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[compiler-rt] Avoid pulling libatomic to sanitizer tests 

Avoid fallbacking to software emulated compiler atomics, that are usually
provided by libatomic, which is not always present.

This fixes the test on NetBSD, which does not provide libatomic in base.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D87568
This commit is contained in:
Kamil Rytarowski 2020-09-17 16:02:59 +02:00
parent 67ae46c820
commit 69516ddd02
1 changed files with 18 additions and 0 deletions
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18
compiler-rt/lib/sanitizer_common/tests/sanitizer_atomic_test.cpp
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@ -12,6 +12,18 @@
#include "sanitizer_common/sanitizer_atomic.h"
#include "gtest/gtest.h"
#ifndef __has_extension
#define __has_extension(x) 0
#endif
#if __has_extension(c_atomic) || __has_extension(cxx_atomic)
#define ATOMIC_LLONG_LOCK_FREE __CLANG_ATOMIC_LLONG_LOCK_FREE
#elif (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))
#define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
#else
#error Unsupported compiler.
#endif
namespace __sanitizer {
template<typename T>
@ -69,11 +81,15 @@ TEST(SanitizerCommon, AtomicStoreLoad) {
CheckStoreLoad<atomic_uint32_t, memory_order_relaxed, memory_order_release>();
CheckStoreLoad<atomic_uint32_t, memory_order_seq_cst, memory_order_seq_cst>();
// Avoid fallbacking to software emulated compiler atomics, that are usually
// provided by libatomic, which is not always present.
#if ATOMIC_LLONG_LOCK_FREE == 2
CheckStoreLoad<atomic_uint64_t, memory_order_relaxed, memory_order_relaxed>();
CheckStoreLoad<atomic_uint64_t, memory_order_consume, memory_order_relaxed>();
CheckStoreLoad<atomic_uint64_t, memory_order_acquire, memory_order_relaxed>();
CheckStoreLoad<atomic_uint64_t, memory_order_relaxed, memory_order_release>();
CheckStoreLoad<atomic_uint64_t, memory_order_seq_cst, memory_order_seq_cst>();
#endif
CheckStoreLoad<atomic_uintptr_t, memory_order_relaxed, memory_order_relaxed>
();
@ -119,7 +135,9 @@ TEST(SanitizerCommon, AtomicCompareExchangeTest) {
CheckAtomicCompareExchange<atomic_uint8_t>();
CheckAtomicCompareExchange<atomic_uint16_t>();
CheckAtomicCompareExchange<atomic_uint32_t>();
#if ATOMIC_LLONG_LOCK_FREE == 2
CheckAtomicCompareExchange<atomic_uint64_t>();
#endif
CheckAtomicCompareExchange<atomic_uintptr_t>();
}
#endif //!SANITIZER_ANDROID