Hack around extracts that aren't easy to process.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109043 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/TableGen/FastISelEmitter.cpp b/utils/TableGen/FastISelEmitter.cpp
index 08fc139b5d104c5a8169a44ee87b2dcc5b9f380a..14d60210b3147da10c85e6366a7dd7419835b06a 100644 (file)
--- a/utils/TableGen/FastISelEmitter.cpp
+++ b/utils/TableGen/FastISelEmitter.cpp
@@ -287,6 +287,10 @@ void FastISelMap::CollectPatterns(CodeGenDAGPatterns &CGP) {
       if (!DstRC)
         continue;
     } else {
+      // If this isn't a leaf, then continue since the register classes are
+      // a bit too complicated for now.
+      if (!Dst->getChild(1)->isLeaf()) continue;
+      
       DefInit *SR = dynamic_cast<DefInit*>(Dst->getChild(1)->getLeafValue());
       if (SR)
         SubRegNo = getQualifiedName(SR->getDef());