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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>
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#include "odr_header1.h"
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class Ordering {
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public:
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bool operator()(int a, int b) __attribute__((never_inline));
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};
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// This comment makes the line numbers in Ordering::operator() all have
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// two digits, which causes gold's output to be independent of which
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// instruction the compiler optimizes into the front of the function.
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bool Ordering::operator()(int a, int b) {
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// Optimization makes this operator() a different size than the one
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// in odr_violation1.cc.
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return (a * 30 + b + 12345) > b / 67;
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}
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void SortDescending(int array[], int size) {
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std::sort(array, array + size, Ordering());
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}
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// This is weak in odr_violation1.cc.
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extern "C" int OverriddenCFunction(int i) {
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return i * i;
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}
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// Extra lines to put SometimeInlineFunction at line 30+.
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// And a dummy function to workaround a GCC 7 bug with debug line numbers.
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int DummyFunction(int i) {
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return i ^ 0x5555;
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}
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// This is inline in debug_msg.cc, which makes it a weak symbol too.
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int SometimesInlineFunction(int i) {
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return i * i;
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}
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// Instantiate the Derived vtable, with optimization (see Makefile.am).
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OdrBase* CreateOdrDerived2() {
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return new OdrDerived;
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}
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