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Unified Diff: fusl/src/math/sincosf.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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Index: fusl/src/math/sincosf.c
diff --git a/fusl/src/math/sincosf.c b/fusl/src/math/sincosf.c
index f8ca7232cfb371da2be6c3c87f079515fa4c01e1..11feeabf5705289b3fd6814de91e07ff784ce993 100644
--- a/fusl/src/math/sincosf.c
+++ b/fusl/src/math/sincosf.c
@@ -18,100 +18,98 @@
#include "libm.h"
/* Small multiples of pi/2 rounded to double precision. */
-static const double
-s1pio2 = 1*M_PI_2, /* 0x3FF921FB, 0x54442D18 */
-s2pio2 = 2*M_PI_2, /* 0x400921FB, 0x54442D18 */
-s3pio2 = 3*M_PI_2, /* 0x4012D97C, 0x7F3321D2 */
-s4pio2 = 4*M_PI_2; /* 0x401921FB, 0x54442D18 */
+static const double s1pio2 = 1 * M_PI_2, /* 0x3FF921FB, 0x54442D18 */
+ s2pio2 = 2 * M_PI_2, /* 0x400921FB, 0x54442D18 */
+ s3pio2 = 3 * M_PI_2, /* 0x4012D97C, 0x7F3321D2 */
+ s4pio2 = 4 * M_PI_2; /* 0x401921FB, 0x54442D18 */
-void sincosf(float x, float *sin, float *cos)
-{
- double y;
- float_t s, c;
- uint32_t ix;
- unsigned n, sign;
+void sincosf(float x, float* sin, float* cos) {
+ double y;
+ float_t s, c;
+ uint32_t ix;
+ unsigned n, sign;
- GET_FLOAT_WORD(ix, x);
- sign = ix >> 31;
- ix &= 0x7fffffff;
+ GET_FLOAT_WORD(ix, x);
+ sign = ix >> 31;
+ ix &= 0x7fffffff;
- /* |x| ~<= pi/4 */
- if (ix <= 0x3f490fda) {
- /* |x| < 2**-12 */
- if (ix < 0x39800000) {
- /* raise inexact if x!=0 and underflow if subnormal */
- FORCE_EVAL(ix < 0x00100000 ? x/0x1p120f : x+0x1p120f);
- *sin = x;
- *cos = 1.0f;
- return;
- }
- *sin = __sindf(x);
- *cos = __cosdf(x);
- return;
- }
+ /* |x| ~<= pi/4 */
+ if (ix <= 0x3f490fda) {
+ /* |x| < 2**-12 */
+ if (ix < 0x39800000) {
+ /* raise inexact if x!=0 and underflow if subnormal */
+ FORCE_EVAL(ix < 0x00100000 ? x / 0x1p120f : x + 0x1p120f);
+ *sin = x;
+ *cos = 1.0f;
+ return;
+ }
+ *sin = __sindf(x);
+ *cos = __cosdf(x);
+ return;
+ }
- /* |x| ~<= 5*pi/4 */
- if (ix <= 0x407b53d1) {
- if (ix <= 0x4016cbe3) { /* |x| ~<= 3pi/4 */
- if (sign) {
- *sin = -__cosdf(x + s1pio2);
- *cos = __sindf(x + s1pio2);
- } else {
- *sin = __cosdf(s1pio2 - x);
- *cos = __sindf(s1pio2 - x);
- }
- return;
- }
- /* -sin(x+c) is not correct if x+c could be 0: -0 vs +0 */
- *sin = -__sindf(sign ? x + s2pio2 : x - s2pio2);
- *cos = -__cosdf(sign ? x + s2pio2 : x - s2pio2);
- return;
- }
+ /* |x| ~<= 5*pi/4 */
+ if (ix <= 0x407b53d1) {
+ if (ix <= 0x4016cbe3) { /* |x| ~<= 3pi/4 */
+ if (sign) {
+ *sin = -__cosdf(x + s1pio2);
+ *cos = __sindf(x + s1pio2);
+ } else {
+ *sin = __cosdf(s1pio2 - x);
+ *cos = __sindf(s1pio2 - x);
+ }
+ return;
+ }
+ /* -sin(x+c) is not correct if x+c could be 0: -0 vs +0 */
+ *sin = -__sindf(sign ? x + s2pio2 : x - s2pio2);
+ *cos = -__cosdf(sign ? x + s2pio2 : x - s2pio2);
+ return;
+ }
- /* |x| ~<= 9*pi/4 */
- if (ix <= 0x40e231d5) {
- if (ix <= 0x40afeddf) { /* |x| ~<= 7*pi/4 */
- if (sign) {
- *sin = __cosdf(x + s3pio2);
- *cos = -__sindf(x + s3pio2);
- } else {
- *sin = -__cosdf(x - s3pio2);
- *cos = __sindf(x - s3pio2);
- }
- return;
- }
- *sin = __sindf(sign ? x + s4pio2 : x - s4pio2);
- *cos = __cosdf(sign ? x + s4pio2 : x - s4pio2);
- return;
- }
+ /* |x| ~<= 9*pi/4 */
+ if (ix <= 0x40e231d5) {
+ if (ix <= 0x40afeddf) { /* |x| ~<= 7*pi/4 */
+ if (sign) {
+ *sin = __cosdf(x + s3pio2);
+ *cos = -__sindf(x + s3pio2);
+ } else {
+ *sin = -__cosdf(x - s3pio2);
+ *cos = __sindf(x - s3pio2);
+ }
+ return;
+ }
+ *sin = __sindf(sign ? x + s4pio2 : x - s4pio2);
+ *cos = __cosdf(sign ? x + s4pio2 : x - s4pio2);
+ return;
+ }
- /* sin(Inf or NaN) is NaN */
- if (ix >= 0x7f800000) {
- *sin = *cos = x - x;
- return;
- }
+ /* sin(Inf or NaN) is NaN */
+ if (ix >= 0x7f800000) {
+ *sin = *cos = x - x;
+ return;
+ }
- /* general argument reduction needed */
- n = __rem_pio2f(x, &y);
- s = __sindf(y);
- c = __cosdf(y);
- switch (n&3) {
- case 0:
- *sin = s;
- *cos = c;
- break;
- case 1:
- *sin = c;
- *cos = -s;
- break;
- case 2:
- *sin = -s;
- *cos = -c;
- break;
- case 3:
- default:
- *sin = -c;
- *cos = s;
- break;
- }
+ /* general argument reduction needed */
+ n = __rem_pio2f(x, &y);
+ s = __sindf(y);
+ c = __cosdf(y);
+ switch (n & 3) {
+ case 0:
+ *sin = s;
+ *cos = c;
+ break;
+ case 1:
+ *sin = c;
+ *cos = -s;
+ break;
+ case 2:
+ *sin = -s;
+ *cos = -c;
+ break;
+ case 3:
+ default:
+ *sin = -c;
+ *cos = s;
+ break;
+ }
}

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