Make sure to copy back arguments that can be changed by FindAllocationOverload. This fixes placement new. (Sebastian, please review).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72673 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index a44dcf6..65018da 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -508,6 +508,11 @@
return true;
}
+ // FindAllocationOverload can change the passed in arguments, so we need to
+ // copy them back.
+ if (NumPlaceArgs > 0)
+ std::copy(&AllocArgs[1], AllocArgs.end(), PlaceArgs);
+
// FIXME: This is leaked on error. But so much is currently in Sema that it's
// easier to clean it in one go.
AllocArgs[0]->Destroy(Context);
diff --git a/test/CodeGenCXX/new.cpp b/test/CodeGenCXX/new.cpp
index fddda2b..d07466d 100644
--- a/test/CodeGenCXX/new.cpp
+++ b/test/CodeGenCXX/new.cpp
@@ -3,3 +3,10 @@
void t1() {
int* a = new int;
}
+
+// Placement.
+void* operator new(unsigned long, void*) throw();
+
+void t2(int* a) {
+ int* b = new (a) int;
+}