configure.ac: Check whether the underlying type of int64_t is long or long long.

2014-06-04  Richard Biener  <rguenther@suse.de>

	* configure.ac: Check whether the underlying type of int64_t
	is long or long long.
	* configure: Regenerate.
	* config.in: Likewise.
	* hwint.h (HOST_WIDE_INT): Match the underlying type of int64_t.
	(HOST_WIDE_INT_PRINT_*): Define in terms of PRI*64.

From-SVN: r211228

1 files changed, 32 insertions, 37 deletions

diff --git a/gcc/hwint.h b/gcc/hwint.h
index e3b8a8aa..fd961fd 100644
--- a/gcc/hwint.h
+++ b/gcc/hwint.h
@@ -46,13 +46,11 @@ extern char sizeof_long_long_must_be_8[sizeof (long long) == 8 ? 1 : -1];
 #endif
 
 /* Set HOST_WIDE_INT, this should be always 64 bits.
-
-   With a sane ABI, 'long' is the largest efficient host integer type.
-   Thus, we use that unless we have to use 'long long'
-   because we're on a 32-bit host.  */
+   The underlying type is matched to that of int64_t and assumed
+   to be either long or long long.  */
 
 #define HOST_BITS_PER_WIDE_INT 64
-#if HOST_BITS_PER_LONG == 64
+#if INT64_T_IS_LONG   
 #   define HOST_WIDE_INT long
 #   define HOST_WIDE_INT_C(X) X ## L
 #else
@@ -75,48 +73,45 @@ extern char sizeof_long_long_must_be_8[sizeof (long long) == 8 ? 1 : -1];
    typedef before using the __asm_fprintf__ format attribute.  */
 typedef HOST_WIDE_INT __gcc_host_wide_int__;
 
-/* Various printf format strings for HOST_WIDE_INT.  */
-
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
-# define HOST_WIDE_INT_PRINT HOST_LONG_FORMAT
-# define HOST_WIDE_INT_PRINT_C "L"
-  /* HOST_BITS_PER_WIDE_INT is 64 bits.  */
-# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \
-    "0x%" HOST_LONG_FORMAT "x%016" HOST_LONG_FORMAT "x"
-# define HOST_WIDE_INT_PRINT_PADDED_HEX \
-    "%016" HOST_LONG_FORMAT "x"
-#else
-# define HOST_WIDE_INT_PRINT HOST_LONG_LONG_FORMAT
-# define HOST_WIDE_INT_PRINT_C "LL"
-  /* HOST_BITS_PER_WIDE_INT is 64 bits.  */
-# define HOST_WIDE_INT_PRINT_DOUBLE_HEX \
-    "0x%" HOST_LONG_LONG_FORMAT "x%016" HOST_LONG_LONG_FORMAT "x"
-# define HOST_WIDE_INT_PRINT_PADDED_HEX \
-    "%016" HOST_LONG_LONG_FORMAT "x"
-#endif /* HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG */
-
-#define HOST_WIDE_INT_PRINT_DEC "%" HOST_WIDE_INT_PRINT "d"
-#define HOST_WIDE_INT_PRINT_DEC_C HOST_WIDE_INT_PRINT_DEC HOST_WIDE_INT_PRINT_C
-#define HOST_WIDE_INT_PRINT_UNSIGNED "%" HOST_WIDE_INT_PRINT "u"
-#define HOST_WIDE_INT_PRINT_HEX "%#" HOST_WIDE_INT_PRINT "x"
-#define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
-
 /* Provide C99 <inttypes.h> style format definitions for 64bits.  */
 #ifndef HAVE_INTTYPES_H
+#if INT64_T_IS_LONG
+# define GCC_PRI64 HOST_LONG_FORMAT
+#else
+# define GCC_PRI64 HOST_LONG_LONG_FORMAT
+#endif
 #undef PRId64
-#define PRId64 HOST_WIDE_INT_PRINT "d"
+#define PRId64 GCC_PRI64 "d"
 #undef PRIi64
-#define PRIi64 HOST_WIDE_INT_PRINT "i"
+#define PRIi64 GCC_PRI64 "i"
 #undef PRIo64
-#define PRIo64 HOST_WIDE_INT_PRINT "o"
+#define PRIo64 GCC_PRI64 "o"
 #undef PRIu64
-#define PRIu64 HOST_WIDE_INT_PRINT "u"
+#define PRIu64 GCC_PRI64 "u"
 #undef PRIx64
-#define PRIx64 HOST_WIDE_INT_PRINT "x"
+#define PRIx64 GCC_PRI64 "x"
 #undef PRIX64
-#define PRIX64 HOST_WIDE_INT_PRINT "X"
+#define PRIX64 GCC_PRI64 "X"
 #endif
 
+/* Various printf format strings for HOST_WIDE_INT.  */
+
+#if INT64_T_IS_LONG
+# define HOST_WIDE_INT_PRINT HOST_LONG_FORMAT
+# define HOST_WIDE_INT_PRINT_C "L"
+#else
+# define HOST_WIDE_INT_PRINT HOST_LONG_LONG_FORMAT
+# define HOST_WIDE_INT_PRINT_C "LL"
+#endif
+
+#define HOST_WIDE_INT_PRINT_DEC "%" PRId64
+#define HOST_WIDE_INT_PRINT_DEC_C "%" PRId64 HOST_WIDE_INT_PRINT_C
+#define HOST_WIDE_INT_PRINT_UNSIGNED "%" PRIu64
+#define HOST_WIDE_INT_PRINT_HEX "%#" PRIx64
+#define HOST_WIDE_INT_PRINT_HEX_PURE "%" PRIx64
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%" PRIx64 "%016" PRIx64
+#define HOST_WIDE_INT_PRINT_PADDED_HEX "%016" PRIx64
+
 /* Define HOST_WIDEST_FAST_INT to the widest integer type supported
    efficiently in hardware.  (That is, the widest integer type that fits
    in a hardware register.)  Normally this is "long" but on some hosts it