Added field noResults to Instruction.
Currently tblgen cannot tell which operands in the operand list are results so
it assumes the first one is a result. This is bad. Ideally we would fix this
by separating results from inputs, e.g. (res R32:$dst),
(ops R32:$src1, R32:$src2). But that's a more distruptive change. Adding
'let noResults = 1' is the workaround to tell tblgen that the instruction does
not produces a result. It works for now since tblgen does not support
instructions which produce multiple results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25017 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenTarget.cpp b/utils/TableGen/CodeGenTarget.cpp
index b6ddd62..25d01fc 100644
--- a/utils/TableGen/CodeGenTarget.cpp
+++ b/utils/TableGen/CodeGenTarget.cpp
@@ -273,6 +273,7 @@
hasCtrlDep = R->getValueAsBit("hasCtrlDep");
hasInFlag = R->getValueAsBit("hasInFlag");
hasOutFlag = R->getValueAsBit("hasOutFlag");
+ noResults = R->getValueAsBit("noResults");
hasVariableNumberOfOperands = false;
DagInit *DI;