Access the TargetLoweringInfo from the TargetMachine object instead of caching it. The TLI may change between functions. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184349 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index 1a6b62b..1885af5 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -396,12 +396,12 @@
     // removed from the parent invoke(s). This could happen when a landing
     // pad is shared by multiple invokes and is also a target of a normal
     // edge from elsewhere.
-    addPass(createSjLjEHPreparePass(TM->getTargetLowering()));
+    addPass(createSjLjEHPreparePass(TM));
     // FALLTHROUGH
   case ExceptionHandling::DwarfCFI:
   case ExceptionHandling::ARM:
   case ExceptionHandling::Win64:
-    addPass(createDwarfEHPass(TM->getTargetLowering()));
+    addPass(createDwarfEHPass(TM));
     break;
   case ExceptionHandling::None:
     addPass(createLowerInvokePass(TM->getTargetLowering()));
@@ -422,7 +422,7 @@
 /// Add common passes that perform LLVM IR to IR transforms in preparation for
 /// instruction selection.
 void TargetPassConfig::addISelPrepare() {
-  addPass(createStackProtectorPass(getTargetLowering()));
+  addPass(createStackProtectorPass(TM));
 
   addPreISel();