Author: clamb
Date: Thu Jan 31 01:09:08 2008
New Revision: 46605
URL: http://llvm.org/viewvc/llvm-project?rev=46605&view=rev
Log:
Add more thorough error checking for NULL register classes.
Modified:
llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
Modified: llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp?rev=46605&r1=46604&r2=46605&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/ScheduleDAG.cpp Thu Jan 31 01:09:08 2008
@@ -597,10 +597,11 @@
// Grab the destination register
const TargetRegisterClass *DRC = 0;
DRC = RegInfo.getRegClass(VRBase);
- assert(SRC == DRC &&
+ assert(SRC && DRC && SRC == DRC &&
"Source subregister and destination must have the same class");
} else {
// Create the reg
+ assert(SRC && "Couldn't find source register class");
VRBase = RegInfo.createVirtualRegister(SRC);
}
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