Add an instruction deprecation feature to TableGen.

The 'Deprecated' class allows you to specify a SubtargetFeature that the
instruction is deprecated on.

The 'ComplexDeprecationPredicate' class allows you to define a custom
predicate that is called to check for deprecation.
For example:
  ComplexDeprecationPredicate<"MCR">

would mean you would have to define the following function:
  bool getMCRDeprecationInfo(MCInst &MI, MCSubtargetInfo &STI,
                             std::string &Info)

Which returns 'false' for not deprecated, and 'true' for deprecated
and store the warning message in 'Info'.

The MCTargetAsmParser constructor was chaned to take an extra argument of
the MCInstrInfo class, so out-of-tree targets will need to be changed.

llvm-svn: 190598

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/tools/llvm-mc/llvm-mc.cpp b/llvm/tools/llvm-mc/llvm-mc.cpp
index 482873748a3..7ec2bba0f9a 100644
--- a/llvm/tools/llvm-mc/llvm-mc.cpp
+++ b/llvm/tools/llvm-mc/llvm-mc.cpp
@@ -319,10 +319,10 @@ static int AsLexInput(SourceMgr &SrcMgr, MCAsmInfo &MAI, tool_output_file *Out)
 
 static int AssembleInput(const char *ProgName, const Target *TheTarget, 
                          SourceMgr &SrcMgr, MCContext &Ctx, MCStreamer &Str,
-                         MCAsmInfo &MAI, MCSubtargetInfo &STI) {
+                         MCAsmInfo &MAI, MCSubtargetInfo &STI, MCInstrInfo &MCII) {
   OwningPtr<MCAsmParser> Parser(createMCAsmParser(SrcMgr, Ctx,
                                                   Str, MAI));
-  OwningPtr<MCTargetAsmParser> TAP(TheTarget->createMCAsmParser(STI, *Parser));
+  OwningPtr<MCTargetAsmParser> TAP(TheTarget->createMCAsmParser(STI, *Parser, MCII));
   if (!TAP) {
     errs() << ProgName
            << ": error: this target does not support assembly parsing.\n";
@@ -459,7 +459,7 @@ int main(int argc, char **argv) {
     Res = AsLexInput(SrcMgr, *MAI, Out.get());
     break;
   case AC_Assemble:
-    Res = AssembleInput(ProgName, TheTarget, SrcMgr, Ctx, *Str, *MAI, *STI);
+    Res = AssembleInput(ProgName, TheTarget, SrcMgr, Ctx, *Str, *MAI, *STI, *MCII);
     break;
   case AC_MDisassemble:
     assert(IP && "Expected assembly output");