Allow targets to custom handle softening of results or operands before trying the...

[oota-llvm.git] / lib / CodeGen / GCStrategy.cpp

diff --git a/lib/CodeGen/GCStrategy.cpp b/lib/CodeGen/GCStrategy.cpp
index d46b5256870a2249a2b510eaee8017a74ec2ce38..af5abad537bfd2406528bf758996d640c0095609 100644 (file)
--- a/lib/CodeGen/GCStrategy.cpp
+++ b/lib/CodeGen/GCStrategy.cpp
@@ -28,6 +28,7 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Support/Compiler.h"
+#include "llvm/Support/ErrorHandling.h"
 
 using namespace llvm;
 
@@ -108,7 +109,7 @@ bool GCStrategy::initializeCustomLowering(Module &M) { return false; }
  
 bool GCStrategy::performCustomLowering(Function &F) {
   cerr << "gc " << getName() << " must override performCustomLowering.\n";
-  abort();
+  llvm_unreachable(0);
   return 0;
 }
 
@@ -127,7 +128,7 @@ FunctionPass *llvm::createGCLoweringPass() {
 char LowerIntrinsics::ID = 0;
 
 LowerIntrinsics::LowerIntrinsics()
-  : FunctionPass((intptr_t)&ID) {}
+  : FunctionPass(&ID) {}
 
 const char *LowerIntrinsics::getPassName() const {
   return "Lower Garbage Collection Instructions";
@@ -144,7 +145,7 @@ bool LowerIntrinsics::doInitialization(Module &M) {
   //        work against the entire module. But this cannot be done at
   //        runFunction time (initializeCustomLowering likely needs to change
   //        the module).
-  GCModuleInfo *MI = getAnalysisToUpdate<GCModuleInfo>();
+  GCModuleInfo *MI = getAnalysisIfAvailable<GCModuleInfo>();
   assert(MI && "LowerIntrinsics didn't require GCModuleInfo!?");
   for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
     if (!I->isDeclaration() && I->hasGC())
@@ -313,7 +314,7 @@ FunctionPass *llvm::createGCMachineCodeAnalysisPass() {
 char MachineCodeAnalysis::ID = 0;
 
 MachineCodeAnalysis::MachineCodeAnalysis()
-  : MachineFunctionPass(intptr_t(&ID)) {}
+  : MachineFunctionPass(&ID) {}
 
 const char *MachineCodeAnalysis::getPassName() const {
   return "Analyze Machine Code For Garbage Collection";
@@ -329,7 +330,9 @@ void MachineCodeAnalysis::getAnalysisUsage(AnalysisUsage &AU) const {
 unsigned MachineCodeAnalysis::InsertLabel(MachineBasicBlock &MBB, 
                                      MachineBasicBlock::iterator MI) const {
   unsigned Label = MMI->NextLabelID();
-  BuildMI(MBB, MI, TII->get(TargetInstrInfo::GC_LABEL)).addImm(Label);
+  // N.B. we assume that MI is *not* equal to the "end()" iterator.
+  BuildMI(MBB, MI, MI->getDebugLoc(),
+          TII->get(TargetInstrInfo::GC_LABEL)).addImm(Label);
   return Label;
 }