Add "support" for stacksave/stackrestore to the dag isel

llvm-svn: 25268
2006-01-13 02:24:42 +00:00 · 2006-01-13 02:24:42 +00:00 · 6c9c250dcd
parent 3b2b0aff0c
commit 6c9c250dcd
1 changed files with 5 additions and 0 deletions
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@ -1004,6 +1004,11 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
                             getValue(I.getOperand(1)).getValueType(),
                             getValue(I.getOperand(1))));
    return 0;
+  case Intrinsic::stacksave:
+    setValue(&I, DAG.getNode(ISD::UNDEF, TLI.getValueType(I.getType())));
+    return 0;  // FIXME: discard stacksave/restore
+  case Intrinsic::stackrestore:
+    return 0;  // FIXME: discard stacksave/restore
  case Intrinsic::prefetch:
    // FIXME: Currently discarding prefetches.
    return 0;