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* AIX on Power defines INT64_MIN and INT64_MAX in ways that annoy GCC, so

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special-case those definitions
* Add comments in #ifdef/#else/#endif clauses for ease of reading


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17132 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2004-10-18 18:35:21 +00:00
parent 9c02f5c566
commit 103f2eede3
1 changed files with 14 additions and 3 deletions
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17
include/llvm/Support/DataTypes.h.in
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@ -49,6 +49,17 @@
#include <stdint.h>
#endif
#if defined(_POWER) && defined(_AIX)
// GCC is strict about defining large constants: they must have LL modifier.
// We will catch INT64_MAX in the default case below.
#undef INT64_MAX
// AIX #defines INT64_MIN as (-INT64_MAX-1), or -9223372036854775808 which GCC
// complains about as `integer constant is so large that it is unsigned', so
// set INT64_MIN to be one above that:
#undef INT64_MIN
#define INT64_MIN -9223372036854775807LL
#endif
// Handle incorrect definition of uint64_t as u_int64_t
#ifndef HAVE_UINT64_T
#ifdef HAVE_U_INT64_T
@ -58,7 +69,7 @@ typedef u_int64_t uint64_t;
#endif
#endif
#else
#else /* _MSC_VER */
// Visual C++ doesn't provide standard integer headers, but it does provide
// built-in data types.
typedef __int64 int64_t;
@ -75,10 +86,10 @@ typedef signed int ssize_t;
#define INT32_MAX 2147483647
#define INT32_MIN -2147483648
#define UINT32_MAX 4294967295U
#endif
#endif /* _MSC_VER */
/* Set defaults for constants which we cannot find. */
#if !defined(INT64_MAX)
/* We couldn't determine INT64_MAX; default it. */
# define INT64_MAX 9223372036854775807LL
#endif
#if !defined(UINT64_MAX)