Commit Graph

14 Commits

Author SHA1 Message Date
Chris Lattner
91c6a822ba The new isel passes all tests, time to start making it go fast.
Also add an easy macro at the top of DAGISelEmitter.cpp to enable
it.  Lets see if I can avoid accidentally turning it on :)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97029 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24 07:06:50 +00:00
Chris Lattner
da272d1a70 Check in the first big step of rewriting DAGISelEmitter to
produce a table based matcher instead of gobs of C++ Code.

Though it's not done yet, the shrinkage seems promising,
the table for the X86 ISel is 75K and still has a lot of 
optimization to come (compare to the ~1.5M of .o generated
the old way, much of which will go away).

The code is currently disabled by default (the #if 0 in
DAGISelEmitter.cpp).  When enabled it generates a dead
SelectCode2 function in the DAGISel Header which will
eventually replace SelectCode.

There is still a lot of stuff left to do, which are
documented with a trail of FIXMEs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-15 08:04:42 +00:00
Sean Callanan
3ac97b386b Added AsmWriterInst.cpp to the CMakeList so that
it builds OK on Visual Studio.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95702 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09 22:29:16 +00:00
Ted Kremenek
55b88096aa Update CMake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29 01:10:25 +00:00
Sean Callanan
8ed9f51663 Table-driven disassembler for the X86 architecture (16-, 32-, and 64-bit
incarnations), integrated into the MC framework.  

The disassembler is table-driven, using a custom TableGen backend to 
generate hierarchical tables optimized for fast decode.  The disassembler 
consumes MemoryObjects and produces arrays of MCInsts, adhering to the 
abstract base class MCDisassembler (llvm/MC/MCDisassembler.h).

The disassembler is documented in detail in

- lib/Target/X86/Disassembler/X86Disassembler.cpp (disassembler runtime)
- utils/TableGen/DisassemblerEmitter.cpp (table emitter)

You can test the disassembler by running llvm-mc -disassemble for i386
or x86_64 targets.  Please let me know if you encounter any problems
with it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91749 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19 02:59:52 +00:00
Daniel Dunbar
405887419f Sketch TableGen disassembler emitter, based on patch by Sean Callanan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89833 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-25 02:13:23 +00:00
Douglas Gregor
74f2ca8c4a De-bork CMake build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 23:20:09 +00:00
Daniel Dunbar
7cab893331 Update CMakeLists.txt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75389 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11 21:53:14 +00:00
Chris Lattner
8070ea3f06 Rename TGSourceMgr -> SourceMgr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 03:41:50 +00:00
Oscar Fuentes
a2ac75d547 CMake: Use libpthread in tblgen when needed. Updated list of source
files for PIC16 target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72277 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-22 20:55:15 +00:00
Douglas Gregor
41e04beed7 Add TGSourceMgr.cpp to CMake build, sort lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-16 17:04:14 +00:00
Ted Kremenek
04a847e706 Add initial implementation of a TableGen backend for converting Clang-warnings
tablegen files to the original .def preprocessor include files. This is my first
TableGen backend; I don't claim that it is awesome.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66971 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13 22:21:17 +00:00
Dan Gohman
3a5797d946 Change how extended types are represented in MVTs. Instead of fiddling
bits, use a union of a SimpleValueType enum and a regular Type*.

This increases the size of MVT on 64-bit hosts from 32 bits to 64 bits.
In most cases, this doesn't add significant overhead. There are places
in codegen that use arrays of MVTs, so these are now larger, but
they're small in common cases.

This eliminates restrictions on the size of integer types and vector
types that can be represented in codegen. As the included testcase
demonstrates, it's now possible to codegen very large add operations.
There are still some complications with using very large types. PR2880
is still open so they can't be used as return values on normal targets,
there are no libcalls defined for very large integers so operations
like multiply and divide aren't supported.

This also introduces a minimal tablgen Type library, capable of
handling IntegerType and VectorType. This will allow parts of
TableGen that don't depend on using SimpleValueType values to handle
arbitrary integer and vector types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58623 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-03 17:56:27 +00:00
Oscar Fuentes
3d01fc7de8 Initial support for the CMake build system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-22 01:08:49 +00:00