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41242013
2015 Jan 07
2
[LLVMdev] Inclusion of iostream affects devirtualization in release_35
Hello,
I've stumbled upon the following behavior in branches/release_35 (as of
218689) under ubuntu 14.04 LTS amd64: whenever I include the (system-wise)
gnu iostream header, clang++ stops devirtualizing the following code:
#if BREAKAGE_ENSUES
#include <iostream>
#endif
struct Base {
virtual int foo() const = 0;
};
struct A : Base {
int a;
A(const int a)
: a(a) {
}
int foo() const