Fix typos. Rewrite head-of-file comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10719 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typos. Regularize include guard.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10718 91177308-0d34-0410-b5e6-96231b3b80d8

New bugs fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10716 91177308-0d34-0410-b5e6-96231b3b80d8

Testcase for PR202

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10715 91177308-0d34-0410-b5e6-96231b3b80d8

Improve encapsulation in the Loop and LoopInfo classes by eliminating the
getSubLoops/getTopLevelLoops methods, replacing them with iterator-based
accessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10714 91177308-0d34-0410-b5e6-96231b3b80d8

explain the jump for llvm-db

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10713 91177308-0d34-0410-b5e6-96231b3b80d8

Add a separate list of fixed intervals. This improves the running time
of the register allocator as follows:

       before   after
mesa   2.3790  1.5994
vpr    2.6008  1.2078
gcc    1.9840  0.5273
mcf    0.2569  0.0470
eon    1.8468  1.4359
twolf  0.9475  0.2004
burg   1.6807  1.3300
lambda 1.2191  0.3764

Speedups range anyware from 30% to over 400% :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10712 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10711 91177308-0d34-0410-b5e6-96231b3b80d8

Remove declared but undefined method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10710 91177308-0d34-0410-b5e6-96231b3b80d8

Change perl interpreter path to the standard /usr/bin/perl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10708 91177308-0d34-0410-b5e6-96231b3b80d8

Change implementation of LiveIntervals::overlap(). This results in a
30-50% decrease in running time of the linear scan register allocator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10707 91177308-0d34-0410-b5e6-96231b3b80d8

Ugh, fix some copy and pasted code that somehow never got compiled or something
:(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10706 91177308-0d34-0410-b5e6-96231b3b80d8

Pass std::string to constructor as const reference to avoid multiple
copies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10705 91177308-0d34-0410-b5e6-96231b3b80d8

restore comments to this file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10704 91177308-0d34-0410-b5e6-96231b3b80d8

* Implement set/show args
* Implement support for arguments to the 'run' command
* Minor cleanups and fixes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10703 91177308-0d34-0410-b5e6-96231b3b80d8

implement the "null command" which repeats the last command

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10702 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for new intrinsic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10701 91177308-0d34-0410-b5e6-96231b3b80d8

add new intrinsic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10700 91177308-0d34-0410-b5e6-96231b3b80d8

add new method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10699 91177308-0d34-0410-b5e6-96231b3b80d8

Add links to SLD from the LangRef.html doc
Clean up the SLD document a LOT
Fill in a lot of details in the SLD document
update the formats for the object descriptors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10698 91177308-0d34-0410-b5e6-96231b3b80d8

Fix some typos and copy-and-paste-os in comments, and doxygenify.
Add <csignal> so that this file compiles on Solaris.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10697 91177308-0d34-0410-b5e6-96231b3b80d8

Remove simple coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10695 91177308-0d34-0410-b5e6-96231b3b80d8

/me slaps head

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10694 91177308-0d34-0410-b5e6-96231b3b80d8

/me slaps forehead

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10693 91177308-0d34-0410-b5e6-96231b3b80d8

fix warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10692 91177308-0d34-0410-b5e6-96231b3b80d8

Add VMCore and code generator support for debugging intrinsics.  By default
code generators completely ignore them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10691 91177308-0d34-0410-b5e6-96231b3b80d8

Add some intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10690 91177308-0d34-0410-b5e6-96231b3b80d8

An example testcase for use in the debugger.  Currently you can do stuff like
stepping, next'ing, finish'ing, stacktraces, source listings, etc.  You can't
print program variables yet though.

Oh, and I lost my nice commented version of funccall.ll  :(

Test with:
llvm-as funccall.ll
llvm-db funccall.bc
<arguments>

This is not automatically testable yet, and the C front-end doesn't support
debug information yet.  That said, it's a start.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10689 91177308-0d34-0410-b5e6-96231b3b80d8

Add new directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10688 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of the LLVM Source-Level Debugger.  This is incomplete, but
a good start.  The status is documented in docs/SourceLevelDebugging.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10687 91177308-0d34-0410-b5e6-96231b3b80d8

Add new dir

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10686 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of the LLVM source-level debugger.  This is still not finished,
by any stretch of the imagination, but it is pretty cool and works :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10685 91177308-0d34-0410-b5e6-96231b3b80d8

Initial implementation of some source-level debugging stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10684 91177308-0d34-0410-b5e6-96231b3b80d8

First version of this document.  It is still missing some pretty big pieces, and
the debugging information formats will likely change, but it's a start, and I
have to move on to other things in the short-term, so it might be a while before
I get back to working on this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10683 91177308-0d34-0410-b5e6-96231b3b80d8

Currently we cannot handle two-address instructions of the form:
A = B op C where A == C, but this cannot really occur in practice
because of SSA form. Add an assert to check that just to be safe.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10682 91177308-0d34-0410-b5e6-96231b3b80d8

Update description.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10681 91177308-0d34-0410-b5e6-96231b3b80d8

Regression test for initializers with members of unknown size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10678 91177308-0d34-0410-b5e6-96231b3b80d8

Not all platforms supports sighandler_t, so I changed it to use the older
return value from signal() (which should be the same type; it's just not
typedef'd).
This fixes the build on Solaris.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10675 91177308-0d34-0410-b5e6-96231b3b80d8

Add new ExecutionEngine::getGlobalValueAtAddress method, which can efficiently
turn a memory address back into the LLVM global object that starts at that
address.  Note that this won't cause any additional datastructures to be built
for clients of the EE that don't need this information.

Also modified some code to not access the GlobalAddress map directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10674 91177308-0d34-0410-b5e6-96231b3b80d8

Add new ExecutionEngine::getGlobalValueAtAddress method, which can efficiently
turn a memory address back into the LLVM global object that starts at that
address.  Note that this won't cause any additional datastructures to be built
for clients of the EE that don't need this information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10673 91177308-0d34-0410-b5e6-96231b3b80d8

* Add a new helper progress method
* Make sure that the user sees the 100% mark
* Don't bother printing out X.0%, just print out X%

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10672 91177308-0d34-0410-b5e6-96231b3b80d8

Add some comments, add new getGlobalVariable method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10671 91177308-0d34-0410-b5e6-96231b3b80d8

Add some comments, add a new getGlobalVariable method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10670 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10669 91177308-0d34-0410-b5e6-96231b3b80d8

* Make Module::getTypeName const
* Add new Module::getTypeByName method
* Group methods in Module.cpp better

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10668 91177308-0d34-0410-b5e6-96231b3b80d8

Make the lookup method const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10667 91177308-0d34-0410-b5e6-96231b3b80d8

Add a bunch of fine tunings that Reid contributed.  Thanks Reid!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10666 91177308-0d34-0410-b5e6-96231b3b80d8

add new function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10665 91177308-0d34-0410-b5e6-96231b3b80d8

Add new function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10664 91177308-0d34-0410-b5e6-96231b3b80d8

clarify comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10663 91177308-0d34-0410-b5e6-96231b3b80d8

New class, useful for command-line interactive programs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10662 91177308-0d34-0410-b5e6-96231b3b80d8

doxygenify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10661 91177308-0d34-0410-b5e6-96231b3b80d8

testcase for PR198

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10660 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR198

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10659 91177308-0d34-0410-b5e6-96231b3b80d8

Add comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10658 91177308-0d34-0410-b5e6-96231b3b80d8

Minor code cleanups.  The only bugfix is to the UR_DEBUG stuff which didn't
compile when enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10657 91177308-0d34-0410-b5e6-96231b3b80d8

Updated from files in llvm/autoconf.  This was done immediently following
the renaming of aclocal.m4 to acinclude.m4.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10656 91177308-0d34-0410-b5e6-96231b3b80d8

Moved aclocal.m4 to acinclude.m4.  To re-generate the configure script,
do the following:
% cd llvm/autoconf
% aclocal
% autoconf -o ../configure

This changes facilitaties the following:
1) It should be easier to incorporate new autoconf macros.
2) It allows for conversion to Automake (should we ever desire it).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10655 91177308-0d34-0410-b5e6-96231b3b80d8

remove some useless #includes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10654 91177308-0d34-0410-b5e6-96231b3b80d8

Remove some pointless #includes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10653 91177308-0d34-0410-b5e6-96231b3b80d8

Use getFileSize() instead of sys/stat.h directly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10652 91177308-0d34-0410-b5e6-96231b3b80d8

Use new getFileSize function.  Eliminate some using directives.  Reorder #includes a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10651 91177308-0d34-0410-b5e6-96231b3b80d8

Use new getFileSize function instead of sys/stat.h directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10650 91177308-0d34-0410-b5e6-96231b3b80d8

Add new method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10649 91177308-0d34-0410-b5e6-96231b3b80d8

Add new function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10648 91177308-0d34-0410-b5e6-96231b3b80d8

Add a -disable-opt flag to gccas, so that we can use  -Wa,-disable-opt just
like -Wl,-disable-opt

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10647 91177308-0d34-0410-b5e6-96231b3b80d8

Further revisions of the FDHandle idea.  In this version we use ownership
semantics that are the same as those used by std::auto_ptr.  This allows
copying of FDHandle's, but copying transfers ownership.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10646 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new class useful for providing fully materialized modules to ExecutionEngine's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10645 91177308-0d34-0410-b5e6-96231b3b80d8

Allow C++ programs to end in .cc.  This allows C++ test programs in the
test suite to compile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10644 91177308-0d34-0410-b5e6-96231b3b80d8

Add trivial exception specs to produce better code since the methods cannot
be inlined.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10643 91177308-0d34-0410-b5e6-96231b3b80d8

Factor FDHandle out of the bytecode reader into the FileUtilities.h support
routines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10642 91177308-0d34-0410-b5e6-96231b3b80d8

implement new getToken function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10639 91177308-0d34-0410-b5e6-96231b3b80d8

add new function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10638 91177308-0d34-0410-b5e6-96231b3b80d8

What do you know, we actually do accomplish some things around here :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10637 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering
implementation from the TargetMachine directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10636 91177308-0d34-0410-b5e6-96231b3b80d8

Reserve ECX and EDI instead of EBX and EDI. Since EBX is a callee
saved register it has a longer free range than ECX (which is defined
every time there is a fnuction call) which makes ECX a better register
to reserve.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10635 91177308-0d34-0410-b5e6-96231b3b80d8

Add coalescing to register allocator. A hint is added to each interval
which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10634 91177308-0d34-0410-b5e6-96231b3b80d8

Add TargetInstrInfo::isMoveInstr() to support coalescing in register
allocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10633 91177308-0d34-0410-b5e6-96231b3b80d8

Whoops, don't try to lower non intrinsic calls

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10632 91177308-0d34-0410-b5e6-96231b3b80d8

Pass extra arguments around n stuph

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10631 91177308-0d34-0410-b5e6-96231b3b80d8

We may now pass IntrinsicLowering implementations into these methods

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10630 91177308-0d34-0410-b5e6-96231b3b80d8

implement support for the intrinsic lowering functionality

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10629 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate some code that is not needed now that we have the intrinsic lowering pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10628 91177308-0d34-0410-b5e6-96231b3b80d8

Pass around IntrinsicLowering instances as appropriate.
Reimplement the Interpreters implementation of va_* to be more direct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10627 91177308-0d34-0410-b5e6-96231b3b80d8

Use the intrinsic lowering functionality

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10626 91177308-0d34-0410-b5e6-96231b3b80d8

add argument

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10625 91177308-0d34-0410-b5e6-96231b3b80d8

ABC's must have virtual dtors!  Shame on me!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10624 91177308-0d34-0410-b5e6-96231b3b80d8

Move into the VMCore library

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10623 91177308-0d34-0410-b5e6-96231b3b80d8

Move header into top-level llvm dir

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10622 91177308-0d34-0410-b5e6-96231b3b80d8

Implement the default implementation of the intrinsic lowering class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10621 91177308-0d34-0410-b5e6-96231b3b80d8

Add new interface that allows removal of some code from the code generators,
provides for future extensibility, might help the LLVA project avoid having to
hack their own LLI, and provides support required for the experimental Venus
project.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10620 91177308-0d34-0410-b5e6-96231b3b80d8

finegrainify namespacification
minor cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10619 91177308-0d34-0410-b5e6-96231b3b80d8

Merging constants can cause further room for improvement.  Iterate until
we converge

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10618 91177308-0d34-0410-b5e6-96231b3b80d8

Add a note

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10617 91177308-0d34-0410-b5e6-96231b3b80d8

Factor code out of LLI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10616 91177308-0d34-0410-b5e6-96231b3b80d8

New method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10615 91177308-0d34-0410-b5e6-96231b3b80d8

Factor out code to ExecutionEngine

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10614 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10613 91177308-0d34-0410-b5e6-96231b3b80d8

minor cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10612 91177308-0d34-0410-b5e6-96231b3b80d8

* eliminate the -f argument to lli, as it was silly and never useful anyway
* Inline callMain function
* Remove hack from the ExecutionEngines where the 'run' method would automatically
  run atExit functions.  Fixing this requires explicitly calling exit if main returns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10611 91177308-0d34-0410-b5e6-96231b3b80d8