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| author | Pieter Wuille <pieter.wuille@gmail.com> | 2017-08-01 12:40:42 -0700 |
|---|---|---|
| committer | Pieter Wuille <pieter.wuille@gmail.com> | 2017-08-01 12:40:42 -0700 |
| commit | 47f3e8c74d390139967cc40e37cf5b433f0b0f9f (patch) | |
| tree | f43c285be47ec5bc66a25a7fa1c072d2cd32dc97 /src/leveldb/util/crc32c.cc | |
| parent | f66c59650527022b4f7abd98ff0a1a4e4741bd34 (diff) | |
| parent | b13a68e129f51b664e33b1894e33ebb7b94cdcc7 (diff) | |
| download | bitcoin-47f3e8c74d390139967cc40e37cf5b433f0b0f9f.tar.xz | |
Update LevelDB with latest Bitcoin-specific patches
Diffstat (limited to 'src/leveldb/util/crc32c.cc')
| -rw-r--r-- | src/leveldb/util/crc32c.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/leveldb/util/crc32c.cc b/src/leveldb/util/crc32c.cc index edd61cfd6f..b3f40eeeed 100644 --- a/src/leveldb/util/crc32c.cc +++ b/src/leveldb/util/crc32c.cc @@ -288,6 +288,10 @@ static inline uint32_t LE_LOAD32(const uint8_t *p) { // Determine if the CPU running this program can accelerate the CRC32C // calculation. static bool CanAccelerateCRC32C() { + if (!port::HasAcceleratedCRC32C()) + return false; + + // Double-check that the accelerated implementation functions correctly. // port::AcceleretedCRC32C returns zero when unable to accelerate. static const char kTestCRCBuffer[] = "TestCRCBuffer"; static const char kBufSize = sizeof(kTestCRCBuffer) - 1; |