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

diff --git a/lib/CodeGen/ShadowStackGC.cpp b/lib/CodeGen/ShadowStackGC.cpp
index 0e6d4796e22ccfab8c454e581a8f5228a1be554f..ff58b221cb0aecb2b6f7ef547a92865d583a03c0 100644 (file)
--- a/lib/CodeGen/ShadowStackGC.cpp
+++ b/lib/CodeGen/ShadowStackGC.cpp
@@ -31,6 +31,7 @@
 #include "llvm/CodeGen/GCStrategy.h"
 #include "llvm/IntrinsicInst.h"
 #include "llvm/Module.h"
+#include "llvm/Support/CallSite.h"
 #include "llvm/Support/IRBuilder.h"
 
 using namespace llvm;
@@ -158,9 +159,10 @@ namespace {
 
           // Create a new invoke instruction.
           Args.clear();
-          Args.append(CI->op_begin() + 1, CI->op_end());
+          CallSite CS(CI);
+          Args.append(CS.arg_begin(), CS.arg_end());
 
-          InvokeInst *II = InvokeInst::Create(CI->getOperand(0),
+          InvokeInst *II = InvokeInst::Create(CI->getCalledValue(),
                                               NewBB, CleanupBB,
                                               Args.begin(), Args.end(),
                                               CI->getName(), CallBB);
@@ -192,27 +194,31 @@ Constant *ShadowStackGC::GetFrameMap(Function &F) {
 
   // Truncate the ShadowStackDescriptor if some metadata is null.
   unsigned NumMeta = 0;
-  SmallVector<Constant*,16> Metadata;
+  SmallVector<Constant*, 16> Metadata;
   for (unsigned I = 0; I != Roots.size(); ++I) {
-    Constant *C = cast<Constant>(Roots[I].first->getOperand(2));
+    Constant *C = cast<Constant>(Roots[I].first->getArgOperand(1));
     if (!C->isNullValue())
       NumMeta = I + 1;
     Metadata.push_back(ConstantExpr::getBitCast(C, VoidPtr));
   }
+  Metadata.resize(NumMeta);
 
+  const Type *Int32Ty = Type::getInt32Ty(F.getContext());
+  
   Constant *BaseElts[] = {
-    ConstantInt::get(Type::getInt32Ty(F.getContext()), Roots.size(), false),
-    ConstantInt::get(Type::getInt32Ty(F.getContext()), NumMeta, false),
+    ConstantInt::get(Int32Ty, Roots.size(), false),
+    ConstantInt::get(Int32Ty, NumMeta, false),
   };
 
   Constant *DescriptorElts[] = {
-    ConstantStruct::get(F.getContext(), BaseElts, 2, false),
-    ConstantArray::get(ArrayType::get(VoidPtr, NumMeta),
-                       Metadata.begin(), NumMeta)
+    ConstantStruct::get(StructType::get(Int32Ty, Int32Ty, NULL), BaseElts),
+    ConstantArray::get(ArrayType::get(VoidPtr, NumMeta), Metadata)
   };
 
-  Constant *FrameMap = ConstantStruct::get(F.getContext(), DescriptorElts, 2,
-                                           false);
+  Constant *FrameMap =
+    ConstantStruct::get(StructType::get(DescriptorElts[0]->getType(),
+                                        DescriptorElts[1]->getType(), NULL),
+                        DescriptorElts);
 
   std::string TypeName("gc_map.");
   TypeName += utostr(NumMeta);
@@ -322,16 +328,16 @@ void ShadowStackGC::CollectRoots(Function &F) {
 
   assert(Roots.empty() && "Not cleaned up?");
 
-  SmallVector<std::pair<CallInst*,AllocaInst*>,16> MetaRoots;
+  SmallVector<std::pair<CallInst*, AllocaInst*>, 16> MetaRoots;
 
   for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
     for (BasicBlock::iterator II = BB->begin(), E = BB->end(); II != E;)
       if (IntrinsicInst *CI = dyn_cast<IntrinsicInst>(II++))
         if (Function *F = CI->getCalledFunction())
           if (F->getIntrinsicID() == Intrinsic::gcroot) {
-            std::pair<CallInst*,AllocaInst*> Pair = std::make_pair(
-              CI, cast<AllocaInst>(CI->getOperand(1)->stripPointerCasts()));
-            if (IsNullValue(CI->getOperand(2)))
+            std::pair<CallInst*, AllocaInst*> Pair = std::make_pair(
+              CI, cast<AllocaInst>(CI->getArgOperand(0)->stripPointerCasts()));
+            if (IsNullValue(CI->getArgOperand(1)))
               Roots.push_back(Pair);
             else
               MetaRoots.push_back(Pair);