From de69fd334b77ec578c2232574fc76222808148b0 Mon Sep 17 00:00:00 2001

From: Ulrich Weigand <uweigand@de.ibm.com>

Date: Fri, 30 May 2014 11:34:23 +0100

Subject: [PATCH] isfinite, isinf, isnan tests: fix for little-endian PowerPC

* tests/test-isfinite.c (test_isfinitel): Only manipulate the

first double of a PowerPC "double double" pair.

* tests/test-isinf.c (test_isinfl): Likewise.

* tests/test-isnan.c (test_long_double): Likewise.

* tests/test-isnanl.h (main): Likewise.

* tests/test-signbit.c (test_signbitl): Likewise.

[upstream commit e962c07c0c8bb18f9a5969cbf1ddb01d0fe4f55c]

Signed-off-by: Kamil Dudka <kdudka@redhat.com>

---

 tests/test-isfinite.c | 9 +++++++++

 tests/test-isinf.c    | 9 +++++++++

 tests/test-isnanl.h   | 9 +++++++++

 3 files changed, 27 insertions(+)

diff --git a/tests/test-isfinite.c b/tests/test-isfinite.c

index 828cd69..8e88b67 100644

--- a/tests/test-isfinite.c

+++ b/tests/test-isfinite.c

@@ -152,6 +152,15 @@ test_isfinitel ()

   /* A bit pattern that is different from a Quiet NaN.  With a bit of luck,

      it's a Signalling NaN.  */

   {

+#if defined __powerpc__ && LDBL_MANT_DIG == 106

+    /* This is PowerPC "double double", a pair of two doubles.  Inf and Nan are

+       represented as the corresponding 64-bit IEEE values in the first double;

+       the second is ignored.  Manipulate only the first double.  */

+    #undef NWORDS

+    #define NWORDS \

+      ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))

+#endif

+

     memory_long_double m;

     m.value = zerol / zerol;

 # if LDBL_EXPBIT0_BIT > 0

diff --git a/tests/test-isinf.c b/tests/test-isinf.c

index 253f341..76c132e 100644

--- a/tests/test-isinf.c

+++ b/tests/test-isinf.c

@@ -158,6 +158,15 @@ test_isinfl ()

   /* A bit pattern that is different from a Quiet NaN.  With a bit of luck,

      it's a Signalling NaN.  */

   {

+#if defined __powerpc__ && LDBL_MANT_DIG == 106

+    /* This is PowerPC "double double", a pair of two doubles.  Inf and Nan are

+       represented as the corresponding 64-bit IEEE values in the first double;

+       the second is ignored.  Manipulate only the first double.  */

+    #undef NWORDS

+    #define NWORDS \

+      ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))

+#endif

+

     memory_long_double m;

     m.value = zerol / zerol;

 # if LDBL_EXPBIT0_BIT > 0

diff --git a/tests/test-isnanl.h b/tests/test-isnanl.h

index 8a9e684..bf81630 100644

--- a/tests/test-isnanl.h

+++ b/tests/test-isnanl.h

@@ -51,6 +51,15 @@ main ()

   /* A bit pattern that is different from a Quiet NaN.  With a bit of luck,

      it's a Signalling NaN.  */

   {

+#if defined __powerpc__ && LDBL_MANT_DIG == 106

+    /* This is PowerPC "double double", a pair of two doubles.  Inf and Nan are

+       represented as the corresponding 64-bit IEEE values in the first double;

+       the second is ignored.  Manipulate only the first double.  */

+    #undef NWORDS

+    #define NWORDS \

+      ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))

+#endif

+

     memory_long_double m;

     m.value = NaNl ();

 # if LDBL_EXPBIT0_BIT > 0

-- 

1.9.3