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-rw-r--r--lib/Transforms/Scalar/ABCD.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/ABCD.cpp b/lib/Transforms/Scalar/ABCD.cpp
index c8541d72a4..cc4683a52a 100644
--- a/lib/Transforms/Scalar/ABCD.cpp
+++ b/lib/Transforms/Scalar/ABCD.cpp
@@ -796,13 +796,15 @@ void ABCD::createConstraintSigInst(Instruction *I_op, BasicBlock *BB_succ_t,
int32_t width = cast<IntegerType>((*SIG_op_t)->getType())->getBitWidth();
inequality_graph.addEdge(I_op, *SIG_op_t, APInt(width, 0), true);
inequality_graph.addEdge(*SIG_op_t, I_op, APInt(width, 0), false);
- created.insert(*SIG_op_t);
+ if (created.insert(*SIG_op_t))
+ createConstraintPHINode(cast<PHINode>(*SIG_op_t));
}
if (*SIG_op_f) {
int32_t width = cast<IntegerType>((*SIG_op_f)->getType())->getBitWidth();
inequality_graph.addEdge(I_op, *SIG_op_f, APInt(width, 0), true);
inequality_graph.addEdge(*SIG_op_f, I_op, APInt(width, 0), false);
- created.insert(*SIG_op_f);
+ if (created.insert(*SIG_op_f))
+ createConstraintPHINode(cast<PHINode>(*SIG_op_f));
}
}