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130 Commits

Author SHA1 Message Date
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Evan Cheng
eff332e3e1 Rename findRegisterUseOperand to findRegisterUseOperandIdx to avoid confusion. 
llvm-svn: 36483
 2007-04-26 19:00:32 +00:00
Evan Cheng
22fb2aa782 Minor bug. 
llvm-svn: 36473
 2007-04-26 08:24:22 +00:00
Evan Cheng
cfa2a787f7 Be careful when to add implicit kill / dead operands. Don't add them during / post reg-allocation. 
llvm-svn: 36458
 2007-04-26 01:40:09 +00:00
Evan Cheng
c3b686ff44 Clean up. 
llvm-svn: 36449
 2007-04-25 21:34:08 +00:00
Evan Cheng
e464e596a6 Data structure change to improve compile time (especially in debug mode). 
llvm-svn: 36447
 2007-04-25 19:34:00 +00:00
Evan Cheng
e884f9cb2a Fix for PR1306. 
- A register def / use now implicitly affects sub-register liveness but does
not affect liveness information of super-registers.
- Def of a larger register (if followed by a use later) is treated as
read/mod/write of a smaller register.

llvm-svn: 36434
 2007-04-25 07:30:23 +00:00
Evan Cheng
fbbdb92c9d VarInfo::UsedBlocks is no longer used. Remove. 
llvm-svn: 36250
 2007-04-18 05:04:38 +00:00
Evan Cheng
94e0223e55 Keep track of number of uses within the function per virtual register. 
llvm-svn: 36214
 2007-04-17 20:22:11 +00:00
Evan Cheng
5be8544e8a Track the BB's where each virtual register is used. 
llvm-svn: 35135
 2007-03-17 09:29:54 +00:00
Evan Cheng
dc9f790abd If a virtual register is already marked alive in this block, that means it is 
alive in one of the successor block. Do not add it to the kill list.

llvm-svn: 35041
 2007-03-09 09:48:56 +00:00
Evan Cheng
0049744cd8 Avoid variable shadowing. 
llvm-svn: 35039
 2007-03-09 06:02:17 +00:00
Evan Cheng
e4ab9c032b Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
llvm-svn: 34428
 2007-02-19 21:49:54 +00:00
Reid Spencer
b27fcf3482 For PR1207: 
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.

llvm-svn: 34399
 2007-02-19 03:20:00 +00:00
Evan Cheng
897d82c747 - Use MRegister::regsOverlap(). 
- Allow LiveVariables to track liveness of more registers.

llvm-svn: 34379
 2007-02-17 11:09:47 +00:00
Evan Cheng
21a7c64466 Allow any MachineBasicBlock (not just the entry block) to have live-in physical 
registers. Make sure liveinterval analysis is correctly creating live ranges
for them.

llvm-svn: 34217
 2007-02-13 01:30:55 +00:00
Bill Wendling
4d1444725b Removed more <iostream> includes 
llvm-svn: 32321
 2006-12-07 20:28:15 +00:00
Evan Cheng
d79427b22c Do away with kill / dead maps. Move kill / dead info onto MI's. 
llvm-svn: 31759
 2006-11-15 20:51:59 +00:00
Evan Cheng
013597778d Add implicit def / use operands to MachineInstr. 
llvm-svn: 31633
 2006-11-10 08:43:01 +00:00
Reid Spencer
4bafa71dc1 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Bill Wendling
9b15198af4 Fix for PR929. The PHI nodes were being gone through for each instruction 
in a successor block for every block...resulting in some O(N^k) algorithm
which wasn't very good for performance. Calculating this information up
front and keeping it in a map made it much faster.

llvm-svn: 30697
 2006-10-03 07:20:20 +00:00
Chris Lattner
0fad1515ee Only call isUse/isDef on register operands 
llvm-svn: 30118
 2006-09-05 20:19:27 +00:00
Chris Lattner
cc5b4bff8f Move two methods out of line, make them work when the record for a machine 
instruction includes physregs.

llvm-svn: 30061
 2006-09-03 00:05:09 +00:00
Chris Lattner
f530302eda Eliminate RegisterAnalysis. RegisterPass now does all that is necessary. 
llvm-svn: 29921
 2006-08-27 22:30:17 +00:00
Jim Laskey
085a8477a7 Eliminate data relocations by using NULL instead of global empty list. 
llvm-svn: 29250
 2006-07-21 21:15:20 +00:00
Chris Lattner
a39a7f900f Remove a bunch more dead V9 specific stuff 
llvm-svn: 28094
 2006-05-04 01:26:39 +00:00
Chris Lattner
f00c43e105 Add a LiveVariables::VarInfo::dump method 
llvm-svn: 25080
 2006-01-04 05:40:30 +00:00
Chris Lattner
f78eca1416 Add section switching to common code generator code. Add a couple of 
asserts.

llvm-svn: 24445
 2005-11-21 07:06:27 +00:00
Chris Lattner
e7c3b71a28 Implement LiveVariables.h change 
llvm-svn: 22994
 2005-08-24 00:09:33 +00:00
Chris Lattner
7e3441972b adjust to new live variables interface 
llvm-svn: 22992
 2005-08-23 23:42:17 +00:00
Chris Lattner
5cd760d12d allow a virtual register to be associated with live-in values. 
llvm-svn: 21927
 2005-05-13 07:08:07 +00:00
Misha Brukman
774e55c446 Remove trailing whitespace 
llvm-svn: 21420
 2005-04-21 22:36:52 +00:00
Chris Lattner
1a9c8fc64a Consider the livein/out set for a function, allowing targets to not have to 
use ugly imp_def/imp_uses for arguments and return values.

llvm-svn: 21180
 2005-04-09 15:23:25 +00:00
Chris Lattner
e97ed92617 Just in case, handle something that is both a use and a def. 
llvm-svn: 19696
 2005-01-19 17:11:51 +00:00
Chris Lattner
2cb11bd2b9 When an instruction moves, make sure to update the VarInfo::Kills list as 
well as all of teh other stuff in livevar. This fixes the compiler crash
on fourinarow last night.

llvm-svn: 19695
 2005-01-19 17:09:15 +00:00
Chris Lattner
84b07af401 Do not use variable sized arrays in C++, they are non-portable. Patch 
contributed by Morten Ofstad

llvm-svn: 17217
 2004-10-25 18:44:14 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Alkis Evlogimenos
ad6f0f57fa Give a better assertion if we see a use before a def. 
llvm-svn: 16135
 2004-09-01 22:34:52 +00:00
Alkis Evlogimenos
4f0c0a1adc Remove dead code. 
llvm-svn: 16077
 2004-08-28 22:43:31 +00:00
Alkis Evlogimenos
03913413da Use newly added API in MRegisterInfo and don't expose the allocatable 
register set anymore. Its users now use the MRegisterInfo API.

llvm-svn: 16061
 2004-08-26 22:23:32 +00:00
Chris Lattner
22728e2f27 There is no need to store the MBB along with the MI any more, we can now 
ask instructions for their parent.

llvm-svn: 14998
 2004-07-19 07:04:55 +00:00
Chris Lattner
6c34920110 Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead) 
llvm-svn: 14997
 2004-07-19 06:55:21 +00:00
Chris Lattner
53fa752649 Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent() 
llvm-svn: 14996
 2004-07-19 06:26:50 +00:00
Chris Lattner
456583c52c Add checks to ensure that there are no unreachable blocks in the function 
llvm-svn: 14725
 2004-07-09 16:44:37 +00:00
Chris Lattner
93bf3a5985 Now that MachineFunction/MachineBasicBlock keep a mapping of blocks to ID #'s 
use them instead of a local LiveVariables numbering

llvm-svn: 14523
 2004-07-01 06:15:32 +00:00
Chris Lattner
ae4f21e30a Start using MBB numbers directly instead of going through the live variables 
map.

llvm-svn: 14518
 2004-07-01 04:29:47 +00:00
Chris Lattner
0bb956cda7 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.

llvm-svn: 14517
 2004-07-01 04:24:29 +00:00
Misha Brukman
0a98455ab9 Convert tabs to spaces. 
llvm-svn: 14373
 2004-06-24 21:31:16 +00:00
Chris Lattner
0046ea7105 Adjust to new TargetMachine interface 
llvm-svn: 13956
 2004-06-02 05:57:12 +00:00
Chris Lattner
b37490a331 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.

llvm-svn: 13444
 2004-05-10 05:12:43 +00:00