgTy, 0, "vaend.fix.1", CI);
|
|
new StoreInst(CI->getOperand(1), bar, CI);
|
|
new CallInst(NF, bar, "", CI);
|
|
CI->getParent()->getInstList().erase(CI);
|
|
}
|
|
Result->getFunctionList().erase(F);
|
|
}
|
|
|
|
if(Function* F = Result->getNamedFunction("llvm.va_copy")) {
|
|
if(F->arg_size() != 1) {
|
|
GenerateError("Obsolete va_copy takes 1 argument!");
|
|
return 0;
|
|
}
|
|
//foo = vacopy(bar)
|
|
// ->
|
|
//a = alloca 1 of typeof(foo)
|
|
//b = alloca 1 of typeof(foo)
|
|
//store bar -> b
|
|
//vacopy(a, b)
|
|
//foo = load a
|
|
|
|
const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
|
|
const Type* ArgTy = F->getFunctionType()->getReturnType();
|
|
const Type* ArgTyPtr = PointerType::get(ArgTy);
|
|
Function* NF = Result->getOrInsertFunction("llvm.va_copy",
|
|
RetTy, ArgTyPtr, ArgTyPtr,
|
|
(Type *)0);
|
|
|
|
while (!F->use_empty()) {
|
|
CallInst* CI = cast<CallInst>(F->use_back());
|
|
AllocaInst* a = new AllocaInst(ArgTy, 0, "vacopy.fix.1", CI);
|
|
AllocaInst* b = new AllocaInst(ArgTy, 0, "vacopy.fix.2", CI);
|
|
new StoreInst(CI->getOperand(1), b, CI);
|
|
new CallInst(NF, a, b, "", CI);
|
|
Value* foo = new LoadInst(a, "vacopy.fix.3", CI);
|
|
CI->replaceAllUsesWith(foo);
|
|
CI->getParent()->getInstList().erase(CI);
|
|
}
|
|
Result->getFunctionList().erase(F);
|
|
}
|
|
}
|
|
|
|
return Result;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// RunVMAsmParser - Define an interface to this parser
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
|
|
set_scan_file(F);
|
|
|
|
CurFilename = Filename;
|
|
return RunParser(new Module(CurFilename));
|
|
}
|
|
|
|
Module *llvm::RunVMAsmParser(const char * AsmString, Module * M) {
|
|
set_scan_string(AsmString);
|
|
|
|
CurFilename = "from_memory";
|
|
if (M == NULL) {
|
|
return RunParser(new Module (CurFilename));
|
|
} else {
|
|
return RunParser(M);
|
|
}
|
|
}
|
|
|
|
%}
|
|
|
|
%union {
|
|
llvm::Module *ModuleVal;
|
|
llvm::Function *FunctionVal;
|
|
std::pair<llvm::PATypeHolder*, char*> *ArgVal;
|
|
llvm::BasicBlock *BasicBlockVal;
|
|
llvm::TerminatorInst *TermInstVal;
|
|
llvm::Instruction *InstVal;
|
|
llvm::Constant *ConstVal;
|
|
|
|
const llvm::Type *PrimType;
|
|
llvm::PATypeHolder *TypeVal;
|
|
llvm::Value *ValueVal;
|
|
|
|
std::vector<std::pair<llvm::PATypeHolder*,char*> > *ArgList;
|
|
std::vector<llvm::Value*> *ValueList;
|
|
std::list<llvm::PATypeHolder> *TypeList;
|
|
// Represent the RHS of PHI node
|
|
std::list<std::pair<llvm::Value*,
|
|
llvm::BasicBlock*> > *PHIList;
|
|
std::vector<std::pair<llvm::Constant*, llvm::BasicBlock*> > *JumpTable;
|
|
std::vector<llvm::Constant*> *ConstVector;
|
|
|
|
llvm::GlobalValue::LinkageTypes Linkage;
|
|
int64_t SInt64Val;
|
|
uint64_t UInt64Val;
|
|
int SIntVal;
|
|
unsigned UIntVal;
|
|
double FPVal;
|
|
bool BoolVal;
|
|
|
|
char *StrVal; // This memory is strdup'd!
|
|
llvm::ValID ValIDVal; // strdup'd memory maybe!
|
|
|
|
BinaryOpInfo BinaryOpVal;
|
|
TermOpInfo TermOpVal;
|
|
MemOpInfo MemOpVal;
|
|
OtherOpInfo OtherOpVal;
|
|
llvm::Module::Endianness Endianness;
|
|
}
|
|
|
|
%type <ModuleVal> Module FunctionList
|
|
%type <FunctionVal> Function FunctionProto FunctionHeader BasicBlockList
|
|
%type <BasicBlockVal> BasicBlock InstructionList
|
|
%type <TermInstVal> BBTerminatorInst
|
|
%type <InstVal> Inst InstVal MemoryInst
|
|
%type <ConstVal> ConstVal ConstExpr
|
|
%type <ConstVector> ConstVector
|
|
%type <ArgList> ArgList ArgListH
|
|
%type <ArgVal> ArgVal
|
|
%type <PHIList> PHIList
|
|
%type <ValueList> ValueRefList ValueRefListE // For call param lists
|
|
%type <ValueList> IndexList // For GEP derived indices
|
|
%type <TypeList> TypeListI ArgTypeListI
|
|
%type <JumpTable> JumpTable
|
|
%type <BoolVal> GlobalType // GLOBAL or CONSTANT?
|
|
%type <BoolVal> OptVolatile // 'volatile' or not
|
|
%type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
|
|
%type <BoolVal> OptSideEffect // 'sideeffect' or not.
|
|
%type <Linkage> OptLinkage
|
|
%type <Endianness> BigOrLittle
|
|
|
|
// ValueRef - Unresolved reference to a definition or BB
|
|
%type <ValIDVal> ValueRef ConstValueRef SymbolicValueRef
|
|
%type <ValueVal> ResolvedVal // <type> <valref> pair
|
|
// Tokens and types for handling constant integer values
|
|
//
|
|
// ESINT64VAL - A negative number within long long range
|
|
%token <SInt64Val> ESINT64VAL
|
|
|
|
// EUINT64VAL - A positive number within uns. long long range
|
|
%token <UInt64Val> EUINT64VAL
|
|
%type <SInt64Val> EINT64VAL
|
|
|
|
%token <SIntVal> SINTVAL // Signed 32 bit ints...
|
|
%token <UIntVal> UINTVAL // Unsigned 32 bit ints...
|
|
%type <SIntVal> INTVAL
|
|
%token <FPVal> FPVAL // Float or Double constant
|
|
|
|
// Built in types...
|
|
%type <TypeVal> Types TypesV UpRTypes UpRTypesV
|
|
%type <PrimType> SIntType UIntType IntType FPType PrimType // Classifications
|
|
%token <PrimType> VOID BOOL SBYTE UBYTE SHORT USHORT INT UINT LONG ULONG
|
|
%token <PrimType> FLOAT DOUBLE TYPE LABEL
|
|
|
|
%token <StrVal> VAR_ID LABELSTR STRINGCONSTANT
|
|
%type <StrVal> Name OptName OptAssign
|
|
%type <UIntVal> OptAlign OptCAlign
|
|
%type <StrVal> OptSection SectionString
|
|
|
|
%token IMPLEMENTATION ZEROINITIALIZER TRUETOK FALSETOK BEGINTOK ENDTOK
|
|
%token DECLARE GLOBAL CONSTANT SECTION VOLATILE
|
|
%token TO DOTDOTDOT NULL_TOK UNDEF CONST INTERNAL LINKONCE WEAK APPENDING
|
|
%token DLLIMPORT DLLEXPORT EXTERN_WEAK
|
|
%token OPAQUE NOT EXTERNAL TARGET TRIPLE ENDIAN POINTERSIZE LITTLE BIG ALIGN
|
|
%token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
|
|
%token CC_TOK CCC_TOK CSRETCC_TOK FASTCC_TOK COLDCC_TOK
|
|
%token X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
|
|
%token DATALAYOUT
|
|
%type <UIntVal> OptCallingConv
|
|
|
|
// Basic Block Terminating Operators
|
|
%token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
|
|
|
|
// Binary Operators
|
|
%type <BinaryOpVal> ArithmeticOps LogicalOps SetCondOps // Binops Subcatagories
|
|
%token <BinaryOpVal> ADD SUB MUL UDIV SDIV FDIV UREM SREM FREM AND OR XOR
|
|
%token <BinaryOpVal> SETLE SETGE SETLT SETGT SETEQ SETNE // Binary Comparators
|
|
|
|
// Memory Instructions
|
|
%token <MemOpVal> MALLOC ALLOCA FREE LOAD STORE GETELEMENTPTR
|
|
|
|
// Other Operators
|
|
%type <OtherOpVal> ShiftOps
|
|
%token <OtherOpVal> PHI_TOK CAST SELECT SHL SHR VAARG
|
|
%token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
|
|
%token VAARG_old VANEXT_old //OBSOLETE
|
|
|
|
|
|
%start Module
|
|
%%
|
|
|
|
// Handle constant integer size restriction and conversion...
|
|
//
|
|
INTVAL : SINTVAL;
|
|
INTVAL : UINTVAL {
|
|
if ($1 > (uint32_t)INT32_MAX) // Outside of my range!
|
|
GEN_ERROR("Value too large for type!");
|
|
$$ = (int32_t)$1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
EINT64VAL : ESINT64VAL; // These have same type and can't cause problems...
|
|
EINT64VAL : EUINT64VAL {
|
|
if ($1 > (uint64_t)INT64_MAX) // Outside of my range!
|
|
GEN_ERROR("Value too large for type!");
|
|
$$ = (int64_t)$1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// Operations that are notably excluded from this list include:
|
|
// RET, BR, & SWITCH because they end basic blocks and are treated specially.
|
|
//
|
|
ArithmeticOps: ADD | SUB | MUL | UDIV | SDIV | FDIV | UREM | SREM | FREM;
|
|
LogicalOps : AND | OR | XOR;
|
|
SetCondOps : SETLE | SETGE | SETLT | SETGT | SETEQ | SETNE;
|
|
|
|
ShiftOps : SHL | SHR;
|
|
|
|
// These are some types that allow classification if we only want a particular
|
|
// thing... for example, only a signed, unsigned, or integral type.
|
|
SIntType : LONG | INT | SHORT | SBYTE;
|
|
UIntType : ULONG | UINT | USHORT | UBYTE;
|
|
IntType : SIntType | UIntType;
|
|
FPType : FLOAT | DOUBLE;
|
|
|
|
// OptAssign - Value producing statements have an optional assignment component
|
|
OptAssign : Name '=' {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| /*empty*/ {
|
|
$$ = 0;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
OptLinkage : INTERNAL { $$ = GlobalValue::InternalLinkage; } |
|
|
LINKONCE { $$ = GlobalValue::LinkOnceLinkage; } |
|
|
WEAK { $$ = GlobalValue::WeakLinkage; } |
|
|
APPENDING { $$ = GlobalValue::AppendingLinkage; } |
|
|
DLLIMPORT { $$ = GlobalValue::DLLImportLinkage; } |
|
|
DLLEXPORT { $$ = GlobalValue::DLLExportLinkage; } |
|
|
EXTERN_WEAK { $$ = GlobalValue::ExternalWeakLinkage; } |
|
|
/*empty*/ { $$ = GlobalValue::ExternalLinkage; };
|
|
|
|
OptCallingConv : /*empty*/ { $$ = CallingConv::C; } |
|
|
CCC_TOK { $$ = CallingConv::C; } |
|
|
CSRETCC_TOK { $$ = CallingConv::CSRet; } |
|
|
FASTCC_TOK { $$ = CallingConv::Fast; } |
|
|
COLDCC_TOK { $$ = CallingConv::Cold; } |
|
|
X86_STDCALLCC_TOK { $$ = CallingConv::X86_StdCall; } |
|
|
X86_FASTCALLCC_TOK { $$ = CallingConv::X86_FastCall; } |
|
|
CC_TOK EUINT64VAL {
|
|
if ((unsigned)$2 != $2)
|
|
GEN_ERROR("Calling conv too large!");
|
|
$$ = $2;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// OptAlign/OptCAlign - An optional alignment, and an optional alignment with
|
|
// a comma before it.
|
|
OptAlign : /*empty*/ { $$ = 0; } |
|
|
ALIGN EUINT64VAL {
|
|
$$ = $2;
|
|
if ($$ != 0 && !isPowerOf2_32($$))
|
|
GEN_ERROR("Alignment must be a power of two!");
|
|
CHECK_FOR_ERROR
|
|
};
|
|
OptCAlign : /*empty*/ { $$ = 0; } |
|
|
',' ALIGN EUINT64VAL {
|
|
$$ = $3;
|
|
if ($$ != 0 && !isPowerOf2_32($$))
|
|
GEN_ERROR("Alignment must be a power of two!");
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
SectionString : SECTION STRINGCONSTANT {
|
|
for (unsigned i = 0, e = strlen($2); i != e; ++i)
|
|
if ($2[i] == '"' || $2[i] == '\\')
|
|
GEN_ERROR("Invalid character in section name!");
|
|
$$ = $2;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
OptSection : /*empty*/ { $$ = 0; } |
|
|
SectionString { $$ = $1; };
|
|
|
|
// GlobalVarAttributes - Used to pass the attributes string on a global. CurGV
|
|
// is set to be the global we are processing.
|
|
//
|
|
GlobalVarAttributes : /* empty */ {} |
|
|
',' GlobalVarAttribute GlobalVarAttributes {};
|
|
GlobalVarAttribute : SectionString {
|
|
CurGV->setSection($1);
|
|
free($1);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ALIGN EUINT64VAL {
|
|
if ($2 != 0 && !isPowerOf2_32($2))
|
|
GEN_ERROR("Alignment must be a power of two!");
|
|
CurGV->setAlignment($2);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Types includes all predefined types... except void, because it can only be
|
|
// used in specific contexts (function returning void for example). To have
|
|
// access to it, a user must explicitly use TypesV.
|
|
//
|
|
|
|
// TypesV includes all of 'Types', but it also includes the void type.
|
|
TypesV : Types | VOID { $$ = new PATypeHolder($1); };
|
|
UpRTypesV : UpRTypes | VOID { $$ = new PATypeHolder($1); };
|
|
|
|
Types : UpRTypes {
|
|
if (!UpRefs.empty())
|
|
GEN_ERROR("Invalid upreference in type: " + (*$1)->getDescription());
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
// Derived types are added later...
|
|
//
|
|
PrimType : BOOL | SBYTE | UBYTE | SHORT | USHORT | INT | UINT ;
|
|
PrimType : LONG | ULONG | FLOAT | DOUBLE | TYPE | LABEL;
|
|
UpRTypes : OPAQUE {
|
|
$$ = new PATypeHolder(OpaqueType::get());
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| PrimType {
|
|
$$ = new PATypeHolder($1);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
UpRTypes : SymbolicValueRef { // Named types are also simple types...
|
|
const Type* tmp = getTypeVal($1);
|
|
CHECK_FOR_ERROR
|
|
$$ = new PATypeHolder(tmp);
|
|
};
|
|
|
|
// Include derived types in the Types production.
|
|
//
|
|
UpRTypes : '\\' EUINT64VAL { // Type UpReference
|
|
if ($2 > (uint64_t)~0U) GEN_ERROR("Value out of range!");
|
|
OpaqueType *OT = OpaqueType::get(); // Use temporary placeholder
|
|
UpRefs.push_back(UpRefRecord((unsigned)$2, OT)); // Add to vector...
|
|
$$ = new PATypeHolder(OT);
|
|
UR_OUT("New Upreference!\n");
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| UpRTypesV '(' ArgTypeListI ')' { // Function derived type?
|
|
std::vector<const Type*> Params;
|
|
for (std::list<llvm::PATypeHolder>::iterator I = $3->begin(),
|
|
E = $3->end(); I != E; ++I)
|
|
Params.push_back(*I);
|
|
bool isVarArg = Params.size() && Params.back() == Type::VoidTy;
|
|
if (isVarArg) Params.pop_back();
|
|
|
|
$$ = new PATypeHolder(HandleUpRefs(FunctionType::get(*$1,Params,isVarArg)));
|
|
delete $3; // Delete the argument list
|
|
delete $1; // Delete the return type handle
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| '[' EUINT64VAL 'x' UpRTypes ']' { // Sized array type?
|
|
$$ = new PATypeHolder(HandleUpRefs(ArrayType::get(*$4, (unsigned)$2)));
|
|
delete $4;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| '<' EUINT64VAL 'x' UpRTypes '>' { // Packed array type?
|
|
const llvm::Type* ElemTy = $4->get();
|
|
if ((unsigned)$2 != $2)
|
|
GEN_ERROR("Unsigned result not equal to signed result");
|
|
if (!ElemTy->isPrimitiveType())
|
|
GEN_ERROR("Elemental type of a PackedType must be primitive");
|
|
if (!isPowerOf2_32($2))
|
|
GEN_ERROR("Vector length should be a power of 2!");
|
|
$$ = new PATypeHolder(HandleUpRefs(PackedType::get(*$4, (unsigned)$2)));
|
|
delete $4;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| '{' TypeListI '}' { // Structure type?
|
|
std::vector<const Type*> Elements;
|
|
for (std::list<llvm::PATypeHolder>::iterator I = $2->begin(),
|
|
E = $2->end(); I != E; ++I)
|
|
Elements.push_back(*I);
|
|
|
|
$$ = new PATypeHolder(HandleUpRefs(StructType::get(Elements)));
|
|
delete $2;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| '{' '}' { // Empty structure type?
|
|
$$ = new PATypeHolder(StructType::get(std::vector<const Type*>()));
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| UpRTypes '*' { // Pointer type?
|
|
if (*$1 == Type::LabelTy)
|
|
GEN_ERROR("Cannot form a pointer to a basic block");
|
|
$$ = new PATypeHolder(HandleUpRefs(PointerType::get(*$1)));
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// TypeList - Used for struct declarations and as a basis for function type
|
|
// declaration type lists
|
|
//
|
|
TypeListI : UpRTypes {
|
|
$$ = new std::list<PATypeHolder>();
|
|
$$->push_back(*$1); delete $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| TypeListI ',' UpRTypes {
|
|
($$=$1)->push_back(*$3); delete $3;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// ArgTypeList - List of types for a function type declaration...
|
|
ArgTypeListI : TypeListI
|
|
| TypeListI ',' DOTDOTDOT {
|
|
($$=$1)->push_back(Type::VoidTy);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| DOTDOTDOT {
|
|
($$ = new std::list<PATypeHolder>())->push_back(Type::VoidTy);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| /*empty*/ {
|
|
$$ = new std::list<PATypeHolder>();
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// ConstVal - The various declarations that go into the constant pool. This
|
|
// production is used ONLY to represent constants that show up AFTER a 'const',
|
|
// 'constant' or 'global' token at global scope. Constants that can be inlined
|
|
// into other expressions (such as integers and constexprs) are handled by the
|
|
// ResolvedVal, ValueRef and ConstValueRef productions.
|
|
//
|
|
ConstVal: Types '[' ConstVector ']' { // Nonempty unsized arr
|
|
const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
|
|
if (ATy == 0)
|
|
GEN_ERROR("Cannot make array constant with type: '" +
|
|
(*$1)->getDescription() + "'!");
|
|
const Type *ETy = ATy->getElementType();
|
|
int NumElements = ATy->getNumElements();
|
|
|
|
// Verify that we have the correct size...
|
|
if (NumElements != -1 && NumElements != (int)$3->size())
|
|
GEN_ERROR("Type mismatch: constant sized array initialized with " +
|
|
utostr($3->size()) + " arguments, but has size of " +
|
|
itostr(NumElements) + "!");
|
|
|
|
// Verify all elements are correct type!
|
|
for (unsigned i = 0; i < $3->size(); i++) {
|
|
if (ETy != (*$3)[i]->getType())
|
|
GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
|
|
ETy->getDescription() +"' as required!\nIt is of type '"+
|
|
(*$3)[i]->getType()->getDescription() + "'.");
|
|
}
|
|
|
|
$$ = ConstantArray::get(ATy, *$3);
|
|
delete $1; delete $3;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types '[' ']' {
|
|
const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
|
|
if (ATy == 0)
|
|
GEN_ERROR("Cannot make array constant with type: '" +
|
|
(*$1)->getDescription() + "'!");
|
|
|
|
int NumElements = ATy->getNumElements();
|
|
if (NumElements != -1 && NumElements != 0)
|
|
GEN_ERROR("Type mismatch: constant sized array initialized with 0"
|
|
" arguments, but has size of " + itostr(NumElements) +"!");
|
|
$$ = ConstantArray::get(ATy, std::vector<Constant*>());
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types 'c' STRINGCONSTANT {
|
|
const ArrayType *ATy = dyn_cast<ArrayType>($1->get());
|
|
if (ATy == 0)
|
|
GEN_ERROR("Cannot make array constant with type: '" +
|
|
(*$1)->getDescription() + "'!");
|
|
|
|
int NumElements = ATy->getNumElements();
|
|
const Type *ETy = ATy->getElementType();
|
|
char *EndStr = UnEscapeLexed($3, true);
|
|
if (NumElements != -1 && NumElements != (EndStr-$3))
|
|
GEN_ERROR("Can't build string constant of size " +
|
|
itostr((int)(EndStr-$3)) +
|
|
" when array has size " + itostr(NumElements) + "!");
|
|
std::vector<Constant*> Vals;
|
|
if (ETy == Type::SByteTy) {
|
|
for (signed char *C = (signed char *)$3; C != (signed char *)EndStr; ++C)
|
|
Vals.push_back(ConstantInt::get(ETy, *C));
|
|
} else if (ETy == Type::UByteTy) {
|
|
for (unsigned char *C = (unsigned char *)$3;
|
|
C != (unsigned char*)EndStr; ++C)
|
|
Vals.push_back(ConstantInt::get(ETy, *C));
|
|
} else {
|
|
free($3);
|
|
GEN_ERROR("Cannot build string arrays of non byte sized elements!");
|
|
}
|
|
free($3);
|
|
$$ = ConstantArray::get(ATy, Vals);
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types '<' ConstVector '>' { // Nonempty unsized arr
|
|
const PackedType *PTy = dyn_cast<PackedType>($1->get());
|
|
if (PTy == 0)
|
|
GEN_ERROR("Cannot make packed constant with type: '" +
|
|
(*$1)->getDescription() + "'!");
|
|
const Type *ETy = PTy->getElementType();
|
|
int NumElements = PTy->getNumElements();
|
|
|
|
// Verify that we have the correct size...
|
|
if (NumElements != -1 && NumElements != (int)$3->size())
|
|
GEN_ERROR("Type mismatch: constant sized packed initialized with " +
|
|
utostr($3->size()) + " arguments, but has size of " +
|
|
itostr(NumElements) + "!");
|
|
|
|
// Verify all elements are correct type!
|
|
for (unsigned i = 0; i < $3->size(); i++) {
|
|
if (ETy != (*$3)[i]->getType())
|
|
GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
|
|
ETy->getDescription() +"' as required!\nIt is of type '"+
|
|
(*$3)[i]->getType()->getDescription() + "'.");
|
|
}
|
|
|
|
$$ = ConstantPacked::get(PTy, *$3);
|
|
delete $1; delete $3;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types '{' ConstVector '}' {
|
|
const StructType *STy = dyn_cast<StructType>($1->get());
|
|
if (STy == 0)
|
|
GEN_ERROR("Cannot make struct constant with type: '" +
|
|
(*$1)->getDescription() + "'!");
|
|
|
|
if ($3->size() != STy->getNumContainedTypes())
|
|
GEN_ERROR("Illegal number of initializers for structure type!");
|
|
|
|
// Check to ensure that constants are compatible with the type initializer!
|
|
for (unsigned i = 0, e = $3->size(); i != e; ++i)
|
|
if ((*$3)[i]->getType() != STy->getElementType(i))
|
|
GEN_ERROR("Expected type '" +
|
|
STy->getElementType(i)->getDescription() +
|
|
"' for element #" + utostr(i) +
|
|
" of structure initializer!");
|
|
|
|
$$ = ConstantStruct::get(STy, *$3);
|
|
delete $1; delete $3;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types '{' '}' {
|
|
const StructType *STy = dyn_cast<StructType>($1->get());
|
|
if (STy == 0)
|
|
GEN_ERROR("Cannot make struct constant with type: '" +
|
|
(*$1)->getDescription() + "'!");
|
|
|
|
if (STy->getNumContainedTypes() != 0)
|
|
GEN_ERROR("Illegal number of initializers for structure type!");
|
|
|
|
$$ = ConstantStruct::get(STy, std::vector<Constant*>());
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types NULL_TOK {
|
|
const PointerType *PTy = dyn_cast<PointerType>($1->get());
|
|
if (PTy == 0)
|
|
GEN_ERROR("Cannot make null pointer constant with type: '" +
|
|
(*$1)->getDescription() + "'!");
|
|
|
|
$$ = ConstantPointerNull::get(PTy);
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types UNDEF {
|
|
$$ = UndefValue::get($1->get());
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types SymbolicValueRef {
|
|
const PointerType *Ty = dyn_cast<PointerType>($1->get());
|
|
if (Ty == 0)
|
|
GEN_ERROR("Global const reference must be a pointer type!");
|
|
|
|
// ConstExprs can exist in the body of a function, thus creating
|
|
// GlobalValues whenever they refer to a variable. Because we are in
|
|
// the context of a function, getValNonImprovising will search the functions
|
|
// symbol table instead of the module symbol table for the global symbol,
|
|
// which throws things all off. To get around this, we just tell
|
|
// getValNonImprovising that we are at global scope here.
|
|
//
|
|
Function *SavedCurFn = CurFun.CurrentFunction;
|
|
CurFun.CurrentFunction = 0;
|
|
|
|
Value *V = getValNonImprovising(Ty, $2);
|
|
CHECK_FOR_ERROR
|
|
|
|
CurFun.CurrentFunction = SavedCurFn;
|
|
|
|
// If this is an initializer for a constant pointer, which is referencing a
|
|
// (currently) undefined variable, create a stub now that shall be replaced
|
|
// in the future with the right type of variable.
|
|
//
|
|
if (V == 0) {
|
|
assert(isa<PointerType>(Ty) && "Globals may only be used as pointers!");
|
|
const PointerType *PT = cast<PointerType>(Ty);
|
|
|
|
// First check to see if the forward references value is already created!
|
|
PerModuleInfo::GlobalRefsType::iterator I =
|
|
CurModule.GlobalRefs.find(std::make_pair(PT, $2));
|
|
|
|
if (I != CurModule.GlobalRefs.end()) {
|
|
V = I->second; // Placeholder already exists, use it...
|
|
$2.destroy();
|
|
} else {
|
|
std::string Name;
|
|
if ($2.Type == ValID::NameVal) Name = $2.Name;
|
|
|
|
// Create the forward referenced global.
|
|
GlobalValue *GV;
|
|
if (const FunctionType *FTy =
|
|
dyn_cast<FunctionType>(PT->getElementType())) {
|
|
GV = new Function(FTy, GlobalValue::ExternalLinkage, Name,
|
|
CurModule.CurrentModule);
|
|
} else {
|
|
GV = new GlobalVariable(PT->getElementType(), false,
|
|
GlobalValue::ExternalLinkage, 0,
|
|
Name, CurModule.CurrentModule);
|
|
}
|
|
|
|
// Keep track of the fact that we have a forward ref to recycle it
|
|
CurModule.GlobalRefs.insert(std::make_pair(std::make_pair(PT, $2), GV));
|
|
V = GV;
|
|
}
|
|
}
|
|
|
|
$$ = cast<GlobalValue>(V);
|
|
delete $1; // Free the type handle
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types ConstExpr {
|
|
if ($1->get() != $2->getType())
|
|
GEN_ERROR("Mismatched types for constant expression!");
|
|
$$ = $2;
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Types ZEROINITIALIZER {
|
|
const Type *Ty = $1->get();
|
|
if (isa<FunctionType>(Ty) || Ty == Type::LabelTy || isa<OpaqueType>(Ty))
|
|
GEN_ERROR("Cannot create a null initialized value of this type!");
|
|
$$ = Constant::getNullValue(Ty);
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
ConstVal : SIntType EINT64VAL { // integral constants
|
|
if (!ConstantInt::isValueValidForType($1, $2))
|
|
GEN_ERROR("Constant value doesn't fit in type!");
|
|
$$ = ConstantInt::get($1, $2);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| UIntType EUINT64VAL { // integral constants
|
|
if (!ConstantInt::isValueValidForType($1, $2))
|
|
GEN_ERROR("Constant value doesn't fit in type!");
|
|
$$ = ConstantInt::get($1, $2);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| BOOL TRUETOK { // Boolean constants
|
|
$$ = ConstantBool::getTrue();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| BOOL FALSETOK { // Boolean constants
|
|
$$ = ConstantBool::getFalse();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| FPType FPVAL { // Float & Double constants
|
|
if (!ConstantFP::isValueValidForType($1, $2))
|
|
GEN_ERROR("Floating point constant invalid for type!!");
|
|
$$ = ConstantFP::get($1, $2);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
ConstExpr: CAST '(' ConstVal TO Types ')' {
|
|
if (!$3->getType()->isFirstClassType())
|
|
GEN_ERROR("cast constant expression from a non-primitive type: '" +
|
|
$3->getType()->getDescription() + "'!");
|
|
if (!$5->get()->isFirstClassType())
|
|
GEN_ERROR("cast constant expression to a non-primitive type: '" +
|
|
$5->get()->getDescription() + "'!");
|
|
$$ = ConstantExpr::getCast($3, $5->get());
|
|
delete $5;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| GETELEMENTPTR '(' ConstVal IndexList ')' {
|
|
if (!isa<PointerType>($3->getType()))
|
|
GEN_ERROR("GetElementPtr requires a pointer operand!");
|
|
|
|
// LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte struct
|
|
// indices to uint struct indices for compatibility.
|
|
generic_gep_type_iterator<std::vector<Value*>::iterator>
|
|
GTI = gep_type_begin($3->getType(), $4->begin(), $4->end()),
|
|
GTE = gep_type_end($3->getType(), $4->begin(), $4->end());
|
|
for (unsigned i = 0, e = $4->size(); i != e && GTI != GTE; ++i, ++GTI)
|
|
if (isa<StructType>(*GTI)) // Only change struct indices
|
|
if (ConstantInt *CUI = dyn_cast<ConstantInt>((*$4)[i]))
|
|
if (CUI->getType() == Type::UByteTy)
|
|
(*$4)[i] = ConstantExpr::getCast(CUI, Type::UIntTy);
|
|
|
|
const Type *IdxTy =
|
|
GetElementPtrInst::getIndexedType($3->getType(), *$4, true);
|
|
if (!IdxTy)
|
|
GEN_ERROR("Index list invalid for constant getelementptr!");
|
|
|
|
std::vector<Constant*> IdxVec;
|
|
for (unsigned i = 0, e = $4->size(); i != e; ++i)
|
|
if (Constant *C = dyn_cast<Constant>((*$4)[i]))
|
|
IdxVec.push_back(C);
|
|
else
|
|
GEN_ERROR("Indices to constant getelementptr must be constants!");
|
|
|
|
delete $4;
|
|
|
|
$$ = ConstantExpr::getGetElementPtr($3, IdxVec);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| SELECT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
|
|
if ($3->getType() != Type::BoolTy)
|
|
GEN_ERROR("Select condition must be of boolean type!");
|
|
if ($5->getType() != $7->getType())
|
|
GEN_ERROR("Select operand types must match!");
|
|
$$ = ConstantExpr::getSelect($3, $5, $7);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ArithmeticOps '(' ConstVal ',' ConstVal ')' {
|
|
if ($3->getType() != $5->getType())
|
|
GEN_ERROR("Binary operator types must match!");
|
|
// First, make sure we're dealing with the right opcode by upgrading from
|
|
// obsolete versions.
|
|
sanitizeOpCode($1,$3->getType());
|
|
CHECK_FOR_ERROR;
|
|
|
|
// HACK: llvm 1.3 and earlier used to emit invalid pointer constant exprs.
|
|
// To retain backward compatibility with these early compilers, we emit a
|
|
// cast to the appropriate integer type automatically if we are in the
|
|
// broken case. See PR424 for more information.
|
|
if (!isa<PointerType>($3->getType())) {
|
|
$$ = ConstantExpr::get($1.opcode, $3, $5);
|
|
} else {
|
|
const Type *IntPtrTy = 0;
|
|
switch (CurModule.CurrentModule->getPointerSize()) {
|
|
case Module::Pointer32: IntPtrTy = Type::IntTy; break;
|
|
case Module::Pointer64: IntPtrTy = Type::LongTy; break;
|
|
default: GEN_ERROR("invalid pointer binary constant expr!");
|
|
}
|
|
$$ = ConstantExpr::get($1.opcode, ConstantExpr::getCast($3, IntPtrTy),
|
|
ConstantExpr::getCast($5, IntPtrTy));
|
|
$$ = ConstantExpr::getCast($$, $3->getType());
|
|
}
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| LogicalOps '(' ConstVal ',' ConstVal ')' {
|
|
if ($3->getType() != $5->getType())
|
|
GEN_ERROR("Logical operator types must match!");
|
|
if (!$3->getType()->isIntegral()) {
|
|
if (!isa<PackedType>($3->getType()) ||
|
|
!cast<PackedType>($3->getType())->getElementType()->isIntegral())
|
|
GEN_ERROR("Logical operator requires integral operands!");
|
|
}
|
|
$$ = ConstantExpr::get($1.opcode, $3, $5);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| SetCondOps '(' ConstVal ',' ConstVal ')' {
|
|
if ($3->getType() != $5->getType())
|
|
GEN_ERROR("setcc operand types must match!");
|
|
$$ = ConstantExpr::get($1.opcode, $3, $5);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ShiftOps '(' ConstVal ',' ConstVal ')' {
|
|
if ($5->getType() != Type::UByteTy)
|
|
GEN_ERROR("Shift count for shift constant must be unsigned byte!");
|
|
if (!$3->getType()->isInteger())
|
|
GEN_ERROR("Shift constant expression requires integer operand!");
|
|
$$ = ConstantExpr::get($1.opcode, $3, $5);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| EXTRACTELEMENT '(' ConstVal ',' ConstVal ')' {
|
|
if (!ExtractElementInst::isValidOperands($3, $5))
|
|
GEN_ERROR("Invalid extractelement operands!");
|
|
$$ = ConstantExpr::getExtractElement($3, $5);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| INSERTELEMENT '(' ConstVal ',' ConstVal ',' ConstVal ')' {
|
|
if (!InsertElementInst::isValidOperands($3, $5, $7))
|
|
GEN_ERROR("Invalid insertelement operands!");
|
|
$$ = ConstantExpr::getInsertElement($3, $5, $7);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| SHUFFLEVECTOR '(' ConstVal ',' ConstVal ',' ConstVal ')' {
|
|
if (!ShuffleVectorInst::isValidOperands($3, $5, $7))
|
|
GEN_ERROR("Invalid shufflevector operands!");
|
|
$$ = ConstantExpr::getShuffleVector($3, $5, $7);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
// ConstVector - A list of comma separated constants.
|
|
ConstVector : ConstVector ',' ConstVal {
|
|
($$ = $1)->push_back($3);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstVal {
|
|
$$ = new std::vector<Constant*>();
|
|
$$->push_back($1);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
// GlobalType - Match either GLOBAL or CONSTANT for global declarations...
|
|
GlobalType : GLOBAL { $$ = false; } | CONSTANT { $$ = true; };
|
|
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Rules to match Modules
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Module rule: Capture the result of parsing the whole file into a result
|
|
// variable...
|
|
//
|
|
Module : FunctionList {
|
|
$$ = ParserResult = $1;
|
|
CurModule.ModuleDone();
|
|
CHECK_FOR_ERROR;
|
|
};
|
|
|
|
// FunctionList - A list of functions, preceeded by a constant pool.
|
|
//
|
|
FunctionList : FunctionList Function {
|
|
$$ = $1;
|
|
CurFun.FunctionDone();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| FunctionList FunctionProto {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| FunctionList MODULE ASM_TOK AsmBlock {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| FunctionList IMPLEMENTATION {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool {
|
|
$$ = CurModule.CurrentModule;
|
|
// Emit an error if there are any unresolved types left.
|
|
if (!CurModule.LateResolveTypes.empty()) {
|
|
const ValID &DID = CurModule.LateResolveTypes.begin()->first;
|
|
if (DID.Type == ValID::NameVal) {
|
|
GEN_ERROR("Reference to an undefined type: '"+DID.getName() + "'");
|
|
} else {
|
|
GEN_ERROR("Reference to an undefined type: #" + itostr(DID.Num));
|
|
}
|
|
}
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// ConstPool - Constants with optional names assigned to them.
|
|
ConstPool : ConstPool OptAssign TYPE TypesV {
|
|
// Eagerly resolve types. This is not an optimization, this is a
|
|
// requirement that is due to the fact that we could have this:
|
|
//
|
|
// %list = type { %list * }
|
|
// %list = type { %list * } ; repeated type decl
|
|
//
|
|
// If types are not resolved eagerly, then the two types will not be
|
|
// determined to be the same type!
|
|
//
|
|
ResolveTypeTo($2, *$4);
|
|
|
|
if (!setTypeName(*$4, $2) && !$2) {
|
|
CHECK_FOR_ERROR
|
|
// If this is a named type that is not a redefinition, add it to the slot
|
|
// table.
|
|
CurModule.Types.push_back(*$4);
|
|
}
|
|
|
|
delete $4;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool FunctionProto { // Function prototypes can be in const pool
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool MODULE ASM_TOK AsmBlock { // Asm blocks can be in the const pool
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool OptAssign OptLinkage GlobalType ConstVal {
|
|
if ($5 == 0)
|
|
GEN_ERROR("Global value initializer is not a constant!");
|
|
CurGV = ParseGlobalVariable($2, $3, $4, $5->getType(), $5);
|
|
CHECK_FOR_ERROR
|
|
} GlobalVarAttributes {
|
|
CurGV = 0;
|
|
}
|
|
| ConstPool OptAssign EXTERNAL GlobalType Types {
|
|
CurGV = ParseGlobalVariable($2, GlobalValue::ExternalLinkage, $4, *$5, 0);
|
|
CHECK_FOR_ERROR
|
|
delete $5;
|
|
} GlobalVarAttributes {
|
|
CurGV = 0;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool OptAssign DLLIMPORT GlobalType Types {
|
|
CurGV = ParseGlobalVariable($2, GlobalValue::DLLImportLinkage, $4, *$5, 0);
|
|
CHECK_FOR_ERROR
|
|
delete $5;
|
|
} GlobalVarAttributes {
|
|
CurGV = 0;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool OptAssign EXTERN_WEAK GlobalType Types {
|
|
CurGV =
|
|
ParseGlobalVariable($2, GlobalValue::ExternalWeakLinkage, $4, *$5, 0);
|
|
CHECK_FOR_ERROR
|
|
delete $5;
|
|
} GlobalVarAttributes {
|
|
CurGV = 0;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool TARGET TargetDefinition {
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstPool DEPLIBS '=' LibrariesDefinition {
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| /* empty: end of list */ {
|
|
};
|
|
|
|
|
|
AsmBlock : STRINGCONSTANT {
|
|
const std::string &AsmSoFar = CurModule.CurrentModule->getModuleInlineAsm();
|
|
char *EndStr = UnEscapeLexed($1, true);
|
|
std::string NewAsm($1, EndStr);
|
|
free($1);
|
|
|
|
if (AsmSoFar.empty())
|
|
CurModule.CurrentModule->setModuleInlineAsm(NewAsm);
|
|
else
|
|
CurModule.CurrentModule->setModuleInlineAsm(AsmSoFar+"\n"+NewAsm);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
BigOrLittle : BIG { $$ = Module::BigEndian; };
|
|
BigOrLittle : LITTLE { $$ = Module::LittleEndian; };
|
|
|
|
TargetDefinition : ENDIAN '=' BigOrLittle {
|
|
CurModule.CurrentModule->setEndianness($3);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| POINTERSIZE '=' EUINT64VAL {
|
|
if ($3 == 32)
|
|
CurModule.CurrentModule->setPointerSize(Module::Pointer32);
|
|
else if ($3 == 64)
|
|
CurModule.CurrentModule->setPointerSize(Module::Pointer64);
|
|
else
|
|
GEN_ERROR("Invalid pointer size: '" + utostr($3) + "'!");
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| TRIPLE '=' STRINGCONSTANT {
|
|
CurModule.CurrentModule->setTargetTriple($3);
|
|
free($3);
|
|
}
|
|
| DATALAYOUT '=' STRINGCONSTANT {
|
|
CurModule.CurrentModule->setDataLayout($3);
|
|
free($3);
|
|
};
|
|
|
|
LibrariesDefinition : '[' LibList ']';
|
|
|
|
LibList : LibList ',' STRINGCONSTANT {
|
|
CurModule.CurrentModule->addLibrary($3);
|
|
free($3);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| STRINGCONSTANT {
|
|
CurModule.CurrentModule->addLibrary($1);
|
|
free($1);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| /* empty: end of list */ {
|
|
CHECK_FOR_ERROR
|
|
}
|
|
;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Rules to match Function Headers
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Name : VAR_ID | STRINGCONSTANT;
|
|
OptName : Name | /*empty*/ { $$ = 0; };
|
|
|
|
ArgVal : Types OptName {
|
|
if (*$1 == Type::VoidTy)
|
|
GEN_ERROR("void typed arguments are invalid!");
|
|
$$ = new std::pair<PATypeHolder*, char*>($1, $2);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
ArgListH : ArgListH ',' ArgVal {
|
|
$$ = $1;
|
|
$1->push_back(*$3);
|
|
delete $3;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ArgVal {
|
|
$$ = new std::vector<std::pair<PATypeHolder*,char*> >();
|
|
$$->push_back(*$1);
|
|
delete $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
ArgList : ArgListH {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ArgListH ',' DOTDOTDOT {
|
|
$$ = $1;
|
|
$$->push_back(std::pair<PATypeHolder*,
|
|
char*>(new PATypeHolder(Type::VoidTy), 0));
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| DOTDOTDOT {
|
|
$$ = new std::vector<std::pair<PATypeHolder*,char*> >();
|
|
$$->push_back(std::make_pair(new PATypeHolder(Type::VoidTy), (char*)0));
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| /* empty */ {
|
|
$$ = 0;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
FunctionHeaderH : OptCallingConv TypesV Name '(' ArgList ')'
|
|
OptSection OptAlign {
|
|
UnEscapeLexed($3);
|
|
std::string FunctionName($3);
|
|
free($3); // Free strdup'd memory!
|
|
|
|
if (!(*$2)->isFirstClassType() && *$2 != Type::VoidTy)
|
|
GEN_ERROR("LLVM functions cannot return aggregate types!");
|
|
|
|
std::vector<const Type*> ParamTypeList;
|
|
if ($5) { // If there are arguments...
|
|
for (std::vector<std::pair<PATypeHolder*,char*> >::iterator I = $5->begin();
|
|
I != $5->end(); ++I)
|
|
ParamTypeList.push_back(I->first->get());
|
|
}
|
|
|
|
bool isVarArg = ParamTypeList.size() && ParamTypeList.back() == Type::VoidTy;
|
|
if (isVarArg) ParamTypeList.pop_back();
|
|
|
|
const FunctionType *FT = FunctionType::get(*$2, ParamTypeList, isVarArg);
|
|
const PointerType *PFT = PointerType::get(FT);
|
|
delete $2;
|
|
|
|
ValID ID;
|
|
if (!FunctionName.empty()) {
|
|
ID = ValID::create((char*)FunctionName.c_str());
|
|
} else {
|
|
ID = ValID::create((int)CurModule.Values[PFT].size());
|
|
}
|
|
|
|
Function *Fn = 0;
|
|
// See if this function was forward referenced. If so, recycle the object.
|
|
if (GlobalValue *FWRef = CurModule.GetForwardRefForGlobal(PFT, ID)) {
|
|
// Move the function to the end of the list, from whereever it was
|
|
// previously inserted.
|
|
Fn = cast<Function>(FWRef);
|
|
CurModule.CurrentModule->getFunctionList().remove(Fn);
|
|
CurModule.CurrentModule->getFunctionList().push_back(Fn);
|
|
} else if (!FunctionName.empty() && // Merge with an earlier prototype?
|
|
(Fn = CurModule.CurrentModule->getFunction(FunctionName, FT))) {
|
|
// If this is the case, either we need to be a forward decl, or it needs
|
|
// to be.
|
|
if (!CurFun.isDeclare && !Fn->isExternal())
|
|
GEN_ERROR("Redefinition of function '" + FunctionName + "'!");
|
|
|
|
// Make sure to strip off any argument names so we can't get conflicts.
|
|
if (Fn->isExternal())
|
|
for (Function::arg_iterator AI = Fn->arg_begin(), AE = Fn->arg_end();
|
|
AI != AE; ++AI)
|
|
AI->setName("");
|
|
} else { // Not already defined?
|
|
Fn = new Function(FT, GlobalValue::ExternalLinkage, FunctionName,
|
|
CurModule.CurrentModule);
|
|
|
|
InsertValue(Fn, CurModule.Values);
|
|
}
|
|
|
|
CurFun.FunctionStart(Fn);
|
|
|
|
if (CurFun.isDeclare) {
|
|
// If we have declaration, always overwrite linkage. This will allow us to
|
|
// correctly handle cases, when pointer to function is passed as argument to
|
|
// another function.
|
|
Fn->setLinkage(CurFun.Linkage);
|
|
}
|
|
Fn->setCallingConv($1);
|
|
Fn->setAlignment($8);
|
|
if ($7) {
|
|
Fn->setSection($7);
|
|
free($7);
|
|
}
|
|
|
|
// Add all of the arguments we parsed to the function...
|
|
if ($5) { // Is null if empty...
|
|
if (isVarArg) { // Nuke the last entry
|
|
assert($5->back().first->get() == Type::VoidTy && $5->back().second == 0&&
|
|
"Not a varargs marker!");
|
|
delete $5->back().first;
|
|
$5->pop_back(); // Delete the last entry
|
|
}
|
|
Function::arg_iterator ArgIt = Fn->arg_begin();
|
|
for (std::vector<std::pair<PATypeHolder*,char*> >::iterator I = $5->begin();
|
|
I != $5->end(); ++I, ++ArgIt) {
|
|
delete I->first; // Delete the typeholder...
|
|
|
|
setValueName(ArgIt, I->second); // Insert arg into symtab...
|
|
CHECK_FOR_ERROR
|
|
InsertValue(ArgIt);
|
|
}
|
|
|
|
delete $5; // We're now done with the argument list
|
|
}
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
BEGIN : BEGINTOK | '{'; // Allow BEGIN or '{' to start a function
|
|
|
|
FunctionHeader : OptLinkage FunctionHeaderH BEGIN {
|
|
$$ = CurFun.CurrentFunction;
|
|
|
|
// Make sure that we keep track of the linkage type even if there was a
|
|
// previous "declare".
|
|
$$->setLinkage($1);
|
|
};
|
|
|
|
END : ENDTOK | '}'; // Allow end of '}' to end a function
|
|
|
|
Function : BasicBlockList END {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
FnDeclareLinkage: /*default*/ |
|
|
DLLIMPORT { CurFun.Linkage = GlobalValue::DLLImportLinkage } |
|
|
EXTERN_WEAK { CurFun.Linkage = GlobalValue::DLLImportLinkage };
|
|
|
|
FunctionProto : DECLARE { CurFun.isDeclare = true; } FnDeclareLinkage FunctionHeaderH {
|
|
$$ = CurFun.CurrentFunction;
|
|
CurFun.FunctionDone();
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Rules to match Basic Blocks
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
OptSideEffect : /* empty */ {
|
|
$$ = false;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| SIDEEFFECT {
|
|
$$ = true;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
ConstValueRef : ESINT64VAL { // A reference to a direct constant
|
|
$$ = ValID::create($1);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| EUINT64VAL {
|
|
$$ = ValID::create($1);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| FPVAL { // Perhaps it's an FP constant?
|
|
$$ = ValID::create($1);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| TRUETOK {
|
|
$$ = ValID::create(ConstantBool::getTrue());
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| FALSETOK {
|
|
$$ = ValID::create(ConstantBool::getFalse());
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| NULL_TOK {
|
|
$$ = ValID::createNull();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| UNDEF {
|
|
$$ = ValID::createUndef();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ZEROINITIALIZER { // A vector zero constant.
|
|
$$ = ValID::createZeroInit();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| '<' ConstVector '>' { // Nonempty unsized packed vector
|
|
const Type *ETy = (*$2)[0]->getType();
|
|
int NumElements = $2->size();
|
|
|
|
PackedType* pt = PackedType::get(ETy, NumElements);
|
|
PATypeHolder* PTy = new PATypeHolder(
|
|
HandleUpRefs(
|
|
PackedType::get(
|
|
ETy,
|
|
NumElements)
|
|
)
|
|
);
|
|
|
|
// Verify all elements are correct type!
|
|
for (unsigned i = 0; i < $2->size(); i++) {
|
|
if (ETy != (*$2)[i]->getType())
|
|
GEN_ERROR("Element #" + utostr(i) + " is not of type '" +
|
|
ETy->getDescription() +"' as required!\nIt is of type '" +
|
|
(*$2)[i]->getType()->getDescription() + "'.");
|
|
}
|
|
|
|
$$ = ValID::create(ConstantPacked::get(pt, *$2));
|
|
delete PTy; delete $2;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ConstExpr {
|
|
$$ = ValID::create($1);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ASM_TOK OptSideEffect STRINGCONSTANT ',' STRINGCONSTANT {
|
|
char *End = UnEscapeLexed($3, true);
|
|
std::string AsmStr = std::string($3, End);
|
|
End = UnEscapeLexed($5, true);
|
|
std::string Constraints = std::string($5, End);
|
|
$$ = ValID::createInlineAsm(AsmStr, Constraints, $2);
|
|
free($3);
|
|
free($5);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// SymbolicValueRef - Reference to one of two ways of symbolically refering to
|
|
// another value.
|
|
//
|
|
SymbolicValueRef : INTVAL { // Is it an integer reference...?
|
|
$$ = ValID::create($1);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| Name { // Is it a named reference...?
|
|
$$ = ValID::create($1);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// ValueRef - A reference to a definition... either constant or symbolic
|
|
ValueRef : SymbolicValueRef | ConstValueRef;
|
|
|
|
|
|
// ResolvedVal - a <type> <value> pair. This is used only in cases where the
|
|
// type immediately preceeds the value reference, and allows complex constant
|
|
// pool references (for things like: 'ret [2 x int] [ int 12, int 42]')
|
|
ResolvedVal : Types ValueRef {
|
|
$$ = getVal(*$1, $2); delete $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
BasicBlockList : BasicBlockList BasicBlock {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| FunctionHeader BasicBlock { // Do not allow functions with 0 basic blocks
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
// Basic blocks are terminated by branching instructions:
|
|
// br, br/cc, switch, ret
|
|
//
|
|
BasicBlock : InstructionList OptAssign BBTerminatorInst {
|
|
setValueName($3, $2);
|
|
CHECK_FOR_ERROR
|
|
InsertValue($3);
|
|
|
|
$1->getInstList().push_back($3);
|
|
InsertValue($1);
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
InstructionList : InstructionList Inst {
|
|
$1->getInstList().push_back($2);
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| /* empty */ {
|
|
$$ = CurBB = getBBVal(ValID::create((int)CurFun.NextBBNum++), true);
|
|
CHECK_FOR_ERROR
|
|
|
|
// Make sure to move the basic block to the correct location in the
|
|
// function, instead of leaving it inserted wherever it was first
|
|
// referenced.
|
|
Function::BasicBlockListType &BBL =
|
|
CurFun.CurrentFunction->getBasicBlockList();
|
|
BBL.splice(BBL.end(), BBL, $$);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| LABELSTR {
|
|
$$ = CurBB = getBBVal(ValID::create($1), true);
|
|
CHECK_FOR_ERROR
|
|
|
|
// Make sure to move the basic block to the correct location in the
|
|
// function, instead of leaving it inserted wherever it was first
|
|
// referenced.
|
|
Function::BasicBlockListType &BBL =
|
|
CurFun.CurrentFunction->getBasicBlockList();
|
|
BBL.splice(BBL.end(), BBL, $$);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
BBTerminatorInst : RET ResolvedVal { // Return with a result...
|
|
$$ = new ReturnInst($2);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| RET VOID { // Return with no result...
|
|
$$ = new ReturnInst();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| BR LABEL ValueRef { // Unconditional Branch...
|
|
BasicBlock* tmpBB = getBBVal($3);
|
|
CHECK_FOR_ERROR
|
|
$$ = new BranchInst(tmpBB);
|
|
} // Conditional Branch...
|
|
| BR BOOL ValueRef ',' LABEL ValueRef ',' LABEL ValueRef {
|
|
BasicBlock* tmpBBA = getBBVal($6);
|
|
CHECK_FOR_ERROR
|
|
BasicBlock* tmpBBB = getBBVal($9);
|
|
CHECK_FOR_ERROR
|
|
Value* tmpVal = getVal(Type::BoolTy, $3);
|
|
CHECK_FOR_ERROR
|
|
$$ = new BranchInst(tmpBBA, tmpBBB, tmpVal);
|
|
}
|
|
| SWITCH IntType ValueRef ',' LABEL ValueRef '[' JumpTable ']' {
|
|
Value* tmpVal = getVal($2, $3);
|
|
CHECK_FOR_ERROR
|
|
BasicBlock* tmpBB = getBBVal($6);
|
|
CHECK_FOR_ERROR
|
|
SwitchInst *S = new SwitchInst(tmpVal, tmpBB, $8->size());
|
|
$$ = S;
|
|
|
|
std::vector<std::pair<Constant*,BasicBlock*> >::iterator I = $8->begin(),
|
|
E = $8->end();
|
|
for (; I != E; ++I) {
|
|
if (ConstantInt *CI = dyn_cast<ConstantInt>(I->first))
|
|
S->addCase(CI, I->second);
|
|
else
|
|
GEN_ERROR("Switch case is constant, but not a simple integer!");
|
|
}
|
|
delete $8;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| SWITCH IntType ValueRef ',' LABEL ValueRef '[' ']' {
|
|
Value* tmpVal = getVal($2, $3);
|
|
CHECK_FOR_ERROR
|
|
BasicBlock* tmpBB = getBBVal($6);
|
|
CHECK_FOR_ERROR
|
|
SwitchInst *S = new SwitchInst(tmpVal, tmpBB, 0);
|
|
$$ = S;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| INVOKE OptCallingConv TypesV ValueRef '(' ValueRefListE ')'
|
|
TO LABEL ValueRef UNWIND LABEL ValueRef {
|
|
const PointerType *PFTy;
|
|
const FunctionType *Ty;
|
|
|
|
if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
|
|
!(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
|
|
// Pull out the types of all of the arguments...
|
|
std::vector<const Type*> ParamTypes;
|
|
if ($6) {
|
|
for (std::vector<Value*>::iterator I = $6->begin(), E = $6->end();
|
|
I != E; ++I)
|
|
ParamTypes.push_back((*I)->getType());
|
|
}
|
|
|
|
bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
|
|
if (isVarArg) ParamTypes.pop_back();
|
|
|
|
Ty = FunctionType::get($3->get(), ParamTypes, isVarArg);
|
|
PFTy = PointerType::get(Ty);
|
|
}
|
|
|
|
Value *V = getVal(PFTy, $4); // Get the function we're calling...
|
|
CHECK_FOR_ERROR
|
|
BasicBlock *Normal = getBBVal($10);
|
|
CHECK_FOR_ERROR
|
|
BasicBlock *Except = getBBVal($13);
|
|
CHECK_FOR_ERROR
|
|
|
|
// Create the call node...
|
|
if (!$6) { // Has no arguments?
|
|
$$ = new InvokeInst(V, Normal, Except, std::vector<Value*>());
|
|
} else { // Has arguments?
|
|
// Loop through FunctionType's arguments and ensure they are specified
|
|
// correctly!
|
|
//
|
|
FunctionType::param_iterator I = Ty->param_begin();
|
|
FunctionType::param_iterator E = Ty->param_end();
|
|
std::vector<Value*>::iterator ArgI = $6->begin(), ArgE = $6->end();
|
|
|
|
for (; ArgI != ArgE && I != E; ++ArgI, ++I)
|
|
if ((*ArgI)->getType() != *I)
|
|
GEN_ERROR("Parameter " +(*ArgI)->getName()+ " is not of type '" +
|
|
(*I)->getDescription() + "'!");
|
|
|
|
if (I != E || (ArgI != ArgE && !Ty->isVarArg()))
|
|
GEN_ERROR("Invalid number of parameters detected!");
|
|
|
|
$$ = new InvokeInst(V, Normal, Except, *$6);
|
|
}
|
|
cast<InvokeInst>($$)->setCallingConv($2);
|
|
|
|
delete $3;
|
|
delete $6;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| UNWIND {
|
|
$$ = new UnwindInst();
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| UNREACHABLE {
|
|
$$ = new UnreachableInst();
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
|
|
JumpTable : JumpTable IntType ConstValueRef ',' LABEL ValueRef {
|
|
$$ = $1;
|
|
Constant *V = cast<Constant>(getValNonImprovising($2, $3));
|
|
CHECK_FOR_ERROR
|
|
if (V == 0)
|
|
GEN_ERROR("May only switch on a constant pool value!");
|
|
|
|
BasicBlock* tmpBB = getBBVal($6);
|
|
CHECK_FOR_ERROR
|
|
$$->push_back(std::make_pair(V, tmpBB));
|
|
}
|
|
| IntType ConstValueRef ',' LABEL ValueRef {
|
|
$$ = new std::vector<std::pair<Constant*, BasicBlock*> >();
|
|
Constant *V = cast<Constant>(getValNonImprovising($1, $2));
|
|
CHECK_FOR_ERROR
|
|
|
|
if (V == 0)
|
|
GEN_ERROR("May only switch on a constant pool value!");
|
|
|
|
BasicBlock* tmpBB = getBBVal($5);
|
|
CHECK_FOR_ERROR
|
|
$$->push_back(std::make_pair(V, tmpBB));
|
|
};
|
|
|
|
Inst : OptAssign InstVal {
|
|
// Is this definition named?? if so, assign the name...
|
|
setValueName($2, $1);
|
|
CHECK_FOR_ERROR
|
|
InsertValue($2);
|
|
$$ = $2;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
PHIList : Types '[' ValueRef ',' ValueRef ']' { // Used for PHI nodes
|
|
$$ = new std::list<std::pair<Value*, BasicBlock*> >();
|
|
Value* tmpVal = getVal(*$1, $3);
|
|
CHECK_FOR_ERROR
|
|
BasicBlock* tmpBB = getBBVal($5);
|
|
CHECK_FOR_ERROR
|
|
$$->push_back(std::make_pair(tmpVal, tmpBB));
|
|
delete $1;
|
|
}
|
|
| PHIList ',' '[' ValueRef ',' ValueRef ']' {
|
|
$$ = $1;
|
|
Value* tmpVal = getVal($1->front().first->getType(), $4);
|
|
CHECK_FOR_ERROR
|
|
BasicBlock* tmpBB = getBBVal($6);
|
|
CHECK_FOR_ERROR
|
|
$1->push_back(std::make_pair(tmpVal, tmpBB));
|
|
};
|
|
|
|
|
|
ValueRefList : ResolvedVal { // Used for call statements, and memory insts...
|
|
$$ = new std::vector<Value*>();
|
|
$$->push_back($1);
|
|
}
|
|
| ValueRefList ',' ResolvedVal {
|
|
$$ = $1;
|
|
$1->push_back($3);
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
// ValueRefListE - Just like ValueRefList, except that it may also be empty!
|
|
ValueRefListE : ValueRefList | /*empty*/ { $$ = 0; };
|
|
|
|
OptTailCall : TAIL CALL {
|
|
$$ = true;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| CALL {
|
|
$$ = false;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
|
|
if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
|
|
!isa<PackedType>((*$2).get()))
|
|
GEN_ERROR(
|
|
"Arithmetic operator requires integer, FP, or packed operands!");
|
|
if (isa<PackedType>((*$2).get()) &&
|
|
($1.opcode == Instruction::URem ||
|
|
$1.opcode == Instruction::SRem ||
|
|
$1.opcode == Instruction::FRem))
|
|
GEN_ERROR("U/S/FRem not supported on packed types!");
|
|
// Upgrade the opcode from obsolete versions before we do anything with it.
|
|
sanitizeOpCode($1,*$2);
|
|
CHECK_FOR_ERROR;
|
|
Value* val1 = getVal(*$2, $3);
|
|
CHECK_FOR_ERROR
|
|
Value* val2 = getVal(*$2, $5);
|
|
CHECK_FOR_ERROR
|
|
$$ = BinaryOperator::create($1.opcode, val1, val2);
|
|
if ($$ == 0)
|
|
GEN_ERROR("binary operator returned null!");
|
|
delete $2;
|
|
}
|
|
| LogicalOps Types ValueRef ',' ValueRef {
|
|
if (!(*$2)->isIntegral()) {
|
|
if (!isa<PackedType>($2->get()) ||
|
|
!cast<PackedType>($2->get())->getElementType()->isIntegral())
|
|
GEN_ERROR("Logical operator requires integral operands!");
|
|
}
|
|
Value* tmpVal1 = getVal(*$2, $3);
|
|
CHECK_FOR_ERROR
|
|
Value* tmpVal2 = getVal(*$2, $5);
|
|
CHECK_FOR_ERROR
|
|
$$ = BinaryOperator::create($1.opcode, tmpVal1, tmpVal2);
|
|
if ($$ == 0)
|
|
GEN_ERROR("binary operator returned null!");
|
|
delete $2;
|
|
}
|
|
| SetCondOps Types ValueRef ',' ValueRef {
|
|
if(isa<PackedType>((*$2).get())) {
|
|
GEN_ERROR(
|
|
"PackedTypes currently not supported in setcc instructions!");
|
|
}
|
|
Value* tmpVal1 = getVal(*$2, $3);
|
|
CHECK_FOR_ERROR
|
|
Value* tmpVal2 = getVal(*$2, $5);
|
|
CHECK_FOR_ERROR
|
|
$$ = new SetCondInst($1.opcode, tmpVal1, tmpVal2);
|
|
if ($$ == 0)
|
|
GEN_ERROR("binary operator returned null!");
|
|
delete $2;
|
|
}
|
|
| NOT ResolvedVal {
|
|
std::cerr << "WARNING: Use of eliminated 'not' instruction:"
|
|
<< " Replacing with 'xor'.\n";
|
|
|
|
Value *Ones = ConstantIntegral::getAllOnesValue($2->getType());
|
|
if (Ones == 0)
|
|
GEN_ERROR("Expected integral type for not instruction!");
|
|
|
|
$$ = BinaryOperator::create(Instruction::Xor, $2, Ones);
|
|
if ($$ == 0)
|
|
GEN_ERROR("Could not create a xor instruction!");
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ShiftOps ResolvedVal ',' ResolvedVal {
|
|
if ($4->getType() != Type::UByteTy)
|
|
GEN_ERROR("Shift amount must be ubyte!");
|
|
if (!$2->getType()->isInteger())
|
|
GEN_ERROR("Shift constant expression requires integer operand!");
|
|
$$ = new ShiftInst($1.opcode, $2, $4);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| CAST ResolvedVal TO Types {
|
|
if (!$4->get()->isFirstClassType())
|
|
GEN_ERROR("cast instruction to a non-primitive type: '" +
|
|
$4->get()->getDescription() + "'!");
|
|
$$ = new CastInst($2, *$4);
|
|
delete $4;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| SELECT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
|
|
if ($2->getType() != Type::BoolTy)
|
|
GEN_ERROR("select condition must be boolean!");
|
|
if ($4->getType() != $6->getType())
|
|
GEN_ERROR("select value types should match!");
|
|
$$ = new SelectInst($2, $4, $6);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| VAARG ResolvedVal ',' Types {
|
|
NewVarArgs = true;
|
|
$$ = new VAArgInst($2, *$4);
|
|
delete $4;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| VAARG_old ResolvedVal ',' Types {
|
|
ObsoleteVarArgs = true;
|
|
const Type* ArgTy = $2->getType();
|
|
Function* NF = CurModule.CurrentModule->
|
|
getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0);
|
|
|
|
//b = vaarg a, t ->
|
|
//foo = alloca 1 of t
|
|
//bar = vacopy a
|
|
//store bar -> foo
|
|
//b = vaarg foo, t
|
|
AllocaInst* foo = new AllocaInst(ArgTy, 0, "vaarg.fix");
|
|
CurBB->getInstList().push_back(foo);
|
|
CallInst* bar = new CallInst(NF, $2);
|
|
CurBB->getInstList().push_back(bar);
|
|
CurBB->getInstList().push_back(new StoreInst(bar, foo));
|
|
$$ = new VAArgInst(foo, *$4);
|
|
delete $4;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| VANEXT_old ResolvedVal ',' Types {
|
|
ObsoleteVarArgs = true;
|
|
const Type* ArgTy = $2->getType();
|
|
Function* NF = CurModule.CurrentModule->
|
|
getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0);
|
|
|
|
//b = vanext a, t ->
|
|
//foo = alloca 1 of t
|
|
//bar = vacopy a
|
|
//store bar -> foo
|
|
//tmp = vaarg foo, t
|
|
//b = load foo
|
|
AllocaInst* foo = new AllocaInst(ArgTy, 0, "vanext.fix");
|
|
CurBB->getInstList().push_back(foo);
|
|
CallInst* bar = new CallInst(NF, $2);
|
|
CurBB->getInstList().push_back(bar);
|
|
CurBB->getInstList().push_back(new StoreInst(bar, foo));
|
|
Instruction* tmp = new VAArgInst(foo, *$4);
|
|
CurBB->getInstList().push_back(tmp);
|
|
$$ = new LoadInst(foo);
|
|
delete $4;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
|
|
if (!ExtractElementInst::isValidOperands($2, $4))
|
|
GEN_ERROR("Invalid extractelement operands!");
|
|
$$ = new ExtractElementInst($2, $4);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| INSERTELEMENT ResolvedVal ',' ResolvedVal ',' ResolvedVal {
|
|
if (!InsertElementInst::isValidOperands($2, $4, $6))
|
|
GEN_ERROR("Invalid insertelement operands!");
|
|
$$ = new InsertElementInst($2, $4, $6);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| SHUFFLEVECTOR ResolvedVal ',' ResolvedVal ',' ResolvedVal {
|
|
if (!ShuffleVectorInst::isValidOperands($2, $4, $6))
|
|
GEN_ERROR("Invalid shufflevector operands!");
|
|
$$ = new ShuffleVectorInst($2, $4, $6);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| PHI_TOK PHIList {
|
|
const Type *Ty = $2->front().first->getType();
|
|
if (!Ty->isFirstClassType())
|
|
GEN_ERROR("PHI node operands must be of first class type!");
|
|
$$ = new PHINode(Ty);
|
|
((PHINode*)$$)->reserveOperandSpace($2->size());
|
|
while ($2->begin() != $2->end()) {
|
|
if ($2->front().first->getType() != Ty)
|
|
GEN_ERROR("All elements of a PHI node must be of the same type!");
|
|
cast<PHINode>($$)->addIncoming($2->front().first, $2->front().second);
|
|
$2->pop_front();
|
|
}
|
|
delete $2; // Free the list...
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| OptTailCall OptCallingConv TypesV ValueRef '(' ValueRefListE ')' {
|
|
const PointerType *PFTy;
|
|
const FunctionType *Ty;
|
|
|
|
if (!(PFTy = dyn_cast<PointerType>($3->get())) ||
|
|
!(Ty = dyn_cast<FunctionType>(PFTy->getElementType()))) {
|
|
// Pull out the types of all of the arguments...
|
|
std::vector<const Type*> ParamTypes;
|
|
if ($6) {
|
|
for (std::vector<Value*>::iterator I = $6->begin(), E = $6->end();
|
|
I != E; ++I)
|
|
ParamTypes.push_back((*I)->getType());
|
|
}
|
|
|
|
bool isVarArg = ParamTypes.size() && ParamTypes.back() == Type::VoidTy;
|
|
if (isVarArg) ParamTypes.pop_back();
|
|
|
|
if (!(*$3)->isFirstClassType() && *$3 != Type::VoidTy)
|
|
GEN_ERROR("LLVM functions cannot return aggregate types!");
|
|
|
|
Ty = FunctionType::get($3->get(), ParamTypes, isVarArg);
|
|
PFTy = PointerType::get(Ty);
|
|
}
|
|
|
|
Value *V = getVal(PFTy, $4); // Get the function we're calling...
|
|
CHECK_FOR_ERROR
|
|
|
|
// Create the call node...
|
|
if (!$6) { // Has no arguments?
|
|
// Make sure no arguments is a good thing!
|
|
if (Ty->getNumParams() != 0)
|
|
GEN_ERROR("No arguments passed to a function that "
|
|
"expects arguments!");
|
|
|
|
$$ = new CallInst(V, std::vector<Value*>());
|
|
} else { // Has arguments?
|
|
// Loop through FunctionType's arguments and ensure they are specified
|
|
// correctly!
|
|
//
|
|
FunctionType::param_iterator I = Ty->param_begin();
|
|
FunctionType::param_iterator E = Ty->param_end();
|
|
std::vector<Value*>::iterator ArgI = $6->begin(), ArgE = $6->end();
|
|
|
|
for (; ArgI != ArgE && I != E; ++ArgI, ++I)
|
|
if ((*ArgI)->getType() != *I)
|
|
GEN_ERROR("Parameter " +(*ArgI)->getName()+ " is not of type '" +
|
|
(*I)->getDescription() + "'!");
|
|
|
|
if (I != E || (ArgI != ArgE && !Ty->isVarArg()))
|
|
GEN_ERROR("Invalid number of parameters detected!");
|
|
|
|
$$ = new CallInst(V, *$6);
|
|
}
|
|
cast<CallInst>($$)->setTailCall($1);
|
|
cast<CallInst>($$)->setCallingConv($2);
|
|
delete $3;
|
|
delete $6;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| MemoryInst {
|
|
$$ = $1;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
// IndexList - List of indices for GEP based instructions...
|
|
IndexList : ',' ValueRefList {
|
|
$$ = $2;
|
|
CHECK_FOR_ERROR
|
|
} | /* empty */ {
|
|
$$ = new std::vector<Value*>();
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
OptVolatile : VOLATILE {
|
|
$$ = true;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| /* empty */ {
|
|
$$ = false;
|
|
CHECK_FOR_ERROR
|
|
};
|
|
|
|
|
|
|
|
MemoryInst : MALLOC Types OptCAlign {
|
|
$$ = new MallocInst(*$2, 0, $3);
|
|
delete $2;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| MALLOC Types ',' UINT ValueRef OptCAlign {
|
|
Value* tmpVal = getVal($4, $5);
|
|
CHECK_FOR_ERROR
|
|
$$ = new MallocInst(*$2, tmpVal, $6);
|
|
delete $2;
|
|
}
|
|
| ALLOCA Types OptCAlign {
|
|
$$ = new AllocaInst(*$2, 0, $3);
|
|
delete $2;
|
|
CHECK_FOR_ERROR
|
|
}
|
|
| ALLOCA Types ',' UINT ValueRef OptCAlign {
|
|
Value* tmpVal = getVal($4, $5);
|
|
CHECK_FOR_ERROR
|
|
$$ = new AllocaInst(*$2, tmpVal, $6);
|
|
delete $2;
|
|
}
|
|
| FREE ResolvedVal {
|
|
if (!isa<PointerType>($2->getType()))
|
|
GEN_ERROR("Trying to free nonpointer type " +
|
|
$2->getType()->getDescription() + "!");
|
|
$$ = new FreeInst($2);
|
|
CHECK_FOR_ERROR
|
|
}
|
|
|
|
| OptVolatile LOAD Types ValueRef {
|
|
if (!isa<PointerType>($3->get()))
|
|
GEN_ERROR("Can't load from nonpointer type: " +
|
|
(*$3)->getDescription());
|
|
if (!cast<PointerType>($3->get())->getElementType()->isFirstClassType())
|
|
GEN_ERROR("Can't load from pointer of non-first-class type: " +
|
|
(*$3)->getDescription());
|
|
Value* tmpVal = getVal(*$3, $4);
|
|
CHECK_FOR_ERROR
|
|
$$ = new LoadInst(tmpVal, "", $1);
|
|
delete $3;
|
|
}
|
|
| OptVolatile STORE ResolvedVal ',' Types ValueRef {
|
|
const PointerType *PT = dyn_cast<PointerType>($5->get());
|
|
if (!PT)
|
|
GEN_ERROR("Can't store to a nonpointer type: " +
|
|
(*$5)->getDescription());
|
|
const Type *ElTy = PT->getElementType();
|
|
if (ElTy != $3->getType())
|
|
GEN_ERROR("Can't store '" + $3->getType()->getDescription() +
|
|
"' into space of type '" + ElTy->getDescription() + "'!");
|
|
|
|
Value* tmpVal = getVal(*$5, $6);
|
|
CHECK_FOR_ERROR
|
|
$$ = new StoreInst($3, tmpVal, $1);
|
|
delete $5;
|
|
}
|
|
| GETELEMENTPTR Types ValueRef IndexList {
|
|
if (!isa<PointerType>($2->get()))
|
|
GEN_ERROR("getelementptr insn requires pointer operand!");
|
|
|
|
// LLVM 1.2 and earlier used ubyte struct indices. Convert any ubyte struct
|
|
// indices to uint struct indices for compatibility.
|
|
generic_gep_type_iterator<std::vector<Value*>::iterator>
|
|
GTI = gep_type_begin($2->get(), $4->begin(), $4->end()),
|
|
GTE = gep_type_end($2->get(), $4->begin(), $4->end());
|
|
for (unsigned i = 0, e = $4->size(); i != e && GTI != GTE; ++i, ++GTI)
|
|
if (isa<StructType>(*GTI)) // Only change struct indices
|
|
if (ConstantInt *CUI = dyn_cast<ConstantInt>((*$4)[i]))
|
|
if (CUI->getType() == Type::UByteTy)
|
|
(*$4)[i] = ConstantExpr::getCast(CUI, Type::UIntTy);
|
|
|
|
if (!GetElementPtrInst::getIndexedType(*$2, *$4, true))
|
|
GEN_ERROR("Invalid getelementptr indices for type '" +
|
|
(*$2)->getDescription()+ "'!");
|
|
Value* tmpVal = getVal(*$2, $3);
|
|
CHECK_FOR_ERROR
|
|
$$ = new GetElementPtrInst(tmpVal, *$4);
|
|
delete $2;
|
|
delete $4;
|
|
};
|
|
|
|
|
|
%%
|
|
|
|
void llvm::GenerateError(const std::string &message, int LineNo) {
|
|
if (LineNo == -1) LineNo = llvmAsmlineno;
|
|
// TODO: column number in exception
|
|
if (TheParseError)
|
|
TheParseError->setError(CurFilename, message, LineNo);
|
|
TriggerError = 1;
|
|
}
|
|
|
|
int yyerror(const char *ErrorMsg) {
|
|
std::string where
|
|
= std::string((CurFilename == "-") ? std::string("<stdin>") : CurFilename)
|
|
+ ":" + utostr((unsigned) llvmAsmlineno) + ": ";
|
|
std::string errMsg = std::string(ErrorMsg) + "\n" + where + " while reading ";
|
|
if (yychar == YYEMPTY || yychar == 0)
|
|
errMsg += "end-of-file.";
|
|
else
|
|
errMsg += "token: '" + std::string(llvmAsmtext, llvmAsmleng) + "'";
|
|
GenerateError(errMsg);
|
|
return 0;
|
|
}
|