skip known math failures

[libc-test] / src / math / powf.c

diff --git a/src/math/powf.c b/src/math/powf.c
index 9709ec2..4778c2f 100644 (file)
--- a/src/math/powf.c
+++ b/src/math/powf.c
@@ -28,10 +28,13 @@ int main(void)
                e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW);
 
                if (!checkexcept(e, p->e, p->r)) {
+                       if (fabsf(y) < 0x1p-126f && (e|INEXACT) == (INEXACT|UNDERFLOW))
+                               printf("X ");
+                       else
+                               err++;
                        printf("%s:%d: bad fp exception: %s powf(%a,%a)=%a, want %s",
                                p->file, p->line, rstr(p->r), p->x, p->x2, p->y, estr(p->e));
                        printf(" got %s\n", estr(e));
-                       err++;
                }
                d = ulperrf(y, p->y, p->dy);
                if (!checkulp(d, p->r)) {