llvm-svn: 122398

llvm-svn: 120982

support register and register-immediate addressing mode

todo: immediate and register-register addressing mode
llvm-svn: 120407

llvm-svn: 119485

llvm-svn: 116805

llvm-svn: 114788

Patch by Che-Liang Chiou <clchiou@gmail.com>!

llvm-svn: 114294

Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files.

llvm-svn: 59953

ExpandIntegerOperand (LegalizeIntegerTypes.cpp) is needed which is yet to be reworked and submitted. 

llvm-svn: 59617

Changed cout to DOUT, and TODOs to FIXMEs.
Other changes as per coding conventions.

llvm-svn: 51105

A brief description about PIC16:
===============================
PIC16 is an 8-bit microcontroller with only one 8-bit register which is the 
accumulator. All arithmetic/load/store operations are 8-bit only.
The architecture has two address spaces: program and data. The program memory 
is divided into 2K pages and the data memory is divided into banks of 128 byte, with only 80 usable bytes, resulting in an non-contiguous data memory. 

It supports direct data memory access (by specifying the address as part of the instruction) and indirect data and program memory access (in an unorthodox fashion which utilize a 16 bit pointer register). 

Two classes of registers exist: (8-bit class which is only one
accumulator) (16-bit class, which contains one or more 16 bit
pointer(s))

llvm-svn: 51027

llvm-svn: 45418

llvm-svn: 43749

llvm-svn: 41159

- Modifications from the last patch included
  (issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.

llvm-svn: 37461

Subtarget option names must be given in lower case in order to be
recognized. Fixes test/CodeGen/Alpha/ctlz.ll

llvm-svn: 36125

llvm-svn: 33492

llvm-svn: 28378

llvm-svn: 28368

llvm-svn: 26643

llvm-svn: 25678

llvm-svn: 25674

llvm-svn: 24012

llvm-svn: 23903

llvm-svn: 22276

llvm-svn: 21101

llvm-svn: 20048

llvm-svn: 19764

llvm-svn: 18737

llvm-svn: 16482

llvm-svn: 12726

llvm-svn: 11957

llvm-svn: 11834

llvm-svn: 11828