commit 09e1379cd64a82e37baac5b82e4e42f5c8de788f
author Evan Cheng <evan.cheng@apple.com> Wed Aug 01 23:45:51 2007 +0000
committer Evan Cheng <evan.cheng@apple.com> Wed Aug 01 23:45:51 2007 +0000
tree 68d97d3babcc18a54080ecb62f6aec16eee36b50
parent 7031713eacafd02ce263cef8e884676bd4c50894

Mac OS X X86-64 low 4G address not available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40701 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86Subtarget.cpp

diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index 1a75e04..51406c3 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -225,6 +225,7 @@
   // FIXME: this is a known good value for Yonah. How about others?
   , MinRepStrSizeThreshold(128)
   , Is64Bit(is64Bit)
+  , HasLow4GUserAddress(true)
   , TargetType(isELF) { // Default to ELF unless otherwise specified.
 
   // Determine default and user specified characteristics
@@ -285,6 +286,9 @@
     }
   }
 
+  if (TargetType == isDarwin && Is64Bit)
+    HasLow4GUserAddress = false;
+
   if (TargetType == isDarwin ||
       TargetType == isCygwin ||
       TargetType == isMingw  ||