[llvm-commits] [llvm] r104869 - in /llvm/trunk: include/llvm/Intrinsics.td lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

[Jim Grosbach]

Author: grosbach
Date: Thu May 27 13:52:11 2010
New Revision: 104869

URL: http://llvm.org/viewvc/llvm-project?rev=104869&view=rev
Log:
hook ISD::STACKADDR to an intrinsic

Modified:
    llvm/trunk/include/llvm/Intrinsics.td
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

Modified: llvm/trunk/include/llvm/Intrinsics.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Intrinsics.td?rev=104869&r1=104868&r2=104869&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Intrinsics.td (original)
+++ llvm/trunk/include/llvm/Intrinsics.td Thu May 27 13:52:11 2010
@@ -197,12 +197,13 @@
 def int_returnaddress : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>;
 def int_frameaddress  : Intrinsic<[llvm_ptr_ty], [llvm_i32_ty], [IntrNoMem]>;
 
-// Note: we treat stacksave/stackrestore as writemem because we don't otherwise
-// model their dependencies on allocas.
+// Note: we treat stacksave/stackrestore and stackaddr as writemem because we
+// don't otherwise model their dependencies on allocas.
 def int_stacksave     : Intrinsic<[llvm_ptr_ty]>,
                         GCCBuiltin<"__builtin_stack_save">;
 def int_stackrestore  : Intrinsic<[], [llvm_ptr_ty]>,
                         GCCBuiltin<"__builtin_stack_restore">;
+def int_stackaddress  : Intrinsic<[llvm_ptr_ty], []>;
 
 // IntrWriteArgMem is more pessimistic than strictly necessary for prefetch,
 // however it does conveniently prevent the prefetch from being reordered

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp?rev=104869&r1=104868&r2=104869&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp Thu May 27 13:52:11 2010
@@ -3756,6 +3756,10 @@
     setValue(&I, DAG.getNode(ISD::FRAMEADDR, dl, TLI.getPointerTy(),
                              getValue(I.getOperand(1))));
     return 0;
+  case Intrinsic::stackaddress:
+    setValue(&I, DAG.getNode(ISD::STACKADDR, dl, TLI.getPointerTy(), getRoot(),
+                             getValue(I.getOperand(1))));
+    return 0;
   case Intrinsic::setjmp:
     return "_setjmp"+!TLI.usesUnderscoreSetJmp();
   case Intrinsic::longjmp: