[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/AMDGPU/AsmParser/AMDGPUAsmParser.cpp b/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
index fa7157bb645..73889e6b8af 100644
--- a/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
+++ b/llvm/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
@@ -807,7 +807,6 @@ public:
 };
 
 class AMDGPUAsmParser : public MCTargetAsmParser {
-  const MCInstrInfo &MII;
   MCAsmParser &Parser;
 
   unsigned ForcedEncodingSize = 0;
@@ -855,7 +854,7 @@ public:
   AMDGPUAsmParser(const MCSubtargetInfo &STI, MCAsmParser &_Parser,
                const MCInstrInfo &MII,
                const MCTargetOptions &Options)
-      : MCTargetAsmParser(Options, STI), MII(MII), Parser(_Parser) {
+      : MCTargetAsmParser(Options, STI, MII), Parser(_Parser) {
     MCAsmParserExtension::Initialize(Parser);
 
     if (getFeatureBits().none()) {