Do not segfault when the post-dominator tree is empty (ie, there are no return
or unwind instructions in the function)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8537 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase that crashes opt

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8536 91177308-0d34-0410-b5e6-96231b3b80d8

Whoops, remove makefile too

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8533 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead library, it is now folded into crtend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8532 91177308-0d34-0410-b5e6-96231b3b80d8

Allow specifying a file with symbols to export

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8531 91177308-0d34-0410-b5e6-96231b3b80d8

Move the exception handling runtime stuff into this directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8530 91177308-0d34-0410-b5e6-96231b3b80d8

Stop building `as' and `dis' as they have been removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8529 91177308-0d34-0410-b5e6-96231b3b80d8

`dis' is no longer an LLVM tool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8528 91177308-0d34-0410-b5e6-96231b3b80d8

`as' is no longer an LLVM tool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8527 91177308-0d34-0410-b5e6-96231b3b80d8

Re-generated for recent changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8526 91177308-0d34-0410-b5e6-96231b3b80d8

Really use a search path as described in the log message for the last
version (instead of 2 fixed choices).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8525 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanups, give credit, remove code that should not be necessary, and
was a "major hack"  :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8524 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typos in comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8523 91177308-0d34-0410-b5e6-96231b3b80d8

Add prototype for the lowersetjmp pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8522 91177308-0d34-0410-b5e6-96231b3b80d8

Enable the setjmp/longjmp lowering pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8521 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of the Setjmp/Longjmp lowering/transformation pass,
contributed by the masterful Bill Wendling!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8520 91177308-0d34-0410-b5e6-96231b3b80d8

Ugh, a bug fix needed because of the bug in the CallGraph code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8519 91177308-0d34-0410-b5e6-96231b3b80d8

These two conditions are not exclusive!!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8518 91177308-0d34-0410-b5e6-96231b3b80d8

Make the print output more useful

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8517 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: PruneEH/2003-09-14-ExternalCall.llx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8516 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8515 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: Inline/2003-09-14-InlineValue.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8514 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8513 91177308-0d34-0410-b5e6-96231b3b80d8

Wrap long lines at 80 cols

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8512 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to #include the OBJROOT config.h file, not the SRCROOT config.h file!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8511 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a spello Misha made while fixing one of my appostrifications

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8510 91177308-0d34-0410-b5e6-96231b3b80d8

Update makellvm to work with the brave new world of separate obj-root trees.
With these changes, you can still run makellvm directly from your source tree
as follows:
  % makellvm [toolname] ## looks for obj-root in default places (see below)
or
  % makellvm -obj obj-root [toolname] ## specify obj-root explicitly.

With the first from, `makellvm' checks the following places in order
and uses the first one that contains the file `Makefile.config':
(1) Your src-root directory
(2) /localhome/$USER/llvm
Other choices can be added to this list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8509 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the nightly tester now that olden has been moved

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8508 91177308-0d34-0410-b5e6-96231b3b80d8

manually add the llvm-ar stuff. this should be regenerated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8507 91177308-0d34-0410-b5e6-96231b3b80d8

Added llvm-ar to the Makefile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8506 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8505 91177308-0d34-0410-b5e6-96231b3b80d8

Configure the llvm-ar directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8504 91177308-0d34-0410-b5e6-96231b3b80d8

Bugpoint has the ability of generating a plethora of core files, so to
avoid filling up the disk, set the max core file size to 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8503 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to cannonicalize loops before running indvar simplify

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8502 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase, this should be simplified

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8501 91177308-0d34-0410-b5e6-96231b3b80d8

Caught a few misses in the last modification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8500 91177308-0d34-0410-b5e6-96231b3b80d8

Updated for the re-organization of llvm/test/Programs/MultiSource.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8499 91177308-0d34-0410-b5e6-96231b3b80d8

Do not return success after checking only the FIRST USE of a gep instruction.
Instead, check all uses.
This fixes bug: ScalarRepl/2003-09-12-IncorrectPromote.ll
This also fixes the miscompilation of Ptrdist/bc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8493 91177308-0d34-0410-b5e6-96231b3b80d8

Initial go at documentation for llc.
Pretty crufty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8492 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase, bug distilled from bc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8491 91177308-0d34-0410-b5e6-96231b3b80d8

Minor optimization efficiency improvement:
  - Run mem2reg promotion first
  - Only rerun passes if the previous thing changed something

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8490 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed spelling and grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8489 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify code
Implement InstCombine/mul.ll:test9

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8488 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8487 91177308-0d34-0410-b5e6-96231b3b80d8

Added the SetjmpLongjmp Makefile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8486 91177308-0d34-0410-b5e6-96231b3b80d8

Modified the footer to be a link to the LLVM web page.
Organized the commands into three distinct groups on the main page.
Fixed the hyperlinks in the main page.
Removed as and dis; they will not exist with those names by Release 1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8485 91177308-0d34-0410-b5e6-96231b3b80d8

Adding a skeleton for the LLVM Command Guide.
Hopefully the group as a whole will update this into a real guide.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8483 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed spelling and grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8478 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed SPEC so that it would run correctly with the new autoconf-style object
directory.
Cleaned up the Makefile so that it uses VPATH to find source files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8477 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed SPEC so that it would run correctly with the new autoconf-style object
directory.
Added Makefile.spec to the list of files to copy to the object directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8476 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed SPEC so that it would run correctly with the new autoconf-style object
directory.
Added Makefile.spec to the list of files to copy to the object directory.
Moved the configuration of $SourceDir to Makefile.config and corrected the
conditional that surrounds it.  This allows SPEC to reset it and get the correct
VPATH.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8475 91177308-0d34-0410-b5e6-96231b3b80d8

Apostrophes are only used for possession and quoting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8473 91177308-0d34-0410-b5e6-96231b3b80d8

scalarrepl now includes mem2reg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8472 91177308-0d34-0410-b5e6-96231b3b80d8

Integrate functionality of the mem2reg pass directly into this pass to make
the combination more effective

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8471 91177308-0d34-0410-b5e6-96231b3b80d8

Move the -indvars pass much later to where it is more likely to do good stuff

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8470 91177308-0d34-0410-b5e6-96231b3b80d8

Renamed DominatorTree::Node::getNode() -> getBlock()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8469 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of the whole "Node2" business, rename getNode() ->getBlock() to
be more descriptive

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8468 91177308-0d34-0410-b5e6-96231b3b80d8

Spell `definite' correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8467 91177308-0d34-0410-b5e6-96231b3b80d8

Spell `definitely' correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8466 91177308-0d34-0410-b5e6-96231b3b80d8

Removed the aposthrophes endings and the elipses suffixes from build output.
This makes the output more consistent, and I just find aposthrophes annoying.
:)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8465 91177308-0d34-0410-b5e6-96231b3b80d8

Check in the fix I meant to apply here, but mistakenly applied to
tools/extract instead..... heh

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8464 91177308-0d34-0410-b5e6-96231b3b80d8

* Move include files from middle of file to the top where they belong, moving
  the #define up there too
* Since we're including system headers, use the ones in include/llvm/Config
* While we're here, use the canonical LLVM header ordering algorithm

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8463 91177308-0d34-0410-b5e6-96231b3b80d8

Unwind instructions are intrinsically alive, just like returns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8462 91177308-0d34-0410-b5e6-96231b3b80d8

Rework dominator interfaces to handle changes in the post-dominance
construction.  Now there may be multiple root blocks, and null is a
special node used to mark the "virtual" exit node of a CFG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8461 91177308-0d34-0410-b5e6-96231b3b80d8

Rework post dominator information so that we do not have to
unify all exit nodes of a function to compute post-dominance information.
This does not work with functions that have both unwind and return nodes,
because we cannot unify these blocks.  The new implementation is better
anyway. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8460 91177308-0d34-0410-b5e6-96231b3b80d8

Rework dominator and post dominator information so that we do not have to
unify all exit nodes of a function to compute post-dominance information.
This does not work with functions that have both unwind and return nodes,
because we cannot unify these blocks.  The new implementation is better
anyway. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8459 91177308-0d34-0410-b5e6-96231b3b80d8

Update for new UnifyFunction... API
Remove using decl

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8458 91177308-0d34-0410-b5e6-96231b3b80d8

Remove #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8457 91177308-0d34-0410-b5e6-96231b3b80d8

Expand the pass to unify all of the unwind blocks as well

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8456 91177308-0d34-0410-b5e6-96231b3b80d8

Remove a bunch of warnings from the CBE generated C code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8455 91177308-0d34-0410-b5e6-96231b3b80d8

"the one true solution for compatibility with GCC 3.3+"

... or so I hope

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8454 91177308-0d34-0410-b5e6-96231b3b80d8

Be a little more specific about what is begin generated.  Only print
command line if VERBOSE=1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8453 91177308-0d34-0410-b5e6-96231b3b80d8

Only emit inter-field-padding if the amount of padding is != 0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8452 91177308-0d34-0410-b5e6-96231b3b80d8

Clean up header, remove extra #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8451 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid dumping runtime library bytecode files into lib/Bytecode if building
into the source directory

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8450 91177308-0d34-0410-b5e6-96231b3b80d8

Make createVerifierPass return a FunctionPass *.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8449 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to reflect the new locations of SingleSource tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8447 91177308-0d34-0410-b5e6-96231b3b80d8

Remove using declarations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8442 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8440 91177308-0d34-0410-b5e6-96231b3b80d8

Regenerated for Chris's updates, which adds several runtime library
directories.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8439 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing runtime directories

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8438 91177308-0d34-0410-b5e6-96231b3b80d8

Fix warning when _POSIX_MAPPED_FILES is already defined in unistd.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8436 91177308-0d34-0410-b5e6-96231b3b80d8

another trivial cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8435 91177308-0d34-0410-b5e6-96231b3b80d8

Simplification of trip counting machinery.
  - make sure to check the indvar type before anything else (efficiency)
  - Make sure to insert the 'add' into the program, even though it'll be
    dead
  - Wrap code at 80 columns
  - Other minor cleanups to reduce indentation level

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8434 91177308-0d34-0410-b5e6-96231b3b80d8

Don't explicitly use $SourceDir to find the tblgen files.  This causes make
some confusion when trying to generate files (it probably couldn't tell that
./file and $(SourceDir)/file may be the same file).
Now, just let VPATH find everything, and list the primary tblgen file first in
the list of dependencies so that we can just use $< to reference it in the make
rule.

This should hopefully fix the nightly tester.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8433 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spello

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8432 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spell-o's

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8431 91177308-0d34-0410-b5e6-96231b3b80d8

Spelling fixes.  I think that "cannonical" is ok, but "canonical" appears to
be the canonical form for the word

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8430 91177308-0d34-0410-b5e6-96231b3b80d8

Spelling fixes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8429 91177308-0d34-0410-b5e6-96231b3b80d8

Fix up file header

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8428 91177308-0d34-0410-b5e6-96231b3b80d8

clean up file header comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8427 91177308-0d34-0410-b5e6-96231b3b80d8

Simplify some code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8426 91177308-0d34-0410-b5e6-96231b3b80d8

Spell `occurrence' correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8425 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to find source files using VPATH.  This makes writing build rules
much cleaner and easier.
Labeled .td as a suffix for tblgen files in Makefile.rules.
Modified build rules so that source files generated during the build are placed
in the build directory and not the source directory (and not in a Debug
directory).  This makes the system cleaner and allows us to have a read-only
source tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8424 91177308-0d34-0410-b5e6-96231b3b80d8

Removed Makefiles for directories that no longer exist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8423 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: InstCombine/2003-09-09-VolatileLoadElim.ll
Loads "mayWriteToMemory" if they are volatile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8422 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase: do not DCE volatile loads!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8421 91177308-0d34-0410-b5e6-96231b3b80d8

Update testcases to be more modern

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8420 91177308-0d34-0410-b5e6-96231b3b80d8

Reverting back to the previous revision.
We want to check for length 5 because we might get the "llvm." string as the
name.  That string is in the LLVM namespace and should be checked as such.
We also don't have to worry about garbage data because (I believe) the string
class will return a valid value.  So, the switch statement will work and we
don't have to worry about the code wandering into segfault land.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8419 91177308-0d34-0410-b5e6-96231b3b80d8

Modified the check for intrinsic functions.  All intrinsic functions have to
be at least 6 characters, since something must follow the "llvm." string in the
function name.
This seems to fix an assertion failure with the SingleSource tests, too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8418 91177308-0d34-0410-b5e6-96231b3b80d8