[NFC] test commit.
Added a comment to explain how to add a PPCISD node.
llvm-svn: 309114
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.h b/llvm/lib/Target/PowerPC/PPCISelLowering.h
index e52e85e..8f97fb4 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.h
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.h
@@ -37,6 +37,14 @@
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,