diff options
Diffstat (limited to 'lib/Analysis/Environment.cpp')
| -rw-r--r-- | lib/Analysis/Environment.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Analysis/Environment.cpp b/lib/Analysis/Environment.cpp index 570a38f89e..15a1d3659f 100644 --- a/lib/Analysis/Environment.cpp +++ b/lib/Analysis/Environment.cpp @@ -139,8 +139,9 @@ EnvironmentManager::RemoveDeadBindings(Environment Env, // The block expr is dead. RVal X = I.getData(); - // Do not misclean LogicalExpr or ConditionalOperator. - // Why is it dead? Should look at LiveVariables. + // Do not misclean LogicalExpr or ConditionalOperator. It is dead at the + // beginning of itself, but we need its UndefinedVal to determine its + // RVal. if (X.isUndef() && cast<UndefinedVal>(X).getData()) continue; |