Update.

	* math/libm-test.inc (lround_test): Add new test.
	(llround_test): Likewise.
	(lrint_test): Likewise.
	(llrint_test): Likewise.
	* sysdeps/ieee754/dbl-64/s_lround.c (__lround): Fix special case
	with result taking up 20 bits.
	* sysdeps/ieee754/dbl-64/s_lrint.c (__lrint): Likewise.
	* sysdeps/ieee754/dbl-64/s_llrint.c (__llrint): Likewise..
	* sysdeps/ieee754/ldbl-96/s_lroundl.c (__lroundl): Fix special
	case with result taking up 31 bits.
	* sysdeps/ieee754/ldbl-96/s_lrintl.c (__lrintl): Likewise.

5 files changed, 25 insertions, 10 deletions

diff --git a/sysdeps/ieee754/dbl-64/s_llrint.c b/sysdeps/ieee754/dbl-64/s_llrint.c
index 88e8136..893bd71 100644
--- a/sysdeps/ieee754/dbl-64/s_llrint.c
+++ b/sysdeps/ieee754/dbl-64/s_llrint.c
@@ -1,6 +1,6 @@
 /* Round argument to nearest integral value according to current rounding
    direction.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -75,7 +75,10 @@ __llrint (double x)
 	  i0 &= 0xfffff;
 	  i0 |= 0x100000;
 
-	  result = ((long long int) i0 << (j0 - 20)) | (i1 >> (52 - j0));
+	  if (j0 == 20)
+	    result = (long long int) i0;
+	  else
+	    result = ((long long int) i0 << (j0 - 20)) | (i1 >> (52 - j0));
 	}
     }
   else
diff --git a/sysdeps/ieee754/dbl-64/s_lrint.c b/sysdeps/ieee754/dbl-64/s_lrint.c
index 1cd7eb3..2da68d4 100644
--- a/sysdeps/ieee754/dbl-64/s_lrint.c
+++ b/sysdeps/ieee754/dbl-64/s_lrint.c
@@ -1,6 +1,6 @@
 /* Round argument to nearest integral value according to current rounding
    direction.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -75,7 +75,10 @@ __lrint (double x)
 	  i0 &= 0xfffff;
 	  i0 |= 0x100000;
 
-	  result = ((long int) i0 << (j0 - 20)) | (i1 >> (52 - j0));
+	  if (j0 == 20)
+	    result = (long int) i0;
+	  else
+	    result = ((long int) i0 << (j0 - 20)) | (i1 >> (52 - j0));
 	}
     }
   else
diff --git a/sysdeps/ieee754/dbl-64/s_lround.c b/sysdeps/ieee754/dbl-64/s_lround.c
index 7c11c69..4e1302a 100644
--- a/sysdeps/ieee754/dbl-64/s_lround.c
+++ b/sysdeps/ieee754/dbl-64/s_lround.c
@@ -1,5 +1,5 @@
 /* Round double value to long int.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -58,7 +58,10 @@ __lround (double x)
 	  if (j < i1)
 	    ++i0;
 
-	  result = ((long int) i0 << (j0 - 20)) | (j >> (52 - j0));
+	  if (j0 == 20)
+	    result = (long int) i0;
+	  else
+	    result = ((long int) i0 << (j0 - 20)) | (j >> (52 - j0));
 	}
     }
   else
diff --git a/sysdeps/ieee754/ldbl-96/s_lrintl.c b/sysdeps/ieee754/ldbl-96/s_lrintl.c
index b8af7aa..4212093 100644
--- a/sysdeps/ieee754/ldbl-96/s_lrintl.c
+++ b/sysdeps/ieee754/ldbl-96/s_lrintl.c
@@ -1,6 +1,6 @@
 /* Round argument to nearest integral value according to current rounding
    direction.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -70,7 +70,10 @@ __lrintl (long double x)
 	  GET_LDOUBLE_WORDS (se, i0, i1, t);
 	  j0 = (se & 0x7fff) - 0x3fff;
 
-	  result = ((long int) i0 << (j0 - 31)) | (i1 >> (63 - j0));
+	  if (j0 == 31)
+	    result = (long int) i0;
+	  else
+	    result = ((long int) i0 << (j0 - 31)) | (i1 >> (63 - j0));
 	}
     }
   else
diff --git a/sysdeps/ieee754/ldbl-96/s_lroundl.c b/sysdeps/ieee754/ldbl-96/s_lroundl.c
index 32b6f67..217ce1b 100644
--- a/sysdeps/ieee754/ldbl-96/s_lroundl.c
+++ b/sysdeps/ieee754/ldbl-96/s_lroundl.c
@@ -1,5 +1,5 @@
 /* Round long double value to long int.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -62,7 +62,10 @@ __lroundl (long double x)
 	  if (j < i1)
 	    ++i0;
 
-	  result = ((long int) i0 << (j0 - 31)) | (j >> (63 - j0));
+	  if (j0 == 31)
+	    result = (long int) i0;
+	  else
+	    result = ((long int) i0 << (j0 - 31)) | (j >> (63 - j0));
 	}
     }
   else