Add support for naming the destination of a "set" in a pattern
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7748 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/InstrSelectorEmitter.cpp b/utils/TableGen/InstrSelectorEmitter.cpp
index 153f27e..d9f333b 100644
--- a/utils/TableGen/InstrSelectorEmitter.cpp
+++ b/utils/TableGen/InstrSelectorEmitter.cpp
@@ -138,6 +138,7 @@
if (!Tree->getChild(0)->isLeaf())
error("Arg #0 of set should be a register or register class!");
Result = Tree->getChild(0)->getValueRecord();
+ ResultName = Tree->getChildName(0);
Tree = Tree->getChild(1);
}
}
@@ -895,6 +896,9 @@
for (unsigned i = 0, e = P->getNumArgs(); i != e; ++i)
if (P->getArgName(i) == ArgName)
return Operands[i].second + "->Val";
+
+ if (ArgName == P->getResultName())
+ return "NewReg";
P->error("Pattern does not define a value named $" + ArgName + "!");
return "";
}