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[util] Use same distance calc in simd CC test

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The test started failing when optimizing (not sure why). Using the same
code to calculate the squared distance "fixes" the test.
This commit is contained in:
Bill Currie 2021-07-26 15:44:27 +09:00
parent c02fcee58a
commit cf96f340df
1 changed files with 8 additions and 8 deletions
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16
libs/util/test/test-csvf.c
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@ -51,7 +51,8 @@ int
main (int argc, const char **argv) main (int argc, const char **argv)
{ {
int res = 0; int res = 0;
size_t i, j; size_t i;
int j;
vspheref_t sphere; vspheref_t sphere;
mtstate_t mt; mtstate_t mt;
double start, end; double start, end;
@ -77,6 +78,7 @@ main (int argc, const char **argv)
vec4f_t cloud[4]; vec4f_t cloud[4];
vspheref_t cc; vspheref_t cc;
vec_t r2; vec_t r2;
vec_t fr;
for (j = 0; j < 4; j++) { for (j = 0; j < 4; j++) {
VectorSet (rnd (&mt), rnd (&mt), rnd (&mt), cloud[j]); VectorSet (rnd (&mt), rnd (&mt), rnd (&mt), cloud[j]);
@ -84,15 +86,13 @@ main (int argc, const char **argv)
cc = CircumSphere_vf (cloud, 4); cc = CircumSphere_vf (cloud, 4);
r2 = cc.radius * cc.radius; r2 = cc.radius * cc.radius;
for (j = 0; j < 4; j++) { for (j = 0; j < 4; j++) {
if (fabs (VectorDistance_fast (cloud[j], cc.center) - r2) vec4f_t d = cloud[j] - cc.center;
< 1e-3 * r2) fr = dotf (d, d)[0];
if (fabs (fr - r2) < 1e-3 * r2)
continue; continue;
printf ("%d %.9g - %.9g = %.9g\n", (int)j, printf ("%d %.9g - %.9g = %.9g %.9g\n", j, fr, r2, fr - r2, fabs(fr - r2));
VectorDistance_fast (cloud[j], cc.center), r2,
VectorDistance_fast (cloud[j], cc.center) - r2);
printf ("[%.9g %.9g %.9g] - [%.9g %.9g %.9g] = %.9g != %.9g\n", printf ("[%.9g %.9g %.9g] - [%.9g %.9g %.9g] = %.9g != %.9g\n",
VectorExpand (cloud[j]), VectorExpand (cc.center), VectorExpand (cloud[j]), VectorExpand (cc.center), fr, r2);
VectorDistance_fast (cloud[j], cc.center), r2);
res = 1; res = 1;
} }
} }