[llvm-commits] CVS: llvm/lib/CodeGen/PrologEpilogInserter.cpp

[Chris Lattner]

Changes in directory llvm/lib/CodeGen:

PrologEpilogInserter.cpp updated: 1.9 -> 1.10

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Log message:

Fix a bug which occurred with empty basic blocks


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Diffs of the changes:

Index: llvm/lib/CodeGen/PrologEpilogInserter.cpp
diff -u llvm/lib/CodeGen/PrologEpilogInserter.cpp:1.9 llvm/lib/CodeGen/PrologEpilogInserter.cpp:1.10
--- llvm/lib/CodeGen/PrologEpilogInserter.cpp:1.9	Thu Jan 16 12:06:43 2003
+++ llvm/lib/CodeGen/PrologEpilogInserter.cpp	Fri May  2 13:44:42 2003
@@ -160,7 +160,7 @@
   const TargetInstrInfo &TII = Fn.getTarget().getInstrInfo();
   for (MachineFunction::iterator FI = Fn.begin(), E = Fn.end(); FI != E; ++FI) {
     // If last instruction is a return instruction, add an epilogue
-    if (TII.isReturn(FI->back()->getOpcode())) {
+    if (!FI->empty() && TII.isReturn(FI->back()->getOpcode())) {
       MBB = FI; I = MBB->end()-1;
 
       for (unsigned i = 0, e = RegsToSave.size(); i != e; ++i) {