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Side by Side Diff: src/IceConverter.cpp

Issue 874353006: Write out global initializers and data rel directly to ELF file. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: tweak comment Created 5 years, 10 months ago
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1 //===- subzero/src/IceConverter.cpp - Converts LLVM to Ice ---------------===// 1 //===- subzero/src/IceConverter.cpp - Converts LLVM to Ice ---------------===//
2 // 2 //
3 // The Subzero Code Generator 3 // The Subzero Code Generator
4 // 4 //
5 // This file is distributed under the University of Illinois Open Source 5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details. 6 // License. See LICENSE.TXT for details.
7 // 7 //
8 //===----------------------------------------------------------------------===// 8 //===----------------------------------------------------------------------===//
9 // 9 //
10 // This file implements the LLVM to ICE converter. 10 // This file implements the LLVM to ICE converter.
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636 LLVM2ICEGlobalsConverter & 636 LLVM2ICEGlobalsConverter &
637 operator-(const LLVM2ICEGlobalsConverter &) = delete; 637 operator-(const LLVM2ICEGlobalsConverter &) = delete;
638 638
639 public: 639 public:
640 LLVM2ICEGlobalsConverter(Ice::Converter &Converter) 640 LLVM2ICEGlobalsConverter(Ice::Converter &Converter)
641 : LLVM2ICEConverter(Converter) {} 641 : LLVM2ICEConverter(Converter) {}
642 642
643 /// Converts global variables, and their initializers into ICE 643 /// Converts global variables, and their initializers into ICE
644 /// global variable declarations, for module Mod. Puts corresponding 644 /// global variable declarations, for module Mod. Puts corresponding
645 /// converted declarations into VariableDeclarations. 645 /// converted declarations into VariableDeclarations.
646 void convertGlobalsToIce( 646 void convertGlobalsToIce(Module *Mod,
647 Module *Mod, 647 Ice::VariableDeclarationList &VariableDeclarations);
648 Ice::Translator::VariableDeclarationListType &VariableDeclarations);
649 648
650 private: 649 private:
651 // Adds the Initializer to the list of initializers for the Global 650 // Adds the Initializer to the list of initializers for the Global
652 // variable declaraation. 651 // variable declaraation.
653 void addGlobalInitializer(Ice::VariableDeclaration &Global, 652 void addGlobalInitializer(Ice::VariableDeclaration &Global,
654 const Constant *Initializer) { 653 const Constant *Initializer) {
655 const bool HasOffset = false; 654 const bool HasOffset = false;
656 const Ice::RelocOffsetT Offset = 0; 655 const Ice::RelocOffsetT Offset = 0;
657 addGlobalInitializer(Global, Initializer, HasOffset, Offset); 656 addGlobalInitializer(Global, Initializer, HasOffset, Offset);
658 } 657 }
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674 673
675 std::string Buffer; 674 std::string Buffer;
676 raw_string_ostream StrBuf(Buffer); 675 raw_string_ostream StrBuf(Buffer);
677 StrBuf << "Constant not i32 literal: " << *C; 676 StrBuf << "Constant not i32 literal: " << *C;
678 report_fatal_error(StrBuf.str()); 677 report_fatal_error(StrBuf.str());
679 return 0; 678 return 0;
680 } 679 }
681 }; 680 };
682 681
683 void LLVM2ICEGlobalsConverter::convertGlobalsToIce( 682 void LLVM2ICEGlobalsConverter::convertGlobalsToIce(
684 Module *Mod, 683 Module *Mod, Ice::VariableDeclarationList &VariableDeclarations) {
685 Ice::Translator::VariableDeclarationListType &VariableDeclarations) {
686 for (Module::const_global_iterator I = Mod->global_begin(), 684 for (Module::const_global_iterator I = Mod->global_begin(),
687 E = Mod->global_end(); 685 E = Mod->global_end();
688 I != E; ++I) { 686 I != E; ++I) {
689 687
690 const GlobalVariable *GV = I; 688 const GlobalVariable *GV = I;
691 689
692 Ice::GlobalDeclaration *Var = getConverter().getGlobalDeclaration(GV); 690 Ice::GlobalDeclaration *Var = getConverter().getGlobalDeclaration(GV);
693 Ice::VariableDeclaration *VarDecl = cast<Ice::VariableDeclaration>(Var); 691 Ice::VariableDeclaration *VarDecl = cast<Ice::VariableDeclaration>(Var);
694 VariableDeclarations.push_back(VarDecl); 692 VariableDeclarations.push_back(VarDecl);
695 693
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861 Var->setName(GV->getName()); 859 Var->setName(GV->getName());
862 Var->setAlignment(GV->getAlignment()); 860 Var->setAlignment(GV->getAlignment());
863 Var->setIsConstant(GV->isConstant()); 861 Var->setIsConstant(GV->isConstant());
864 Var->setLinkage(GV->getLinkage()); 862 Var->setLinkage(GV->getLinkage());
865 GlobalDeclarationMap[GV] = Var; 863 GlobalDeclarationMap[GV] = Var;
866 } 864 }
867 } 865 }
868 866
869 void Converter::convertGlobals(Module *Mod) { 867 void Converter::convertGlobals(Module *Mod) {
870 LLVM2ICEGlobalsConverter GlobalsConverter(*this); 868 LLVM2ICEGlobalsConverter GlobalsConverter(*this);
871 Translator::VariableDeclarationListType VariableDeclarations; 869 VariableDeclarationList VariableDeclarations;
872 GlobalsConverter.convertGlobalsToIce(Mod, VariableDeclarations); 870 GlobalsConverter.convertGlobalsToIce(Mod, VariableDeclarations);
873 lowerGlobals(VariableDeclarations); 871 lowerGlobals(VariableDeclarations);
874 } 872 }
875 873
876 void Converter::convertFunctions() { 874 void Converter::convertFunctions() {
877 TimerStackIdT StackID = GlobalContext::TSK_Funcs; 875 TimerStackIdT StackID = GlobalContext::TSK_Funcs;
878 for (const Function &I : *Mod) { 876 for (const Function &I : *Mod) {
879 if (I.empty()) 877 if (I.empty())
880 continue; 878 continue;
881 879
882 TimerIdT TimerID = 0; 880 TimerIdT TimerID = 0;
883 if (ALLOW_DUMP && Ctx->getFlags().TimeEachFunction) { 881 if (ALLOW_DUMP && Ctx->getFlags().TimeEachFunction) {
884 TimerID = Ctx->getTimerID(StackID, I.getName()); 882 TimerID = Ctx->getTimerID(StackID, I.getName());
885 Ctx->pushTimer(TimerID, StackID); 883 Ctx->pushTimer(TimerID, StackID);
886 } 884 }
887 LLVM2ICEFunctionConverter FunctionConverter(*this); 885 LLVM2ICEFunctionConverter FunctionConverter(*this);
888 886
889 Cfg *Fcn = FunctionConverter.convertFunction(&I); 887 Cfg *Fcn = FunctionConverter.convertFunction(&I);
890 translateFcn(Fcn); 888 translateFcn(Fcn);
891 if (ALLOW_DUMP && Ctx->getFlags().TimeEachFunction) 889 if (ALLOW_DUMP && Ctx->getFlags().TimeEachFunction)
892 Ctx->popTimer(TimerID, StackID); 890 Ctx->popTimer(TimerID, StackID);
893 } 891 }
894 } 892 }
895 893
896 } // end of namespace Ice 894 } // end of namespace Ice
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