Use isNull instead of getNode() to test for existence of a node, this is cheaper.

[oota-llvm.git] / lib / Target / X86 / X86RegisterInfo.td

diff --git a/lib/Target/X86/X86RegisterInfo.td b/lib/Target/X86/X86RegisterInfo.td
index 85dbcadec4e2ae98b2bdf7247db1666e543161a6..121634f539eb0371388855bdc8c6fbe96c0a5d0b 100644 (file)
--- a/lib/Target/X86/X86RegisterInfo.td
+++ b/lib/Target/X86/X86RegisterInfo.td
@@ -1,4 +1,11 @@
 //===- X86RegisterInfo.td - Describe the X86 Register File ------*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
 //
 // This file describes the X86 Register file, defining the registers themselves,
 // aliases between the registers, and the register classes built out of the
@@ -74,9 +81,9 @@ def R16 : RegisterClass<i16, 2, [AX, CX, DX, BX, SI, DI, BP, SP]> {
   let Methods = [{
     iterator allocation_order_end(MachineFunction &MF) const {
       if (hasFP(MF))     // Does the function dedicate EBP to being a frame ptr?
-       return end()-2;  // If so, don't allocate SP or BP
+        return end()-2;  // If so, don't allocate SP or BP
       else
-       return end()-1;  // If not, just don't allocate SP
+        return end()-1;  // If not, just don't allocate SP
     }
   }];
 }