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// Check that instrprof does not introduce references to discarded sections when
// using comdats.
//
// Occasionally, it is possible that the same function can be compiled in
// different TUs with slightly different linkages, e.g., due to different
// compiler options. However, if these are comdat functions, a single
// implementation will be chosen at link time. we want to ensure that the
// profiling data does not contain a reference to the discarded section.
// UNSUPPORTED: target={{.*windows.*}}
// RUN: mkdir -p %t.d
// RUN: %clangxx_pgogen -O2 -fPIC -ffunction-sections -fdata-sections -c %s -o %t.d/a1.o -DOBJECT_1 -mllvm -disable-preinline
// RUN: %clangxx_pgogen -O2 -fPIC -ffunction-sections -fdata-sections -c %s -o %t.d/a2.o
// RUN: %clangxx_pgogen -fPIC -shared -o %t.d/liba.so %t.d/a1.o %t.d/a2.o 2>&1 | FileCheck %s --allow-empty
// Ensure that we don't get an error when linking
// CHECK-NOT: relocation refers to a discarded section: .text._ZN1CIiE1fEi
template <typename T> struct C {
void f(T x);
int g(T x) {
f(x);
return v;
}
int v;
};
template <typename T>
#ifdef OBJECT_1
__attribute__((weak))
#else
__attribute__((noinline))
#endif
void C<T>::f(T x) {
v += x;
}
#ifdef OBJECT_1
int foo() {
C<int> c;
c.f(1);
return c.g(2);
}
#else
int bar() {
C<int> c;
c.f(3);
return c.g(4);
}
#endif
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