Commit Graph

13 Commits

Author SHA1 Message Date
Dan Gohman
63f97201dc Fun x86 encoding tricks: when adding an immediate value of 128,
use a SUB instruction instead of an ADD, because -128 can be
encoded in an 8-bit signed immediate field, while +128 can't be.
This avoids the need for a 32-bit immediate field in this case.

A similar optimization applies to 64-bit adds with 0x80000000,
with the 32-bit signed immediate field.

To support this, teach tablegen how to handle 64-bit constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17 01:33:43 +00:00
Duncan Sands
4520dd2b7b Add <cstdio> include where needed by gcc-4.4.
Patch by Samuel Tardieu.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57291 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-08 07:23:46 +00:00
Chris Lattner
038112a4e0 Change the MemoryBuffer::getFile* methods to take just a pointer to the
start of a filename, not a filename+length.  All clients can produce a
null terminated name, and the system api's require null terminated 
strings anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49041 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01 18:04:03 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:08:44 +00:00
Chris Lattner
3060910e29 remove attributions from utils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45419 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:37:13 +00:00
Chris Lattner
f460165a4c Rewrite the tblgen parser in a recursive descent style, eliminating the bison parser.
This makes the parser much easier to understand, eliminates a ton of global variables,
and gives tblgen nice caret diagnostics.  It is also faster, but tblgen probably doesn't
care about performance.

There are a couple of FIXMEs which I will take care of next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44274 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-22 20:49:04 +00:00
Chuck Rose III
8b0ec64400 Switching back to strtoll. Including config.h. On VStudio builds, this overrides strtoll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44264 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-21 19:36:25 +00:00
Chuck Rose III
0ccb93034a This change does a couple of things. First it gets the Visual Studio builds working.
I added the lexing files to the VStudio projects and removed the .l files from the 
VStudio projects.  There was a problem with use of strtoll in TGLexer.cpp and Chris
suggested switching to strtol, so that's included here.

Additionally, this checkin adds minimal x64 builds to the VStudio builds.  Build issues
related to x64 in the windows specific files for DynamicLibrary.inc and Singals.inc
are worked around, but not ultimately solved.  Binaries used to be stored in

...\win32\{Debug|Release}

but are now kept in

...\win32\bin\{win32|x64}\{Debug|Release}

intermediate files will continue to be stored in the individual project directories under 
win32.  

Some names will likely change in the future to reflect that the vstudio projects
are no longer 32-bit only, but I wanted to get things up and running today so kept away
from bigger restructuring.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44260 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-21 00:37:56 +00:00
Chris Lattner
56a9fcfd1e Record the start of the current token, for use in error reporting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44227 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-19 07:43:52 +00:00
Chris Lattner
c8a9bbcbc7 Add carat diagnostics to tblgen lexer errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44226 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-19 07:38:58 +00:00
Chris Lattner
c1819188b6 minor cleanups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44212 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-18 05:48:46 +00:00
Chris Lattner
6aaca046d2 ensure header is self contained.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44211 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-18 05:25:45 +00:00
Chris Lattner
a805874422 reimplement the tblgen lexer with a simple hand-written lexer. This eliminates
one dependency on flex and gets rid of two ".cvs" files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44210 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-18 02:57:27 +00:00