Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.
Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.
This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52943 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/AsmWriterEmitter.cpp b/utils/TableGen/AsmWriterEmitter.cpp
index 8fbb2cf..18b0759 100644
--- a/utils/TableGen/AsmWriterEmitter.cpp
+++ b/utils/TableGen/AsmWriterEmitter.cpp
@@ -363,7 +363,7 @@
for (unsigned i = 0, e = NumberedInstructions.size(); i != e; ++i) {
const AsmWriterInst *Inst = getAsmWriterInstByID(i);
- if (Inst == 0) continue; // PHI, INLINEASM, LABEL, etc.
+ if (Inst == 0) continue; // PHI, INLINEASM, DBG_LABEL, etc.
std::string Command;
if (Inst->Operands.empty())
@@ -641,7 +641,7 @@
<< " O << \"\\t\";\n"
<< " printInlineAsm(MI);\n"
<< " return true;\n"
- << " } else if (MI->getOpcode() == TargetInstrInfo::LABEL) {\n"
+ << " } else if (MI->isLabel()) {\n"
<< " printLabel(MI);\n"
<< " return true;\n"
<< " } else if (MI->getOpcode() == TargetInstrInfo::DECLARE) {\n"