Remove a whole bunch of horrible hacky code that was used to promote allocas
whose addresses where used by trivial phi nodes and select instructions.  This
is now performed by the instcombine pass, which is more powerful, is much
simpler, and is faster.  This allows the deletion of a bunch of code, two
FIXME's and two gotos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16406 91177308-0d34-0410-b5e6-96231b3b80d8

Instcombine now helps out with these

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16405 91177308-0d34-0410-b5e6-96231b3b80d8

Make instruction combining a bit more aggressive in the face of volatile
loads, and implement two new transforms: InstCombine/load.ll:test[56].

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16404 91177308-0d34-0410-b5e6-96231b3b80d8

Add two new testcases that instcombine should handle

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16403 91177308-0d34-0410-b5e6-96231b3b80d8

Minor correction to Signals implementation.

Patch submitted by Jeff Cohen. Thanks Jeff!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16401 91177308-0d34-0410-b5e6-96231b3b80d8

Add comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16400 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the inliner to always delete any edges from the external call node to
a function being deleted.  Due to optimizations done while inlining, there
can be edges from the external call node to a function node that were not
apparent any longer.

This fixes the compiler crash while compiling 175.vpr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16399 91177308-0d34-0410-b5e6-96231b3b80d8

Add CallGraphNode::removeAnyCallEdgeTo method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16398 91177308-0d34-0410-b5e6-96231b3b80d8

Use the /dev/zero device as the device on which the pages are mapped.

Patch contributed by Henrik Bach. Thanks Henrik!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16397 91177308-0d34-0410-b5e6-96231b3b80d8

Porting of Unix implementation to Win32.

Patch contributed by Jeff Cohen. Thanks Jeff!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16396 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of file descriptor leak in create_file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16395 91177308-0d34-0410-b5e6-96231b3b80d8

Misha implemented the ModuleProvider interface back in 9/18/2003.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16394 91177308-0d34-0410-b5e6-96231b3b80d8

Provide initial docs for CallGraphSCCPass's, and fix several grammar-o's and
other problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16393 91177308-0d34-0410-b5e6-96231b3b80d8

Make this HTML 4.01 strict
Update to reflect changes to the 'Register' tblgen class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16392 91177308-0d34-0410-b5e6-96231b3b80d8

Don't include libtool "object" files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16391 91177308-0d34-0410-b5e6-96231b3b80d8

Convert this pass to be a CallGraphSCCPass instead of a Pass, which eliminates
the worklist and makes it more efficient.  This does not change functionality
at all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16390 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to remove the Select instruction as well

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16389 91177308-0d34-0410-b5e6-96231b3b80d8

When changing a function, make sure to update the CallGraphNode for the
function, not just the CallGraph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16388 91177308-0d34-0410-b5e6-96231b3b80d8

Implement new changeFunction method, nuke a never implemented one.
Add comments and doxygenify others.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16387 91177308-0d34-0410-b5e6-96231b3b80d8

Implement new changeFunction method, nuke a never implemented one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16386 91177308-0d34-0410-b5e6-96231b3b80d8

Changed the distclean target to handle the new location of config.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16385 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo in comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16384 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure critical sections are entered before trying to leave them.
Add some additional commentary about the workings of this module.

Patch contributed by Jeff Cohen. Thanks Jeff!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16383 91177308-0d34-0410-b5e6-96231b3b80d8

Adjust the license files based on the actual content of llvm and llvm-test
after llvm-test was split out of llvm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16382 91177308-0d34-0410-b5e6-96231b3b80d8

Allow "bc" as suffix for bytecode files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16381 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the signals interface for Win32.

Patch provided by Jeff Cohen. Thanks Jeff!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16380 91177308-0d34-0410-b5e6-96231b3b80d8

Add dependencies so that project tools are recompiled if LLVM libraries
are updated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16378 91177308-0d34-0410-b5e6-96231b3b80d8

Add a newline

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16369 91177308-0d34-0410-b5e6-96231b3b80d8

Convert code to compile with vc7.1.

Patch contributed by Paolo Invernizzi. Thanks Paolo!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16368 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to update the list end when an element is removed from it.  This
fixes a crash in LICM when processing povray.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16367 91177308-0d34-0410-b5e6-96231b3b80d8

Add some assertions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16366 91177308-0d34-0410-b5e6-96231b3b80d8

Stacker compiler library doesn't need to be shared and it can cause
problems on some platforms (like Solaris).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16365 91177308-0d34-0410-b5e6-96231b3b80d8

Attempt to solve the libtool problem on Solaris.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16364 91177308-0d34-0410-b5e6-96231b3b80d8

Patches to make this file actually compile under windows.

Patches submitted by Jeff Cohen. Thanks Jeff!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16362 91177308-0d34-0410-b5e6-96231b3b80d8

Initial version of the SysConfig abstraction for Win32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16361 91177308-0d34-0410-b5e6-96231b3b80d8

First version of a common header file for Win32 implementations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16360 91177308-0d34-0410-b5e6-96231b3b80d8

Initial implementation of the Process abstraction for Win32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16359 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the interface to ReleaseRWX to take MemoryBlock& not Memory&

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16356 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in the previous checkin that broke 255.vortex

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16355 91177308-0d34-0410-b5e6-96231b3b80d8

When creating constant arrays check that the initializer vector is the
same size as the one in the array type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16354 91177308-0d34-0410-b5e6-96231b3b80d8

Fit long lines into 80 cols via creative space elimination

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16353 91177308-0d34-0410-b5e6-96231b3b80d8

Wrap long line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16352 91177308-0d34-0410-b5e6-96231b3b80d8

Targets are independent of each other, so compile them in parallel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16351 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16349 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to update alias analysis information as we transform the function.
This fixes PR420 and Regression/Transforms/LICM/2004-09-14-AliasAnalysisInvalidate.llx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16348 91177308-0d34-0410-b5e6-96231b3b80d8

If given an AliasSetTracker object to update, update it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16347 91177308-0d34-0410-b5e6-96231b3b80d8

Add an optional argument to PromoteMemToReg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16346 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for PR420

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16345 91177308-0d34-0410-b5e6-96231b3b80d8

Implement an AliasSetTracker::copyValue method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16344 91177308-0d34-0410-b5e6-96231b3b80d8

Add an AliasSetTracker::copyValue method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16343 91177308-0d34-0410-b5e6-96231b3b80d8

The Sparc linking .so problem extends to the sample project as well

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16342 91177308-0d34-0410-b5e6-96231b3b80d8

Add notes about some buggy passes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16339 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16338 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a long-dead pass.  Actually, this pass was never used at all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16337 91177308-0d34-0410-b5e6-96231b3b80d8

Fix compilation warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16336 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a compilation error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16335 91177308-0d34-0410-b5e6-96231b3b80d8

Okay, the list of link-time passes wasn't such a hot idea. Its prone to
error. We'll strategize on this when we have multiple front ends to deal
with. For now llvm-ld just runs a standard set of transforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16333 91177308-0d34-0410-b5e6-96231b3b80d8

Don't print newlines between passes in the pass list.
Note to self: sentences end with ".", not "...".
Note to reid: sentences end with ".", not "".   :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16332 91177308-0d34-0410-b5e6-96231b3b80d8

Don't print newlines between each library in the deplibs list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16331 91177308-0d34-0410-b5e6-96231b3b80d8

Revamp the Register class, and allow the use of the RegisterGroup class to
specify aliases directly in register definitions.

Patch contributed by Jason Eckhardt!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16330 91177308-0d34-0410-b5e6-96231b3b80d8

Adjust to #include movage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16329 91177308-0d34-0410-b5e6-96231b3b80d8

Update to reflect stkrc's new optimization capabilities.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16327 91177308-0d34-0410-b5e6-96231b3b80d8

Support substitution options for the W, M, and f options.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16326 91177308-0d34-0410-b5e6-96231b3b80d8

Support the -WX, -f -M options as pass throughs
Change force option from -f to -F
Support the -strip option
Make changes to reflect different interface in sys::Program

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16325 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the GetLibraryPath function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16323 91177308-0d34-0410-b5e6-96231b3b80d8

Add the GetLibraryPath method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16322 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for the link-time pass list to Modules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16321 91177308-0d34-0410-b5e6-96231b3b80d8

Sparc cannot link shared objects (libtool issue) which affects Stacker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16320 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify the sys::Memory interface per Chris' request.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16319 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify the sys::Memory interface per Chris' request.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16318 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up the interface and implementation of sys::Program so that it is
cleanly dissociated from the sys::Path class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16315 91177308-0d34-0410-b5e6-96231b3b80d8

Changes to make this work with Jason's patch.  I checked this by hand, but
would appreciate if others would also look at this to make sure I didn't
botch something obvious

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16312 91177308-0d34-0410-b5e6-96231b3b80d8

Change banner name to reflect actual program this Makefile is for.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16311 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of compile warning by having llvmExecve return the result of its
call to executeProgram.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16306 91177308-0d34-0410-b5e6-96231b3b80d8

Initial implementation of llvm-ld: stolen from gccld.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16305 91177308-0d34-0410-b5e6-96231b3b80d8

Add LLEE into compilation, but not for Sparc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16304 91177308-0d34-0410-b5e6-96231b3b80d8

Excise the -L option since llvm-link should not do library searches. It
just links bytecode files together.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16303 91177308-0d34-0410-b5e6-96231b3b80d8

Excise dependent library linking at Chris' request. llvm-link is intended
to provide only the simplest linking of LLVM modules without trying to be
complete. Dependent library linking will be added to gccld or its successor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16302 91177308-0d34-0410-b5e6-96231b3b80d8

Squelch compilation warnings on Sparc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16301 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix grammar
* Convert tabs to spaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16300 91177308-0d34-0410-b5e6-96231b3b80d8

Fix filename: Printer.cpp has become X86AsmPrinter.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16299 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak doxygen, according to Reid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16298 91177308-0d34-0410-b5e6-96231b3b80d8

Fix code spacing/alignment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16297 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the replace method to assert if an item was erased from the set but not
found in the vector. Previously, it just ignored this condition.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16296 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the file header to reflect the new "examples" home for the file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16295 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo: sterror -> strerror

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16294 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the dynamic lib suffix on Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16293 91177308-0d34-0410-b5e6-96231b3b80d8

Provide initial implementations of Memory and Process concepts for various
platforms.
Implement GetLLVMSuffix function for the Path concept.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16292 91177308-0d34-0410-b5e6-96231b3b80d8

Provide a generic Unix implementation of the Memory concept.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16291 91177308-0d34-0410-b5e6-96231b3b80d8

Provide a generic unix implementation of the Process abstraction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16290 91177308-0d34-0410-b5e6-96231b3b80d8

Implemented support for detecting file types by magic number, stripping
path and suffix to leave basename, and getting the DLL suffix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16289 91177308-0d34-0410-b5e6-96231b3b80d8

Implementation of Process concept for SUSv2 platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16288 91177308-0d34-0410-b5e6-96231b3b80d8

Implement dependent library processing and search paths for them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16287 91177308-0d34-0410-b5e6-96231b3b80d8

Convert the Emitter to use the lib/System "Memory" interface instead of the
old SystemUtils.h interface to allocate RWX blocks of memory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16286 91177308-0d34-0410-b5e6-96231b3b80d8

Add library LLVMsystem.a because the JIT now needs it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16285 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the interface of a function to use the correct typedef for an
argument so that it will always compile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16284 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the remove method for deleting entries from the SetVector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16283 91177308-0d34-0410-b5e6-96231b3b80d8

Implement support for dependent libraries. The "source" module's dependent
libraries list is merged into the "destination" module's list. Also, if the
source module is one of the dependent libraries, it is removed from the
list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16282 91177308-0d34-0410-b5e6-96231b3b80d8

Change interface to use correct typedef so it will always compile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16281 91177308-0d34-0410-b5e6-96231b3b80d8

Make the dependent libraries list use a SetVector instead of a regular
vector so that duplicate libraries never occur within a module.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16280 91177308-0d34-0410-b5e6-96231b3b80d8