mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-28 04:25:10 +08:00
e10cfd0633
GCC 9 generates the same function size for Ordering::operator() in
odr_violation1.cc and odr_violation2.cc on x32:
134: 00000000 31 FUNC WEAK DEFAULT 64 _ZN8OrderingclEii
40: 00000000 31 FUNC GLOBAL DEFAULT 10 _ZN8OrderingclEii
This patch makes Ordering::operator() even more complex
134: 00000000 31 FUNC WEAK DEFAULT 64 _ZN8OrderingclEii
42: 00000000 35 FUNC GLOBAL DEFAULT 11 _ZN8OrderingclEii
* testsuite/odr_violation2.cc (Ordering::operator()): Make
expression even more complex.
43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
#include <algorithm>
|
|
#include "odr_header1.h"
|
|
|
|
class Ordering {
|
|
public:
|
|
bool operator()(int a, int b) __attribute__((never_inline));
|
|
};
|
|
|
|
// This comment makes the line numbers in Ordering::operator() all have
|
|
// two digits, which causes gold's output to be independent of which
|
|
// instruction the compiler optimizes into the front of the function.
|
|
bool Ordering::operator()(int a, int b) {
|
|
// Optimization makes this operator() a different size than the one
|
|
// in odr_violation1.cc.
|
|
return (a * 30 + b + 12345) > b / 67;
|
|
}
|
|
|
|
void SortDescending(int array[], int size) {
|
|
std::sort(array, array + size, Ordering());
|
|
}
|
|
|
|
// This is weak in odr_violation1.cc.
|
|
extern "C" int OverriddenCFunction(int i) {
|
|
return i * i;
|
|
}
|
|
|
|
// Extra lines to put SometimeInlineFunction at line 30+.
|
|
|
|
// And a dummy function to workaround a GCC 7 bug with debug line numbers.
|
|
int DummyFunction(int i) {
|
|
return i ^ 0x5555;
|
|
}
|
|
|
|
// This is inline in debug_msg.cc, which makes it a weak symbol too.
|
|
int SometimesInlineFunction(int i) {
|
|
return i * i;
|
|
}
|
|
|
|
// Instantiate the Derived vtable, with optimization (see Makefile.am).
|
|
OdrBase* CreateOdrDerived2() {
|
|
return new OdrDerived;
|
|
}
|