Create ConstantExpr class
A ConstantExpr class represents a full expression that's in a context where a
constant expression is required. This class reflects the path the evaluator
took to reach the expression rather than the syntactic context in which the
expression occurs.
In the future, the class will be expanded to cache the result of the evaluated
expression so that it's not needlessly re-evaluated
Reviewed By: rsmith
Differential Revision: https://reviews.llvm.org/D53475
llvm-svn: 345692
diff --git a/clang/lib/CodeGen/CGBlocks.cpp b/clang/lib/CodeGen/CGBlocks.cpp
index ad0b7ab..bbd103a 100644
--- a/clang/lib/CodeGen/CGBlocks.cpp
+++ b/clang/lib/CodeGen/CGBlocks.cpp
@@ -859,10 +859,12 @@
/// Enter a full-expression with a non-trivial number of objects to
/// clean up. This is in this file because, at the moment, the only
/// kind of cleanup object is a BlockDecl*.
-void CodeGenFunction::enterNonTrivialFullExpression(const ExprWithCleanups *E) {
- assert(E->getNumObjects() != 0);
- for (const ExprWithCleanups::CleanupObject &C : E->getObjects())
- enterBlockScope(*this, C);
+void CodeGenFunction::enterNonTrivialFullExpression(const FullExpr *E) {
+ if (const auto EWC = dyn_cast<ExprWithCleanups>(E)) {
+ assert(EWC->getNumObjects() != 0);
+ for (const ExprWithCleanups::CleanupObject &C : EWC->getObjects())
+ enterBlockScope(*this, C);
+ }
}
/// Find the layout for the given block in a linked list and remove it.