[Asm] Add debug tracing in table-generated assembly matcher

This adds debug tracing to the table-generated assembly instruction matcher,
enabled by the -debug-only=asm-matcher option.

The changes in the target AsmParsers are to add an MCInstrInfo reference under
a consistent name, so that we can use it from table-generated code. This was
already being used this way for targets that use deprecation warnings, but 5
targets did not have it, and Hexagon had it under a different name to the other
backends.

llvm-svn: 315445

1 files changed, 1 insertions, 2 deletions

diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 3792e10e3eb..1e6c175e41d 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -168,7 +168,6 @@ public:
 };
 
 class ARMAsmParser : public MCTargetAsmParser {
-  const MCInstrInfo &MII;
   const MCRegisterInfo *MRI;
   UnwindContext UC;
 
@@ -581,7 +580,7 @@ public:
 
   ARMAsmParser(const MCSubtargetInfo &STI, MCAsmParser &Parser,
                const MCInstrInfo &MII, const MCTargetOptions &Options)
-    : MCTargetAsmParser(Options, STI), MII(MII), UC(Parser) {
+    : MCTargetAsmParser(Options, STI, MII), UC(Parser) {
     MCAsmParserExtension::Initialize(Parser);
 
     // Cache the MCRegisterInfo.