Fix comparison in sqrtl for IBM long double 128.

(cherry picked from commit da93d21475878725c9e0cb2b6e650bd8d3628435)

diff --git a/ChangeLog b/ChangeLog
index 9b466843cabefbb31ae8d67571fc6854a507b8a6..65c45fe168618d6238e7a7890740e721b27b2134 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-11-10  Luis Machado  <luisgpm@br.ibm.com>
+
+       * sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c (__ieee754_sqrtl): Force
+         signed comparison.
+
 2010-11-04  Luis Machado  <luisgpm@br.ibm.com>
 
        * sysdeps/powerpc/powerpc32/power7/mempcpy.S: New file.

diff --git a/sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c b/sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c
index 1f533cae42257fe527019bd330ffef9f749b5752..fe6bb55b072b55281a24cb0b1a90401a5057eef7 100644 (file)
--- a/sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c
@@ -73,9 +73,9 @@ long double __ieee754_sqrtl(long double x)
        m = ((a.i[2] >> 20) & 0x7ff) - 54;
       }
       m += n;
-      if (m > 0)
+      if ((int) m > 0)
        a.i[2] = (a.i[2] & 0x800fffff) | (m << 20);
-      else if (m <= -54) {
+      else if ((int) m <= -54) {
        a.i[2] &= 0x80000000;
        a.i[3] = 0;
       } else {