Support/DataTypes.h: Clean up some types and add matching (but presumably

unused) code from .cmake to DataTypes.h.in so that the files are essentially in
sync module differences in autoconf/cmake replacement syntax.

llvm-svn: 141702

2 files changed, 92 insertions, 4 deletions

diff --git a/llvm/include/llvm/Support/DataTypes.h.cmake b/llvm/include/llvm/Support/DataTypes.h.cmake
index 23d87fbb891..8c0220a489b 100644
--- a/llvm/include/llvm/Support/DataTypes.h.cmake
+++ b/llvm/include/llvm/Support/DataTypes.h.cmake
@@ -15,12 +15,14 @@
 |*   [u]int(32|64)_t : typedefs for signed and unsigned 32/64 bit system types*|
 |*   [U]INT(8|16|32|64)_(MIN|MAX) : Constants for the min and max values.     *|
 |*                                                                            *|
-|* No library is required when using these functinons.                        *|
+|* No library is required when using these functions.                         *|
 |*                                                                            *|
 |*===----------------------------------------------------------------------===*/
 
 /* Please leave this file C-compatible. */
 
+/* Please keep this file in sync with DataTypes.h.in */
+
 #ifndef SUPPORT_DATATYPES_H
 #define SUPPORT_DATATYPES_H
 
diff --git a/llvm/include/llvm/Support/DataTypes.h.in b/llvm/include/llvm/Support/DataTypes.h.in
index 5965e8c0b2a..425805a1669 100644
--- a/llvm/include/llvm/Support/DataTypes.h.in
+++ b/llvm/include/llvm/Support/DataTypes.h.in
@@ -1,4 +1,4 @@
-/*===-- include/System/DataTypes.h - Define fixed size types -----*- C -*-===*\
+/*===-- include/Support/DataTypes.h - Define fixed size types -----*- C -*-===*\
 |*                                                                            *|
 |*                     The LLVM Compiler Infrastructure                       *|
 |*                                                                            *|
@@ -21,6 +21,8 @@
 
 /* Please leave this file C-compatible. */
 
+/* Please keep this file in sync with DataTypes.h.cmake */
+
 #ifndef SUPPORT_DATATYPES_H
 #define SUPPORT_DATATYPES_H
 
@@ -36,17 +38,19 @@
 #include <math.h>
 #endif
 
+#ifndef _MSC_VER
+
 /* Note that this header's correct operation depends on __STDC_LIMIT_MACROS
    being defined.  We would define it here, but in order to prevent Bad Things
    happening when system headers or C++ STL headers include stdint.h before we
    define it here, we define it on the g++ command line (in Makefile.rules). */
 #if !defined(__STDC_LIMIT_MACROS)
-# error "Must #define __STDC_LIMIT_MACROS before #including System/DataTypes.h"
+# error "Must #define __STDC_LIMIT_MACROS before #including Support/DataTypes.h"
 #endif
 
 #if !defined(__STDC_CONSTANT_MACROS)
 # error "Must #define __STDC_CONSTANT_MACROS before " \
-        "#including System/DataTypes.h"
+        "#including Support/DataTypes.h"
 #endif
 
 /* Note that <inttypes.h> includes <stdint.h>, if this is a C99 system. */
@@ -87,6 +91,88 @@ typedef u_int64_t uint64_t;
 #define UINT32_MAX 4294967295U
 #endif
 
+#else /* _MSC_VER */
+/* Visual C++ doesn't provide standard integer headers, but it does provide
+   built-in data types. */
+#include <stdlib.h>
+#include <stddef.h>
+#include <sys/types.h>
+#ifdef __cplusplus
+#include <cmath>
+#else
+#include <math.h>
+#endif
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+typedef signed int int32_t;
+typedef unsigned int uint32_t;
+typedef short int16_t;
+typedef unsigned short uint16_t;
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef signed int ssize_t;
+#ifndef INT8_MAX
+# define INT8_MAX 127
+#endif
+#ifndef INT8_MIN
+# define INT8_MIN -128
+#endif
+#ifndef UINT8_MAX
+# define UINT8_MAX 255
+#endif
+#ifndef INT16_MAX
+# define INT16_MAX 32767
+#endif
+#ifndef INT16_MIN
+# define INT16_MIN -32768
+#endif
+#ifndef UINT16_MAX
+# define UINT16_MAX 65535
+#endif
+#ifndef INT32_MAX
+# define INT32_MAX 2147483647
+#endif
+#ifndef INT32_MIN
+/* MSC treats -2147483648 as -(2147483648U). */
+# define INT32_MIN (-INT32_MAX - 1)
+#endif
+#ifndef UINT32_MAX
+# define UINT32_MAX 4294967295U
+#endif
+/* Certain compatibility updates to VC++ introduce the `cstdint'
+ * header, which defines the INT*_C macros. On default installs they
+ * are absent. */
+#ifndef INT8_C
+# define INT8_C(C)   C##i8
+#endif
+#ifndef UINT8_C
+# define UINT8_C(C)  C##ui8
+#endif
+#ifndef INT16_C
+# define INT16_C(C)  C##i16
+#endif
+#ifndef UINT16_C
+# define UINT16_C(C) C##ui16
+#endif
+#ifndef INT32_C
+# define INT32_C(C)  C##i32
+#endif
+#ifndef UINT32_C
+# define UINT32_C(C) C##ui32
+#endif
+#ifndef INT64_C
+# define INT64_C(C)  C##i64
+#endif
+#ifndef UINT64_C
+# define UINT64_C(C) C##ui64
+#endif
+
+#ifndef PRIx64
+# define PRIx64 "I64x"
+#endif
+
+#endif /* _MSC_VER */
+
 /* Set defaults for constants which we cannot find. */
 #if !defined(INT64_MAX)
 # define INT64_MAX 9223372036854775807LL