From 0ab5481f30050ed8a84fb6f77fdf48f0fc0678c4 Mon Sep 17 00:00:00 2001
From: janis <janis@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 16 Jan 2007 18:53:16 +0000
Subject: [PATCH] gcc/ * config/dfp-bit.c (dfp_compare_op): Return separate
value for NaN. (DFP_NE, DFP_LE, DFP_GE): Return false for NaN.
gcc/testsuite/ * gcc.dg/dfp/compare-special.h: New file. *
gcc.dg/dfp/compare-special-32.c: New test. *
gcc.dg/dfp/compare-special-64.c: New test. *
gcc.dg/dfp/compare-special-128.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120830 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 5 +
gcc/config/dfp-bit.c | 10 +-
gcc/testsuite/ChangeLog | 7 +
.../gcc.dg/dfp/compare-special-d128.c | 15 +
.../gcc.dg/dfp/compare-special-d32.c | 15 +
.../gcc.dg/dfp/compare-special-d64.c | 15 +
gcc/testsuite/gcc.dg/dfp/compare-special.h | 287 ++++++++++++++++++
7 files changed, 353 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.dg/dfp/compare-special-d128.c
create mode 100644 gcc/testsuite/gcc.dg/dfp/compare-special-d32.c
create mode 100644 gcc/testsuite/gcc.dg/dfp/compare-special-d64.c
create mode 100644 gcc/testsuite/gcc.dg/dfp/compare-special.h
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index cf4cd24f51d9..80e90935bbd6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2007-01-16 Janis Johnson <janis187@us.ibm.com>
+
+ * config/dfp-bit.c (dfp_compare_op): Return separate value for NaN.
+ (DFP_NE, DFP_LE, DFP_GE): Return false for NaN.
+
2007-01-16 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/darwin-ldouble.c: Build file for SOFT_FLOAT.
diff --git a/gcc/config/dfp-bit.c b/gcc/config/dfp-bit.c
index 0ee2083e835b..47575ccc8b77 100644
--- a/gcc/config/dfp-bit.c
+++ b/gcc/config/dfp-bit.c
@@ -146,6 +146,8 @@ dfp_compare_op (dfp_binary_func op, DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
result = -1;
else if (decNumberIsZero (&res))
result = 0;
+ else if (decNumberIsNaN (&res))
+ result = -2;
else
result = 1;
@@ -302,7 +304,9 @@ DFP_NE (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
{
int stat;
stat = dfp_compare_op (decNumberCompare, arg_a, arg_b);
- /* For NE return nonzero for true, zero for false. */
+ /* For NE return zero for true, nonzero for false. */
+ if (__builtin_expect (stat == -2, 0)) /* An operand is NaN. */
+ return 1;
return stat != 0;
}
#endif /* L_ne */
@@ -336,6 +340,8 @@ DFP_LE (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
int stat;
stat = dfp_compare_op (decNumberCompare, arg_a, arg_b);
/* For LE return 0 (<= 0) for true, 1 for false. */
+ if (__builtin_expect (stat == -2, 0)) /* An operand is NaN. */
+ return 1;
return stat == 1;
}
#endif /* L_le */
@@ -347,6 +353,8 @@ DFP_GE (DFP_C_TYPE arg_a, DFP_C_TYPE arg_b)
int stat;
stat = dfp_compare_op (decNumberCompare, arg_a, arg_b);
/* For GE return 1 (>=0) for true, -1 for false. */
+ if (__builtin_expect (stat == -2, 0)) /* An operand is NaN. */
+ return -1;
return (stat != -1) ? 1 : -1;
}
#endif /* L_ge */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5d3374783bbb..b098046ddbce 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2007-01-16 Janis Johnson <janis187@us.ibm.com>
+
+ * gcc.dg/dfp/compare-special.h: New file.
+ * gcc.dg/dfp/compare-special-32.c: New test.
+ * gcc.dg/dfp/compare-special-64.c: New test.
+ * gcc.dg/dfp/compare-special-128.c: New test.
+
2007-01-16 Roger Sayle <roger@eyesopen.com>
Paul Thomas <pault@gcc.gnu.org>
Steven G. Kargl <kargl@gcc.gnu.org>
diff --git a/gcc/testsuite/gcc.dg/dfp/compare-special-d128.c b/gcc/testsuite/gcc.dg/dfp/compare-special-d128.c
new file mode 100644
index 000000000000..cef4670b7664
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/compare-special-d128.c
@@ -0,0 +1,15 @@
+/* { dg-options "-std=gnu99 -O0" } */
+
+/* C99 6.5.8 Relational operators.
+ C99 6.5.9 Equality operators.
+ Compare decimal float special values at runtime. */
+
+#define WIDTH 128
+#include "compare-special.h"
+
+int
+main ()
+{
+ test_compares ();
+ return 0;
+}
diff --git a/gcc/testsuite/gcc.dg/dfp/compare-special-d32.c b/gcc/testsuite/gcc.dg/dfp/compare-special-d32.c
new file mode 100644
index 000000000000..fa91d7edd33f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/compare-special-d32.c
@@ -0,0 +1,15 @@
+/* { dg-options "-std=gnu99 -O0" } */
+
+/* C99 6.5.8 Relational operators.
+ C99 6.5.9 Equality operators.
+ Compare decimal float special values at runtime. */
+
+#define WIDTH 32
+#include "compare-special.h"
+
+int
+main ()
+{
+ test_compares ();
+ return 0;
+}
diff --git a/gcc/testsuite/gcc.dg/dfp/compare-special-d64.c b/gcc/testsuite/gcc.dg/dfp/compare-special-d64.c
new file mode 100644
index 000000000000..2238e0190e3b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/compare-special-d64.c
@@ -0,0 +1,15 @@
+/* { dg-options "-std=gnu99 -O0" } */
+
+/* C99 6.5.8 Relational operators.
+ C99 6.5.9 Equality operators.
+ Compare decimal float special values at runtime. */
+
+#define WIDTH 64
+#include "compare-special.h"
+
+int
+main ()
+{
+ test_compares ();
+ return 0;
+}
diff --git a/gcc/testsuite/gcc.dg/dfp/compare-special.h b/gcc/testsuite/gcc.dg/dfp/compare-special.h
new file mode 100644
index 000000000000..1bd77e521563
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/compare-special.h
@@ -0,0 +1,287 @@
+/* Basic test of runtime relational comparisons using NaNs and infinities. */
+
+#include <stdlib.h>
+
+static int failcnt;
+
+#define PASTE2(A,B) A ## B
+#define PASTE(A,B) PASTE2(A,B)
+
+#ifdef DBG
+#include <stdio.h>
+#define FAILURE(OP,KIND) \
+ { printf ("failed at line %d: %s for %s values\n", __LINE__, OP, KIND); \
+ failcnt++; }
+#else
+#define FAILURE(OP,KIND) abort ();
+#endif
+
+#ifndef WIDTH
+#error define WIDTH as decimal float size in bytes
+#endif
+
+#if WIDTH == 32
+#define DTYPE _Decimal32
+#define SUFFIX DF
+#define SUFFIX2 d32
+#elif WIDTH == 64
+#define DTYPE _Decimal64
+#define SUFFIX DD
+#define SUFFIX2 d64
+#elif WIDTH == 128
+#define DTYPE _Decimal128
+#define SUFFIX DL
+#define SUFFIX2 d128
+#elif WIDTH == 0
+/* This is for testing the test using a type known to work. */
+#define DTYPE double
+#define SUFFIX
+#define SUFFIX2
+#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);
+
+volatile DTYPE x, y, z, nan, inf, m_inf;
+
+void
+test_compares (void)
+{
+ nan = PASTE(__builtin_nan, SUFFIX2) ("");
+ inf = PASTE(__builtin_inf, SUFFIX2) ();
+ m_inf = - PASTE(__builtin_inf, SUFFIX2) ();
+
+ x = PASTE(__builtin_nan, SUFFIX2) ("");
+ y = PASTE(__builtin_inf, SUFFIX2) ();
+ z = - PASTE(__builtin_inf, SUFFIX2) ();
+
+ /* Less than or equal to with NaN. */
+
+ if (x <= two) FAILURE ("<=", "NaN")
+ if (x <= zero) FAILURE ("<=", "NaN")
+ if (x <= m_one) FAILURE ("<=", "NaN")
+ if (x <= nan) FAILURE ("<=", "NaN")
+ if (x <= inf) FAILURE ("<=", "NaN")
+ if (x <= m_inf) FAILURE ("<=", "NaN")
+
+ if (two <= x) FAILURE ("<=", "NaN")
+ if (zero <= x) FAILURE ("<=", "NaN")
+ if (m_one <= x) FAILURE ("<=", "NaN")
+ if (nan <= x) FAILURE ("<=", "NaN")
+ if (inf <= x) FAILURE ("<=", "NaN")
+ if (m_inf <= x) FAILURE ("<=", "NaN")
+
+ /* Less than or equal to with infinities, no NaNs. */
+
+ if (y <= two) FAILURE ("<=", "inf")
+ if (y <= zero) FAILURE ("<=", "inf")
+ if (y <= m_one) FAILURE ("<=", "inf")
+ if (!(two <= y)) FAILURE ("<=", "inf")
+ if (!(zero <= y)) FAILURE ("<=", "inf")
+ if (!(m_one <= y)) FAILURE ("<=", "inf")
+
+ if (!(z <= two)) FAILURE ("<=", "-inf")
+ if (!(z <= zero)) FAILURE ("<=", "-inf")
+ if (!(z <= m_one)) FAILURE ("<=", "-inf")
+ if (two <= z) FAILURE ("<=", "-inf")
+ if (zero <= z) FAILURE ("<=", "-inf")
+ if (m_one <= z) FAILURE ("<=", "-inf")
+
+ if (!(y <= inf)) FAILURE ("<=", "inf")
+ if (y <= m_inf) FAILURE ("<=", "inf")
+ if (!(z <= inf)) FAILURE ("<=", "inf")
+ if (!(z <= m_inf)) FAILURE ("<=", "inf")
+
+ /* Less than with NaN. */
+
+ if (x < two) FAILURE ("<", "NaN")
+ if (x < zero) FAILURE ("<", "NaN")
+ if (x < m_one) FAILURE ("<", "NaN")
+ if (x < nan) FAILURE ("<", "NaN")
+ if (x < inf) FAILURE ("<", "NaN")
+ if (x < m_inf) FAILURE ("<", "NaN")
+
+ if (two < x) FAILURE ("<", "NaN")
+ if (zero < x) FAILURE ("<", "NaN")
+ if (m_one < x) FAILURE ("<", "NaN")
+ if (nan < x) FAILURE ("<", "NaN")
+ if (inf < x) FAILURE ("<", "NaN")
+ if (m_inf < x) FAILURE ("<", "NaN")
+
+ /* Less than with infinities, no NaNs. */
+
+ if (y < two) FAILURE ("<", "inf")
+ if (y < zero) FAILURE ("<", "inf")
+ if (y < m_one) FAILURE ("<", "inf")
+ if (!(two < y)) FAILURE ("<", "inf")
+ if (!(zero < y)) FAILURE ("<", "inf")
+ if (!(m_one < y)) FAILURE ("<", "inf")
+
+ if (!(z < two)) FAILURE ("<", "-inf")
+ if (!(z < zero)) FAILURE ("<", "-inf")
+ if (!(z < m_one)) FAILURE ("<", "-inf")
+ if (two < z) FAILURE ("<", "-inf")
+ if (zero < z) FAILURE ("<", "-inf")
+ if (m_one < z) FAILURE ("<", "-inf")
+
+ if (y < inf) FAILURE ("<=", "inf")
+ if (y < m_inf) FAILURE ("<=", "inf")
+ if (!(z < inf)) FAILURE ("<=", "inf")
+ if (z < m_inf) FAILURE ("<=", "inf")
+
+ /* Greater than or equal to with NaN. */
+
+ if (x >= two) FAILURE (">=", "NaN")
+ if (x >= zero) FAILURE (">=", "NaN")
+ if (x >= m_one) FAILURE (">=", "NaN")
+ if (x >= nan) FAILURE (">=", "NaN")
+ if (x >= inf) FAILURE (">=", "NaN")
+ if (x >= m_inf) FAILURE (">=", "NaN")
+
+ if (two >= x) FAILURE (">=", "NaN")
+ if (zero >= x) FAILURE (">=", "NaN")
+ if (m_one >= x) FAILURE (">=", "NaN")
+ if (nan >= x) FAILURE (">=", "NaN")
+ if (inf >= x) FAILURE (">=", "NaN")
+ if (m_inf >= x) FAILURE (">=", "NaN")
+
+ /* Greater than or equal to with infinities, no NaNs. */
+
+ if (!(y >= two)) FAILURE (">=", "inf")
+ if (!(y >= zero)) FAILURE (">=", "inf")
+ if (!(y >= m_one)) FAILURE (">=", "inf")
+ if (two >= y) FAILURE (">=", "inf")
+ if (zero >= y) FAILURE (">=", "inf")
+ if (m_one >= y) FAILURE (">=", "inf")
+
+ if (z >= two) FAILURE (">=", "-inf")
+ if (z >= zero) FAILURE (">=", "-inf")
+ if (z >= m_one) FAILURE (">=", "-inf")
+ if (!(two >= z)) FAILURE (">=", "-inf")
+ if (!(zero >= z)) FAILURE (">=", "-inf")
+ if (!(m_one >= z)) FAILURE (">=", "-inf")
+
+ if (!(y >= inf)) FAILURE ("<=", "inf")
+ if (!(y >= m_inf)) FAILURE ("<=", "inf")
+ if (z >= inf) FAILURE ("<=", "inf")
+ if (!(z >= m_inf)) FAILURE ("<=", "inf")
+
+ /* Greater than with NaN. */
+
+ if (x > two) FAILURE (">", "NaN")
+ if (x > zero) FAILURE (">", "NaN")
+ if (x > m_one) FAILURE (">", "NaN")
+ if (x > nan) FAILURE (">", "NaN")
+ if (x > inf) FAILURE (">", "NaN")
+ if (x > m_inf) FAILURE (">", "NaN")
+
+ if (two > x) FAILURE (">", "NaN")
+ if (zero > x) FAILURE (">", "NaN")
+ if (m_one > x) FAILURE (">", "NaN")
+ if (nan > x) FAILURE (">", "NaN")
+ if (inf > x) FAILURE (">", "NaN")
+ if (m_inf > x) FAILURE (">", "NaN")
+
+ /* Greater than with infinities, no NaNs. */
+
+ if (!(y > two)) FAILURE (">", "inf")
+ if (!(y > zero)) FAILURE (">", "inf")
+ if (!(y > m_one)) FAILURE (">", "inf")
+ if (two > y) FAILURE (">", "inf")
+ if (zero > y) FAILURE (">", "inf")
+ if (m_one > y) FAILURE (">", "inf")
+
+ if (z > two) FAILURE (">", "-inf")
+ if (z > zero) FAILURE (">", "-inf")
+ if (z > m_one) FAILURE (">", "-inf")
+ if (!(two > z)) FAILURE (">", "-inf")
+ if (!(zero > z)) FAILURE (">", "-inf")
+ if (!(m_one > z)) FAILURE (">", "-inf")
+
+ if (y > inf) FAILURE (">", "inf")
+ if (!(y > m_inf)) FAILURE (">", "inf")
+ if (z > inf) FAILURE (">", "inf")
+ if (z > m_inf) FAILURE (">", "inf")
+
+ /* Equal with NaN. */
+
+ if (x == two) FAILURE ("==", "NaN")
+ if (x == zero) FAILURE ("==", "NaN")
+ if (x == m_one) FAILURE ("==", "NaN")
+ if (x == nan) FAILURE ("==", "NaN")
+ if (x == inf) FAILURE ("==", "NaN")
+ if (x == m_inf) FAILURE ("==", "NaN")
+
+ if (two == x) FAILURE ("==", "NaN")
+ if (zero == x) FAILURE ("==", "NaN")
+ if (m_one == x) FAILURE ("==", "NaN")
+ if (nan == x) FAILURE ("==", "NaN")
+ if (inf == x) FAILURE ("==", "NaN")
+ if (m_inf == x) FAILURE ("==", "NaN")
+
+ /* Equal with infinities, no NaNs. */
+
+ if (y == two) FAILURE ("==", "inf")
+ if (y == zero) FAILURE ("==", "inf")
+ if (y == m_one) FAILURE ("==", "inf")
+ if (two == y) FAILURE ("==", "inf")
+ if (zero == y) FAILURE ("==", "inf")
+ if (m_one == y) FAILURE ("==", "inf")
+
+ if (z == two) FAILURE ("==", "-inf")
+ if (z == zero) FAILURE ("==", "-inf")
+ if (z == m_one) FAILURE ("==", "-inf")
+ if (two == z) FAILURE ("==", "-inf")
+ if (zero == z) FAILURE ("==", "-inf")
+ if (m_one == z) FAILURE ("==", "-inf")
+
+ if (!(y == inf)) FAILURE ("==", "inf")
+ if (y == m_inf) FAILURE ("==", "inf")
+ if (z == inf) FAILURE ("==", "inf")
+ if (!(z == m_inf)) FAILURE ("==", "inf")
+
+ /* Not equal with NaN. */
+
+ if (!(x != two)) FAILURE ("!=", "NaN")
+ if (!(x != zero)) FAILURE ("!=", "NaN")
+ if (!(x != m_one)) FAILURE ("!=", "NaN")
+ if (!(x != nan)) FAILURE ("!=", "NaN")
+ if (!(x != inf)) FAILURE ("!=", "NaN")
+ if (!(x != m_inf)) FAILURE ("!=", "NaN")
+
+ if (!(two != x)) FAILURE ("!=", "NaN")
+ if (!(zero != x)) FAILURE ("!=", "NaN")
+ if (!(m_one != x)) FAILURE ("!=", "NaN")
+ if (!(nan != x)) FAILURE ("!=", "NaN")
+ if (!(inf != x)) FAILURE ("!=", "NaN")
+ if (!(m_inf != x)) FAILURE ("!=", "NaN")
+
+ /* Not equal with infinities, no NaNs. */
+
+ if (!(y != two)) FAILURE ("!=", "inf")
+ if (!(y != zero)) FAILURE ("!=", "inf")
+ if (!(y != m_one)) FAILURE ("!=", "inf")
+ if (!(two != y)) FAILURE ("!=", "inf")
+ if (!(zero != y)) FAILURE ("!=", "inf")
+ if (!(m_one != y)) FAILURE ("!=", "inf")
+
+ if (!(z != two)) FAILURE ("!=", "-inf")
+ if (!(z != zero)) FAILURE ("!=", "-inf")
+ if (!(z != m_one)) FAILURE ("!=", "-inf")
+ if (!(two != z)) FAILURE ("!=", "-inf")
+ if (!(zero != z)) FAILURE ("!=", "-inf")
+ if (!(m_one != z)) FAILURE ("!=", "-inf")
+
+ if (y != inf) FAILURE ("!=", "inf")
+ if (!(y != m_inf)) FAILURE ("!=", "inf")
+ if (!(z != inf)) FAILURE ("!=", "inf")
+ if (z != m_inf) FAILURE ("!=", "inf")
+
+ if (failcnt)
+ abort ();
+}
--
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