[llvm] r309114 - [NFC] test commit.

[Stefan Pintilie via llvm-commits]

Author: stefanp
Date: Wed Jul 26 06:44:59 2017
New Revision: 309114

URL: http://llvm.org/viewvc/llvm-project?rev=309114&view=rev
Log:
[NFC] test commit.

Added a comment to explain how to add a PPCISD node.

Modified:
    llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h

Modified: llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h?rev=309114&r1=309113&r2=309114&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCISelLowering.h Wed Jul 26 06:44:59 2017
@@ -37,6 +37,14 @@ namespace llvm {
 
   namespace PPCISD {
 
+    // When adding a NEW PPCISD node please add it to the correct position in
+    // the enum. The order of elements in this enum matters!
+    // Values that are added after this entry:
+    //     STBRX = ISD::FIRST_TARGET_MEMORY_OPCODE
+    // are considerd memory opcodes and are treated differently than entries
+    // that come before it. For example, ADD or MUL should be placed before
+    // the ISD::FIRST_TARGET_MEMORY_OPCODE while a LOAD or STORE should come
+    // after it.
     enum NodeType : unsigned {
       // Start the numbering where the builtin ops and target ops leave off.
       FIRST_NUMBER = ISD::BUILTIN_OP_END,