math: Fix UB in lroundl

UBSAN: Undefined behaviour in ../sysdeps/ieee754/float128/../ldbl-128/s_lroundl.c:72:32 left shift of 562949953421312 by 14 cannot be represented in type 'long int'

diff --git a/sysdeps/ieee754/ldbl-128/s_lroundl.c b/sysdeps/ieee754/ldbl-128/s_lroundl.c
index b237b56b3875101630db86e6ad754f70556e3514..0b2ea462fb944a3114ac8167c896f9db8e5a2fe1 100644 (file)
--- a/sysdeps/ieee754/ldbl-128/s_lroundl.c
+++ b/sysdeps/ieee754/ldbl-128/s_lroundl.c
@@ -69,7 +69,7 @@ __lroundl (_Float128 x)
            result = (long int) i0;
          else
            {
-             result = ((long int) i0 << (j0 - 48)) | (j >> (112 - j0));
+             result = (i0 << (j0 - 48)) | (j >> (112 - j0));
 #ifdef FE_INVALID
              if (sizeof (long int) == 8
                  && sign == 1