Make the logic for determining function alignment more explicit.  No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131012 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 128522c..625c963 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -394,6 +394,10 @@
     setLibcallName(RTLIB::EXP2_PPCF128, "exp2l$LDBL128");
   }
 
+  setMinFunctionAlignment(2);
+  if (PPCSubTarget.isDarwin())
+    setPrefFunctionAlignment(4);
+
   computeRegisterProperties();
 }
 
@@ -460,14 +464,6 @@
   return MVT::i32;
 }
 
-/// getFunctionAlignment - Return the Log2 alignment of this function.
-unsigned PPCTargetLowering::getFunctionAlignment(const Function *F) const {
-  if (getTargetMachine().getSubtarget<PPCSubtarget>().isDarwin())
-    return F->hasFnAttr(Attribute::OptimizeForSize) ? 2 : 4;
-  else
-    return 2;
-}
-
 //===----------------------------------------------------------------------===//
 // Node matching predicates, for use by the tblgen matching code.
 //===----------------------------------------------------------------------===//
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index 33daae9..64a57a1 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -364,9 +364,6 @@
                         bool NonScalarIntSafe, bool MemcpyStrSrc,
                         MachineFunction &MF) const;
 
-    /// getFunctionAlignment - Return the Log2 alignment of this function.
-    virtual unsigned getFunctionAlignment(const Function *F) const;
-
   private:
     SDValue getFramePointerFrameIndex(SelectionDAG & DAG) const;
     SDValue getReturnAddrFrameIndex(SelectionDAG & DAG) const;