[llvm-commits] [PATCH] TableGen backend support to express relations between instruction

[Jakob Stoklund Olesen]

On Oct 19, 2012, at 9:32 AM, Jyotsna Verma <jverma at codeaurora.org> wrote:

> <0001-Add-TableGen-support-to-create-relationship-maps-bet.patch>

--- a/utils/TableGen/TableGen.cpp
+++ b/utils/TableGen/TableGen.cpp
@@ -102,6 +102,7 @@ bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) {
     break;
   case GenInstrInfo:
     EmitInstrInfo(Records, OS);
+    EmitMapTable(Records, OS);
     break;
   case GenCallingConv:
     EmitCallingConv(Records, OS);

Please add this call inside EmitInstrInfo.

+  OS << "uint16_t "<<InstrMapDesc.getName();
+  // Number of columns in the table are NumCol+1 because key instructions are
+  // emitted as first column.
+  OS << "Table[]["<< NumCol+1 << "] = {\n";

Const tables, please.

+  OS << "int16_t "<< InstrMapDesc.getName() << "(uint16_t Opcode";

Opcodes are in the range 0-64K. They  won't fit in an int16_t.

/jakob