[compiler-rt] [compiler-rt] Simplify and rename of operator_new_size_type (PR #83912)

[Alexander Richardson via llvm-commits]

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@@ -191,15 +191,10 @@ typedef uptr OFF_T;
 #endif
 typedef u64  OFF64_T;
 
-#if (SANITIZER_WORDSIZE == 64) || SANITIZER_APPLE
-typedef uptr operator_new_size_type;
+#ifdef __SIZE_TYPE__
+typedef __SIZE_TYPE__ usize;
 #else
-# if defined(__s390__) && !defined(__s390x__)
-// Special case: 31-bit s390 has unsigned long as size_t.
-typedef unsigned long operator_new_size_type;
-# else
-typedef u32 operator_new_size_type;
-# endif
+typedef uptr usize;
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arichardson wrote:

Looks like it's correct: https://godbolt.org/z/rjnhWeW6v

https://github.com/llvm/llvm-project/pull/83912