diff options
Diffstat (limited to 'modules/fdlibm/patches/10_remove_unused_function_from_k_exp_cpp.patch')
| -rw-r--r-- | modules/fdlibm/patches/10_remove_unused_function_from_k_exp_cpp.patch | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/modules/fdlibm/patches/10_remove_unused_function_from_k_exp_cpp.patch b/modules/fdlibm/patches/10_remove_unused_function_from_k_exp_cpp.patch new file mode 100644 index 0000000000..0cd417bcd2 --- /dev/null +++ b/modules/fdlibm/patches/10_remove_unused_function_from_k_exp_cpp.patch @@ -0,0 +1,107 @@ +diff --git a/k_exp.cpp b/k_exp.cpp +--- a/k_exp.cpp ++++ b/k_exp.cpp +@@ -24,18 +24,16 @@ + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + //#include <sys/cdefs.h> + //__FBSDID("$FreeBSD$"); + +-#include <complex.h> +- + #include "math_private.h" + + static const uint32_t k = 1799; /* constant for reduction */ + static const double kln2 = 1246.97177782734161156; /* k * ln2 */ + + /* + * Compute exp(x), scaled to avoid spurious overflow. An exponent is + * returned separately in 'expt'. +@@ -78,33 +76,8 @@ __ldexp_exp(double x, int expt) + double exp_x, scale; + int ex_expt; + + exp_x = __frexp_exp(x, &ex_expt); + expt += ex_expt; + INSERT_WORDS(scale, (0x3ff + expt) << 20, 0); + return (exp_x * scale); + } +- +-double complex +-__ldexp_cexp(double complex z, int expt) +-{ +- double c, exp_x, s, scale1, scale2, x, y; +- int ex_expt, half_expt; +- +- x = creal(z); +- y = cimag(z); +- exp_x = __frexp_exp(x, &ex_expt); +- expt += ex_expt; +- +- /* +- * Arrange so that scale1 * scale2 == 2**expt. We use this to +- * compensate for scalbn being horrendously slow. +- */ +- half_expt = expt / 2; +- INSERT_WORDS(scale1, (0x3ff + half_expt) << 20, 0); +- half_expt = expt - half_expt; +- INSERT_WORDS(scale2, (0x3ff + half_expt) << 20, 0); +- +- sincos(y, &s, &c); +- return (CMPLX(c * exp_x * scale1 * scale2, +- s * exp_x * scale1 * scale2)); +-} +--- a/k_expf.cpp 2022-12-13 14:39:11.791594163 -0500 ++++ b/k_expf.cpp 2022-12-13 14:39:18.631622916 -0500 +@@ -24,18 +24,16 @@ + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + //#include <sys/cdefs.h> + //__FBSDID("$FreeBSD$"); + +-#include <complex.h> +- + #include "math_private.h" + + static const uint32_t k = 235; /* constant for reduction */ + static const float kln2 = 162.88958740F; /* k * ln2 */ + + /* + * See k_exp.c for details. + * +@@ -61,29 +59,8 @@ + float exp_x, scale; + int ex_expt; + + exp_x = __frexp_expf(x, &ex_expt); + expt += ex_expt; + SET_FLOAT_WORD(scale, (0x7f + expt) << 23); + return (exp_x * scale); + } +- +-float complex +-__ldexp_cexpf(float complex z, int expt) +-{ +- float c, exp_x, s, scale1, scale2, x, y; +- int ex_expt, half_expt; +- +- x = crealf(z); +- y = cimagf(z); +- exp_x = __frexp_expf(x, &ex_expt); +- expt += ex_expt; +- +- half_expt = expt / 2; +- SET_FLOAT_WORD(scale1, (0x7f + half_expt) << 23); +- half_expt = expt - half_expt; +- SET_FLOAT_WORD(scale2, (0x7f + half_expt) << 23); +- +- sincosf(y, &s, &c); +- return (CMPLXF(c * exp_x * scale1 * scale2, +- s * exp_x * scale1 * scale2)); +-} |