Enable GlobalMerge on darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128183 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/ARMGlobalMerge.cpp

@@ -53,7 +53,6 @@
 
 #define DEBUG_TYPE "arm-global-merge"
 #include "ARM.h"
-#include "ARMTargetMachine.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/Attributes.h"
 #include "llvm/Constants.h"
@@ -168,11 +167,6 @@ bool ARMGlobalMerge::doInitialization(Module &M) {
   unsigned MaxOffset = TLI->getMaximalGlobalOffset();
   bool Changed = false;
 
-  // Disable this pass on darwin. The debugger is not yet ready to extract
-  // variable's  info from a merged global.
-  if (TLI->getTargetMachine().getSubtarget<ARMSubtarget>().isTargetDarwin())
-    return false;
-
   // Grab all non-const globals.
   for (Module::global_iterator I = M.global_begin(),
          E = M.global_end(); I != E; ++I) {

test/CodeGen/ARM/2011-01-19-MergedGlobalDbg.ll

@@ -1,5 +1,5 @@
 ; RUN: llc < %s | FileCheck %s
-; XFAIL: *
+
 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32"
 target triple = "thumbv7-apple-darwin10"
 

test/CodeGen/ARM/global-merge.ll

@@ -1,5 +1,4 @@
 ; RUN: llc < %s -mtriple=thumb-apple-darwin | FileCheck %s
-; XFAIL: *
 ; Test the ARMGlobalMerge pass.  Use -march=thumb because it has a small
 ; value for the maximum offset (127).