Change the 'isStore' inferrer to look for 'SDNPMayStore'

instead of "ISD::STORE".  This allows us to mark target-specific dag
nodes as storing (such as ppc byteswap stores).  This allows us to remove
more explicit isStore flags from the .td files.

Finally, add a warning for when a .td file contains an explicit 
isStore and tblgen is able to infer it.

llvm-svn: 45654

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
index 52610cfaa4c..5a826cd0f18 100644
--- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -317,6 +317,8 @@ SDNodeInfo::SDNodeInfo(Record *R) : Def(R) {
       Properties |= 1 << SDNPInFlag;
     } else if (PropList[i]->getName() == "SDNPOptInFlag") {
       Properties |= 1 << SDNPOptInFlag;
+    } else if (PropList[i]->getName() == "SDNPMayStore") {
+      Properties |= 1 << SDNPMayStore;
     } else {
       cerr << "Unknown SD Node property '" << PropList[i]->getName()
            << "' on node '" << R->getName() << "'!\n";