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| author | Chris Lattner <sabre@nondot.org> | 2003-05-02 18:44:42 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-05-02 18:44:42 +0000 |
| commit | b589bf7d77a57e961a871ae5ffee2381722d8c0f (patch) | |
| tree | e8d92b75986c7da776cc7892daa96c55512125f6 /lib/CodeGen/PrologEpilogInserter.cpp | |
| parent | 590607b01cd9b587b819cc8fd4fb3f0e36202658 (diff) | |
| download | llvm-b589bf7d77a57e961a871ae5ffee2381722d8c0f.tar.gz llvm-b589bf7d77a57e961a871ae5ffee2381722d8c0f.tar.bz2 llvm-b589bf7d77a57e961a871ae5ffee2381722d8c0f.tar.xz | |
Fix a bug which occurred with empty basic blocks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5982 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/PrologEpilogInserter.cpp')
| -rw-r--r-- | lib/CodeGen/PrologEpilogInserter.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp index 2f7f1f4ef3..4839c09751 100644 --- a/lib/CodeGen/PrologEpilogInserter.cpp +++ b/lib/CodeGen/PrologEpilogInserter.cpp @@ -160,7 +160,7 @@ void PEI::saveCallerSavedRegisters(MachineFunction &Fn) { 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) { |