R600: Add a comment that llvm.AMDGPU.trunc is a legacy intrinsic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212218 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/R600/AMDGPUISelLowering.cpp b/lib/Target/R600/AMDGPUISelLowering.cpp
index 60bceaff95494b6af5fd17d3f9ac353582959c62..c200b588f6c727e5d22f5cbb8585615a35ed3fa8 100644 (file)
--- a/lib/Target/R600/AMDGPUISelLowering.cpp
+++ b/lib/Target/R600/AMDGPUISelLowering.cpp
@@ -912,7 +912,7 @@ SDValue AMDGPUTargetLowering::LowerINTRINSIC_WO_CHAIN(SDValue Op,
 
     case AMDGPUIntrinsic::AMDIL_round_nearest: // Legacy name.
       return DAG.getNode(ISD::FRINT, DL, VT, Op.getOperand(1));
-    case AMDGPUIntrinsic::AMDGPU_trunc:
+    case AMDGPUIntrinsic::AMDGPU_trunc: // Legacy name.
       return DAG.getNode(ISD::FTRUNC, DL, VT, Op.getOperand(1));
   }
 }