- Enable x86 isel preprocessing by default unless -fast is specified.
- Also disable isel load folding if -fast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29956 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 9616dc1..ca2651b 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -103,7 +103,7 @@
   PM.add(createUnreachableBlockEliminationPass());
 
   // Install an instruction selector.
-  PM.add(createX86ISelDag(*this));
+  PM.add(createX86ISelDag(*this, Fast));
 
   // Print the instruction selected machine code...
   if (PrintMachineCode)
@@ -168,7 +168,7 @@
   PM.add(createUnreachableBlockEliminationPass());
 
   // Install an instruction selector.
-  PM.add(createX86ISelDag(TM));
+  PM.add(createX86ISelDag(TM, false));
 
   // Print the instruction selected machine code...
   if (PrintMachineCode)