Wrap long line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14552 91177308-0d34-0410-b5e6-96231b3b80d8

* Do not allocate r0 as we use it indiscriminantly in the instr selector.
* Do not define CR register class because we don't (yet) have the i4 type

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14551 91177308-0d34-0410-b5e6-96231b3b80d8

Check if operand has an allocated reg before requesting it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14550 91177308-0d34-0410-b5e6-96231b3b80d8

* Doxygenify comments
* Tabs-to-spaces

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14549 91177308-0d34-0410-b5e6-96231b3b80d8

Fix broken links

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14548 91177308-0d34-0410-b5e6-96231b3b80d8

bug. point. pod.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14547 91177308-0d34-0410-b5e6-96231b3b80d8

Add much better assertion checking for load and store insts.
Contributed by Vladimir Merzliakov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14546 91177308-0d34-0410-b5e6-96231b3b80d8

Move init methods out of line to enable better assertions, contributed
by Vladimir Merzliakov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14545 91177308-0d34-0410-b5e6-96231b3b80d8

bugpoint command guide has been designated a full-fledged "doc".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14544 91177308-0d34-0410-b5e6-96231b3b80d8

abcd pod document

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14543 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-nm pod format man page.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14542 91177308-0d34-0410-b5e6-96231b3b80d8

Make this pass use a more specific debug message than "Processing:".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14541 91177308-0d34-0410-b5e6-96231b3b80d8

Fix grammar: remove `our' as it no longer makes sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14540 91177308-0d34-0410-b5e6-96231b3b80d8

This is more of an "llvm team" thing by now

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14539 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-db is in alpha stage, this document is a placeholder.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14538 91177308-0d34-0410-b5e6-96231b3b80d8

Fix links to llvmgcc and llvmgxx

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14537 91177308-0d34-0410-b5e6-96231b3b80d8

gccld enters the Hall of POD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14536 91177308-0d34-0410-b5e6-96231b3b80d8

Make the text of the link to llvmgxx.html more appropriate: `llvmg++'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14535 91177308-0d34-0410-b5e6-96231b3b80d8

Handle targets where alignment can be bigger than the size of the data.
Contributed by Vladimir Prus!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14534 91177308-0d34-0410-b5e6-96231b3b80d8

Fix grammar in Stacker doc description.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14533 91177308-0d34-0410-b5e6-96231b3b80d8

Mention llvm-abcd, point out difference between it and `analyze'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14532 91177308-0d34-0410-b5e6-96231b3b80d8

Change format of CommandGuide index page to look like other docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14531 91177308-0d34-0410-b5e6-96231b3b80d8

* `The' isn't necessary in front of LLVM
* Wrap long line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14530 91177308-0d34-0410-b5e6-96231b3b80d8

Fresh from the LLVM baker's oven: opt and analyze pods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14529 91177308-0d34-0410-b5e6-96231b3b80d8

Add llvm-g++ and llvm-gcc pod documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14528 91177308-0d34-0410-b5e6-96231b3b80d8

Fix link to llvmgcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14527 91177308-0d34-0410-b5e6-96231b3b80d8

Make links relative instead of absolute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14525 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure that we destroy the MBB's, with all of their instructions, before
any other data structures

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14524 91177308-0d34-0410-b5e6-96231b3b80d8

Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'s
use them instead of a local LiveVariables numbering

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14523 91177308-0d34-0410-b5e6-96231b3b80d8

Now that we have happy mappings from MBBs->numbers, use them instead of keeping
a LV private map

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14522 91177308-0d34-0410-b5e6-96231b3b80d8

Change MBB autonumber a bit to get the reverse mapping as well as a forward
mapping

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14521 91177308-0d34-0410-b5e6-96231b3b80d8

Instance var no longer exists

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14520 91177308-0d34-0410-b5e6-96231b3b80d8

Change the implementation of the autonumbering for MBB's a bit to provide
the reverse mapping as well as the mapping from MBB->unsigned

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14519 91177308-0d34-0410-b5e6-96231b3b80d8

Start using MBB numbers directly instead of going through the live variables
map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14518 91177308-0d34-0410-b5e6-96231b3b80d8

Instead of building a private numbering of MBB's use brg's nifty auto-numbering.
Also convert df_iterator -> df_ext_iterator for subsequent stuff I'm doing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14517 91177308-0d34-0410-b5e6-96231b3b80d8

Fix testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14516 91177308-0d34-0410-b5e6-96231b3b80d8

-debug option does not exist in a release build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14515 91177308-0d34-0410-b5e6-96231b3b80d8

Fix testcase.  For some reason this was failing only with a release build and
not with a debug build?  Rather testrunner only caught it in that case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14514 91177308-0d34-0410-b5e6-96231b3b80d8

Added a command page for the llvm-abcd tool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14513 91177308-0d34-0410-b5e6-96231b3b80d8

Fix indentation to be 2 spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14512 91177308-0d34-0410-b5e6-96231b3b80d8

* Coalesce the handy CALL* alias opcodes with the standard ones
* Congregate more branch-and-link opcodes together
* Mark FP, CPR, and special registers as volatile across calls

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14511 91177308-0d34-0410-b5e6-96231b3b80d8

* Allow more registers to be allocated from the general register pool
* Define the condition register class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14510 91177308-0d34-0410-b5e6-96231b3b80d8

* Inquire about the number of operands from the instruction directly
* Only check for a register if we are sure the instruction has one allocated

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14509 91177308-0d34-0410-b5e6-96231b3b80d8

visitSetCondInst() takes a parameter of type `SetCondInst'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14508 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed the tutorial to indicate that we needed to use the llvm namespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14507 91177308-0d34-0410-b5e6-96231b3b80d8

Always assume a function may have calls because the printer may add `bl' to get
the PC in a code sequence for global variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14506 91177308-0d34-0410-b5e6-96231b3b80d8

* Don't save LR when outputting globals: it's already saved on the stack once
  for the function
* Registers aren't necessarily sequential wrt their enums, don't rely on it
  when emitting function arguments into sequential registers
* Remove X86-specific comments about AL/BL/AH/BH/EDX/etc
* Add an abort() for an unimplemented signed right shift
* The src operand for a GEP was never emitted!  Fixed.
* We can skip zero-valued GEP indices as they are no-ops.

"Hello, World!" now works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14505 91177308-0d34-0410-b5e6-96231b3b80d8

* Stop using BBNumbering, we don't really need it
* Only increment labelNumber once, because it's used by both Load{hi,lo}Addr
* There is no .bss section on PowerPC
* Use .align 2 instead of other random numbers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14504 91177308-0d34-0410-b5e6-96231b3b80d8

Fix order and line length of fixed bugs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14503 91177308-0d34-0410-b5e6-96231b3b80d8

Set up the prologue and epilogue to be more like the manual and GCC output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14502 91177308-0d34-0410-b5e6-96231b3b80d8

* Use LA instead of LWZ for LoadLoAddr
* Specify the isCall bit and caller-save registers for some call instrs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14501 91177308-0d34-0410-b5e6-96231b3b80d8

Only allocate non-volatile registers R13-31 (for now).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14500 91177308-0d34-0410-b5e6-96231b3b80d8

Implement verification feature.
Ensure output occurs even in the face of an error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14499 91177308-0d34-0410-b5e6-96231b3b80d8

The analyzer code now lives in the bcreader library. The bcanalyzer lib
is no more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14498 91177308-0d34-0410-b5e6-96231b3b80d8

Lower ConstantExpressions before the code generator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14497 91177308-0d34-0410-b5e6-96231b3b80d8

Remove files no longer needed. ConstantReader and InstructionReader were
integrated into Reader. Parser.* was just a bad idea. AnalyzerInternals.h
is no longer needed. ReaderPrimitives.h was integrated into Reader.h and
Reader.cpp. Dumper.cpp was integrated into Analyzer.cpp. ReaderInternals.h
became Reader.h. AnalyzerWrappers.cpp was integerated into
ReaderWrappers.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14496 91177308-0d34-0410-b5e6-96231b3b80d8

This is a slimming down of the previous ReaderInternals.h that just
declares the BytecodeReader class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14495 91177308-0d34-0410-b5e6-96231b3b80d8

MAJOR REWRITE.
- stop passing Buf/BufEnd to every function (now member vars)
- internalize things that used to be in a header file that no one else
  included/needed.
- Remove defunct BCR_TRACE lines
- Standardize error handling with the PARSE_ERROR macro.
- Integrate ConstantReader.cpp and InstructionReader.cpp and reorgnize
  the definition order so that gcc has a chance at optimizing this module
- Standardize case and style of method names.
- Eliminate unneeded header files
- Prepare for Type != Value (bug122) change by splitting Types into their
  own data structures.
- Implement the BytecodeHandler interface calls.
- Provide default implementation of BytecodeHandler interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14494 91177308-0d34-0410-b5e6-96231b3b80d8

Adjustments to allow Bytecode Reading to support the BytecodeHandler
interface which is called by the reader if a BytecodeHandler is provided.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14493 91177308-0d34-0410-b5e6-96231b3b80d8

Merge Dumper.cpp and AnalyzerWrappers.cpp into this file. Also, adjust the
dumping facility to produce useful output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14492 91177308-0d34-0410-b5e6-96231b3b80d8

Analyzer moved to ../Reader directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14491 91177308-0d34-0410-b5e6-96231b3b80d8

Remove newly defunct Analyzer directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14490 91177308-0d34-0410-b5e6-96231b3b80d8

Provide support for the BytecodeHandler interface which will be called by
the bcreader if one is supplied to the bytecode reader's interface
functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14489 91177308-0d34-0410-b5e6-96231b3b80d8

Fix include guard
Adjust comments
Make handlers for constants provide useful information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14488 91177308-0d34-0410-b5e6-96231b3b80d8

Adjust comments to match code.
Allow analysis to return the module created by the bcreader.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14487 91177308-0d34-0410-b5e6-96231b3b80d8

Fix associativity of parameters to assert(): now it actually makes sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14483 91177308-0d34-0410-b5e6-96231b3b80d8

Convert tabs to spaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14482 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix saving LR in function prologue
* Adjust epilogue restore sequence to match the PowerPC documentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14480 91177308-0d34-0410-b5e6-96231b3b80d8

Assembly syntax/comment fixes by Nate Begeman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14479 91177308-0d34-0410-b5e6-96231b3b80d8

Restoring this file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14478 91177308-0d34-0410-b5e6-96231b3b80d8

The code generator should work with unreachable blocks.  If not, then this
is a bug that should be fixed in the code generator, not papered over with
the simplifycfg pass.  Eliminating this makes bugpoint much more useful

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14477 91177308-0d34-0410-b5e6-96231b3b80d8

I believe that the code generator now properly handles dead basic blocks.  If not,
this is a bug, and should be fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14476 91177308-0d34-0410-b5e6-96231b3b80d8

In line with the previous patch, do not assert out if analyzing a dead basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14475 91177308-0d34-0410-b5e6-96231b3b80d8

Do not dereference end iterators.  It hurts when you do that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14474 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a regression from r1.224.  In particular, codegen a cast from double ->
float as a truncation by going through memory.  This truncation was being
skipped, which caused 175.vpr to fail after aggressive register promotion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14473 91177308-0d34-0410-b5e6-96231b3b80d8

Can't print out machine code before it is constructed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14472 91177308-0d34-0410-b5e6-96231b3b80d8

document new pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14471 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the assembly opcode on LOADLoAddr, courtesy of Nate Begeman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14470 91177308-0d34-0410-b5e6-96231b3b80d8

Set isBranch and isTerminator bits on all branch instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14469 91177308-0d34-0410-b5e6-96231b3b80d8

Fix loading and storing PC-relative static variables, courtesy of Nate Begeman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14468 91177308-0d34-0410-b5e6-96231b3b80d8

No need to generate a lazy-linking stub for internal functions, they can be
resolved by the static linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14467 91177308-0d34-0410-b5e6-96231b3b80d8

Do not set the `link' bit when branching to the first BB of a function, as it
will cause an infinite loop.  The link bit is only used for calling functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14466 91177308-0d34-0410-b5e6-96231b3b80d8

Add a link to the CFE build instrs next to the CFE download instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14465 91177308-0d34-0410-b5e6-96231b3b80d8

Building the C FE is a user-level process

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14464 91177308-0d34-0410-b5e6-96231b3b80d8

Fix spacing around function arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14463 91177308-0d34-0410-b5e6-96231b3b80d8

Initial checkin of a simple mod/ref analysis for global variables.  This is
still overly conservative and uses very simple data structures, but it is a
start, and allows elimination of a lot of loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14462 91177308-0d34-0410-b5e6-96231b3b80d8

Add new header

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14461 91177308-0d34-0410-b5e6-96231b3b80d8

Remove unused file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14460 91177308-0d34-0410-b5e6-96231b3b80d8

Remove dead file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14459 91177308-0d34-0410-b5e6-96231b3b80d8

Bad passes are gone

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14458 91177308-0d34-0410-b5e6-96231b3b80d8

These passes are long dead/obsolete.  They never worked in the first place
and are a maintenence burden.  Nuke nuke nuke

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14457 91177308-0d34-0410-b5e6-96231b3b80d8

Remove two dead passes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14456 91177308-0d34-0410-b5e6-96231b3b80d8

Moved IPModRef out of the public include dir

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14455 91177308-0d34-0410-b5e6-96231b3b80d8

Move file to lib/Analysis/DataStructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14454 91177308-0d34-0410-b5e6-96231b3b80d8

Move DependenceGraph.* to lib/Analysis/DataStructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14452 91177308-0d34-0410-b5e6-96231b3b80d8

Moved to lib/analysis/datastructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14451 91177308-0d34-0410-b5e6-96231b3b80d8

Moving to lib/Analysis/DataStructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14450 91177308-0d34-0410-b5e6-96231b3b80d8

Moved to lib/Analysis/DataStructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14449 91177308-0d34-0410-b5e6-96231b3b80d8

Move MemoryDepAnalysis.h into lib/Analysis/DataStructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14448 91177308-0d34-0410-b5e6-96231b3b80d8

Moved to lib/Analysis/DataStructure

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14447 91177308-0d34-0410-b5e6-96231b3b80d8