- Add "Commutative" property to intrinsics. This allows tblgen to generate the commuted variants for dagisel matching code.
- Mark lots of X86 intrinsics as "Commutative" to allow load folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52353 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenTarget.cpp b/utils/TableGen/CodeGenTarget.cpp
index a76f5cd..9b38647 100644
--- a/utils/TableGen/CodeGenTarget.cpp
+++ b/utils/TableGen/CodeGenTarget.cpp
@@ -404,6 +404,7 @@
std::string DefName = R->getName();
ModRef = WriteMem;
isOverloaded = false;
+ isCommutative = false;
if (DefName.size() <= 4 ||
std::string(DefName.begin(), DefName.begin()+4) != "int_")
@@ -469,6 +470,8 @@
ModRef = WriteArgMem;
else if (Property->getName() == "IntrWriteMem")
ModRef = WriteMem;
+ else if (Property->getName() == "Commutative")
+ isCommutative = true;
else
assert(0 && "Unknown property!");
}