X86: Clean up pass initialization

Summary:
- Remove redundant initializations from pass constructors that were
  already being initialized by LLVMInitializeX86Target().

- Add initialization function for the FPS pass.

Reviewers: craig.topper

Reviewed By: craig.topper

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63218

llvm-svn: 363221

1 files changed, 1 insertions, 4 deletions

diff --git a/llvm/lib/Target/X86/X86CallFrameOptimization.cpp b/llvm/lib/Target/X86/X86CallFrameOptimization.cpp
index b38e2bbe492..4df849a2e14 100644
--- a/llvm/lib/Target/X86/X86CallFrameOptimization.cpp
+++ b/llvm/lib/Target/X86/X86CallFrameOptimization.cpp
@@ -59,10 +59,7 @@ namespace {
 
 class X86CallFrameOptimization : public MachineFunctionPass {
 public:
-  X86CallFrameOptimization() : MachineFunctionPass(ID) {
-    initializeX86CallFrameOptimizationPass(
-        *PassRegistry::getPassRegistry());
-  }
+  X86CallFrameOptimization() : MachineFunctionPass(ID) { }
 
   bool runOnMachineFunction(MachineFunction &MF) override;