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7527 Commits

Author SHA1 Message Date
Chris Lattner
d555da52f4 Death to tabs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15563 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-07 07:07:57 +00:00
Brian Gaeke
16ca1947fd dumpSavedState has outlived its usefulness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15555 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-06 19:11:43 +00:00
Alkis Evlogimenos
8fabb621b1 Split assertion to two in order to give better assertion messages. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15543 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-06 14:33:37 +00:00
Chris Lattner
3ea934668b Changes commited for Nate Begeman: 
Use a PowerPC specific prolog epilog inserter to control where spilled
callee save regs are placed on the stack.
Get rid of implicit return address stack slot, save return address reg
(LR) in appropriate slot
Improve code generated for functions that don't have calls or access
globals


Note from Chris: PowerPCPEI will eventually be eliminated, once the
functionality is merged into CodeGen/PrologEpilogInserter.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15536 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-06 06:58:50 +00:00
Brian Gaeke
406e8cbb43 Update the To-Do list according to my notes + assertions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15535 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-06 04:38:13 +00:00
John Criswell
aaf10ab5a2 Added Louis Gerbarg. Louis is given credit in the CREDITS.TXT file, so I 
assume Louis also holds copyright.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15534 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-05 23:46:27 +00:00
John Criswell
2c2ba762a3 Add additional copyright notice for the PowerPC backend. 
Thanks Nate!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15531 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-05 20:36:00 +00:00
Misha Brukman
2f947865cb Simplify makefile by combining all TableGen dependencies into one variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15527 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-05 18:34:15 +00:00
Misha Brukman
3c7071447c PowerPC is a real target now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15522 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-05 18:22:30 +00:00
Alkis Evlogimenos
8243976b69 Make GlobalVariable constructor assert when an initializer is of 
incorrect type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15519 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-05 11:28:34 +00:00
Reid Spencer
9a7e0c5366 Turn a use of intptr_t into a reinterpret_cast<uint64_t> instead to get 
rid of compilation warnings on some platforms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15512 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 22:56:46 +00:00
Chris Lattner
aad2deb17c Fix another minor problem that exists if you ahve multiple functions with 
nonunifiable types but the same name.  Down with PR411!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15511 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 22:39:54 +00:00
Chris Lattner
82b5b219dd Fix a typeo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15510 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 22:29:05 +00:00
Chris Lattner
d2da229ce3 Add a hack to work around a problem my changes exposed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15509 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 22:26:13 +00:00
Misha Brukman
1411a67060 Hand-propagate the constant TARGET_NAME which was making lines wrap anyway 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15506 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 21:48:45 +00:00
Misha Brukman
7a750e1ff5 * Remove unnecessary comment 
* Fix alignment of code
* Tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15505 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 21:48:00 +00:00
Misha Brukman
dee0f9b94c Align dependencies so they don't hurt the eyes to look at them 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15504 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 21:37:41 +00:00
Misha Brukman
7338ae5b88 Remove unused instruction classes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15501 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 21:18:57 +00:00
Misha Brukman
db01356c15 Make tablegen targets depend on PowerPCInstrFormats.td as well 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15500 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 21:18:36 +00:00
Chris Lattner
c3d12f0823 Fix a latent bug exposed by my recent changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15498 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 18:50:09 +00:00
Chris Lattner
0a4f85e9fd It is not possible to catch SIGKILL, don't bother trying. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15496 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 18:14:24 +00:00
Chris Lattner
6173cd9c16 getValues does not exist 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15495 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 17:29:14 +00:00
Chris Lattner
cdf7012860 getValues is gone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15494 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 17:27:27 +00:00
Alkis Evlogimenos
706515727c Clean up whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15490 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 09:46:56 +00:00
Alkis Evlogimenos
1a8ea01f01 Convert indentation to 2 spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15489 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 09:46:26 +00:00
Alkis Evlogimenos
15876bb28c Stop using getValues(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15487 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 08:44:43 +00:00
Chris Lattner
868bbf35b0 Fix a major regression in my previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15486 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 08:30:43 +00:00
Alkis Evlogimenos
cc7ba49d85 Stop using getValues(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15485 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 08:08:13 +00:00
Brian Gaeke
1c313c959a Get rid of the only use of TargetInstrInfo::getResultPos(), a deprecated method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15483 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 08:05:27 +00:00
Alkis Evlogimenos
9e4c681354 Stop using getValues(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15482 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 08:02:59 +00:00
Chris Lattner
5a837defff FindGlobalNamed used to take 2.92s out of 8.39s running a profile build of 
gccld -disable-opt on 252.eon.

This patch deletes it and replaces it with a map.  The proper fix for this
is to fix PR411, but this will do in the short term.

gccld on eon now takes 5.51s, which is 50% faster than before this patch. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15480 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:44:58 +00:00
Brian Gaeke
57195d1321 Include SparcV9TmpInstr.h to pick up the def. of TmpInstruction, 
instead of InstrSelection.h, which is dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15476 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:34:57 +00:00
Brian Gaeke
f7d4efb3ed Tighten up some whitespace. Include SparcV9TmpInstr.h to pick up 
the def. of TmpInstruction, instead of InstrSelection.h, which is
dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15475 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:34:44 +00:00
Brian Gaeke
aceb7d8b97 Include SparcV9BurgISel.h, to pick up the definition of 
createSparcV9BurgInstSelector().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15474 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:30:04 +00:00
Brian Gaeke
98ac7ac507 Include SparcV9TmpInstr.h instead of llvm/CodeGen/InstrSelection.h, to pick 
up the definition of class TmpInstruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15473 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:29:53 +00:00
Brian Gaeke
bd0a183fec Include SparcV9BurgISel.h, because PreSelection uses routines from within 
the SparcV9 BURG instruction selector.  Eww!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15472 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:29:40 +00:00
Brian Gaeke
8943e68bff Add a Doxygen comment, and inline the constructor (which is now almost empty). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15471 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:29:28 +00:00
Brian Gaeke
587cd1aa3c The InstrForest data type has moved from llvm/CodeGen/InstrForest.h 
to SparcV9InstrForest.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15470 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:29:16 +00:00
Brian Gaeke
d5ce4116b2 Add a new file containing just TmpInstruction and its implementation. 
Many other pieces of the SparcV9 backend want to use TmpInstruction, but
don't need any other instruction selector baggage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15469 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:29:04 +00:00
Brian Gaeke
10b11920c9 All the SparcV9 BURG instruction selector pieces have been collected into the 
new file SparcV9BurgISel.cpp, with exposed interfaces in SparcV9BurgISel.h.
The InstrSelection directory is now dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15468 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:28:51 +00:00
Chris Lattner
7b0c84dcf5 I swear I compiled this, really I did. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15467 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:28:06 +00:00
Chris Lattner
c003628a61 Factor some code out, no substantial change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15466 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 07:05:54 +00:00
Chris Lattner
fe41069070 Concisify some code 
Do not call FindGlobalNamed when we know we will ignore the result (because
we are not going to link a static symbol anyway).  This speeds up
gccld -disable-opt on 252.eon from 8.63s to 8.39s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15465 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 06:05:47 +00:00
Chris Lattner
6823c9f9ff Implement a FIXME, by not searching linearly through a map to remove an 
element.  This speeds up the bytecode reader from 12.86s to 8.72s on 252.eon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15463 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 04:48:01 +00:00
Chris Lattner
46c2b3a5ec Squelch warnings in release mode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15460 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 03:51:55 +00:00
Chris Lattner
07d7c9d9c5 Add a cast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15457 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 02:27:17 +00:00
Chris Lattner
1c06891186 Change SymbolTable::insertEntry to be more careful about how many map 
lookups it does.  This shaves another 5% off of bcreading 252.eon.  Note that
the proper solution to this problem is to fix PR411, but that will have to
wait until later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15455 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 00:37:31 +00:00
Reid Spencer
69105f33c1 Add a --version option for every tool that prints out: 
Low Level Virtual Machine ($PACKAGE_NAME) $PACKAGE_VERSION


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15454 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 00:36:06 +00:00
Chris Lattner
2c6c14d1a5 Make getGlobalTableValue not use getTypeSlot, this speeds up the bc reader 
by 5% on eon


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15452 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 00:19:23 +00:00
Chris Lattner
45b5dd2918 Do not do a linear std::find to reconstruct information we had, but later threw 
away.  This speeds up by .bc reader by 30% in a profile build on 252.eon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15450 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-03 23:41:28 +00:00
Misha Brukman
68f3459994 Remove unused opcodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15447 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-03 20:23:44 +00:00
Chris Lattner
82953784fc Move this file out of the top-level docs directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15429 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-03 04:15:02 +00:00
Misha Brukman
37dcae63eb * Use simpler instruction templates to define instructions 
* Fix several extended opcodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15423 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 21:58:52 +00:00
Misha Brukman
c681a4e476 Replace patterns 0, 4, and 5 with simpler heirarchical definitions that use the 
official PowerPC instruction format lingo: X- and D-form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15422 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 21:56:35 +00:00
Chris Lattner
f0431b0d42 Hide this option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15415 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 20:16:21 +00:00
Misha Brukman
28791dd17f Separate instruction formats from instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15414 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 16:54:54 +00:00
Misha Brukman
6a90f8202b Add #include <cstdlib> and abort() to silence a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 14:02:21 +00:00
Misha Brukman
82fd8d8cdd * ceil() requires #include <cmath> for compilation 
* Alphabetize #includes
* Fix some lines to fit within 80 cols


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15412 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-02 13:59:10 +00:00
Chris Lattner
1484089bbf Fix a regression in InstCombine/xor.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15410 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 19:42:59 +00:00
Chris Lattner
bcdda01210 Fix a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15409 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 19:31:30 +00:00
Tanya Lattner
e0b531cc40 Adding ModuloScheduling so that it compiles for everyone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15408 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 19:00:17 +00:00
Chris Lattner
fc752713d7 Convert all I<> instructions to asmformat. 
Delete the 'name' field of all instructions that have asmformats.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15403 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 09:52:59 +00:00
Chris Lattner
4ae131e5da Dereferencing end() is bad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15402 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 09:51:42 +00:00
Chris Lattner
33c23ddf8a Add some immediate forms, make name optional 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15401 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 09:36:44 +00:00
Chris Lattner
a35ce87e2e Eliminate 3 of the X86 printImplicit* flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15398 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 08:23:17 +00:00
Chris Lattner
1626c507e8 Get rid of 3 of the 4 'printimplicit' flags. Implicit operands are now 
explicitly listed in the asm string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15397 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 08:22:29 +00:00
Chris Lattner
0e967d4f48 Convert more instructions over to the asmprinter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15396 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 08:13:11 +00:00
Chris Lattner
25369cfa2b Handle registers a bit more efficiently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15395 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 08:12:41 +00:00
Chris Lattner
068758e518 give FP stack registers names 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15394 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 08:12:13 +00:00
Chris Lattner
ffff70827c Switch more instructions over to using the asmprinter. Fix bugs in the emission 
of in/out instructions (missing %'s on registers).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15393 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 07:44:35 +00:00
Chris Lattner
b12ee503f7 The tblgen'erated asmparser wants a way to print operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15392 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 07:43:46 +00:00
Chris Lattner
3fa861ac6c Rename the Printer class -> X86AsmPrinter. 
Include the tablegenerated assembly writer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 06:02:08 +00:00
Chris Lattner
8f945d7756 Factor a bunch of the rules and add support for generating the asmwriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15388 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 06:01:32 +00:00
Chris Lattner
96563df090 Specify an asm string and operands lists for a bunch of instructions. 
This only really covers no-operand instructions so far.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15387 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 06:01:00 +00:00
Chris Lattner
c139203f04 Add the 'ops' marker, add an AsmString initializer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15383 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 04:40:43 +00:00
Chris Lattner
1ab7c5b5e8 Completely disable the pattern isel until it is more substantial. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15380 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 03:28:02 +00:00
Chris Lattner
4ad25e432d Entirely eliminate all patterns and expanders from this file. We shall go 
with an incremental approach rather than a revolutionary approach.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15379 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 03:25:01 +00:00
Chris Lattner
bbe664c8fb Move the 'Expander' node to later in the file, with the other experimental 
stuff.  The pattern becomes a list, add some stuff, add some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15378 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 03:23:34 +00:00
Chris Lattner
bb737edcc3 Remove obsolete file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15377 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 03:19:28 +00:00
Alkis Evlogimenos
f978a1db51 Make OptimizeBlock take a MachineFunction::iterator instead of a 
MachineBasicBlock* as a parameter so that nxext() and prior() helper
functions can work naturally on it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15376 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 19:24:41 +00:00
Chris Lattner
7f74340733 Next on a pointer increments the pointer, not an iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15375 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 18:40:36 +00:00
Alkis Evlogimenos
9fd332392c Use next() helper to make code more readable. Use 
MachineFunction::iterator instead of MachineBasicBlock* to avoid
dereferencing end iterators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15373 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 15:14:29 +00:00
Alkis Evlogimenos
dd04583781 Use MachineFunction::iterator instead of a MachineBasicBlock* because 
FallThrough maybe == to MF.end().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15372 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 15:03:52 +00:00
Alkis Evlogimenos
31e155e610 Align breaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15371 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 10:05:44 +00:00
Chris Lattner
1e5fdf8ba0 Expose this as a functionpass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15369 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 10:01:58 +00:00
Chris Lattner
21ab22e475 Implement a simple target-independent CFG cleanup pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15368 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 10:01:27 +00:00
Chris Lattner
167cf33e1d Add breaks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15365 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 09:53:31 +00:00
Alkis Evlogimenos
6103c1703c Simplify code a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15364 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 09:44:32 +00:00
Alkis Evlogimenos
02a453074d Correctly spell 'unconditional'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15363 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 09:41:44 +00:00
Alkis Evlogimenos
36f506eddb Implement insertGoto and reverseBranchCondition for the X86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15362 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 09:38:47 +00:00
Chris Lattner
0f6eab32d0 I'm pretty sure that ba is branch always, which is a barrier. Brg should 
check this :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15357 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 02:24:37 +00:00
Chris Lattner
62cce39515 Mark barrier instructions. Execution does not fall through uncond branches 
or return intructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15356 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 02:10:53 +00:00
Chris Lattner
2a809f6567 New flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15354 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 02:07:07 +00:00
Tanya Lattner
0a88d2d8b9 Updated ModuloScheduling. It makes it all the wya through register allocation on the new code!! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15351 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-30 23:36:10 +00:00
Misha Brukman
88f8f9226f * Conditional save/restore of LR disabled as it's not quite correct 
* sumarray2d fixed: large fixed-size alloca
* make is now compileable
* Re-organized tests to fit them under proper headings

Patch by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15347 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-30 15:53:09 +00:00
Misha Brukman
a9c528f0aa Do not mark LR as callee-save: not quite correctly done. Patch: Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15346 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-30 15:51:51 +00:00
Misha Brukman
4ffddc5228 * Temporarily suspend LR save/restore optimization as it is not quite correct 
* Implement large fixed-size allocas            Entire patch by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15345 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-30 15:50:45 +00:00
Misha Brukman
cb6267bc60 Fix De Morgan's name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15343 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-30 12:50:08 +00:00
Chris Lattner
acd1f0fcb3 Start using the PatternMatcher a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15342 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-30 07:50:03 +00:00
Brian Gaeke
365f54c7bc Convert a few assertions with side-effects into regular old runtime checks. 
These side-effects seem to make a difference when using llc -march=sparcv9
in Release mode (i.e., with -DNDEBUG); when they are left out, lots of
instructions just get dropped on the floor, because they never end up
in the schedule.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15339 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 21:31:20 +00:00
Misha Brukman
78c038d0cc Fix #includes of i*.h => Instructions.h as per PR403. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15337 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:30:57 +00:00
Misha Brukman
47b14a4a6a Fix #includes of i*.h => Instructions.h as per PR403. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15334 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:30:56 +00:00
Chris Lattner
879313ae3a Fix #includes of i*.h => Instructions.h as per PR403: 
http://llvm.cs.uiuc.edu/PR403 .


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15333 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:23:00 +00:00
Chris Lattner
4ab78e0489 Header moved 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15332 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:15:38 +00:00
Chris Lattner
9670eecf33 Fix #includes of i*.h => Instructions.h as per PR403: 
http://llvm.cs.uiuc.edu/PR403 .


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15331 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:11:37 +00:00
Misha Brukman
d8e1eea678 Fix #includes of i*.h => Instructions.h as per PR403. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15328 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 17:05:13 +00:00
Misha Brukman
44336292fc Fix #includes of i*.h files => Instructions.h as per PR403 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15327 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 16:53:53 +00:00
Alkis Evlogimenos
91366a8541 Merge i*.cpp definitions into Instructions.cpp as part of bug403. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15326 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 12:33:25 +00:00
Alkis Evlogimenos
eb62bc77b6 Merge i*.h headers into Instructions.h as part of bug403. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15325 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 12:17:34 +00:00
Chris Lattner
730b1ad2c4 Fix test/Regression/Analysis/BasicAA/2004-07-28-MustAliasbug.llx 
This also fixes the miscompilation of MallocBench/gs with dead store
elimination enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15324 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 07:56:39 +00:00
Brian Gaeke
246b40ae7a Get rid of a few dead method declarations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15323 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 06:43:10 +00:00
Brian Gaeke
a308f80155 Get rid of calls to void llvm::printSet(const ValueSet &). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15322 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 06:43:09 +00:00
Brian Gaeke
db7c40db10 Get rid of calls to void llvm::printSet(const ValueSet &). 
Use LiveRange's iterator types and operations instead of ValueSet's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15321 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 06:43:08 +00:00
Brian Gaeke
fb8f856f14 Don't derive from ValueSet to implement class LiveRange; instead, use a 
SetVector<Value *> data member.
Add << operator for LiveRanges (a dumb one, for now.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15320 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 06:43:06 +00:00
Brian Gaeke
988f5b530a Fix a few typoes and grammaroes in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15319 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 04:25:43 +00:00
Brian Gaeke
fc63adb1b9 Remove mustSaveAcrossCalls flag, which isn't ever read, and its mutator, 
markForSaveAcrossCalls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15317 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-29 04:15:36 +00:00
Chris Lattner
83660c5aed Minor corrections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15309 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 20:18:53 +00:00
Brian Gaeke
b2f30a3792 TargetInstrInfo::hasOperandInterlock() is always true, because it is 
never overridden by any target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15308 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 19:24:48 +00:00
Misha Brukman
8b88d906a2 Add notes on bug involving casting ulong -> double, thanks to Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15307 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 19:16:10 +00:00
Misha Brukman
a0af38c46a Simplify loading (un)signed constants to registers, patch by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15306 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 19:13:49 +00:00
Misha Brukman
b7697a6dd2 Remove an extra 8 byte distance penalty. Patch by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15305 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 19:13:07 +00:00
Misha Brukman
f63bc199c6 Find longs by type, not by their primitive size being 64. Patch by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15304 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 19:12:24 +00:00
Misha Brukman
8b29776d68 LI can only take signed values, so values > 32767 can only be loaded with ORI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15299 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 00:56:04 +00:00
Misha Brukman
b9b8ba58e7 Reorganize tests to place them in proper directories. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15298 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 00:55:12 +00:00
Misha Brukman
56d38c6ca1 UnitTests 2003-05-26-Shorts and 2003-07-09-LoadShorts have been fixed; 
2003-05-22-VarSizeArray is broken.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15297 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 00:01:41 +00:00
Misha Brukman
af313fb188 Fix printing of immediate operands by looking at their operand types in 
the TargetInstrInfo.  This fixes UnitTests 2003-05-26-Shorts and
2003-07-09-LoadShorts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15296 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 00:00:48 +00:00
Misha Brukman
8c02c1cbb8 Renamed files: 
* PowerPCReg.td => PowerPCRegisterinfo.td
* PowerPCInstrs.td => PowerPCInstrInfo.td


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15295 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 23:29:16 +00:00
Brian Gaeke
de0ceb58ba ConstantTypeMustBeLoaded has been incorporated into SparcV9PreSelection, its 
only user.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15294 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 21:43:38 +00:00
Brian Gaeke
a770e0041b This was the only user of TargetInstrInfo::ConstantTypeMustBeLoaded(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15293 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 21:11:20 +00:00
Robert Bocchino
71698285e8 This change fixed a bug in the function visitMul. The prior version 
assumed that a constant on the RHS of a multiplication was either an
IntConstant or an FPConstant.  It checked for an IntConstant and then,
if it did not find one, did a hard cast to an FPConstant.  That code
would crash if the RHS were a ConstantExpr that was neither an
IntConstant nor an FPConstant.  This version replaces the hard cast
with a dyn_cast.  It performs the same way for IntConstants and
FPConstants but does nothing, instead of crashing, for constant
expressions.

The regression test for this change is 2004-07-27-ConstantExprMul.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15291 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 21:02:21 +00:00
Brian Gaeke
eb6c29bbfd Get rid of the (apparently non-working) filePrinterEmitter which is added in 
debug mode.  Its only effect seems to be the creation of an empty file...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15289 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 19:37:37 +00:00
Misha Brukman
4ce5ce25e8 Branch selection support implemented by Nate Begeman for long branches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15288 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:43:04 +00:00
Misha Brukman
ab96790f2c Correctly print out long branches, assert on finding pseudo instr COND_BRANCH 
Patch by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15286 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:40:39 +00:00
Misha Brukman
bd2c870539 Run the branch selection pass right before the asm printer. 
Patch by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15285 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:39:34 +00:00
Misha Brukman
596c23134b Remove empty unused method processFunctionBeforeFrameFinalized() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15284 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:38:40 +00:00
Misha Brukman
f228fa0580 Add COND_BRANCH pseudo instruction, patch by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15283 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:35:54 +00:00
Misha Brukman
fa20a6dfd7 Build COND_BRANCHes which may become long or short, decided by a later pass. 
Patch by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15282 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:35:23 +00:00
Misha Brukman
8aebe9f96c Moved definition of invertPPCBranchOpcode() into PowerPCInstrInfo class. 
Patch by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15281 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:34:11 +00:00
Misha Brukman
999d9cfde5 Add PowerPCBranchSelector to discover which are `long' branches. 
Contributed by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15280 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 18:33:06 +00:00
Brian Gaeke
c998981505 TargetInstrInfo::getNOPOpCode() has been replaced by a reference to V9::NOP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15279 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:43:24 +00:00
Brian Gaeke
a376ee2d13 Convert many of the virtual TargetInstrInfo methods used as helper 
functions in SparcV9InstrSelection and SparcV9PreSelection into regular
old global functions.  As it happens, none of them really have anything
to do with TargetInstrInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15278 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:43:23 +00:00
Brian Gaeke
1b4aeb5cec As it happens, none of these TargetInstrInfo methods which are only 
used in the SparcV9 backend really have anything to do with
TargetInstrInfo, so we're converting them into regular old global
functions and moving their declarations to SparcV9InstrSelectionSupport.h.
(They're mostly used as helper functions for SparcV9InstrSelection.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15277 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:43:22 +00:00
Brian Gaeke
96d4bf7aee Make the create...() functions for some of these passes return a FunctionPass *. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15276 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:43:21 +00:00
Misha Brukman
c91bc30436 Fixed saving/restoring LR unconditionally, only done as necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15275 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:17:48 +00:00
Misha Brukman
9a771d55fe Save and restore LR just like any other register and ONLY if we actually modify 
it (due to calls or globals access).  We now compile `void empty(){}' to `blr'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15274 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:17:18 +00:00
Misha Brukman
e862f306fb LR is a 32-bit int reg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15273 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:15:32 +00:00
Misha Brukman
53f567817c MovePCtoLR (which is `bl' in disguise) modifies LR implicitly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15272 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:15:05 +00:00
Misha Brukman
08cc7b30bb Register LR is callee-saved 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15271 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:14:34 +00:00
Misha Brukman
435c785803 Add IMPLICIT_DEF of LR for branch-and-link instrs (calls and global accesses) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15270 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:13:58 +00:00
Chris Lattner
b0015c510f nuke pointless -debug output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15267 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 08:03:18 +00:00
Chris Lattner
105d26acb4 Fix conservative assumption, which was quite broken. Also, notice that 
functions known to not access memory (like sin/cos) don't access memory! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15264 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 07:46:26 +00:00
Chris Lattner
eaa243039b Fix hoisting of void typed values, e.g. calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15263 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 07:38:32 +00:00
Chris Lattner
70c7d03d1c alloca void makes no sense 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15262 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 07:30:02 +00:00
Chris Lattner
63e9930498 Remove a bogus assertion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15261 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 07:22:21 +00:00
Chris Lattner
fe98f27e80 Complete rewrite of this pass to be faster, use less memory, be easier to 
understand, and more accurate to boot!  This implements
GlobalModRef/purecse.ll over the previous impl.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15260 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 06:40:37 +00:00
Chris Lattner
bcb11cf132 Simplify code and silence warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15255 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 02:34:49 +00:00
Chris Lattner
efe30ef790 Use context-sensitive alias analysis to avoid pessimization in clients of 
AliasSetTracker (dse and licm).  This implements
DeadStoreElimination/context-sensitive.llx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15254 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 02:20:26 +00:00
Chris Lattner
db5b80a7f2 Make basicaa a bit more aggressive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15252 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 02:18:52 +00:00
Chris Lattner
e181b94309 basic-aa can actually provide simple mod/ref info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15251 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 02:13:55 +00:00
Chris Lattner
05e47987ee This was implemented back in march 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15250 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 01:59:42 +00:00
Misha Brukman
ab640a5728 Do not store the stack pointer if the stack size is 0. 
Also, convert C-style comments to C++ and make sure code wraps at 80 cols.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15245 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 22:00:26 +00:00
Misha Brukman
3ada3e3f82 ADDI can take several forms, including: 
addi r1, r2, 0
  addi r1, <frame index #n>, 0

so we must check for the second parameter being a register for this instruction
to be considered a reg-to-reg copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15244 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 21:50:38 +00:00
Misha Brukman
8790d47453 assert() on MachineInstr properties instead of checking them dynamically 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15243 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 21:35:58 +00:00
Misha Brukman
774a297c83 * Recognize `addi r1, r2, 0' a move instruction 
* List formats of instructions currently recognized as moves


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15242 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 21:29:00 +00:00
Misha Brukman
8606aea117 Fix indentation: should be 2 spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15240 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 18:48:58 +00:00
Misha Brukman
91b5ca838a Fix file header as it has been renamed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15239 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 18:45:48 +00:00
Misha Brukman
c6d398abbb Renamed files to have the `X86' prefix for uniqueness purposes. 
All CVS history was renamed, the *,v were copied over.  No worries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15238 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 18:43:11 +00:00
Misha Brukman
b097f216b0 * Rewrote casts 
* Implemented GEP folding
* Dynamically output global address stuff once per function
* Fix casting fp<->short/byte

Patch contributed by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15237 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 18:13:24 +00:00
Misha Brukman
cf8d244394 Increment the label number in runOnFunction() rather than while printing out 
some instruction.  Patch by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15236 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 16:28:33 +00:00
Misha Brukman
bb966a4a59 More notes on bugs, unimplemented features, and suggested code improvements. 
Written by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15235 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 16:23:55 +00:00
Misha Brukman
3c616b45e7 Fix subtracting values > 2^15 in the prologue/epilogue, by Nate Begeman. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15234 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 16:22:52 +00:00
Chris Lattner
a000279a7d Implement DeadStoreElim/alloca.llx by observing that allocas are dead at the 
end of the function (either return or unwind)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15232 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 06:14:11 +00:00
Chris Lattner
61d462760b Add some new methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15230 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 05:50:23 +00:00
Chris Lattner
595ee7ec26 Throttle back indvar substitution from creating multiplies in loops. This is bad bad bad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15227 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 02:47:12 +00:00
Chris Lattner
8d65a06a3e Fix bug in previous patch :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15226 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 01:40:20 +00:00
Chris Lattner
badf091b47 Fix an extremely serious regression that was causing LLVM basic blocks to be 
scrambled around almost at random, having really bad effects on icache locality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15225 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-26 01:22:59 +00:00
Chris Lattner
1d78516c65 Fix a serious bug in the double constant reader. In particular, because 
(At[3] << 24) is an int type and it is being coerced to uint64_t, it was
getting sign extended, causing us to get FFFFFFFFxxxxxxxx constants all of
the time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15224 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 23:15:44 +00:00
Chris Lattner
a9d790c831 Temporarily disable this code, as it is emitting LLVM_NAN("nan") which results in a call to the 
glibc 'nan' function because the initializer is not a string.  This breaks when used in a global
initializer.  Try compiling this testcase for example:

%X = global float <some nan value>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15223 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 22:36:35 +00:00
Reid Spencer
cddc86f27c Avoid use of size(), which counts, in favor of other mechanisms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15221 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 21:44:54 +00:00
Reid Spencer
ada1618afa Always write FP values correctly. 
Adjust for new Module.h interface for dependent libraries.
Excise unused backwards compatibility flag.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15220 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 21:36:26 +00:00
Reid Spencer
7d146e1107 Don't create a backwards compatibility flag for something that was a 
regression bug introduced in release 1.2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15219 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 21:32:51 +00:00
Reid Spencer
5ac8812c54 Adjust to new Module.h interface for dependent libraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15218 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 21:32:02 +00:00
Reid Spencer
feaf10e571 Adjust to new Module.h interface for dependent libraries 
Remove mem leaks resulting from not freeing parse strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15217 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 21:30:51 +00:00
Reid Spencer
c9a1f0dcdd Adjust to new Module.h interface for dependent libraries 
Only write the target triple and deplibs if they are non-empty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15216 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 21:29:43 +00:00
Chris Lattner
34a1005737 Fix a latent bug in the AliasSetTracker that was exposed by the FreeInst additions and broke a bunch of programs last night. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15214 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 18:32:01 +00:00
Reid Spencer
801db47373 bug 263: 
Ensure the list of libraries is cleared.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15212 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 18:08:57 +00:00
Reid Spencer
83f6a77c8f bug 263: 
Add ability to write target triple and dependent libraries information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15211 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 18:08:18 +00:00
Reid Spencer
ad89bd6a1a bug 263: 
- encode/decode target triple and dependent libraries
bug 401:
- fix encoding/decoding of FP values to be little-endian only
bug 402:
- initial (compatible) cut at 24-bit types instead of 32-bit
- reduce size of block headers by 50%
Other:
- cleanup Writer by consolidating to one compilation unit, rem. other files
- use a std::vector instead of std::deque so the buffer can be allocated
  in multiples of 64KByte chunks rather than in multiples of some smaller
  (default) number.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15210 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 18:07:36 +00:00
Reid Spencer
0be13e7f14 bug 263: 
Provide parsing for the target triple and dependent libraries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15209 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 17:58:28 +00:00
Reid Spencer
3cd2fe3d2f bug 263: 
Provide new tokens for target triples and dependent libraries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15208 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 17:56:00 +00:00
Chris Lattner
70e9b59b0e * Substantially simplify how free instructions are handled (potentially fixing 
a bug in DSE).
* Delete dead operand uses iteratively instead of recursively, using a
  SetVector.
* Defer deletion of dead operand uses until the end of processing, which means
  we don't have to bother with updating the AliasSetTracker.  This speeds up
  DSE substantially.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15204 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 11:09:56 +00:00
Alkis Evlogimenos
5a0a1c2cba Add some comments to the backtracking code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15200 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 08:10:33 +00:00
Chris Lattner
a9e2f3d0ab Free instructions kill values too. This implements DeadStoreElim/free.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15199 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 07:58:38 +00:00
Chris Lattner
5c88260f70 Add support for free instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15197 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 07:57:37 +00:00
Chris Lattner
c25b55a5b2 Fix the sense of joinable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15196 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 07:47:25 +00:00
Chris Lattner
d67e439241 Remove linux/solaris specific stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15195 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 07:34:00 +00:00
Chris Lattner
f542649f1b This patch makes use of the infrastructure implemented before to safely and 
aggressively coallesce live ranges even if they overlap.  Consider this LLVM
code for example:

int %test(int %X) {
        %Y = mul int %X, 1      ;; Codegens to Y = X
        %Z = add int %X, %Y
        ret int %Z
}

The mul is just there to get a copy into the code stream.  This produces
this machine code:

 (0x869e5a8, LLVM BB @0x869b9a0):
        %reg1024 = mov <fi#-2>, 1, %NOREG, 0    ;; "X"
        %reg1025 = mov %reg1024                 ;; "Y"  (subsumed by X)
        %reg1026 = add %reg1024, %reg1025
        %EAX = mov %reg1026
        ret

Note that the life times of reg1024 and reg1025 overlap, even though they
contain the same value.  This results in this machine code:

test:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, %EAX
        add %EAX, %ECX
        ret

Another, worse case involves loops and PHI nodes.  Consider this trivial loop:
testcase:

int %test2(int %X) {
entry:
        br label %Loop
Loop:
        %Y = phi int [%X, %entry], [%Z, %Loop]
        %Z = add int %Y, 1
        %cond = seteq int %Z, 100
        br bool %cond, label %Out, label %Loop
Out:
        ret int %Z
}

Because of interactions between the PHI elimination pass and the register
allocator, this got compiled to this code:

test2:
        mov %ECX, DWORD PTR [%ESP + 4]
.LBBtest2_1:
***     mov %EAX, %ECX
        inc %EAX
        cmp %EAX, 100
***     mov %ECX, %EAX
        jne .LBBtest2_1

        ret

Or on powerpc, this code:

_test2:
        mflr r0
        stw r0, 8(r1)
        stwu r1, -60(r1)
.LBB_test2_1:
        addi r2, r3, 1
        cmpwi cr0, r2, 100
***     or r3, r2, r2
        bne cr0, .LBB_test2_1

***     or r3, r2, r2
        lwz r0, 68(r1)
        mtlr r0
        addi r1, r1, 60
        blr 0



With this improvement in place, we now generate this code for these two
testcases, which is what we want:


test:
        mov %EAX, DWORD PTR [%ESP + 4]
        add %EAX, %EAX
        ret

test2:
        mov %EAX, DWORD PTR [%ESP + 4]
.LBBtest2_1:
        inc %EAX
        cmp %EAX, 100
        jne .LBBtest2_1 # Loop
        ret

Or on PPC:

_test2:
        mflr r0
        stw r0, 8(r1)
        stwu r1, -60(r1)
.LBB_test2_1:
        addi r3, r3, 1
        cmpwi cr0, r3, 100
        bne cr0, .LBB_test2_1

        lwz r0, 68(r1)
        mtlr r0
        addi r1, r1, 60
        blr 0


Static numbers for spill code loads/stores/reg-reg copies (smaller is better):

em3d:       before: 47/25/26         after: 44/22/24
164.gzip:   before: 433/245/310      after: 403/231/278
175.vpr:    before: 3721/2189/1581   after: 4144/2081/1423
176.gcc:    before: 26195/8866/9235  after: 25942/8082/8275
186.crafty: before: 4295/2587/3079   after: 4119/2519/2916
252.eon:    before: 12754/7585/5803  after: 12508/7425/5643
256.bzip2:  before: 463/226/315      after: 482:241/309


Runtime perf number samples on X86:

gzip: before: 41.09 after: 39.86
bzip2: runtime: before: 56.71s after: 57.07s
gcc: before: 6.16 after: 6.12
eon: before: 2.03s after: 2.00s


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15194 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 07:11:19 +00:00
Chris Lattner
d3a205eab5 Make a method const, no functionality changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15193 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 06:23:01 +00:00
Chris Lattner
1d6dc97463 I think that V8 should coallesce registers, don't you? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15192 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 06:19:04 +00:00
Alkis Evlogimenos
89756ea109 Use name.empty() instead of testing against equality with the empty 
string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15191 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 06:16:52 +00:00
Alkis Evlogimenos
83949fcf7c Disallow creation of named values of type void. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15190 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 06:07:15 +00:00
Chris Lattner
62d4e16a05 Fix a bug where we incorrectly value numbered the first PHI definition the 
same as the PHI use.  This is not correct as the PHI use value is different
depending on which branch is taken.  This fixes espresso with aggressive
coallescing, and perhaps others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15189 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 05:45:18 +00:00
Chris Lattner
6925a9f9cc Fix a bug in the range remover 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15188 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 05:43:53 +00:00
Chris Lattner
c83e40d1b6 Add debugging output for joining assignments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15187 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-25 03:24:11 +00:00
Alkis Evlogimenos
3f86193cd2 Remove implementation of operator= and make it private so that it is 
not used accidentally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15172 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 18:55:15 +00:00
Alkis Evlogimenos
a1613db62f Change std::map<unsigned, LiveInterval*> into a std::map<unsigned, 
LiveInterval>. This saves some space and removes the pointer
indirection caused by following the pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15167 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 11:44:15 +00:00
Chris Lattner
c47b6677ae obvious fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15162 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 07:51:27 +00:00
Chris Lattner
21ddf17ff6 Get rid of the printout from the low-level system interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15161 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 07:50:48 +00:00
Chris Lattner
e96b2ed211 Pass timeouts into the low level "execute program with timeout" function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15160 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 07:49:11 +00:00
Chris Lattner
de0213b9f5 Add support for killing the program if it executes for too long. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15158 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 07:41:31 +00:00
Chris Lattner
060913cce4 whoops, didn't mean to remove this 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15157 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 04:32:22 +00:00
Chris Lattner
deb9971061 In the joiner, merge the small interval into the large interval. This restores 
us back to taking about 10.5s on gcc, instead of taking 15.6s!  The net result
is that my big patches have hand no significant effect on compile time or code
quality.  heh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15156 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 03:41:50 +00:00
Chris Lattner
4df98e546d Completely eliminate the intervals_ list. instead, the r2iMap_ maintains 
ownership of the intervals.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15155 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 03:32:06 +00:00
Chris Lattner
7ac2d3146a Big change to compute logical value numbers for each LiveRange added to an 
Interval.  This generalizes the isDefinedOnce mechanism that we used before
to help us coallesce ranges that overlap.  As part of this, every logical
range with a different value is assigned a different number in the interval.
For example, for code that looks like this:

0  X = ...
4  X += ...
  ...
N    = X

We now generate a live interval that contains two ranges: [2,6:0),[6,?:1)
reflecting the fact that there are two different values in the range at
different positions in the code.

Currently we are not using this information at all, so this just slows down
liveintervals.  In the future, this will change.

Note that this change also substantially refactors the joinIntervalsInMachineBB
method to merge the cases for virt-virt and phys-virt joining into a single
case, adds comments, and makes the code a bit easier to follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15154 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 02:59:07 +00:00
Chris Lattner
0f4c076140 Add a new differingRegisterClasses method 
make overlapsAliases take pointers instead of references
fix indentation


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15153 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 02:53:43 +00:00
Chris Lattner
abf295fc6c Little stuff: 
* Fix comment typeo
* add dump() methods
* add a few new methods like getLiveRangeContaining, removeRange & joinable
  (which is currently the same as overlaps)
* Remove the unused operator==

Bigger change:

* In LiveInterval, instead of using a boolean isDefinedOnce to keep track of
  if there are > 1 definitions in a particular interval, keep a counter,
  NumValues to keep track of exactly how many there are.
* In LiveRange, add a new ValId element to indicate which of the numbered
  values each LiveRange belongs to.   We now no longer merge LiveRanges if
  they are of differing value ID's even if they are neighbors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15152 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-24 02:52:23 +00:00
Misha Brukman
1be339ac4c Running list of bugs, unimplemented features, currently broken tests, until we 
have a nightly tester set up for PowerPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15147 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 22:37:22 +00:00
Misha Brukman
4722544855 Eliminate spurious empty space; make code easier to page through. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15146 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 22:35:49 +00:00
Misha Brukman
1245c35935 Simplify boolean test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15145 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 21:43:26 +00:00
Chris Lattner
f35fef7060 More minor changes: 
* Inline some functions
 * Eliminate some comparisons from the release build

This is good for another .3 on gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15144 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 21:24:19 +00:00
Misha Brukman
b160d1f9f7 Implement casting a floating point to 32-bit unsigned value 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15143 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 20:32:59 +00:00
Chris Lattner
b26c215c05 Change addRange and join to be a little bit smarter. In particular, we don't 
want to insert a new range into the middle of the vector, then delete ranges
one at a time next to the inserted one as they are merged.

Instead, if the inserted interval overlaps, just start merging.  The only time
we insert into the middle of the vector is when we don't overlap at all.  Also
delete blocks of live ranges if we overlap with many of them.

This patch speeds up joining by .7 seconds on a large testcase, but more
importantly gets all of the range adding code into addRangeFrom.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15141 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 19:38:44 +00:00
Brian Gaeke
7ff4006f82 Fix problem with inserting FunctionPasses that depend on ImmutablePasses 
(e.g., LICM) into FunctionPassManagers. The problem is that we were
using a C-style cast to cast required analysis passes to PassClass*, but
if it's a FunctionPassManager, and the required analysis pass is an
ImmutablePass, the types aren't really compatible, so the C-style cast
causes a crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15140 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 19:35:50 +00:00
Chris Lattner
aa14147cd6 Search by the start point, not by the whole interval. This saves some 
comparisons, reducing linscan by another .1 seconds :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15139 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 18:40:00 +00:00
Chris Lattner
e6ad392802 New helper method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15138 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 18:39:12 +00:00
Chris Lattner
4dc54ae0d9 Speedup debug builds a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 18:38:52 +00:00
Chris Lattner
ebd7e6c54d Instead of searching for a live interval pair, search for a location. This gives 
a very modest speedup of .3 seconds compiling 176.gcc (out of 20s).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15136 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 18:13:24 +00:00
Chris Lattner
a3b8b5c0e0 Rename LiveIntervals.(cpp|h) -> LiveIntervalAnalysis.(cpp|h) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15135 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 17:56:30 +00:00
Chris Lattner
fb449b9ea5 Pull the LiveRange and LiveInterval classes out of LiveIntervals.h (which 
will soon be renamed) into their own file.  The new file should not emit
DEBUG output or have other side effects.  The LiveInterval class also now
doesn't know whether its working on registers or some other thing.

In the future we will want to use the LiveInterval class and friends to do
stack packing.  In addition to a code simplification, this will allow us to
do it more easily.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15134 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 17:49:16 +00:00
Misha Brukman
e2eceb5c73 * Codegen of GEPs dramatically improved by folding multiplies and adds 
* Function pointers implemented correctly using appropriate stubs

Contributed by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15133 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 16:08:20 +00:00
Chris Lattner
ec2bc64505 Improve comments a bit 
Use an explicit LiveRange class to represent ranges instead of an std::pair.
This is a minor cleanup, but is really intended to make a future patch simpler
and less invasive.

Alkis, could you please take a look at LiveInterval::liveAt?  I suspect that
you can add an operator<(unsigned) to LiveRange, allowing us to speed up the
upper_bound call by quite a bit (this would also apply to other callers of
upper/lower_bound).  I would do it myself, but I still don't understand that
crazy liveAt function, despite the comment. :)

Basically I would like to see this:
    LiveRange dummy(index, index+1);
    Ranges::const_iterator r = std::upper_bound(ranges.begin(),
                                                ranges.end(),
                                                dummy);

Turn into:
    Ranges::const_iterator r = std::upper_bound(ranges.begin(),
                                                ranges.end(),
                                                index);


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15130 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 08:24:23 +00:00
Chris Lattner
94881e8c45 Update live intervals more accurately for PHI elim. This slightly reduces 
the live intervals for some registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15125 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 05:27:43 +00:00
Chris Lattner
fe1630b43e Force coallescing of live ranges that have a single definition, even if they 
interfere.  Because these intervals have a single definition, and one of them
is a copy instruction, they are always safe to merge even if their lifetimes
interfere.  This slightly reduces the amount of spill code, for example on
252.eon, from:

 12837 spiller               - Number of loads added
  7604 spiller               - Number of stores added
  5842 spiller               - Number of register spills
 18155 liveintervals         - Number of identity moves eliminated after coalescing

to:

  12754 spiller               - Number of loads added
   7585 spiller               - Number of stores added
   5803 spiller               - Number of register spills
  18262 liveintervals         - Number of identity moves eliminated after coalescing

The much much bigger win would be to merge intervals with multiple definitions
(aka phi nodes) but this is not that day.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 05:26:05 +00:00
Misha Brukman
9accb24c89 Bool alignment on MacOSX/PowerPC is 4 bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15122 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 01:11:46 +00:00
Misha Brukman
4c14f33844 * Change class of BoolTy back to cInt 
* Fix indentation back to 2 spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15121 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 01:11:19 +00:00
Misha Brukman
c8e8764705 * Add BoolAlignment to TargetData, default is 1 byte, size 1 byte 
* Convert tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15120 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-23 01:09:52 +00:00
Chris Lattner
a7bfbba856 costmetic changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15118 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 23:05:12 +00:00
Chris Lattner
e8850f476e Fix broken -debug printing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15115 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 21:54:22 +00:00
Chris Lattner
4951d48a16 The default has not been 'simple' for AGES! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15114 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 21:46:02 +00:00
Chris Lattner
cc46c4fcee Remove some (LARGE) abandoned code for the release. If this is ever needed 
again in the future, it can be resurrected out of CVS


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15112 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 21:30:35 +00:00
Chris Lattner
0bafa9818b Make linear scan the default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15111 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 18:42:00 +00:00
Misha Brukman
2ed17cadb4 * Change bool from cInt to cByte (for now) 
* Don't allow negative immediates to users of unsigned immediates
* Fix long compares
* Support <const int>, op as a potential immediate candidate
* Fix sign extension of short and byte loads
* Fix and improve integer casts
* Fix passing of doubles as vararg functions

Patch contributed by Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15109 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:58:04 +00:00
Alkis Evlogimenos
77c4c4da24 Put variable name to a separate line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15108 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:30:33 +00:00
Misha Brukman
75fa4e4f99 Fix indentation and wrap code at 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15107 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:26:23 +00:00
Alkis Evlogimenos
d3014edc51 Sorting is now handled by both linearscan and iterative scan so live 
intervals need not be sorted anymore. Removing this redundant step
improves LiveIntervals running time by 5% on 176.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15106 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:18:10 +00:00
Alkis Evlogimenos
82c24fba8a Fit to 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15105 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 14:29:31 +00:00
Alkis Evlogimenos
53eb37340c Some compile time improvements resulting in a 1sec speedup in the 5sec 
compilation of gcc:

* Use vectors instead of lists for the intervals sets
* Use a heap for the unhandled set to keep intervals always sorted and
  makes insertions back to the heap very fast (compared to scanning a
  list)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15103 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 08:14:44 +00:00
Chris Lattner
0fb56afab1 This is a trivial dead store elimination pass. It very very simple and 
can be improved in many ways.  But: stop laughing, even with -basicaa it
deletes 15% of the stores in 252.eon :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15101 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 08:00:28 +00:00
Chris Lattner
b8a31ace2c Clean up reference counting to stop "leaking" alias sets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15099 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 07:58:18 +00:00
Chris Lattner
199edde707 Remove extraneous punctuation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15098 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 05:51:56 +00:00