Turn off "attribute weak" to pacify Mac OS X's system compiler, which prints a
warning whenever it sees it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10391 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo in comment.  Add prototype for getConstantExprValue().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10390 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for --debug-only=interpreter, to print out instrs before
interpreting them.

Move support for getting the value of a ConstantExpr into
getConstantExprValue(), and add support for the rest of the different
kinds of ConstantExprs.  (I don't think I like ConstantExprs!)
This requires separate procedures executeShlInst() and executeShrInst().

Reduce the number of references to TheEE.

Get rid of an old comment mentioning annotations.

Fix exitCalled(), which was crashing the Interpreter. This was a
leftover from the return-value code refactoring.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10389 91177308-0d34-0410-b5e6-96231b3b80d8

This appears to fix Bug 172 and does not break any other feature tests or
regression tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10388 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: LICM/sink_multiple_exits.ll

Thanks for pointing this out John  :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10387 91177308-0d34-0410-b5e6-96231b3b80d8

Don't allow dead instructions to stop sinking early.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10386 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: IndVarsSimplify/2003-12-10-RemoveInstrCrash.llx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10385 91177308-0d34-0410-b5e6-96231b3b80d8

A new testcase, reduced by bugpoint

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10384 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification
Fix bug: LowerInvoke/2003-12-10-Crash.llx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10382 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10381 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a comma error.
Added the --disable-threads option to GCC configure (to avoid pthread errors
when building code with LLVM).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10380 91177308-0d34-0410-b5e6-96231b3b80d8

Support 'make install' for LLVM include files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10378 91177308-0d34-0410-b5e6-96231b3b80d8

Upon Chris's suggestion, moved the #ifdef's to the generated C code.
This makes LLVM and the generated C code more portable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10377 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification
Reorder #includes
Implement: IndVarsSimplify/2003-12-10-IndVarDeadCode.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10376 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed the CBE on Solaris/Sparc.  We need to define the return value of
the write() system call because it returns 64 bits on Solaris 64 bit,
and an implicit return value of int says it returns 32 bits.
Admittedly, this is a bit of a hack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10375 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10374 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification
Fix bug: LoopSimplify/2003-12-10-ExitBlocksProblem.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10373 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase which caused a bunch of tests to break last night with more
aggressive LICM

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10372 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10371 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid performing two identical lookups when one will suffice

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10370 91177308-0d34-0410-b5e6-96231b3b80d8

Make LICM itself a bit more efficient, and make the generated code more efficient too: don't insert a store in every exit block, because a particular block may be exited to more than once by a loop

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10369 91177308-0d34-0410-b5e6-96231b3b80d8

Removed the pthread_once() function because it doesn't actually do
what it's supposed to do.
Just leave this library as a dummy library for now until we have time to
port a real pthread library (or get glibc working).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10368 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10367 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification
Provide a context module to WriteAsOperand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10366 91177308-0d34-0410-b5e6-96231b3b80d8

Added the --host= option to the Sparc configuration directions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10364 91177308-0d34-0410-b5e6-96231b3b80d8

Dummy implementation of the pthread library.
This is needed since libstdc++ uses pthread_once().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10360 91177308-0d34-0410-b5e6-96231b3b80d8

Make 'opt -o -' work correctly instead of creating a file named './-'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10359 91177308-0d34-0410-b5e6-96231b3b80d8

Implement instruction sinking out of loops.  This still can do a little bit
better job, but this is the majority of the work.  This implements
LICM/sink*.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10358 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase, checking to ensure we handle yet-another spiffy case correctly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10357 91177308-0d34-0410-b5e6-96231b3b80d8

Don't assume that system headers define 'uint' or 'ulong' as types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10356 91177308-0d34-0410-b5e6-96231b3b80d8

Fix apparent copy-and-paste-o.
Get rid of %debug - Mac OS X bison doesn't have it.  sigh.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10352 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for installing tool executables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10351 91177308-0d34-0410-b5e6-96231b3b80d8

Add installation directories and commands, standardly provided by configure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10350 91177308-0d34-0410-b5e6-96231b3b80d8

Yet another hard testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10349 91177308-0d34-0410-b5e6-96231b3b80d8

Do not insert one entry PHI nodes in split exit blocks!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10348 91177308-0d34-0410-b5e6-96231b3b80d8

Check in the llvm-native-gcc script, which I use in the process of
debugging front-end miscompilations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10347 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new testcase which breaks the sinker because the loop canonnicalization
pass does not do a canonnicalization that the sinker wants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10346 91177308-0d34-0410-b5e6-96231b3b80d8

Fix buggy test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10345 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for sinking operations from loops with multiple exits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10344 91177308-0d34-0410-b5e6-96231b3b80d8

Make the test a bit harder so that we test to ensure that _both_ instructions
are sunk

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10343 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor code a little bit, eliminating the gratuitous InstVisitor, which
should make subsequent changes simpler.  This also allows us to hoist vaarg
and vanext instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10342 91177308-0d34-0410-b5e6-96231b3b80d8

Fine grainify namespacification
Code cleanups
Make LICM::SafeToHoist marginally more efficient

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10341 91177308-0d34-0410-b5e6-96231b3b80d8

New testcases for LICM improvement: code sinking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10339 91177308-0d34-0410-b5e6-96231b3b80d8

Improve portability with Mac OS/X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10338 91177308-0d34-0410-b5e6-96231b3b80d8

Improve testcase portability on OS/X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10337 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase that is not actually handled yet, but should be in the future.
This is here to remind me to get back to this after a while.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10336 91177308-0d34-0410-b5e6-96231b3b80d8

Added the -h option for compatibility with other linkers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10335 91177308-0d34-0410-b5e6-96231b3b80d8

Whoops, forgot to check this in.  :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10334 91177308-0d34-0410-b5e6-96231b3b80d8

Implement: TailCallElim/accum_recursion_constant_arg.ll

Also make sure to clean up any PHI nodes that are inserted which are pointless.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10333 91177308-0d34-0410-b5e6-96231b3b80d8

Implement: test/Regression/Transforms/TailCallElim/accum_recursion.ll

We now insert accumulator variables as necessary to eliminate tail recursion
more aggressively.  This is still fairly limited, but allows us to transform
fib/factorial, and other functions into nice happy loops.  :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10332 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for automatic insertion of accumulator variables to eliminate
tail recursion

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10331 91177308-0d34-0410-b5e6-96231b3b80d8

Add a missing semi colon, which breaks bison 1.5

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10325 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify makefiles by just explicitly listing directories

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10324 91177308-0d34-0410-b5e6-96231b3b80d8

Updated build instructions for Sparc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10323 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed the dynamic generation of the list of subdirectories to compile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10322 91177308-0d34-0410-b5e6-96231b3b80d8

implement method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10321 91177308-0d34-0410-b5e6-96231b3b80d8

Use the new method, though noone currently implements it any better than before

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10320 91177308-0d34-0410-b5e6-96231b3b80d8

add two new virtual functions:
  The first returns a function pointer or a stub if it's not already generated
  The second exposes what was previously JIT specific state to general clients

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10319 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10318 91177308-0d34-0410-b5e6-96231b3b80d8

Makefile updates contributed by Reid

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10317 91177308-0d34-0410-b5e6-96231b3b80d8

New bug

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10316 91177308-0d34-0410-b5e6-96231b3b80d8

`effect' is the noun, `affect' is the verb.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10315 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for PR165

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10314 91177308-0d34-0410-b5e6-96231b3b80d8

Add note about sucky suse compiler

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10313 91177308-0d34-0410-b5e6-96231b3b80d8

Cleanup and restructure the code to make it easier to read and maintain.
The only functionality change is that we now implement:
  Regression/Transforms/TailCallElim/intervening-inst.ll

Which is really kinda pointless, because it means that trivially dead code
does not interfere with -tce, but trivially dead code probably wouldn't be
around anytime when this pass is run anyway.

The point of including this change it to support other more aggressive
transformations when we have the analysis capabilities to do so.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10312 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase, this should be -tailcallelim'inated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10311 91177308-0d34-0410-b5e6-96231b3b80d8

Since ssaification of the varargs builtings, the vaarg instruction no longer
can write to memory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10310 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerated using autoheader-2.57

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10309 91177308-0d34-0410-b5e6-96231b3b80d8

Bugpoint had appalingly bad grammar.  Fix some of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10308 91177308-0d34-0410-b5e6-96231b3b80d8

Do not leave a bunch of crud lying around

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10307 91177308-0d34-0410-b5e6-96231b3b80d8

It is now after pldi.  This issue has been fixed, so remove the hack

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10306 91177308-0d34-0410-b5e6-96231b3b80d8

Implement RaiseAllocations/FreeCastConstantExpr.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10305 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase that the raiseallocations pass should be able to handle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10304 91177308-0d34-0410-b5e6-96231b3b80d8

* Finegrainify namespacification
* Transform: free <ty>* (cast <ty2>* X to <ty>*) into free <ty2>* X

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10303 91177308-0d34-0410-b5e6-96231b3b80d8

The recalclulate method was a nasty hack that was once used by the -cee pass,
which never worked itself.  The cee pass still doesn't work, but it doesn't use
this method anymore anyway, so eliminate the method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10302 91177308-0d34-0410-b5e6-96231b3b80d8

Completely rewrite domset, idom, and domtree implementation.  Now it is based
on the algorithm for directly computing immediate dominators presented in this
paper:

  A Fast Algorithm for Finding Dominators in a Flowgraph
  T. Lengauer & R. Tarjan, ACM TOPLAS July 1979, pgs 121-141.

This _substantially_ speeds up construction of all dominator related information.
Post-dominators to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10301 91177308-0d34-0410-b5e6-96231b3b80d8

Rewrite dominators implementation.  Now domset is constructed from immdom,
instead of the other way around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10300 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification
Move method out of generic dominators construction code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10299 91177308-0d34-0410-b5e6-96231b3b80d8

Move this method out of the generic dominators calculation code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10298 91177308-0d34-0410-b5e6-96231b3b80d8

New command line parsing. This isn't as perfect as I would have liked. The CommandLine Library needs to be extended,\7f\7f in order to parse the options and allow for optional dashes. In addition, the help option isn't correct since I do the parsing mostly myself. But this is in the o\7fcorrect ar format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10297 91177308-0d34-0410-b5e6-96231b3b80d8

Stop using the -fshort-enum compile option

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10296 91177308-0d34-0410-b5e6-96231b3b80d8

Fix awkward wording

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10295 91177308-0d34-0410-b5e6-96231b3b80d8

Cleanup the release notes in preparation for the release.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10294 91177308-0d34-0410-b5e6-96231b3b80d8

Add check for pthread_mutex_lock() in -lpthread (or otherwise).
Regenerated configure w/ autoconf-2.57.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10293 91177308-0d34-0410-b5e6-96231b3b80d8

Make assertion stricter. Since the source operands are allocated at
this point, the second operand must be a physical register (it cannot
be a virtual one).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10292 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug in register spilling when a preallocated live range overlaps a
potential register assignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10291 91177308-0d34-0410-b5e6-96231b3b80d8

Move operator<<(std::ostream&, const LiveInterval&) out of the header file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10290 91177308-0d34-0410-b5e6-96231b3b80d8

Sort live intervals by increasing start point.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10289 91177308-0d34-0410-b5e6-96231b3b80d8

Improve debugging output and clean up some code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10288 91177308-0d34-0410-b5e6-96231b3b80d8

Finegrainify namespacification
Fix regressions ScalarRepl/basictest.ll & arraytest.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10287 91177308-0d34-0410-b5e6-96231b3b80d8

Lock abstraction, introduced with a view toward making the JIT thread-safe.
Eventually.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10284 91177308-0d34-0410-b5e6-96231b3b80d8

Make stripped-bytecode a recursive target

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10283 91177308-0d34-0410-b5e6-96231b3b80d8

Add new block number

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10281 91177308-0d34-0410-b5e6-96231b3b80d8

Emit & read more compressed bytecode by not emitting a bytecodeblock for
each basic block in function.  Instead, just emit a stream of instructions,
chopping up basic blocks based on when we find terminator instructions.  This
saves a fairly substantial chunk of bytecode space.  In stripped, sample
cases, for example, we get this reduction in size:

197.parser: 163036 -> 137180:  18.8% reduction
254.gap   : 844936 -> 689392:  22.6%
255.vortex: 621724 -> 528444:  17.7%

...

Not bad for something this simple.  :)  Note that this doesn't require a new
bytecode version number at all, though version 1.1 should not need to support
the old format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10280 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused enum value

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10279 91177308-0d34-0410-b5e6-96231b3b80d8

This may fix the "0 dirs" stuff we get in the nightly tests when they are
checking out over remote cvs connections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10278 91177308-0d34-0410-b5e6-96231b3b80d8

Add some "useful" methods

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10277 91177308-0d34-0410-b5e6-96231b3b80d8

Add an option to enable the SSA based peephole optimizer.
Eventually this pass will provide substantially better code in the interim between when we
have a crappy isel and nice isel.  Unfortunately doing so requires fixing the backend to
actually SUPPORT all of the fancy addressing modes that we now generate, and writing a DCE
pass for machine code.  Each of these is a fairly substantial job, so this will remain disabled
for the immediate future.  :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10276 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new SSA-based peephole optimizer which includes copy propagation and
folding of instructions into addressing modes.  This creates lots of dead
instructions, which are currently not deleted.  It also creates a lot of
instructions that the X86 backend currently cannot handle.  :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10275 91177308-0d34-0410-b5e6-96231b3b80d8

generalize the instruction types permitted a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10274 91177308-0d34-0410-b5e6-96231b3b80d8