[llvm] r272086 - [AArch64][RegisterBankInfo] Use the generic implementation of copyCost.

[Quentin Colombet via llvm-commits]

Author: qcolombet
Date: Tue Jun  7 20:24:00 2016
New Revision: 272086

URL: http://llvm.org/viewvc/llvm-project?rev=272086&view=rev
Log:
[AArch64][RegisterBankInfo] Use the generic implementation of copyCost.

Long term we may want to give high cost at FPR to/from GPR copies.

Modified:
    llvm/trunk/lib/Target/AArch64/AArch64RegisterBankInfo.cpp

Modified: llvm/trunk/lib/Target/AArch64/AArch64RegisterBankInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64RegisterBankInfo.cpp?rev=272086&r1=272085&r2=272086&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64RegisterBankInfo.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64RegisterBankInfo.cpp Tue Jun  7 20:24:00 2016
@@ -71,7 +71,8 @@ unsigned AArch64RegisterBankInfo::copyCo
   // Will introduce other hooks for different size:
   // * extract cost.
   // * build_sequence cost.
-  return 0;
+  // TODO: Add more accurate cost for FPR to/from GPR.
+  return RegisterBankInfo::copyCost(A, B, Size);
 }
 
 const RegisterBank &AArch64RegisterBankInfo::getRegBankFromRegClass(