obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 119 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/powerpc/darwin-longdouble.c b/gcc/testsuite/gcc.target/powerpc/darwin-longdouble.c
new file mode 100644
index 000000000..8e4259af3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/darwin-longdouble.c
@@ -0,0 +1,119 @@
+/* { dg-do run { target powerpc*-*-darwin* } } */
+/* { dg-options "" } */
+/* No options so 'long long' can be used.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+typedef unsigned long long uint64_t;
+typedef uint64_t ldbits[2];
+
+union ldu 
+{
+  ldbits lb;
+  long double ld;
+};
+
+static const struct {
+  ldbits a;
+  ldbits b;
+  ldbits result;
+} single_tests[] = {
+  /* Test of values that add to near +Inf.  */
+  { { 0x7FEFFFFFFFFFFFFFLL, 0xFC88000000000000LL },
+    { 0x7C94000000000000LL, 0x0000000000000000LL },
+    { 0x7FEFFFFFFFFFFFFFLL, 0x7C80000000000000LL } },
+  { { 0x7FEFFFFFFFFFFFFFLL, 0x7C8FFFFFFFFFFFFFLL },
+    { 0x792FFFFFFFFFFFFFLL, 0x0000000000000000LL },
+    { 0x7FEFFFFFFFFFFFFFLL, 0x7C8FFFFFFFFFFFFFLL } },
+  { { 0x7FEFFFFFFFFFFFFFLL, 0x7C8FFFFFFFFFFFFFLL },
+    { 0x7930000000000000LL, 0xF5DFFFFFFFFFFFFFLL },
+    /* correct result is: { 0x7FEFFFFFFFFFFFFFLL, 0x7C8FFFFFFFFFFFFFLL } */
+    { 0x7FF0000000000000LL, 0x0000000000000000LL } },
+  /* Test of values that add to +Inf.  */
+  { { 0x7FEFFFFFFFFFFFFFLL, 0x7C8FFFFFFFFFFFFFLL },
+    { 0x7930000000000000LL, 0x0000000000000000LL },
+    { 0x7FF0000000000000LL, 0x0000000000000000LL } },
+  /* Tests of Inf addition.  */
+  { { 0x7FF0000000000000LL, 0x0000000000000000LL },
+    { 0x0000000000000000LL, 0x0000000000000000LL },
+    { 0x7FF0000000000000LL, 0x0000000000000000LL } },
+  { { 0x7FF0000000000000LL, 0x0000000000000000LL },
+    { 0x7FF0000000000000LL, 0x0000000000000000LL },
+    { 0x7FF0000000000000LL, 0x0000000000000000LL } },
+  /* Test of Inf addition producing NaN.  */
+  { { 0x7FF0000000000000LL, 0x0000000000000000LL },
+    { 0xFFF0000000000000LL, 0x0000000000000000LL },
+    { 0x7FF8000000000000LL, 0x0000000000000000LL } },
+  /* Tests of NaN addition.  */
+  { { 0x7FF8000000000000LL, 0x0000000000000000LL },
+    { 0x0000000000000000LL, 0x0000000000000000LL },
+    { 0x7FF8000000000000LL, 0x7FF8000000000000LL } },
+  { { 0x7FF8000000000000LL, 0x0000000000000000LL },
+    { 0x7FF0000000000000LL, 0x0000000000000000LL },
+    { 0x7FF8000000000000LL, 0x7FF8000000000000LL } },
+  /* Addition of positive integers, with interesting rounding properties.  */
+  { { 0x4690000000000000LL, 0x4330000000000000LL },
+    { 0x4650000000000009LL, 0xC2FFFFFFFFFFFFF2LL },
+    /* correct result is: { 0x4691000000000001LL, 0xC32C000000000000LL } */
+    { 0x4691000000000001LL, 0xc32bfffffffffffeLL } },
+  { { 0x4690000000000000LL, 0x4330000000000000LL },
+    { 0x4650000000000008LL, 0x42F0000000000010LL },
+    { 0x4691000000000001LL, 0xC32E000000000000LL } },
+  { { 0x469FFFFFFFFFFFFFLL, 0x433FFFFFFFFFFFFFLL },
+    { 0x4340000000000000LL, 0x3FF0000000000000LL },
+    { 0x46A0000000000000LL, 0x0000000000000000LL } },
+  { { 0x469FFFFFFFFFFFFFLL, 0x433FFFFFFFFFFFFFLL },
+    { 0x4340000000000000LL, 0x0000000000000000LL },
+    { 0x46A0000000000000LL, 0xBFF0000000000000LL } },
+  /* Subtraction of integers, with cancellation.  */
+  { { 0x4690000000000000LL, 0x4330000000000000LL },
+    { 0xC690000000000000LL, 0xC330000000000000LL },
+    { 0x0000000000000000LL, 0x0000000000000000LL } },
+  { { 0x4690000000000000LL, 0x4330000000000000LL },
+    { 0xC330000000000000LL, 0x0000000000000000LL },
+    { 0x4690000000000000LL, 0x0000000000000000LL } },
+  { { 0x4690000000000000LL, 0x4330000000000000LL },
+    { 0xC330000000000000LL, 0x3FA0000000000000LL },
+    { 0x4690000000000000LL, 0x3FA0000000000000LL } },
+  { { 0x4690000000000000LL, 0x4330000000000000LL },
+    { 0xC690000000000000LL, 0x3FA0000000000000LL },
+    /* correct result is: { 0x4330000000000000LL, 0x3FA0000000000000LL } */
+    { 0x4330000000000000LL, 0x0000000000000000LL } }
+};
+    
+static int fail = 0;
+
+static void
+run_single_tests (void)
+{
+  size_t i;
+  for (i = 0; i < sizeof (single_tests) / sizeof (single_tests[0]); i++)
+    {
+      union ldu a, b, result, expected;
+      memcpy (a.lb, single_tests[i].a, sizeof (ldbits));
+      memcpy (b.lb, single_tests[i].b, sizeof (ldbits));
+      memcpy (expected.lb, single_tests[i].result, sizeof (ldbits));
+      result.ld = a.ld + b.ld;
+      if (memcmp (result.lb, expected.lb,
+		  result.ld == result.ld ? sizeof (ldbits) : sizeof (double))
+	  != 0)
+	{
+	  printf ("FAIL: %016llx %016llx + %016llx %016llx\n",
+		  a.lb[0], a.lb[1], b.lb[0], b.lb[1]);
+	  printf (" = %016llx %016llx not %016llx %016llx\n",
+		  result.lb[0], result.lb[1], expected.lb[0], expected.lb[1]);
+	  fail = 1;
+	}
+    }
+}
+
+int main(void)
+{
+  run_single_tests();
+  if (fail)
+    abort ();
+  else
+    exit (0);
+}