builtin-bswap-1.c: New.

2006-10-31  Eric Christopher  <echristo@apple.com>
	    Falk Hueffner  <falk@debian.org>

	* gcc.dg/builtin-bswap-1.c: New.
	* gcc.dg/builtin-bswap-2.c: New.
	* gcc.dg/builtin-bswap-3.c: New.
	* gcc.dg/builtin-bswap-4.c: New.
	* gcc.dg/builtin-bswap-5.c: New.
	* gcc.target/i386/builtin-bswap-1.c: New.

Co-Authored-By: Falk Hueffner <falk@debian.org>

From-SVN: r118364

gcc/testsuite/ChangeLog

@@ -1,3 +1,13 @@
+2006-10-31  Eric Christopher  <echristo@apple.com>
+	    Falk Hueffner  <falk@debian.org>
+
+	* gcc.dg/builtin-bswap-1.c: New.
+	* gcc.dg/builtin-bswap-2.c: New.
+	* gcc.dg/builtin-bswap-3.c: New.
+	* gcc.dg/builtin-bswap-4.c: New.
+	* gcc.dg/builtin-bswap-5.c: New.
+	* gcc.dg/i386/builtin-bswap-1.c: New.
+
 2006-10-31  Geoffrey Keating  <geoffk@apple.com>
 
 	* gcc.dg/inline-16.c: New.

gcc/testsuite/gcc.dg/builtin-bswap-1.c

@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "" } */
+/* { dg-final { scan-assembler-not "__builtin_" } } */
+
+#include <stdint.h>
+
+uint32_t foo (uint32_t a)
+{
+  int b;
+
+  b = __builtin_bswap32 (a);
+
+  return b;
+}

gcc/testsuite/gcc.dg/builtin-bswap-2.c

@@ -0,0 +1,19 @@
+/* { dg-do run } */
+/* { dg-options "" } */
+#include <stdint.h>
+
+extern void abort (void);
+
+int main (void)
+{
+  uint32_t a = 4;
+  uint32_t b;
+
+  b = __builtin_bswap32 (a);
+  a = __builtin_bswap32 (b);
+
+  if (b == 4 || a != 4)
+    abort ();
+
+  return 0;
+}

gcc/testsuite/gcc.dg/builtin-bswap-3.c

@@ -0,0 +1,19 @@
+/* { dg-do run } */
+/* { dg-options "" } */
+#include <stdint.h>
+
+extern void abort (void);
+
+int main (void)
+{
+  uint32_t a = 0x80000000;
+  uint32_t b;
+
+  b = __builtin_bswap32 (a);
+  a = __builtin_bswap32 (b);
+
+  if (b != 0x80 || a != 0x80000000)
+    abort ();
+
+  return 0;
+}

gcc/testsuite/gcc.dg/builtin-bswap-4.c

@@ -0,0 +1,59 @@
+/* { dg-do run } */
+/* { dg-options "-Wall" } */
+
+#include <stdint.h>
+
+#define MAKE_FUN(suffix, type)						\
+  type my_bswap##suffix(type x) {					\
+    type result = 0;							\
+    int shift;								\
+    for (shift = 0; shift < 8 * sizeof (type); shift += 8)	\
+      {									\
+	result <<= 8;							\
+	result |= (x >> shift) & 0xff;					\
+      }									\
+    return result;							\
+  }									\
+
+MAKE_FUN(32, uint32_t);
+MAKE_FUN(64, uint64_t);
+
+extern void abort (void);
+
+#define NUMS32					\
+  {						\
+    0x00000000UL,				\
+    0x11223344UL,				\
+    0xffffffffUL,				\
+  }
+
+#define NUMS64					\
+  {						\
+    0x0000000000000000ULL,			\
+    0x1122334455667788ULL,			\
+    0xffffffffffffffffULL,			\
+  }
+
+uint32_t uint32_ts[] =
+  NUMS32;
+
+uint64_t uint64_ts[] =
+  NUMS64;
+
+#define N(table) (sizeof (table) / sizeof (table[0]))
+
+int
+main (void)
+{
+  int i;
+
+  for (i = 0; i < N(uint32_ts); i++)
+    if (__builtin_bswap32 (uint32_ts[i]) != my_bswap32 (uint32_ts[i]))
+      abort ();
+
+  for (i = 0; i < N(uint64_ts); i++)
+    if (__builtin_bswap64 (uint64_ts[i]) != my_bswap64 (uint64_ts[i]))
+      abort ();
+
+  return 0;
+}

gcc/testsuite/gcc.dg/builtin-bswap-5.c

@@ -0,0 +1,16 @@
+/* { dg-do run } */
+/* { dg-options "-O" } */
+int
+main (void)
+{
+  /* Test constant folding.  */
+  extern void link_error (void);
+
+  if (__builtin_bswap32(0xaabbccdd) != 0xddccbbaa)
+    link_error ();
+
+  if (__builtin_bswap64(0x1122334455667788ULL) != 0x8877665544332211ULL)
+    link_error ();
+
+  return 0;
+}

gcc/testsuite/gcc.target/i386/builtin-bswap-1.c

@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-march=i486" } */
+/* { dg-final { scan-assembler "bswap" } } */
+
+int foo (int a)
+{
+  int b;
+
+  b = __builtin_bswap (a);
+
+  return b;
+}