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authorChris Lattner <sabre@nondot.org>2003-01-16 18:06:43 +0000
committerChris Lattner <sabre@nondot.org>2003-01-16 18:06:43 +0000
commit0416d2a70aea644c3e0c06301c29f3b81ec1e42d (patch)
tree1085fce1c1e00ba06dc029f3a12517bb6672b3c8 /lib/CodeGen/PrologEpilogInserter.cpp
parent6d40c191ee4bf34ee437e7d8688d20a3eb54e88b (diff)
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Fix problems with empty basic blocks
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5326 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/PrologEpilogInserter.cpp')
-rw-r--r--lib/CodeGen/PrologEpilogInserter.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp
index 8fd2375a1f..2f7f1f4ef3 100644
--- a/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/lib/CodeGen/PrologEpilogInserter.cpp
@@ -221,7 +221,7 @@ void PEI::insertPrologEpilogCode(MachineFunction &Fn) {
const TargetInstrInfo &TII = Fn.getTarget().getInstrInfo();
for (MachineFunction::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
// If last instruction is a return instruction, add an epilogue
- if (TII.isReturn(I->back()->getOpcode()))
+ if (!I->empty() && TII.isReturn(I->back()->getOpcode()))
Fn.getTarget().getRegisterInfo()->emitEpilogue(Fn, *I);
}
}