commit 7da5d3fc657bf434a245d11ad91f22feb86296c5
author Dan Gohman <gohman@apple.com> Mon Jul 26 18:15:41 2010 +0000
committer Dan Gohman <gohman@apple.com> Mon Jul 26 18:15:41 2010 +0000
tree 8fc80d7ac32c406de16feb1220143659a7543526
parent d805bcbb0662ef82aa3864cd71a26dedbcc38e79

Handle Values with no value in getCopyFromRegs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109415 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 723e0f0..1c8f22a 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -530,6 +530,10 @@
                                       FunctionLoweringInfo &FuncInfo,
                                       DebugLoc dl,
                                       SDValue &Chain, SDValue *Flag) const {
+  // A Value with type {} or [0 x %t] needs no registers.
+  if (ValueVTs.empty())
+    return SDValue();
+
   const TargetLowering &TLI = DAG.getTargetLoweringInfo();
 
   // Assemble the legal parts into the final values.