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Differentiate stacktrace_from_current_z_* from the non-z versions in another test so they aren't merged during LTO/ICF, related to #179

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Jeremy Rifkin 2024-10-10 20:03:03 -05:00
parent 0d53defcd9
commit 81d4776a22
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1 changed files with 6 additions and 0 deletions
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6
test/unit/from_current_z.cpp
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@ -16,16 +16,22 @@ using namespace std::literals;
// NOTE: returning something and then return stacktrace_from_current_3(line_numbers) * 2; later helps prevent the call from // NOTE: returning something and then return stacktrace_from_current_3(line_numbers) * 2; later helps prevent the call from
// being optimized to a jmp // being optimized to a jmp
CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_z_3(std::vector<int>& line_numbers) { CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_z_3(std::vector<int>& line_numbers) {
// just here to differentiate from the non-z version to prevent ICF if LTO is being used
[[maybe_unused]] volatile int x = 1;
line_numbers.insert(line_numbers.begin(), __LINE__ + 1); line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
throw std::runtime_error("foobar"); throw std::runtime_error("foobar");
} }
CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_z_2(std::vector<int>& line_numbers) { CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_z_2(std::vector<int>& line_numbers) {
// just here to differentiate from the non-z version to prevent ICF if LTO is being used
[[maybe_unused]] volatile int x = 1;
line_numbers.insert(line_numbers.begin(), __LINE__ + 1); line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
return stacktrace_from_current_z_3(line_numbers) * 2; return stacktrace_from_current_z_3(line_numbers) * 2;
} }
CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_z_1(std::vector<int>& line_numbers) { CPPTRACE_FORCE_NO_INLINE int stacktrace_from_current_z_1(std::vector<int>& line_numbers) {
// just here to differentiate from the non-z version to prevent ICF if LTO is being used
[[maybe_unused]] volatile int x = 1;
line_numbers.insert(line_numbers.begin(), __LINE__ + 1); line_numbers.insert(line_numbers.begin(), __LINE__ + 1);
return stacktrace_from_current_z_2(line_numbers) * 2; return stacktrace_from_current_z_2(line_numbers) * 2;
} }