gold/testsuite/odr_violation2.cc

   1 #include <algorithm>
   2 #include "odr_header1.h"
   3
   4 class Ordering {
   5  public:
   6   bool operator()(int a, int b) __attribute__((never_inline));
   7 };
   8
   9 // This comment makes the line numbers in Ordering::operator() all have
  10 // two digits, which causes gold's output to be independent of which
  11 // instruction the compiler optimizes into the front of the function.
  12 bool Ordering::operator()(int a, int b) {
  13   // Optimization makes this operator() a different size than the one
  14   // in odr_violation1.cc.
  15   return (a * 30 + b + 12345) > b / 67;
  16 }
  17
  18 void SortDescending(int array[], int size) {
  19   std::sort(array, array + size, Ordering());
  20 }
  21
  22 // This is weak in odr_violation1.cc.
  23 extern "C" int OverriddenCFunction(int i) {
  24   return i * i;
  25 }
  26
  27 // Extra lines to put SometimeInlineFunction at line 30+.
  28
  29 // And a dummy function to workaround a GCC 7 bug with debug line numbers.
  30 int DummyFunction(int i) {
  31   return i ^ 0x5555;
  32 }
  33
  34 // This is inline in debug_msg.cc, which makes it a weak symbol too.
  35 int SometimesInlineFunction(int i) {
  36   return i * i;
  37 }
  38
  39 // Instantiate the Derived vtable, with optimization (see Makefile.am).
  40 OdrBase* CreateOdrDerived2() {
  41   return new OdrDerived;
  42 }