From: Chris Lattner <sabre@nondot.org>
Date: Fri, 13 Jan 2006 02:24:42 +0000 (+0000)
Subject: Add "support" for stacksave/stackrestore to the dag isel
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e8f7a4bbee5b29d0c94120e7e24365113758f0a2;p=oota-llvm.git

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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25268 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index d423ddd1cab..4c594bf1faf 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/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;