[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, 3 insertions, 2 deletions

diff --git a/llvm/lib/MC/MCParser/MCTargetAsmParser.cpp b/llvm/lib/MC/MCParser/MCTargetAsmParser.cpp
index 64ac82a6c66..a0c06c9d501 100644
--- a/llvm/lib/MC/MCParser/MCTargetAsmParser.cpp
+++ b/llvm/lib/MC/MCParser/MCTargetAsmParser.cpp
@@ -13,8 +13,9 @@
 using namespace llvm;
 
 MCTargetAsmParser::MCTargetAsmParser(MCTargetOptions const &MCOptions,
-                                     const MCSubtargetInfo &STI)
-  : MCOptions(MCOptions), STI(&STI) {}
+                                     const MCSubtargetInfo &STI,
+                                     const MCInstrInfo &MII)
+    : MCOptions(MCOptions), STI(&STI), MII(MII) {}
 
 MCTargetAsmParser::~MCTargetAsmParser() = default;