- Doh. Pass vector by value is bad.

- Add a AnalyzeCallResult specialized for calls which produce a single value. This is used by fastisel.

llvm-svn: 55879

1 files changed, 11 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp b/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp
index 4788b15d959..5987e0cdd5b 100644
--- a/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/CallingConvLower.cpp
@@ -107,7 +107,7 @@ void CCState::AnalyzeCallOperands(SDNode *TheCall, CCAssignFn Fn) {
 
 /// AnalyzeCallOperands - Same as above except it takes vectors of types
 /// and argument flags.
-void CCState::AnalyzeCallOperands(SmallVectorImpl<MVT> ArgVTs,
+void CCState::AnalyzeCallOperands(SmallVectorImpl<MVT> &ArgVTs,
                                   SmallVectorImpl<ISD::ArgFlagsTy> &Flags,
                                   CCAssignFn Fn) {
   unsigned NumOps = ArgVTs.size();
@@ -134,3 +134,13 @@ void CCState::AnalyzeCallResult(SDNode *TheCall, CCAssignFn Fn) {
     }
   }
 }
+
+/// AnalyzeCallResult - Same as above except it's specialized for calls which
+/// produce a single value.
+void CCState::AnalyzeCallResult(MVT VT, CCAssignFn Fn) {
+  if (Fn(0, VT, VT, CCValAssign::Full, ISD::ArgFlagsTy(), *this)) {
+    cerr << "Call result has unhandled type "
+         << VT.getMVTString() << "\n";
+    abort();
+  }
+}