[EarlyCSE] Cleanup deadcode. [NFCI]
Summary: Cleanup nop assignments.
Reviewers: george.burgess.iv, davide
Subscribers: sanjoy, jlebar, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58308
llvm-svn: 354612
diff --git a/llvm/lib/Transforms/Scalar/EarlyCSE.cpp b/llvm/lib/Transforms/Scalar/EarlyCSE.cpp
index bc6c60c..c7c407c 100644
--- a/llvm/lib/Transforms/Scalar/EarlyCSE.cpp
+++ b/llvm/lib/Transforms/Scalar/EarlyCSE.cpp
@@ -1169,8 +1169,7 @@
CurrentGeneration, DT.getRootNode(),
DT.getRootNode()->begin(), DT.getRootNode()->end()));
- // Save the current generation.
- unsigned LiveOutGeneration = CurrentGeneration;
+ assert(!CurrentGeneration && "Create a new EarlyCSE instance to rerun it.");
// Process the stack.
while (!nodesToProcess.empty()) {
@@ -1202,9 +1201,6 @@
}
} // while (!nodes...)
- // Reset the current generation.
- CurrentGeneration = LiveOutGeneration;
-
return Changed;
}