Give TargetInfo a new IntPtrType to hold the intptr_t type for

a target.

Make Preprocessor.cpp define a new __INTPTR_TYPE__ macro based on this.

On linux/32, set intptr_t to int, instead of long.  This fixes PR3563.

llvm-svn: 64495

1 files changed, 2 insertions, 19 deletions

diff --git a/clang/lib/Headers/stdint.h b/clang/lib/Headers/stdint.h
index 3eb72bb57b5..9e5bfd700f8 100644
--- a/clang/lib/Headers/stdint.h
+++ b/clang/lib/Headers/stdint.h
@@ -70,25 +70,8 @@ typedef uint64_t uint_fast64_t;
 
 /* C99 7.18.1.4 Integer types capable of holding object pointers.
  */
-#if (1LL << (__POINTER_WIDTH__-1))-1 == __LONG_MAX__
-/* If the pointer size is equal to long, use long.  This is for compatibility
- * with many systems which just use long and expect it to work in 32-bit and
- * 64-bit mode.  If long is not suitable, we use a fixed size type below.
- */
-typedef long          intptr_t;
-typedef unsigned long uintptr_t;
-#elif __POINTER_WIDTH__ == 64
-typedef int64_t  intptr_t;
-typedef uint64_t uintptr_t;
-#elif __POINTER_WIDTH__ == 32
-typedef int32_t  intptr_t;
-typedef uint32_t uintptr_t;
-#elif __POINTER_WIDTH__ == 16
-typedef int16_t  intptr_t;
-typedef uint16_t uintptr_t;
-#else
-#error "unknown or unset pointer width!"
-#endif
+typedef __INTPTR_TYPE__          intptr_t;
+typedef unsigned __INTPTR_TYPE__ uintptr_t;
 
 /* C99 7.18.1.5 Greatest-width integer types.
  */