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.

llvm-svn: 57663

 - It turns out this is enough to completely break dependency file
   (.d) usage (at least for my gmake).

llvm-svn: 57030

 - Fixes bug in dependency inclusions where make with unspecified
   target wouldn't include dependency files, eek!

llvm-svn: 57026

runnable on the build machine.

There are a few bits that need built for the build environment (TableGen).
This patch builds those bits, and the associated libraries, for the build
environment as well as the (usual) host environment.

Thanks to Eric C. and Devang P. for pre-commit review.

llvm-svn: 56975

disabled until issues with gcc 4.1 on linux 32-bit are resolved.

llvm-svn: 55636

llvm-svn: 55628

support it.

llvm-svn: 55557

llvm-svn: 55506

the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.

llvm-svn: 54751

polution problems from system headers.  Patch by Nathan Keynes!

llvm-svn: 52682

llvm-svn: 52027

llvm-svn: 51795

llvm-svn: 51775

Fix a bunch of 80col violations that arose from the Create API change. Tweak makefile targets to find these better.

llvm-svn: 51143

Patch by Erick Tryzelaar!

llvm-svn: 48149

llvm-svn: 47671

llvm-svn: 47574

dependencies in makefile, and fix llvm_cv_no_link_all_option
on darwin.

Patch by Shantonu Sen, more info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2008-February/012410.html

llvm-svn: 46760

directories.  Patch by Sam Bishop.

llvm-svn: 46453

output.  Patch contributed by Sam Bishop!

llvm-svn: 46432

This fixes PR1927

This should be pulled into llvm 2.2.

llvm-svn: 46245

llvm-svn: 46032

fiends. Change Makefile.ocaml to not touch CFLAGS.

llvm-svn: 45663

Don't include system headers in the .d files.
Don't use $@ in the makefile rules, as there are two possible targets it could resolve to: use the one that we need explicitly.

llvm-svn: 45473

llvm-svn: 45416

llvm-svn: 42344

Fix -include line so it doesn't reference /dev/null

llvm-svn: 40429

produces warning from make about bad timestamp on /dev/null

Patch by Holger Schurig.

llvm-svn: 40426

Patch by Benoit Boissinot. Thanks, Benoit!

llvm-svn: 38490

put into the CPP.Defines variable. Seems the convention was corrupted with
various changes made. It is important to get command line parameters into the
right variable because things like llvm-config and sub-makefiles depend on it.

llvm-svn: 38486

llvm-svn: 37800

llvm-svn: 37798

--enable-expensive-checks allows the developer to enable runtime
checking that can greatly increase compile time.  Currently it only
turns on _GLIBCXX_DEBUG.  Other expensive debugging checks added later
should be controlled by this configure option.

This patch also updates llvm-config with a --cppflags option to inform
llvm-gcc how to build itself so that it is compatible with an llvm that
was built with _GLIBCXX_DEBUG.

llvm-svn: 37777

Merged from the release_20 branch.

llvm-svn: 37188

llvm-svn: 36651

llvm-svn: 36650

target for tabs checking.

llvm-svn: 36146

llvm-svn: 36032

Patch by Scott Michel.

llvm-svn: 35826

Make the sys::Path::getFileStatus function more efficient by having it
return a pointer to the FileStatus structure rather than copy it. Adjust
uses of the function accordingly. Also, fix some memory issues in sys::Path.

llvm-svn: 35476