diff options
Diffstat (limited to 'unsupported/test/cxx11_tensor_intdiv.cpp')
-rw-r--r-- | unsupported/test/cxx11_tensor_intdiv.cpp | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/unsupported/test/cxx11_tensor_intdiv.cpp b/unsupported/test/cxx11_tensor_intdiv.cpp index 343b37dbd..fd6d27ae1 100644 --- a/unsupported/test/cxx11_tensor_intdiv.cpp +++ b/unsupported/test/cxx11_tensor_intdiv.cpp @@ -14,8 +14,29 @@ void test_signed_32bit() { + // Divide by one + const Eigen::internal::TensorIntDivisor<int32_t, false> div(1); + + for (int32_t j = 0; j < 25000; ++j) { + const int32_t fast_div = j / div; + const int32_t slow_div = j / 1; + VERIFY_IS_EQUAL(fast_div, slow_div); + } + + // Standard divide by 2 or more + for (int32_t i = 2; i < 25000; ++i) { + const Eigen::internal::TensorIntDivisor<int32_t, false> div(i); + + for (int32_t j = 0; j < 25000; ++j) { + const int32_t fast_div = j / div; + const int32_t slow_div = j / i; + VERIFY_IS_EQUAL(fast_div, slow_div); + } + } + + // Optimized divide by 2 or more for (int32_t i = 2; i < 25000; ++i) { - const Eigen::internal::TensorIntDivisor<int32_t> div(i); + const Eigen::internal::TensorIntDivisor<int32_t, true> div(i); for (int32_t j = 0; j < 25000; ++j) { const int32_t fast_div = j / div; @@ -42,7 +63,7 @@ void test_unsigned_32bit() void test_signed_64bit() { - for (int64_t i = 2; i < 25000; ++i) { + for (int64_t i = 1; i < 25000; ++i) { const Eigen::internal::TensorIntDivisor<int64_t> div(i); for (int64_t j = 0; j < 25000; ++j) { @@ -56,7 +77,7 @@ void test_signed_64bit() void test_unsigned_64bit() { - for (uint64_t i = 2; i < 25000; ++i) { + for (uint64_t i = 1; i < 25000; ++i) { const Eigen::internal::TensorIntDivisor<uint64_t> div(i); for (uint64_t j = 0; j < 25000; ++j) { |