* Rename X86::IMULr16 -> X86::IMULrr16
* Implement R1 = R2 * C where R1 and R2 are 32 or 16 bits. This avoids an
  extra copy into a register, reducing register pressure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9278 91177308-0d34-0410-b5e6-96231b3b80d8

Don't bother forwarding function references which are external to the program entirely

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9274 91177308-0d34-0410-b5e6-96231b3b80d8

Ok, return an explicit path to the shared object, unbreaking code generator
debugging with the JIT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9273 91177308-0d34-0410-b5e6-96231b3b80d8

Fix iterator invalidation problem

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9272 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate unused class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9270 91177308-0d34-0410-b5e6-96231b3b80d8

Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9269 91177308-0d34-0410-b5e6-96231b3b80d8

Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.

This allows removal of a special case from the instvisitor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9268 91177308-0d34-0410-b5e6-96231b3b80d8

* Multiplications by 2^X are turned into shifts.  This factors code out of the
  getelementptr code path for use by other code paths (like malloc and alloca).
* Optimize comparisons with zero
* Generate neg, not, inc, and dec instructions, when possible.

This gives some code size wins, which might translate into performance.  We'll
see tommorow in the nightly tester.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9267 91177308-0d34-0410-b5e6-96231b3b80d8

Add some new instructions.  Wheee

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9266 91177308-0d34-0410-b5e6-96231b3b80d8

Change it to match llvmgcc.html ... why do we have separate pages for these two?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9265 91177308-0d34-0410-b5e6-96231b3b80d8

Clarify the roles of gccld and gccas.
Mention that they should really read the gcc manual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9264 91177308-0d34-0410-b5e6-96231b3b80d8

Minor edits; also expand description of '-v' option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9263 91177308-0d34-0410-b5e6-96231b3b80d8

Tweak -plugin description to match bugpoint.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9262 91177308-0d34-0410-b5e6-96231b3b80d8

Mostly rewritten.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9261 91177308-0d34-0410-b5e6-96231b3b80d8

A minor fix

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9260 91177308-0d34-0410-b5e6-96231b3b80d8

Take out extra paragraph tag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9259 91177308-0d34-0410-b5e6-96231b3b80d8

Make this (-run) set look like the other (-disable) set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9258 91177308-0d34-0410-b5e6-96231b3b80d8

Always say "the test program", part 2.
Refer to the various "modules" of bugpoint as "debuggers", not
 "debugging modes" or "modules". I think this is more evocative of
 how they typically act, and it's shorter.
Add a note about how a linker bug can crash bugpoint early.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9257 91177308-0d34-0410-b5e6-96231b3b80d8

Two minor fixes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9256 91177308-0d34-0410-b5e6-96231b3b80d8

Minor edits to Description section.
Add Design Philosophy as a separate subsection.  Clarify its last sentence.
Give Automatic Mode Selection a uniquely-named anchor.
Always call the program the "test program", instead of the "initial program",
 the "LLVM program", the "test case", the "resultant module", etc.
Try to explain the assumptions a little more, instead of just describing the
 process.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9255 91177308-0d34-0410-b5e6-96231b3b80d8

Spell-check.
Many minor edits.
Rewrite some of the options section for grammatical parallelism,
 clarity, and brevity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9254 91177308-0d34-0410-b5e6-96231b3b80d8

DeHTMLify the email so that it only gets sent out if something changes.
Add printouts about failed building and testing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9253 91177308-0d34-0410-b5e6-96231b3b80d8

.string adds an implicit zero at the end.  This is not what we wanted.
This fixes PR#44.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9252 91177308-0d34-0410-b5e6-96231b3b80d8

Add debugtype, make output marginally more nice

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9251 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR #47

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9250 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug: Jello/2003-10-18-PHINode-ConstantExpr-CondCode-Failure.llx
This also fixes miscompilation of 176.gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9249 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase, distilled from 176.gcc codegen failure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9248 91177308-0d34-0410-b5e6-96231b3b80d8

Update compile information

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9247 91177308-0d34-0410-b5e6-96231b3b80d8

Add usage blurb

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9246 91177308-0d34-0410-b5e6-96231b3b80d8

Without this option, the -run-llc mode does not work with shared objects at
all, making it pointless for use with the code generator debugger.  With it,
it works like a charm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9245 91177308-0d34-0410-b5e6-96231b3b80d8

Add bugpoint advice section

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9244 91177308-0d34-0410-b5e6-96231b3b80d8

Print -fno-strict-aliasing as well

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9243 91177308-0d34-0410-b5e6-96231b3b80d8

Don't leave a trail of bugpoint-execution-output-* breadcrumbs all over the place

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9242 91177308-0d34-0410-b5e6-96231b3b80d8

Expand the --args section

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9241 91177308-0d34-0410-b5e6-96231b3b80d8

* Add the -additional-so option
* Add info about codegen and miscompilation mode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9240 91177308-0d34-0410-b5e6-96231b3b80d8

Beef up the description of bugpoint a lot.  Update for renamed options

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9239 91177308-0d34-0410-b5e6-96231b3b80d8

Change run-lli -> run-int
Many people associate lli with the jit, so we don't want to suprise them

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9238 91177308-0d34-0410-b5e6-96231b3b80d8

Default to using the CBE instead of the Interpreter if no -run-* option is specified

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9237 91177308-0d34-0410-b5e6-96231b3b80d8

Fix warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9236 91177308-0d34-0410-b5e6-96231b3b80d8

Print stuff to stdout if something changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9235 91177308-0d34-0410-b5e6-96231b3b80d8

If we detect a pass crash during miscompilation testing, immediately enter the
crash debugger

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9234 91177308-0d34-0410-b5e6-96231b3b80d8

add support for new linkage types

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9228 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR#50

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9227 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for the new varargs intrinsics and instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9226 91177308-0d34-0410-b5e6-96231b3b80d8

ADd support for the new varargs instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9225 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for the new varargs intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9224 91177308-0d34-0410-b5e6-96231b3b80d8

Update the sparc backend to at least compile correctly with the new varargs stuff even if it's not all implemented yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9223 91177308-0d34-0410-b5e6-96231b3b80d8

Interpret the new varargs intrinsics correctly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9222 91177308-0d34-0410-b5e6-96231b3b80d8

Updated to emit the final 1.0 bytecode format.  This supports weak linkage,
more efficient encoding of varargs calls, and the new varargs intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9221 91177308-0d34-0410-b5e6-96231b3b80d8

* New revised variable argument handling support
* More dense bytecode encoding for varargs calls (like printf)
* Eliminated the extremely old bytecode format.  rev #0 is now 1.0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9220 91177308-0d34-0410-b5e6-96231b3b80d8

New revised variable argument handling support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9219 91177308-0d34-0410-b5e6-96231b3b80d8

Update for new varargs support

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9218 91177308-0d34-0410-b5e6-96231b3b80d8

Fix bug in my checkin

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9217 91177308-0d34-0410-b5e6-96231b3b80d8

Another formatting fix

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9216 91177308-0d34-0410-b5e6-96231b3b80d8

More cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9215 91177308-0d34-0410-b5e6-96231b3b80d8

Be more helpful if a pass fails while chasing down a miscompilation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9214 91177308-0d34-0410-b5e6-96231b3b80d8

* Align comments into 80 columns
* Stop using full pathnames (we don't know where the source could be)
* Use only relative distance to the source, so a user can download the code and
  generate their own copy of the doxygen documentation easily
* Since `docs' has moved one level up, all relative path names lost a `..'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9213 91177308-0d34-0410-b5e6-96231b3b80d8

Chris says it's better to assert that TheModule is valid than silently return 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9212 91177308-0d34-0410-b5e6-96231b3b80d8

Added additional information about linking dynamic libraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9211 91177308-0d34-0410-b5e6-96231b3b80d8

You can't just blat the address into memory, you have to blat its
displacement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9210 91177308-0d34-0410-b5e6-96231b3b80d8

Adding license information for the sample project.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9209 91177308-0d34-0410-b5e6-96231b3b80d8

Updated the README so that it catagorizes the docs similar to the web page.
Added a few missing docs as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9208 91177308-0d34-0410-b5e6-96231b3b80d8

Don't release the Module, as that invalidates the Module* within the
ModuleProvider, which has bad consequences in lli::callAsMain() which tries to
access that same Module*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9205 91177308-0d34-0410-b5e6-96231b3b80d8

Implement replaceMachineCodeForFunction() for x86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9204 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor jump insertion code from CompilationCallback() into insertJumpAtAddr().
Make insertFarJumpAtAddr() return void, because nothing uses its return value.
Remove some commented-out code.
Implement replaceMachineCodeForFunction() for SPARC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9203 91177308-0d34-0410-b5e6-96231b3b80d8

Add prototype for replaceMachineCodeForFunction().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9202 91177308-0d34-0410-b5e6-96231b3b80d8

Return the Module that we just materialized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9201 91177308-0d34-0410-b5e6-96231b3b80d8

Tidy up doxygen comment for getPointerToFunction().
Add prototypes for recompileAndRelinkFunction() and runJITOnFunction().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9200 91177308-0d34-0410-b5e6-96231b3b80d8

Refactor running the JIT passes on a single function into the new method,
runJITOnFunction().

Add new method for recompiling and patching in new versions of functions,
recompileAndRelinkFunction().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9199 91177308-0d34-0410-b5e6-96231b3b80d8

Return the Module being materialized to avoid always calling getModule().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9198 91177308-0d34-0410-b5e6-96231b3b80d8

Add stub version of replaceMachineCodeForFunction. It will live here until
we have a better place for it to go.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9197 91177308-0d34-0410-b5e6-96231b3b80d8

Remove extra blank line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9196 91177308-0d34-0410-b5e6-96231b3b80d8

Do not crash on empty structures

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9195 91177308-0d34-0410-b5e6-96231b3b80d8

Modified the Makefile so that the sample library is linked dynamically.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9194 91177308-0d34-0410-b5e6-96231b3b80d8

* Give credit where credit's due
* `Quote' names of projects
* Add emails to people's records

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9193 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for C++ frontend crash

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9192 91177308-0d34-0410-b5e6-96231b3b80d8

Tighten up handling of checks for shift instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9191 91177308-0d34-0410-b5e6-96231b3b80d8

Eliminate some extraneous code in SlotCalculator::insertVal().

Rename SlotCalculator::getValSlot() to SlotCalculator::getSlot(),
       SlotCalculator::insertValue() to SlotCalculator::getOrCreateSlot(),
       SlotCalculator::insertVal() to SlotCalculator::insertValue(), and
       SlotCalculator::doInsertVal() to SlotCalculator::doInsertValue().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9190 91177308-0d34-0410-b5e6-96231b3b80d8

Someone forgot to commit an updated configure after adding tools/llvm-nm to configure.ac :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9189 91177308-0d34-0410-b5e6-96231b3b80d8

Add debug variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9188 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo in comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9187 91177308-0d34-0410-b5e6-96231b3b80d8

This file has funny include guards and funny extra whitespace.
Make this file less funny.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9186 91177308-0d34-0410-b5e6-96231b3b80d8

Document that llvm-nm works in pipe mode, thanks to the efforts of Chris.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9185 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a typo in a comment, and zap a blank line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9184 91177308-0d34-0410-b5e6-96231b3b80d8

Add separator between different types of readers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9183 91177308-0d34-0410-b5e6-96231b3b80d8

JIT.cpp:
* #include "llvm/ModuleProvider"
* alphabetize #includes
* omit extraneous parens in pointer expressions

VM.cpp:
* #include "llvm/ModuleProvider"
* alphabetize #includes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9182 91177308-0d34-0410-b5e6-96231b3b80d8

* Reorder includes as per the style guide
* Move the constructors from .h file here
* Document ExecutionEngine::create()
* Catch exception possibly thrown by ModuleProvider::releaseModule()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9181 91177308-0d34-0410-b5e6-96231b3b80d8

If we move the constructors to the .cpp file, we can drop the #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9180 91177308-0d34-0410-b5e6-96231b3b80d8

Removed the .PRECIOUS of Lex and Yacc output files.
They are already marked precious in llvm/Makefile.rules, and removing
this line seems to fix the Makefile so that the Yacc output is placed
into the object tree and not the source tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9179 91177308-0d34-0410-b5e6-96231b3b80d8

Removed the -mode option.
Fixed some grammar, spelling, and punctuation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9178 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9177 91177308-0d34-0410-b5e6-96231b3b80d8

Added documentation on the new -disable-inlining option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9176 91177308-0d34-0410-b5e6-96231b3b80d8

I am not the only John Criswell.
:)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9175 91177308-0d34-0410-b5e6-96231b3b80d8

Give credit where credit is due

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9174 91177308-0d34-0410-b5e6-96231b3b80d8

Added a section on all of the wonderful Makefile variables used to locate
LLVM.
Added information on how to use the autoconf code to specify LLVM's
location and setup separate source and object trees.
Fixed some of the wording to be more accurate, especially regarding the
building of libraries.
Added information on where built files are placed.
Added a link to the llvmdev mailing list so that they can ask us questions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9173 91177308-0d34-0410-b5e6-96231b3b80d8

Make llvm-nm work in "pipe mode"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9172 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for 'weak' linkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9171 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for 'weak' linkage.

For now, we translate linkonce into weak linkage in the bytecode format because
we don't have enough bits to represent it.  We will rev the bytecode version
soon anyways, so this will be fixed in the near future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9170 91177308-0d34-0410-b5e6-96231b3b80d8

Geeze, what is with Brian and these ifdef's?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9169 91177308-0d34-0410-b5e6-96231b3b80d8

Add weak linking type

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9168 91177308-0d34-0410-b5e6-96231b3b80d8