From: Stefan Pintilie <stefanp@ca.ibm.com>
Date: Wed, 26 Jul 2017 13:44:59 +0000 (+0000)
Subject: [NFC] test commit.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8801df505cc32661dfa47e7faad080cec27d57ac;p=llvm

[NFC] test commit.

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309114 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index e52e85ea765..8f97fb4f6ec 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -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,