From: James Henderson <jh7370@my.bristol.ac.uk>
Date: Thu, 26 Jul 2018 15:54:53 +0000 (+0000)
Subject: Revert r338027 to pacify build bot
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ec700d4f8fc933ffb67fe75f2cfd4a208d2e7618;p=llvm

Revert r338027 to pacify build bot


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338035 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 1dae469958f..038ad00bd60 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -613,10 +613,10 @@ void raw_fd_ostream::write_impl(const char *Ptr, size_t Size) {
   assert(FD >= 0 && "File already closed.");
   pos += Size;
 
-  // The maximum write size is limited to INT32_MAX. A write
-  // greater than SSIZE_MAX is implementation-defined in POSIX,
-  // and Windows _write requires 32 bit input.
-  size_t MaxWriteSize = INT32_MAX;
+  // The maximum write size is limited to SSIZE_MAX because a write
+  // greater than SSIZE_MAX is implementation-defined in POSIX.
+  // Since SSIZE_MAX is not portable, we use SIZE_MAX >> 1 instead.
+  size_t MaxWriteSize = SIZE_MAX >> 1;
 
 #if defined(__linux__)
   // It is observed that Linux returns EINVAL for a very large write (>2G).