Reland "Change the X86 datalayout to add three address spaces
 for 32 bit signed, 32 bit unsigned, and 64 bit pointers."
This reverts 57076d3199fc2b0af4a3736b7749dd5462cacda5.

Original review at https://reviews.llvm.org/D64931.
Review for added fix at https://reviews.llvm.org/D66843.

llvm-svn: 371568
diff --git a/llvm/test/ThinLTO/X86/crash_debuginfo.ll b/llvm/test/ThinLTO/X86/crash_debuginfo.ll
index 3140326..d0d63f2 100644
--- a/llvm/test/ThinLTO/X86/crash_debuginfo.ll
+++ b/llvm/test/ThinLTO/X86/crash_debuginfo.ll
@@ -11,7 +11,7 @@
 
 ; ModuleID = 'test/ThinLTO/X86/crash_debuginfo.ll'
 source_filename = "test/ThinLTO/X86/crash_debuginfo.ll"
-target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.7.0"
 
 define void @foo(i32 %arg) {