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

Move PgmDependenceGraph.h out of the public include hierarchy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14446 91177308-0d34-0410-b5e6-96231b3b80d8

Allow saving and restoring of double and float registers.
Allow copying of float registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14445 91177308-0d34-0410-b5e6-96231b3b80d8

Add FITOS, FITOD, and F{ADD,SUB,MUL,DIV}{S,D}.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14444 91177308-0d34-0410-b5e6-96231b3b80d8

Implement InstCombine/add.ll:test21

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14443 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14442 91177308-0d34-0410-b5e6-96231b3b80d8

Support printing constant pool indices.
If we see an "unknown operand", abort so it's easier to fix it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14441 91177308-0d34-0410-b5e6-96231b3b80d8

Trim whitespace.
Support cast of ints (and narrower) to float and double.
Support cast double to double (using load and store).
Abort if we see a CallInst or SetCondInst with long/fp args, instead
of producing bad code.
Support add, sub, mul, div of float and double.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14440 91177308-0d34-0410-b5e6-96231b3b80d8

Now that the SparcV9 specific MachineCodeForInstruction class uses it's own
map on the side, Instruction no longer has to be Annotable.  This reduces
the size of the Instruction class by another 4 bytes (on a 32-bit system).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14439 91177308-0d34-0410-b5e6-96231b3b80d8

Do not find these ugly sparc-specific objects by using the annotation API on
instructions.  Instead, keep a map of instructions -> MCFI objects in the
already sparc-specific class MachineFunctionInfo.  This will slow down the
sparc backend a bit, but it does not penalize the rest of LLVM!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14438 91177308-0d34-0410-b5e6-96231b3b80d8

This class is no longer an annotation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14437 91177308-0d34-0410-b5e6-96231b3b80d8

Add a map of MachineCodeForInstruction objects to MachineFunctionInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14436 91177308-0d34-0410-b5e6-96231b3b80d8

Fold iType into Value::VTy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14435 91177308-0d34-0410-b5e6-96231b3b80d8