[llvm-commits] [llvm] r105710 - in /llvm/trunk: lib/Target/CellSPU/SPUISelDAGToDAG.cpp test/CodeGen/CellSPU/loads.ll

[Kalle Raiskila]

Author: kraiskil
Date: Wed Jun  9 03:29:41 2010
New Revision: 105710

URL: http://llvm.org/viewvc/llvm-project?rev=105710&view=rev
Log:
Handle loading from/storing to undef pointers on SPU by inserting a 
random load/store, rather than crashing llc.

Modified:
    llvm/trunk/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
    llvm/trunk/test/CodeGen/CellSPU/loads.ll

Modified: llvm/trunk/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/CellSPU/SPUISelDAGToDAG.cpp?rev=105710&r1=105709&r2=105710&view=diff
==============================================================================
--- llvm/trunk/lib/Target/CellSPU/SPUISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/CellSPU/SPUISelDAGToDAG.cpp Wed Jun  9 03:29:41 2010
@@ -606,7 +606,9 @@
     Base = CurDAG->getTargetConstant(0, N.getValueType());
     Index = N;
     return true;
-  } else if (Opc == ISD::Register || Opc == ISD::CopyFromReg) {
+  } else if (Opc == ISD::Register 
+           ||Opc == ISD::CopyFromReg 
+           ||Opc == ISD::UNDEF) {
     unsigned OpOpc = Op->getOpcode();
 
     if (OpOpc == ISD::STORE || OpOpc == ISD::LOAD) {

Modified: llvm/trunk/test/CodeGen/CellSPU/loads.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/CellSPU/loads.ll?rev=105710&r1=105709&r2=105710&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/CellSPU/loads.ll (original)
+++ llvm/trunk/test/CodeGen/CellSPU/loads.ll Wed Jun  9 03:29:41 2010
@@ -31,3 +31,8 @@
         ret <4 x i32> %rv3
 }
 
+define <4 x float> @load_undef(){
+	;CHECK lqd	$3, 0($3)
+	%val = load <4 x float>* undef
+	ret <4 x float> %val
+}