Only run MF.verify() with EXPENSIVE_CHECKS=1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140441 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp
index 6bc349f..23b0716 100644
--- a/lib/Target/X86/X86FrameLowering.cpp
+++ b/lib/Target/X86/X86FrameLowering.cpp
@@ -1423,7 +1423,7 @@
   checkMBB->addSuccessor(allocMBB);
   checkMBB->addSuccessor(&prologueMBB);
 
-#ifndef NDEBUG
+#ifdef XDEBUG
   MF.verify();
 #endif
 }
diff --git a/test/CodeGen/X86/segmented-stacks.ll b/test/CodeGen/X86/segmented-stacks.ll
index 4a76874e..3f0067e 100644
--- a/test/CodeGen/X86/segmented-stacks.ll
+++ b/test/CodeGen/X86/segmented-stacks.ll
@@ -1,8 +1,5 @@
 ; RUN: llc < %s -mtriple=i686-linux -segmented-stacks | FileCheck %s -check-prefix=X32
 ; RUN: llc < %s -mtriple=x86_64-linux  -segmented-stacks | FileCheck %s -check-prefix=X64
-;
-; X86FrameLowering::adjustForSegmentedStacks is inserting code after a RET.
-; XFAIL: *
 
 ; Just to prevent the alloca from being optimized away
 declare void @dummy_use(i32*, i32)