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, 132 insertions, 0 deletions

diff --git a/gcc/testsuite/c-c++-common/dfp/compare-rel.h b/gcc/testsuite/c-c++-common/dfp/compare-rel.h
new file mode 100644
index 000000000..784010814
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/dfp/compare-rel.h
@@ -0,0 +1,132 @@
+/* Basic test of runtime relational comparisons using simple values that
+   are not affected by rounding.  */
+
+#include <stdlib.h>
+#include "dfp-dbg.h"
+
+#undef FAILURE
+#ifdef DBG
+#define FAILURE(OP,KIND) \
+  { printf ("failed at line %d: %s for %s values\n", __LINE__, OP, KIND); \
+    failures++; }
+#else
+#define FAILURE(OP,KIND) __builtin_abort ();
+#endif
+
+#define PASTE2(A,B) A ## B
+#define PASTE(A,B) PASTE2(A,B)
+
+#ifndef WIDTH
+#error define WIDTH as decimal float size in bytes
+#endif
+
+#if WIDTH == 32
+#define DTYPE _Decimal32
+#define SUFFIX DF
+#elif WIDTH == 64
+#define DTYPE _Decimal64
+#define SUFFIX DD
+#elif WIDTH == 128
+#define DTYPE _Decimal128
+#define SUFFIX DL
+#elif WIDTH == 0
+/* This is for testing the test using a type known to work.  */
+#define DTYPE double
+#define SUFFIX
+#else
+#error invalid width for decimal float type
+#endif
+
+DTYPE m_two = PASTE(-2.0, SUFFIX);
+DTYPE m_one = PASTE(-1.0, SUFFIX);
+DTYPE zero  = PASTE(0.0, SUFFIX);
+DTYPE one   = PASTE(1.0, SUFFIX);
+DTYPE two   = PASTE(2.0, SUFFIX);
+
+void
+test_compares (void)
+{
+  DTYPE x = one;
+  DTYPE y = zero;
+  DTYPE z = m_one;
+
+  /* Less than or equal to: comparisons against equal values.  */
+
+  if (! (x <= one))   FAILURE ("<=", "equal")
+  if (! (y <= zero))  FAILURE ("<=", "equal")
+  if (! (z <= m_one)) FAILURE ("<=", "equal")
+
+  /* Less than or equal to: comparisons against lesser values.  */
+
+  if (x <= m_one)     FAILURE ("<=", "lesser")
+  if (x <= zero)      FAILURE ("<=", "lesser")
+  if (y <= m_one)     FAILURE ("<=", "lesser")
+  if (z <= m_two)     FAILURE ("<=", "lesser")
+
+  /* Less than or equal to: comparisons against greater values.  */
+
+  if (! (x <= two))   FAILURE ("<=", "greater")
+  if (! (y <= one))   FAILURE ("<=", "greater")
+  if (! (z <= zero))  FAILURE ("<=", "greater")
+  if (! (z <= one))   FAILURE ("<=", "greater")
+
+  /* Less than: comparisons against equal values.  */
+
+  if (x < one)        FAILURE ("<", "equal")
+  if (y < zero)       FAILURE ("<", "equal")
+  if (z < m_one)      FAILURE ("<", "equal")
+
+  /* Less than: comparisons against lesser values.  */
+
+  if (x < m_one)      FAILURE ("<", "lesser")
+  if (x < zero)       FAILURE ("<", "lesser")
+  if (y < m_one)      FAILURE ("<", "lesser")
+  if (z < m_two)      FAILURE ("<", "lesser")
+
+  /* Less than: comparisons against greater values.  */
+
+  if (! (x < two))    FAILURE ("<", "greater")
+  if (! (y < one))    FAILURE ("<", "greater")
+  if (! (z < zero))   FAILURE ("<", "greater")
+  if (! (z < one))    FAILURE ("<", "greater")
+
+  /* Greater than or equal to: comparisons against equal values.  */
+
+  if (! (x >= one))   FAILURE (">=", "equal")
+  if (! (y >= zero))  FAILURE (">=", "equal")
+  if (! (z >= m_one)) FAILURE (">=", "equal")
+
+  /* Greater than or equal to: comparisons against lesser values.  */
+
+  if (! (x >= m_one)) FAILURE (">=", "lesser")
+  if (! (x >= zero))  FAILURE (">=", "lesser")
+  if (! (y >= m_one)) FAILURE (">=", "lesser")
+  if (! (z >= m_two)) FAILURE (">=", "lesser")
+
+  /* Greater than or equal to: comparisons against greater values.  */
+
+  if (x >= two)       FAILURE (">=", "greater")
+  if (y >= one)       FAILURE (">=", "greater")
+  if (z >= zero)      FAILURE (">=", "greater")
+  if (z >= one)       FAILURE (">=", "greater")
+
+  /* Greater than: comparisons against equal values.  */
+
+  if (x > one)        FAILURE (">", "equal")
+  if (y > zero)       FAILURE (">", "equal")
+  if (z > m_one)      FAILURE (">", "equal")
+
+  /* Greater than: comparisons against lesser values.  */
+
+  if (! (x > m_one))  FAILURE (">", "lesser")
+  if (! (x > zero))   FAILURE (">", "lesser")
+  if (! (y > m_one))  FAILURE (">", "lesser")
+  if (! (z > m_two))  FAILURE (">", "lesser")
+
+  /* Greater than: comparisons against greater values.  */
+
+  if (x > two)        FAILURE (">", "greater")
+  if (y > one)        FAILURE (">", "greater")
+  if (z > zero)       FAILURE (">", "greater")
+  if (z > one)        FAILURE (">", "greater")
+}