X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FAsmPrinter.cpp;h=4ac8026a1b28ab52bc9beacd116019a288e7d56d;hb=ebcba612b537f45a033ccd9a60bee0c45e2e2ded;hp=3439460880755d36f769ae017da5f18701ed4efc;hpb=22c9e65643e0c6b43be37a19e59491ef0081092c;p=oota-llvm.git

diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp
index 34394608807..4ac8026a1b2 100644
--- a/lib/CodeGen/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter.cpp
@@ -29,6 +29,7 @@
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetLowering.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include <cerrno>
 using namespace llvm;
@@ -39,7 +40,8 @@ AsmVerbose("asm-verbose", cl::Hidden, cl::desc("Add comments to directives."));
 char AsmPrinter::ID = 0;
 AsmPrinter::AsmPrinter(std::ostream &o, TargetMachine &tm,
                        const TargetAsmInfo *T)
-  : MachineFunctionPass((intptr_t)&ID), FunctionNumber(0), O(o), TM(tm), TAI(T),
+  : MachineFunctionPass((intptr_t)&ID), FunctionNumber(0), O(o),
+    TM(tm), TAI(T), TRI(tm.getRegisterInfo()),
     IsInTextSection(false)
 {}
 
@@ -190,14 +192,23 @@ bool AsmPrinter::doFinalization(Module &M) {
                                          E = CMM->begin(); I != E; )
     (*--I)->finishAssembly(O, *this, *TAI);
 
+  // If we don't have any trampolines, then we don't require stack memory
+  // to be executable. Some targets have a directive to declare this.
+  Function* InitTrampolineIntrinsic = M.getFunction("llvm.init.trampoline");
+  if (!InitTrampolineIntrinsic || InitTrampolineIntrinsic->use_empty())
+    if (TAI->getNonexecutableStackDirective())
+      O << TAI->getNonexecutableStackDirective() << "\n";
+
   delete Mang; Mang = 0;
   return false;
 }
 
 std::string AsmPrinter::getCurrentFunctionEHName(const MachineFunction *MF) {
   assert(MF && "No machine function?");
-  return Mang->makeNameProper(MF->getFunction()->getName() + ".eh",
-                              TAI->getGlobalPrefix());
+  std::string Name = MF->getFunction()->getName();
+  if (Name.empty())
+    Name = Mang->getValueName(MF->getFunction());
+  return Mang->makeNameProper(Name + ".eh", TAI->getGlobalPrefix());
 }
 
 void AsmPrinter::SetupMachineFunction(MachineFunction &MF) {
@@ -878,11 +889,9 @@ void AsmPrinter::EmitString(const ConstantArray *CVA) const {
 }
 
 /// EmitGlobalConstant - Print a general LLVM constant to the .s file.
-/// If Packed is false, pad to the ABI size.
-void AsmPrinter::EmitGlobalConstant(const Constant *CV, bool Packed) {
+void AsmPrinter::EmitGlobalConstant(const Constant *CV) {
   const TargetData *TD = TM.getTargetData();
-  unsigned Size = Packed ?
-    TD->getTypeStoreSize(CV->getType()) : TD->getABITypeSize(CV->getType());
+  unsigned Size = TD->getABITypeSize(CV->getType());
 
   if (CV->isNullValue() || isa<UndefValue>(CV)) {
     EmitZeros(Size);
@@ -892,7 +901,7 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, bool Packed) {
       EmitString(CVA);
     } else { // Not a string.  Print the values in successive locations
       for (unsigned i = 0, e = CVA->getNumOperands(); i != e; ++i)
-        EmitGlobalConstant(CVA->getOperand(i), false);
+        EmitGlobalConstant(CVA->getOperand(i));
     }
     return;
   } else if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV)) {
@@ -903,13 +912,13 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, bool Packed) {
       const Constant* field = CVS->getOperand(i);
 
       // Check if padding is needed and insert one or more 0s.
-      uint64_t fieldSize = TD->getTypeStoreSize(field->getType());
+      uint64_t fieldSize = TD->getABITypeSize(field->getType());
       uint64_t padSize = ((i == e-1 ? Size : cvsLayout->getElementOffset(i+1))
                           - cvsLayout->getElementOffset(i)) - fieldSize;
       sizeSoFar += fieldSize + padSize;
 
-      // Now print the actual field value without ABI size padding.
-      EmitGlobalConstant(field, true);
+      // Now print the actual field value.
+      EmitGlobalConstant(field);
 
       // Insert padding - this may include padding to increase the size of the
       // current field up to the ABI size (if the struct is not packed) as well
@@ -1055,7 +1064,7 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, bool Packed) {
     const VectorType *PTy = CP->getType();
     
     for (unsigned I = 0, E = PTy->getNumElements(); I < E; ++I)
-      EmitGlobalConstant(CP->getOperand(I), false);
+      EmitGlobalConstant(CP->getOperand(I));
     
     return;
   }
@@ -1063,6 +1072,11 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, bool Packed) {
   const Type *type = CV->getType();
   printDataDirective(type);
   EmitConstantValueOnly(CV);
+  if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
+    O << "\t\t\t"
+      << TAI->getCommentString()
+      << " 0x" << CI->getValue().toStringUnsigned(16);
+  }
   O << "\n";
 }
 
@@ -1294,6 +1308,13 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const {
   O << "\n\t" << TAI->getInlineAsmEnd() << "\n";
 }
 
+/// printImplicitDef - This method prints the specified machine instruction
+/// that is an implicit def.
+void AsmPrinter::printImplicitDef(const MachineInstr *MI) const {
+  O << "\t" << TAI->getCommentString() << " implicit-def: "
+    << TRI->getAsmName(MI->getOperand(0).getReg()) << "\n";
+}
+
 /// printLabel - This method prints a local label used by debug and
 /// exception handling tables.
 void AsmPrinter::printLabel(const MachineInstr *MI) const {
@@ -1417,3 +1438,10 @@ void AsmPrinter::printDataDirective(const Type *type) {
   }
 }
 
+void AsmPrinter::printSuffixedName(std::string &Name, const char* Suffix) {
+  if (Name[0]=='\"')
+    O << "\"" << TAI->getPrivateGlobalPrefix() << 
+         Name.substr(1, Name.length()-2) << Suffix << "\"";
+  else
+    O << TAI->getPrivateGlobalPrefix() << Name << Suffix;
+}