encoder and decoder by using new MRM_ forms.

llvm-svn: 96048

whose opcodes extend into the ModR/M field using the
Form field of the instruction rather than by special
casing each instruction.  Commented out the special
casing of VMCALL, which is the first instruction to use
this special form.  While I was in the neighborhood,
added a few comments for people modifying the Intel
disassembler. 

llvm-svn: 96043

This will work better for the disassembler for modeling things
like lfence/monitor/vmcall etc.

llvm-svn: 95960

matcher is now free of implicit operands!
 - Still need to clean up the code now that we don't to worry about implicit
   operands, and to make it a hard error if an instruction fails to specify all
   of its operands for some reason.

llvm-svn: 95956

	testb	%al, %al                ## <MCInst #2412 TEST8rr
                                        ##   <MCOperand Reg:2>
                                        ##   <MCOperand Reg:2>>
	jne	LBB1_7                  ## <MCInst #938 JNE_1
                                        ##   <MCOperand Expr:(LBB1_7)>>

llvm-svn: 95935

llvm-svn: 95808

llvm-svn: 95802

 - Pretty messy, but we need to rework how we handle tied operands in MCInst
   anyway.

llvm-svn: 95774

backend to not use exceptions at all except in cases
of actual error.

llvm-svn: 95762

Disassembler to take advantage of the refactored
AsmWriterInst.h.  Note removed parser code.

llvm-svn: 95760

operand into the CodeGenInstruction's list of operands,
which is useful for EDEmitter.  (Still working on PR6219)

llvm-svn: 95759

for representing constraint info semantically instead of
as a c expression that will be blatted out to the .inc
file.  Fix X86RecognizableInstr to use this instead of
parsing C code :).

llvm-svn: 95753

implementation.  Also changed the constructor
so that it does not require a Record, making it
usable by the EDEmitter.

llvm-svn: 95715

it builds OK on Visual Studio.

llvm-svn: 95702

out of the AsmWriterEmitter.  This patch does the physical
code movement, but leaves the implementation unchanged. I'll
make any changes necessary to generalize the code in a
separate patch.

llvm-svn: 95697

into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687

llvm-svn: 95627

than DEBUG_VALUE :(  ) into the target indep AsmPrinter.cpp
file.   This allows elimination of the 
NO_ASM_WRITER_BOILERPLATE hack among other things.

llvm-svn: 95177

is still deterministic even amongst ambiguous instructions (eventually ambiguous
match orders will be a hard error, but we aren't there yet).

llvm-svn: 95157

in the order they were declared.

llvm-svn: 94868

disassembly information have a better comment (and
better guard macros).

llvm-svn: 94781

llvm-svn: 94776

enhanced disassembler, and the necessary makefile
rules to build the table for X86.

llvm-svn: 94764

llvm-svn: 94543

be static.  Also made it possible for clients to get it
and no other functions from ...GenAsmMatcher.inc by
defining REGISTERS_ONLY before including GenAsmMatcher.inc.
This sets the stage for target-specific lexers that can
identify registers and return AsmToken::Register as
appropriate.

llvm-svn: 94266

llvm-svn: 94261

Also, DEBUG_VALUE has side effects.

llvm-svn: 93498

the new ParseInstruction method just parses and returns a list of
target operands.  A new MatchInstruction interface is used to
turn the operand list into an MCInst.

This requires new/deleting all the operands, but it also gives 
targets the ability to use polymorphic operands if they want to. 

llvm-svn: 93469

- getToken is modeled after StringRef::split but it can split on multiple
  separator chars and skips leading seperators.
- SplitString is a StringRef::split variant for more than 2 elements with the
  same behaviour as getToken.

llvm-svn: 93161

llvm-svn: 93040

llvm-svn: 93030

memcpy, memset and other intrinsics that only access their arguments
to be readnone if the intrinsic's arguments all point to local memory.
This improves the testcase in the README to readonly, but it could in
theory be made readnone, however this would involve more sophisticated
analysis that looks through the memcpy.

llvm-svn: 92829

uses several kinds of opcode values which are not declared within
that enum. This fixes PR5946.

llvm-svn: 92794

Add an !eq() operator to TableGen.  It operates on strings only.
Use !cast<string>() to compare other types of objects.

llvm-svn: 92754

Have TableGen emit code that uses dbgs() rather than errs().

llvm-svn: 92738

clear what information these functions are actually using.

This is also a micro-optimization, as passing a SDNode * around is
simpler than passing a { SDNode *, int } by value or reference.

llvm-svn: 92564

llvm-svn: 92521

verifying that the special case does not occur.

llvm-svn: 92504

for a refactoring I'm working on.

llvm-svn: 92503

llvm-svn: 92392