RUN: llvm-cxxfilt -n _Z1fi __Z1fi _____Z1fi f ___ZSt1ff_block_invoke ____ZSt1ff_block_invoke | FileCheck %s
CHECK: f(int)
CHECK-NEXT: f(int)
CHECK-NEXT: _____Z1fi
CHECK-NEXT: f
CHECK-NEXT: invocation function for block in std::f(float)
CHECK-NEXT: invocation function for block in std::f(float)