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merge(3p/absl): subtree merge of Abseil up to e19260f

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... notably, this includes Abseil's own StatusOr type, which
conflicted with our implementation (that was taken from TensorFlow).

Change-Id: Ie7d6764b64055caaeb8dc7b6b9d066291e6b538f
This commit is contained in:
Vincent Ambo 2020-11-21 14:43:54 +01:00
parent cc27324d02
commit 082c006c04
854 changed files with 11260 additions and 5296 deletions
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9
third_party/abseil_cpp/absl/base/internal/bits.h vendored
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@ -83,10 +83,11 @@ ABSL_BASE_INTERNAL_FORCEINLINE int CountLeadingZeros64(uint64_t n) {
#elif defined(_MSC_VER) && !defined(__clang__)
// MSVC does not have __buitin_clzll. Compose two calls to _BitScanReverse
unsigned long result = 0; // NOLINT(runtime/int)
if ((n >> 32) && _BitScanReverse(&result, n >> 32)) {
if ((n >> 32) &&
_BitScanReverse(&result, static_cast<unsigned long>(n >> 32))) {
return 31 - result;
}
if (_BitScanReverse(&result, n)) {
if (_BitScanReverse(&result, static_cast<unsigned long>(n))) {
return 63 - result;
}
return 64;
@ -170,10 +171,10 @@ ABSL_BASE_INTERNAL_FORCEINLINE int CountTrailingZerosNonZero64(uint64_t n) {
#elif defined(_MSC_VER) && !defined(__clang__)
unsigned long result = 0; // NOLINT(runtime/int)
if (static_cast<uint32_t>(n) == 0) {
_BitScanForward(&result, n >> 32);
_BitScanForward(&result, static_cast<unsigned long>(n >> 32));
return result + 32;
}
_BitScanForward(&result, n);
_BitScanForward(&result, static_cast<unsigned long>(n));
return result;
#elif defined(__GNUC__) || defined(__clang__)
static_assert(sizeof(unsigned long long) == sizeof(n), // NOLINT(runtime/int)