Commit Graph

11887 Commits

Author SHA1 Message Date
Brian Gaeke
d657c42dce Start NextMBBNumber out at zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13515 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:35:23 +00:00
Brian Gaeke
0bcb1ad7be Add non-const MachineBasicBlock::getParent() accessor method.
MBBs start out as #-1. When a MBB is added to a MachineFunction, it
gets the next available unique MBB number. If it is removed from a
MachineFunction, it goes back to being #-1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13514 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:35:22 +00:00
Brian Gaeke
f460f1679e Add a NextMBBNumber field w/ incrementing accessor method, for
function-level unique numbering of MBBs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13513 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:35:21 +00:00
Brian Gaeke
c07d8d8a26 Add a Number field w/ accessor method, for function-level unique numbering
of MBBs.

Add non-const MachineBasicBlock::getParent() accessor method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13512 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:35:20 +00:00
Chris Lattner
5f4d473d89 Make the subsubsections stand out a bit more
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13511 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:28:08 +00:00
Misha Brukman
54dfb2a826 These images have been moved to img/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13510 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:26:39 +00:00
Misha Brukman
e849a1ae2d Use the images in the img/ directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13509 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:26:16 +00:00
Misha Brukman
b9e41eb483 Finally, switch to a stylesheet that makes the documentation easier on the eyes
and consistent with the LLVM website.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13508 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:20:56 +00:00
Misha Brukman
db8d5b256a Centralize images in this dir; add lines.gif from website for consistent
formatting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13507 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:20:13 +00:00
Misha Brukman
f6a0407ee5 Make file use stylesheets and be HTML-4.01 (Strict)-compliant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13506 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 20:57:43 +00:00
Misha Brukman
3669299acd Made document HTML-4.01 (Strict)-compliant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13505 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 19:52:00 +00:00
Misha Brukman
b9be2bf270 Make file standard-compliant once again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13504 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 19:25:59 +00:00
Misha Brukman
828737355a Made file comply with HTML-4.01 (Strict)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13503 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 19:21:57 +00:00
Chris Lattner
7507c297d0 Turn the block extractor on by default now that it basically works, eliminating the option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13502 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 19:02:44 +00:00
Misha Brukman
836db50c33 Made file HTML-4.01 (Strict)-compliant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13501 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 18:57:54 +00:00
Misha Brukman
6a2b310ce2 Made to be HTML-4.01 (Strict)-compliant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13500 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 18:49:47 +00:00
Misha Brukman
c53aefb5ac Made to be HTML-4.01 (Strict) -compliant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13499 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 18:42:35 +00:00
Misha Brukman
6c16c4bfd2 Add proper footer since this file is HTML-4.01 compliant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13498 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 18:37:22 +00:00
Misha Brukman
85234aca74 Make document HTML-4.01 (Strict) compliant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13497 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 18:31:21 +00:00
Misha Brukman
f6acb51bf3 Fix grammar: remove `the' before LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13496 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 18:02:00 +00:00
Misha Brukman
b69715e707 * Make the document format follow the stringent purple standards (like the rest
of the documentation)
* Do not make the link text be the link itself, use some keywords
* Make doc use stylesheets and HTML markup for lists instead of definitions
* Shorten page by not making multiple lines per link with description + link of
  the same name as the target


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13495 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 18:00:48 +00:00
Chris Lattner
2b10b08ad6 Pass boolean constants into function calls more efficiently, generating:
mov DWORD PTR [%ESP + 4], 1

instead of:

        mov %EAX, 1
        mov DWORD PTR [%ESP + 4], %EAX


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13494 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 16:35:04 +00:00
Chris Lattner
587992721c Do not pass in the same argument to the extracted function more than once, and
give the extracted function a more useful name than just foo_code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13493 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 16:26:18 +00:00
Chris Lattner
68bee938e5 Check to see if all blocks are extractible first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13491 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 16:08:01 +00:00
Chris Lattner
d99e1d3afb Implement support for code extracting basic blocks that have a return
instruction in them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13490 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 16:07:41 +00:00
Chris Lattner
e746ad512e Implement splitting of PHI nodes, allowing block extraction of BB's that have
PHI node entries from multiple outside-the-region blocks.  This also fixes
extraction of the entry block in a function.  Yaay.

This has successfully block extracted all (but one) block from the score_move
function in obsequi (out of 33).  Hrm, I wonder which block the bug is in.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13489 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 15:29:13 +00:00
Chris Lattner
bf749367cb * Pull some code out into the definedInRegion/definedInCaller methods
* Add a stub for the severSplitPHINodes which will allow us to bbextract
  bb's with PHI nodes in them soon.
* Remove unused arguments from findInputsOutputs
* Dramatically simplify the code in findInputsOutputs.  In particular,
  nothing really cares whether or not a PHI node is using something.
* Move moveCodeToFunction to after emitCallAndSwitchStatement as that's the
  order they get called.
* Fix a bug where we would code extract a region that included a call to
  vastart.  Like 'alloca', calls to vastart must stay in the function that
  they are defined in.
* Add some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13482 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 06:01:40 +00:00
Chris Lattner
346be7f5bc Generate substantially better code when there are a limited number of exits
from the extracted region.  If the return has 0 or 1 exit blocks, the new
function returns void.  If it has 2 exits, it returns bool, otherwise it
returns a ushort as before.

This allows us to use a conditional branch instruction when there are two
exit blocks, as often happens during block extraction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13481 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 04:14:24 +00:00
Chris Lattner
5b01e298ed Two minor improvements:
1. Get rid of the silly abort block.  When doing bb extraction, we get one
     abort block for every block extracted, which is kinda annoying.
  2. If the switch ends up having a single destination, turn it into an
     unconditional branch.

I would like to add support for conditional branches, but to do this we will
want to have the function return a bool instead of a ushort.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13478 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 03:22:33 +00:00
Chris Lattner
b83c0f3f63 Don't leave dead bytecode.output files around if the optimizer/block extractor crashes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13477 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 02:55:45 +00:00
Misha Brukman
b584c5d812 This file has been superseded by docs/index.html .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13476 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 02:48:30 +00:00
Chris Lattner
2290e75406 Implement the final missing bits for block extractor support. Now bugpoint
can extract basic blocks up to the limit of the block extractor implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13475 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 02:43:24 +00:00
Misha Brukman
300e74b43f Add link to Valgrind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13472 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 00:57:24 +00:00
Chris Lattner
5e783ab0b5 Implement basic block extraction for the miscompilation debugger. This still needs
two things: the FIXME in ExtractBlocks needs to be implemented, and the basic block
extractor itself needs to have enough bugs fixed for this to be more or less
useful.

Until the time that this is generally useful, it is hidden behind the new bugpoint
-enable-block-extraction option.  I hope to get the FIXME done tonight.

Also of note, this patch adds a -extract-bbs option to bugpoint which can be used
to debug the block extractor.  (hint hint Misha :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13471 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 21:54:13 +00:00
Chris Lattner
1c2f68631e A class that is meant to be a base class should have a virtual destructor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13470 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 20:41:07 +00:00
Chris Lattner
8436c21ad1 Add a note to make sure the program is memory correct
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13464 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 19:34:27 +00:00
John Criswell
19fa3f51ee Added obsequi.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13462 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 19:29:59 +00:00
Brian Gaeke
379b380a8b Use inttypes.h, which exists on all of Linux, Solaris and Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13461 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 16:14:53 +00:00
Chris Lattner
3528a4be8e Unbreak the build on X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13460 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 14:08:54 +00:00
Brian Gaeke
a7750fc61f Squash warnings on Solaris/sparc... the test suite is not working for me so I
can't be sure if these are OK, but they look OK.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13459 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 07:45:28 +00:00
Brian Gaeke
2928a169bb Do not hardcode the name of gcc, because its full pathname may have been
specified by top-level configure


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13458 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 07:42:58 +00:00
Brian Gaeke
8c603ef339 Do not depend on the path to bash
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13457 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 07:42:19 +00:00
Brian Gaeke
c66d8b0aca Include <sys/types.h> to get the definition of int64_t on Solaris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13456 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-11 07:18:02 +00:00
Chris Lattner
8abf69374e Switch this from using an std::map to using a DenseMap. This speeds up
phi-elimination from 0.6 to 0.54s on kc++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13454 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 19:17:36 +00:00
Chris Lattner
80e20eb487 Use a new VRegPHIUseCount to compute uses of PHI values by other phi values
in the basic block being processed.  This fixes PhiElimination on kimwitu++
from taking 105s to taking a much more reasonable 0.6s (in a debug build).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13453 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 19:06:37 +00:00
Chris Lattner
791f896d9f Now that we use an ilist of machine instructions, iterators are more robust
than before.  Because this is the case, we can compute the first non-phi
instruction once when de-phi'ing a block.  This shaves ~4s off of
phielimination of _Z7yyparsev in kimwitu++ from 109s -> 105s.  There are
still much more important gains to come.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13452 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 18:47:18 +00:00
Chris Lattner
c81e6bae88 Fix a fairly serious pessimizaion that was preventing us from efficiently
compiling things like 'add long %X, 1'.  The problem is that we were switching
the order of the operands for longs even though we can't fold them yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13451 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 15:15:55 +00:00
Chris Lattner
3699e05fb2 Bug fixed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13450 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 14:28:09 +00:00
Chris Lattner
6d3848df7e Patch to fix PR337. Make sure to mark all aliased physical registers as used
when we see a read of a register.  This is important in cases like:

AL = ...
AH = ...

   = AX

The read of AX must make both the AL and AH defs live until the use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13444 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 05:12:43 +00:00
Chris Lattner
02eac39359 Testcase for PR337, which was reduced by Reid Spencer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13443 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 05:11:24 +00:00