log2              180 apps/fft/main.cpp            5*W*H*(log2(W) + log2(H))/halide_t,
log2              182 apps/fft/main.cpp            5*W*H*(log2(W) + log2(H))/fftw_t,
log2              206 apps/fft/main.cpp            2.5*W*H*(log2(W) + log2(H))/halide_t,
log2              208 apps/fft/main.cpp            2.5*W*H*(log2(W) + log2(H))/fftw_t,
log2              230 apps/fft/main.cpp            2.5*W*H*(log2(W) + log2(H))/halide_t,
log2              232 apps/fft/main.cpp            2.5*W*H*(log2(W) + log2(H))/fftw_t,
log2               18 src/StorageFolding.cpp     return static_cast<int64_t>(1) << static_cast<int64_t>(std::ceil(std::log2(x)));