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-rw-r--r--lib/Target/CBackend/CBackend.cpp171
-rw-r--r--lib/Target/CBackend/Writer.cpp171
2 files changed, 96 insertions, 246 deletions
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 73f4341621..cd24e2765d 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -18,10 +18,12 @@
#include "llvm/Module.h"
#include "llvm/Instructions.h"
#include "llvm/Pass.h"
+#include "llvm/PassManager.h"
#include "llvm/SymbolTable.h"
#include "llvm/Intrinsics.h"
#include "llvm/Analysis/FindUsedTypes.h"
#include "llvm/Analysis/ConstantsScanner.h"
+#include "llvm/Transforms/Scalar.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/Support/InstVisitor.h"
@@ -40,34 +42,31 @@ namespace {
std::map<const Type *, std::string> TypeNames;
std::set<const Value*> MangledGlobals;
- bool needsMalloc, emittedInvoke;
+ bool needsMalloc;
std::map<const ConstantFP *, unsigned> FPConstantMap;
public:
CWriter(std::ostream &o) : Out(o) {}
void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
AU.addRequired<FindUsedTypes>();
}
- virtual bool run(Module &M) {
- // Initialize
- TheModule = &M;
- FUT = &getAnalysis<FindUsedTypes>();
+ virtual const char *getPassName() const { return "C backend"; }
- // Ensure that all structure types have names...
- bool Changed = nameAllUsedStructureTypes(M);
- Mang = new Mangler(M);
+ bool doInitialization(Module &M);
+ bool run(Module &M) {
+ doInitialization(M);
- // Run...
- printModule(&M);
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
+ if (!I->isExternal())
+ printFunction(*I);
// Free memory...
delete Mang;
TypeNames.clear();
MangledGlobals.clear();
- return false;
+ return true;
}
std::ostream &printType(std::ostream &Out, const Type *Ty,
@@ -85,7 +84,7 @@ namespace {
void printContainedStructs(const Type *Ty, std::set<const StructType *> &);
void printFunctionSignature(const Function *F, bool Prototype);
- void printFunction(Function *);
+ void printFunction(Function &);
void printConstant(Constant *CPV);
void printConstantArray(ConstantArray *CPA);
@@ -604,42 +603,27 @@ static void generateCompilerSpecificCode(std::ostream& Out) {
<< "#endif\n\n";
}
-// generateProcessorSpecificCode - This is where we add conditional compilation
-// directives to cater to specific processors as need be.
-//
-static void generateProcessorSpecificCode(std::ostream& Out) {
- // According to ANSI C, longjmp'ing to a setjmp could invalidate any
- // non-volatile variable in the scope of the setjmp. For now, we are not
- // doing analysis to determine which variables need to be marked volatile, so
- // we just mark them all.
- //
- // HOWEVER, many targets implement setjmp by saving and restoring the register
- // file, so they DON'T need variables to be marked volatile, and this is a
- // HUGE pessimization for them. For this reason, on known-good processors, we
- // do not emit volatile qualifiers.
- Out << "#if defined(__386__) || defined(__i386__) || \\\n"
- << " defined(i386) || defined(WIN32)\n"
- << "/* setjmp does not require variables to be marked volatile */"
- << "#define VOLATILE_FOR_SETJMP\n"
- << "#else\n"
- << "#define VOLATILE_FOR_SETJMP volatile\n"
- << "#endif\n\n";
-}
-
+bool CWriter::doInitialization(Module &M) {
+ // Initialize
+ TheModule = &M;
+ FUT = &getAnalysis<FindUsedTypes>();
+
+ // Ensure that all structure types have names...
+ bool Changed = nameAllUsedStructureTypes(M);
+ Mang = new Mangler(M);
-void CWriter::printModule(Module *M) {
// Calculate which global values have names that will collide when we throw
// away type information.
{ // Scope to delete the FoundNames set when we are done with it...
std::set<std::string> FoundNames;
- for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
if (I->hasName()) // If the global has a name...
if (FoundNames.count(I->getName())) // And the name is already used
MangledGlobals.insert(I); // Mangle the name
else
FoundNames.insert(I->getName()); // Otherwise, keep track of name
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
if (I->hasName()) // If the global has a name...
if (FoundNames.count(I->getName())) // And the name is already used
MangledGlobals.insert(I); // Mangle the name
@@ -652,7 +636,6 @@ void CWriter::printModule(Module *M) {
Out << "#include <stdarg.h>\n"; // Varargs support
Out << "#include <setjmp.h>\n"; // Unwind support
generateCompilerSpecificCode(Out);
- generateProcessorSpecificCode(Out);
// Provide a definition for `bool' if not compiling with a C++ compiler.
Out << "\n"
@@ -662,11 +645,6 @@ void CWriter::printModule(Module *M) {
<< "typedef unsigned long long ConstantDoubleTy;\n"
<< "typedef unsigned int ConstantFloatTy;\n"
- << "\n\n/* Support for the invoke instruction */\n"
- << "extern struct __llvm_jmpbuf_list_t {\n"
- << " jmp_buf buf; struct __llvm_jmpbuf_list_t *next;\n"
- << "} *__llvm_jmpbuf_list;\n"
-
<< "\n\n/* Global Declarations */\n";
// First output all the declarations for the program, because C requires
@@ -674,12 +652,12 @@ void CWriter::printModule(Module *M) {
//
// Loop over the symbol table, emitting all named constants...
- printSymbolTable(M->getSymbolTable());
+ printSymbolTable(M.getSymbolTable());
// Global variable declarations...
- if (!M->gempty()) {
+ if (!M.gempty()) {
Out << "\n/* External Global Variable Declarations */\n";
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I) {
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I) {
if (I->hasExternalLinkage()) {
Out << "extern ";
printType(Out, I->getType()->getElementType(), Mang->getValueName(I));
@@ -689,15 +667,16 @@ void CWriter::printModule(Module *M) {
}
// Function declarations
- if (!M->empty()) {
+ if (!M.empty()) {
Out << "\n/* Function Declarations */\n";
needsMalloc = true;
- for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I) {
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
// If the function is external and the name collides don't print it.
// Sometimes the bytecode likes to have multiple "declarations" for
// external functions
if ((I->hasInternalLinkage() || !MangledGlobals.count(I)) &&
- !I->getIntrinsicID()) {
+ !I->getIntrinsicID() &&
+ I->getName() != "setjmp" && I->getName() != "longjmp") {
printFunctionSignature(I, true);
if (I->hasWeakLinkage()) Out << " __ATTRIBUTE_WEAK__";
Out << ";\n";
@@ -712,9 +691,9 @@ void CWriter::printModule(Module *M) {
}
// Output the global variable declarations
- if (!M->gempty()) {
+ if (!M.gempty()) {
Out << "\n\n/* Global Variable Declarations */\n";
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
if (!I->isExternal()) {
Out << "extern ";
printType(Out, I->getType()->getElementType(), Mang->getValueName(I));
@@ -728,9 +707,9 @@ void CWriter::printModule(Module *M) {
}
// Output the global variable definitions and contents...
- if (!M->gempty()) {
+ if (!M.gempty()) {
Out << "\n\n/* Global Variable Definitions and Initialization */\n";
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
if (!I->isExternal()) {
if (I->hasInternalLinkage())
Out << "static ";
@@ -755,28 +734,14 @@ void CWriter::printModule(Module *M) {
}
// Output all floating point constants that cannot be printed accurately...
- printFloatingPointConstants(*M);
+ printFloatingPointConstants(M);
- // Output all of the functions...
- emittedInvoke = false;
- if (!M->empty()) {
+ if (!M.empty())
Out << "\n\n/* Function Bodies */\n";
- for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
- printFunction(I);
- }
-
- // If the program included an invoke instruction, we need to output the
- // support code for it here!
- if (emittedInvoke) {
- Out << "\n/* More support for the invoke instruction */\n"
- << "struct __llvm_jmpbuf_list_t *__llvm_jmpbuf_list "
- << "__attribute__((common)) = 0;\n";
- }
-
- // Done with global FP constants
- FPConstantMap.clear();
+ return false;
}
+
/// Output all floating point constants that cannot be printed accurately...
void CWriter::printFloatingPointConstants(Module &M) {
union {
@@ -963,36 +928,23 @@ void CWriter::printFunctionSignature(const Function *F, bool Prototype) {
printType(Out, F->getReturnType(), FunctionInnards.str());
}
-void CWriter::printFunction(Function *F) {
- if (F->isExternal()) return;
-
- printFunctionSignature(F, false);
+void CWriter::printFunction(Function &F) {
+ printFunctionSignature(&F, false);
Out << " {\n";
- // Determine whether or not the function contains any invoke instructions.
- bool HasInvoke = false;
- for (Function::iterator I = F->begin(), E = F->end(); I != E; ++I)
- if (isa<InvokeInst>(I->getTerminator())) {
- HasInvoke = true;
- break;
- }
-
// print local variable information for the function
- for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I)
+ for (inst_iterator I = inst_begin(&F), E = inst_end(&F); I != E; ++I)
if (const AllocaInst *AI = isDirectAlloca(*I)) {
Out << " ";
- if (HasInvoke) Out << "VOLATILE_FOR_SETJMP ";
printType(Out, AI->getAllocatedType(), Mang->getValueName(AI));
Out << "; /* Address exposed local */\n";
} else if ((*I)->getType() != Type::VoidTy && !isInlinableInst(**I)) {
Out << " ";
- if (HasInvoke) Out << "VOLATILE_FOR_SETJMP ";
printType(Out, (*I)->getType(), Mang->getValueName(*I));
Out << ";\n";
if (isa<PHINode>(*I)) { // Print out PHI node temporaries as well...
Out << " ";
- if (HasInvoke) Out << "VOLATILE_FOR_SETJMP ";
printType(Out, (*I)->getType(),
Mang->getValueName(*I)+"__PHI_TEMPORARY");
Out << ";\n";
@@ -1002,7 +954,7 @@ void CWriter::printFunction(Function *F) {
Out << "\n";
// print the basic blocks
- for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
+ for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
BasicBlock *Prev = BB->getPrev();
// Don't print the label for the basic block if there are no uses, or if the
@@ -1080,43 +1032,12 @@ void CWriter::visitSwitchInst(SwitchInst &SI) {
}
void CWriter::visitInvokeInst(InvokeInst &II) {
- Out << " {\n"
- << " struct __llvm_jmpbuf_list_t Entry;\n"
- << " Entry.next = __llvm_jmpbuf_list;\n"
- << " if (setjmp(Entry.buf)) {\n"
- << " __llvm_jmpbuf_list = Entry.next;\n";
- printBranchToBlock(II.getParent(), II.getUnwindDest(), 4);
- Out << " }\n"
- << " __llvm_jmpbuf_list = &Entry;\n"
- << " ";
-
- if (II.getType() != Type::VoidTy) outputLValue(&II);
- visitCallSite(&II);
- Out << ";\n"
- << " __llvm_jmpbuf_list = Entry.next;\n"
- << " }\n";
- printBranchToBlock(II.getParent(), II.getNormalDest(), 0);
- emittedInvoke = true;
+ assert(0 && "Lowerinvoke pass didn't work!");
}
void CWriter::visitUnwindInst(UnwindInst &I) {
- // The unwind instructions causes a control flow transfer out of the current
- // function, unwinding the stack until a caller who used the invoke
- // instruction is found. In this context, we code generated the invoke
- // instruction to add an entry to the top of the jmpbuf_list. Thus, here we
- // just have to longjmp to the specified handler.
- Out << " if (__llvm_jmpbuf_list == 0) { /* unwind */\n"
- << "#ifdef _LP64\n"
- << " extern signed long long write();\n"
- << "#else\n"
- << " extern write();\n"
- << "#endif\n"
- << " ((void (*)(int, void*, unsigned))write)(2,\n"
- << " \"throw found with no handler!\\n\", 31); abort();\n"
- << " }\n"
- << " longjmp(__llvm_jmpbuf_list->buf, 1);\n";
- emittedInvoke = true;
+ assert(0 && "Lowerinvoke pass didn't work!");
}
bool isGotoCodeNecessary(BasicBlock *From, BasicBlock *To) {
@@ -1473,4 +1394,8 @@ void CWriter::visitVAArgInst(VAArgInst &I) {
// External Interface declaration
//===----------------------------------------------------------------------===//
-Pass *llvm::createWriteToCPass(std::ostream &o) { return new CWriter(o); }
+void llvm::AddPassesToWriteC(PassManager &PM, std::ostream &o) {
+ PM.add(createLowerInvokePass());
+ //PM.add(createLowerAllocationsPass());
+ PM.add(new CWriter(o));
+}
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index 73f4341621..cd24e2765d 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -18,10 +18,12 @@
#include "llvm/Module.h"
#include "llvm/Instructions.h"
#include "llvm/Pass.h"
+#include "llvm/PassManager.h"
#include "llvm/SymbolTable.h"
#include "llvm/Intrinsics.h"
#include "llvm/Analysis/FindUsedTypes.h"
#include "llvm/Analysis/ConstantsScanner.h"
+#include "llvm/Transforms/Scalar.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/Support/InstVisitor.h"
@@ -40,34 +42,31 @@ namespace {
std::map<const Type *, std::string> TypeNames;
std::set<const Value*> MangledGlobals;
- bool needsMalloc, emittedInvoke;
+ bool needsMalloc;
std::map<const ConstantFP *, unsigned> FPConstantMap;
public:
CWriter(std::ostream &o) : Out(o) {}
void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
AU.addRequired<FindUsedTypes>();
}
- virtual bool run(Module &M) {
- // Initialize
- TheModule = &M;
- FUT = &getAnalysis<FindUsedTypes>();
+ virtual const char *getPassName() const { return "C backend"; }
- // Ensure that all structure types have names...
- bool Changed = nameAllUsedStructureTypes(M);
- Mang = new Mangler(M);
+ bool doInitialization(Module &M);
+ bool run(Module &M) {
+ doInitialization(M);
- // Run...
- printModule(&M);
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
+ if (!I->isExternal())
+ printFunction(*I);
// Free memory...
delete Mang;
TypeNames.clear();
MangledGlobals.clear();
- return false;
+ return true;
}
std::ostream &printType(std::ostream &Out, const Type *Ty,
@@ -85,7 +84,7 @@ namespace {
void printContainedStructs(const Type *Ty, std::set<const StructType *> &);
void printFunctionSignature(const Function *F, bool Prototype);
- void printFunction(Function *);
+ void printFunction(Function &);
void printConstant(Constant *CPV);
void printConstantArray(ConstantArray *CPA);
@@ -604,42 +603,27 @@ static void generateCompilerSpecificCode(std::ostream& Out) {
<< "#endif\n\n";
}
-// generateProcessorSpecificCode - This is where we add conditional compilation
-// directives to cater to specific processors as need be.
-//
-static void generateProcessorSpecificCode(std::ostream& Out) {
- // According to ANSI C, longjmp'ing to a setjmp could invalidate any
- // non-volatile variable in the scope of the setjmp. For now, we are not
- // doing analysis to determine which variables need to be marked volatile, so
- // we just mark them all.
- //
- // HOWEVER, many targets implement setjmp by saving and restoring the register
- // file, so they DON'T need variables to be marked volatile, and this is a
- // HUGE pessimization for them. For this reason, on known-good processors, we
- // do not emit volatile qualifiers.
- Out << "#if defined(__386__) || defined(__i386__) || \\\n"
- << " defined(i386) || defined(WIN32)\n"
- << "/* setjmp does not require variables to be marked volatile */"
- << "#define VOLATILE_FOR_SETJMP\n"
- << "#else\n"
- << "#define VOLATILE_FOR_SETJMP volatile\n"
- << "#endif\n\n";
-}
-
+bool CWriter::doInitialization(Module &M) {
+ // Initialize
+ TheModule = &M;
+ FUT = &getAnalysis<FindUsedTypes>();
+
+ // Ensure that all structure types have names...
+ bool Changed = nameAllUsedStructureTypes(M);
+ Mang = new Mangler(M);
-void CWriter::printModule(Module *M) {
// Calculate which global values have names that will collide when we throw
// away type information.
{ // Scope to delete the FoundNames set when we are done with it...
std::set<std::string> FoundNames;
- for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
if (I->hasName()) // If the global has a name...
if (FoundNames.count(I->getName())) // And the name is already used
MangledGlobals.insert(I); // Mangle the name
else
FoundNames.insert(I->getName()); // Otherwise, keep track of name
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
if (I->hasName()) // If the global has a name...
if (FoundNames.count(I->getName())) // And the name is already used
MangledGlobals.insert(I); // Mangle the name
@@ -652,7 +636,6 @@ void CWriter::printModule(Module *M) {
Out << "#include <stdarg.h>\n"; // Varargs support
Out << "#include <setjmp.h>\n"; // Unwind support
generateCompilerSpecificCode(Out);
- generateProcessorSpecificCode(Out);
// Provide a definition for `bool' if not compiling with a C++ compiler.
Out << "\n"
@@ -662,11 +645,6 @@ void CWriter::printModule(Module *M) {
<< "typedef unsigned long long ConstantDoubleTy;\n"
<< "typedef unsigned int ConstantFloatTy;\n"
- << "\n\n/* Support for the invoke instruction */\n"
- << "extern struct __llvm_jmpbuf_list_t {\n"
- << " jmp_buf buf; struct __llvm_jmpbuf_list_t *next;\n"
- << "} *__llvm_jmpbuf_list;\n"
-
<< "\n\n/* Global Declarations */\n";
// First output all the declarations for the program, because C requires
@@ -674,12 +652,12 @@ void CWriter::printModule(Module *M) {
//
// Loop over the symbol table, emitting all named constants...
- printSymbolTable(M->getSymbolTable());
+ printSymbolTable(M.getSymbolTable());
// Global variable declarations...
- if (!M->gempty()) {
+ if (!M.gempty()) {
Out << "\n/* External Global Variable Declarations */\n";
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I) {
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I) {
if (I->hasExternalLinkage()) {
Out << "extern ";
printType(Out, I->getType()->getElementType(), Mang->getValueName(I));
@@ -689,15 +667,16 @@ void CWriter::printModule(Module *M) {
}
// Function declarations
- if (!M->empty()) {
+ if (!M.empty()) {
Out << "\n/* Function Declarations */\n";
needsMalloc = true;
- for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I) {
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) {
// If the function is external and the name collides don't print it.
// Sometimes the bytecode likes to have multiple "declarations" for
// external functions
if ((I->hasInternalLinkage() || !MangledGlobals.count(I)) &&
- !I->getIntrinsicID()) {
+ !I->getIntrinsicID() &&
+ I->getName() != "setjmp" && I->getName() != "longjmp") {
printFunctionSignature(I, true);
if (I->hasWeakLinkage()) Out << " __ATTRIBUTE_WEAK__";
Out << ";\n";
@@ -712,9 +691,9 @@ void CWriter::printModule(Module *M) {
}
// Output the global variable declarations
- if (!M->gempty()) {
+ if (!M.gempty()) {
Out << "\n\n/* Global Variable Declarations */\n";
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
if (!I->isExternal()) {
Out << "extern ";
printType(Out, I->getType()->getElementType(), Mang->getValueName(I));
@@ -728,9 +707,9 @@ void CWriter::printModule(Module *M) {
}
// Output the global variable definitions and contents...
- if (!M->gempty()) {
+ if (!M.gempty()) {
Out << "\n\n/* Global Variable Definitions and Initialization */\n";
- for (Module::giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
+ for (Module::giterator I = M.gbegin(), E = M.gend(); I != E; ++I)
if (!I->isExternal()) {
if (I->hasInternalLinkage())
Out << "static ";
@@ -755,28 +734,14 @@ void CWriter::printModule(Module *M) {
}
// Output all floating point constants that cannot be printed accurately...
- printFloatingPointConstants(*M);
+ printFloatingPointConstants(M);
- // Output all of the functions...
- emittedInvoke = false;
- if (!M->empty()) {
+ if (!M.empty())
Out << "\n\n/* Function Bodies */\n";
- for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
- printFunction(I);
- }
-
- // If the program included an invoke instruction, we need to output the
- // support code for it here!
- if (emittedInvoke) {
- Out << "\n/* More support for the invoke instruction */\n"
- << "struct __llvm_jmpbuf_list_t *__llvm_jmpbuf_list "
- << "__attribute__((common)) = 0;\n";
- }
-
- // Done with global FP constants
- FPConstantMap.clear();
+ return false;
}
+
/// Output all floating point constants that cannot be printed accurately...
void CWriter::printFloatingPointConstants(Module &M) {
union {
@@ -963,36 +928,23 @@ void CWriter::printFunctionSignature(const Function *F, bool Prototype) {
printType(Out, F->getReturnType(), FunctionInnards.str());
}
-void CWriter::printFunction(Function *F) {
- if (F->isExternal()) return;
-
- printFunctionSignature(F, false);
+void CWriter::printFunction(Function &F) {
+ printFunctionSignature(&F, false);
Out << " {\n";
- // Determine whether or not the function contains any invoke instructions.
- bool HasInvoke = false;
- for (Function::iterator I = F->begin(), E = F->end(); I != E; ++I)
- if (isa<InvokeInst>(I->getTerminator())) {
- HasInvoke = true;
- break;
- }
-
// print local variable information for the function
- for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I)
+ for (inst_iterator I = inst_begin(&F), E = inst_end(&F); I != E; ++I)
if (const AllocaInst *AI = isDirectAlloca(*I)) {
Out << " ";
- if (HasInvoke) Out << "VOLATILE_FOR_SETJMP ";
printType(Out, AI->getAllocatedType(), Mang->getValueName(AI));
Out << "; /* Address exposed local */\n";
} else if ((*I)->getType() != Type::VoidTy && !isInlinableInst(**I)) {
Out << " ";
- if (HasInvoke) Out << "VOLATILE_FOR_SETJMP ";
printType(Out, (*I)->getType(), Mang->getValueName(*I));
Out << ";\n";
if (isa<PHINode>(*I)) { // Print out PHI node temporaries as well...
Out << " ";
- if (HasInvoke) Out << "VOLATILE_FOR_SETJMP ";
printType(Out, (*I)->getType(),
Mang->getValueName(*I)+"__PHI_TEMPORARY");
Out << ";\n";
@@ -1002,7 +954,7 @@ void CWriter::printFunction(Function *F) {
Out << "\n";
// print the basic blocks
- for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
+ for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
BasicBlock *Prev = BB->getPrev();
// Don't print the label for the basic block if there are no uses, or if the
@@ -1080,43 +1032,12 @@ void CWriter::visitSwitchInst(SwitchInst &SI) {
}
void CWriter::visitInvokeInst(InvokeInst &II) {
- Out << " {\n"
- << " struct __llvm_jmpbuf_list_t Entry;\n"
- << " Entry.next = __llvm_jmpbuf_list;\n"
- << " if (setjmp(Entry.buf)) {\n"
- << " __llvm_jmpbuf_list = Entry.next;\n";
- printBranchToBlock(II.getParent(), II.getUnwindDest(), 4);
- Out << " }\n"
- << " __llvm_jmpbuf_list = &Entry;\n"
- << " ";
-
- if (II.getType() != Type::VoidTy) outputLValue(&II);
- visitCallSite(&II);
- Out << ";\n"
- << " __llvm_jmpbuf_list = Entry.next;\n"
- << " }\n";
- printBranchToBlock(II.getParent(), II.getNormalDest(), 0);
- emittedInvoke = true;
+ assert(0 && "Lowerinvoke pass didn't work!");
}
void CWriter::visitUnwindInst(UnwindInst &I) {
- // The unwind instructions causes a control flow transfer out of the current
- // function, unwinding the stack until a caller who used the invoke
- // instruction is found. In this context, we code generated the invoke
- // instruction to add an entry to the top of the jmpbuf_list. Thus, here we
- // just have to longjmp to the specified handler.
- Out << " if (__llvm_jmpbuf_list == 0) { /* unwind */\n"
- << "#ifdef _LP64\n"
- << " extern signed long long write();\n"
- << "#else\n"
- << " extern write();\n"
- << "#endif\n"
- << " ((void (*)(int, void*, unsigned))write)(2,\n"
- << " \"throw found with no handler!\\n\", 31); abort();\n"
- << " }\n"
- << " longjmp(__llvm_jmpbuf_list->buf, 1);\n";
- emittedInvoke = true;
+ assert(0 && "Lowerinvoke pass didn't work!");
}
bool isGotoCodeNecessary(BasicBlock *From, BasicBlock *To) {
@@ -1473,4 +1394,8 @@ void CWriter::visitVAArgInst(VAArgInst &I) {
// External Interface declaration
//===----------------------------------------------------------------------===//
-Pass *llvm::createWriteToCPass(std::ostream &o) { return new CWriter(o); }
+void llvm::AddPassesToWriteC(PassManager &PM, std::ostream &o) {
+ PM.add(createLowerInvokePass());
+ //PM.add(createLowerAllocationsPass());
+ PM.add(new CWriter(o));
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-16 02:40:23 +0000