[llvm-commits] CVS: llvm/lib/CodeGen/LiveVariables.cpp
Alkis Evlogimenos
alkis at cs.uiuc.edu
Wed Sep 1 15:35:03 PDT 2004
Changes in directory llvm/lib/CodeGen:
LiveVariables.cpp updated: 1.42 -> 1.43
---
Log message:
Give a better assertion if we see a use before a def.
---
Diffs of the changes: (+2 -0)
Index: llvm/lib/CodeGen/LiveVariables.cpp
diff -u llvm/lib/CodeGen/LiveVariables.cpp:1.42 llvm/lib/CodeGen/LiveVariables.cpp:1.43
--- llvm/lib/CodeGen/LiveVariables.cpp:1.42 Sat Aug 28 17:43:31 2004
+++ llvm/lib/CodeGen/LiveVariables.cpp Wed Sep 1 17:34:52 2004
@@ -82,6 +82,8 @@
void LiveVariables::HandleVirtRegUse(VarInfo &VRInfo, MachineBasicBlock *MBB,
MachineInstr *MI) {
+ assert(VRInfo.DefInst && "Register use before def!");
+
// Check to see if this basic block is already a kill block...
if (!VRInfo.Kills.empty() && VRInfo.Kills.back()->getParent() == MBB) {
// Yes, this register is killed in this basic block already. Increase the
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