| #include "flang/Common/leading-zero-bit-count.h" |
| #include "testing.h" |
| |
| using Fortran::common::LeadingZeroBitCount; |
| |
| int main() { |
| MATCH(64, LeadingZeroBitCount(std::uint64_t{0})); |
| for (int j{0}; j < 64; ++j) { |
| for (int k{0}; k < j; ++k) { |
| std::uint64_t x = (std::uint64_t{1} << j) | (std::uint64_t{1} << k); |
| MATCH(63 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k); |
| } |
| } |
| MATCH(32, LeadingZeroBitCount(std::uint32_t{0})); |
| for (int j{0}; j < 32; ++j) { |
| for (int k{0}; k < j; ++k) { |
| std::uint32_t x = (std::uint32_t{1} << j) | (std::uint32_t{1} << k); |
| MATCH(31 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k); |
| } |
| } |
| MATCH(16, LeadingZeroBitCount(std::uint16_t{0})); |
| for (int j{0}; j < 16; ++j) { |
| for (int k{0}; k < j; ++k) { |
| std::uint16_t x = (std::uint16_t{1} << j) | (std::uint16_t{1} << k); |
| MATCH(15 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k); |
| } |
| } |
| MATCH(8, LeadingZeroBitCount(std::uint8_t{0})); |
| for (int j{0}; j < 8; ++j) { |
| for (int k{0}; k < j; ++k) { |
| std::uint8_t x = (std::uint8_t{1} << j) | (std::uint8_t{1} << k); |
| MATCH(7 - j, LeadingZeroBitCount(x))("j=%d, k=%d", j, k); |
| } |
| } |
| return testing::Complete(); |
| } |