diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 6e536f07298..222fc82d197 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1498,6 +1498,7 @@ void CWriter::visitVAArgInst(VAArgInst &I) {
 //===----------------------------------------------------------------------===//
 
 bool CTargetMachine::addPassesToEmitAssembly(PassManager &PM, std::ostream &o) {
+  PM.add(createLowerGCPass());
   PM.add(createLowerAllocationsPass());
   PM.add(createLowerInvokePass());
   PM.add(new CBackendNameAllUsedStructs());
diff --git a/lib/Target/CBackend/Writer.cpp b/lib/Target/CBackend/Writer.cpp
index 6e536f07298..222fc82d197 100644
--- a/lib/Target/CBackend/Writer.cpp
+++ b/lib/Target/CBackend/Writer.cpp
@@ -1498,6 +1498,7 @@ void CWriter::visitVAArgInst(VAArgInst &I) {
 //===----------------------------------------------------------------------===//
 
 bool CTargetMachine::addPassesToEmitAssembly(PassManager &PM, std::ostream &o) {
+  PM.add(createLowerGCPass());
   PM.add(createLowerAllocationsPass());
   PM.add(createLowerInvokePass());
   PM.add(new CBackendNameAllUsedStructs());
diff --git a/lib/Target/SparcV9/SparcV9TargetMachine.cpp b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
index c5d815c987e..06efeb31e25 100644
--- a/lib/Target/SparcV9/SparcV9TargetMachine.cpp
+++ b/lib/Target/SparcV9/SparcV9TargetMachine.cpp
@@ -125,6 +125,9 @@ SparcV9TargetMachine::SparcV9TargetMachine(IntrinsicLowering *il)
 bool
 SparcV9TargetMachine::addPassesToEmitAssembly(PassManager &PM, std::ostream &Out)
 {
+  // FIXME: Implement efficient support for garbage collection intrinsics.
+  PM.add(createLowerGCPass());
+
   // Replace malloc and free instructions with library calls.
   PM.add(createLowerAllocationsPass());
   
@@ -199,6 +202,9 @@ SparcV9TargetMachine::addPassesToEmitAssembly(PassManager &PM, std::ostream &Out
 /// generation for the UltraSparcV9.
 ///
 void SparcV9JITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
+  // FIXME: Implement efficient support for garbage collection intrinsics.
+  PM.add(createLowerGCPass());
+
   // Replace malloc and free instructions with library calls.
   PM.add(createLowerAllocationsPass());
   
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 0d9a0d6e40e..a1884a6725e 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -59,6 +59,9 @@ X86TargetMachine::X86TargetMachine(const Module &M, IntrinsicLowering *IL)
 // does to emit statically compiled machine code.
 bool X86TargetMachine::addPassesToEmitAssembly(PassManager &PM,
 					       std::ostream &Out) {
+  // FIXME: Implement efficient support for garbage collection intrinsics.
+  PM.add(createLowerGCPass());
+
   // FIXME: Implement the invoke/unwind instructions!
   PM.add(createLowerInvokePass());
 
@@ -117,6 +120,8 @@ bool X86TargetMachine::addPassesToEmitAssembly(PassManager &PM,
 /// not supported for this target.
 ///
 void X86JITInfo::addPassesToJITCompile(FunctionPassManager &PM) {
+  // FIXME: Implement efficient support for garbage collection intrinsics.
+  PM.add(createLowerGCPass());
 
   // FIXME: Implement the invoke/unwind instructions!
   PM.add(createLowerInvokePass());