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92 Commits

Author SHA1 Message Date
Dan Gohman
92dfe2001e Remove isReg, isImm, and isMBB, and change all their users to use 
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41958 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 20:33:02 +00:00
Evan Cheng
0d8d31674f Fixed a typo that's causing a missing kill marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:02:04 +00:00
Evan Cheng
6d6d352ed9 Sometimes a MI can define a register as well as defining a super-register at the 
same time. Do not mark the "smaller" def as dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41871 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 22:34:47 +00:00
Evan Cheng
21b3bf0650 Bugs: missing partial uses and redundant partial defs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-01 20:18:21 +00:00
Dan Gohman
c674a924d4 Don't assume that only Uses can be kills. Defs are marked as kills initially 
when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40131 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 23:17:34 +00:00
Evan Cheng
f99002c143 Dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39979 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 20:01:19 +00:00
Evan Cheng
041040717d Replace std::set with SmallPtrSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 05:23:00 +00:00
Evan Cheng
4efe74129f Properly handle kills of a physical register which has sub-registers that are read by later instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 21:03:35 +00:00
Evan Cheng
8b966d9fd0 When marking a register as being implicitly defined, make sure to clear its partial use info as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37046 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 20:39:18 +00:00
Evan Cheng
56184904cd Eliminate MarkVirtRegAliveInBlock recursion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36943 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-08 19:00:00 +00:00
Devang Patel
1997473cf7 Drop 'const' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-03 01:11:54 +00:00
Devang Patel
3e15bf33e0 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-02 21:39:20 +00:00
Devang Patel
794fd75c67 Do not use typeinfo to identify pass in pass manager. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 21:15:47 +00:00
Evan Cheng
faa510726f Rename findRegisterUseOperand to findRegisterUseOperandIdx to avoid confusion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36483 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-26 19:00:32 +00:00
Evan Cheng
8e29b2192b Minor bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36473 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-26 08:24:22 +00:00
Evan Cheng
05350288a6 Be careful when to add implicit kill / dead operands. Don't add them during / post reg-allocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-26 01:40:09 +00:00
Evan Cheng
ade31f9f07 Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36449 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 21:34:08 +00:00
Evan Cheng
e96f50142e Data structure change to improve compile time (especially in debug mode). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36447 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 19:34:00 +00:00
Evan Cheng
24a3cc4c83 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36434 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 07:30:23 +00:00
Evan Cheng
f44c72817e VarInfo::UsedBlocks is no longer used. Remove. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36250 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 05:04:38 +00:00
Evan Cheng
38b7ca6651 Keep track of number of uses within the function per virtual register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36214 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:22:11 +00:00
Evan Cheng
c6a2410d58 Track the BB's where each virtual register is used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35135 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-17 09:29:54 +00:00
Evan Cheng
e2ee99620f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35041 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-09 09:48:56 +00:00
Evan Cheng
f0e3bb1333 Avoid variable shadowing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35039 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-09 06:02:17 +00:00
Evan Cheng
b371f457b0 Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34428 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 21:49:54 +00:00
Reid Spencer
a284cbf667 For PR1207: 
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 03:20:00 +00:00
Evan Cheng
e15764f28f - Use MRegister::regsOverlap(). 
- Allow LiveVariables to track liveness of more registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34379 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-17 11:09:47 +00:00
Evan Cheng
0c9f92e1ff 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34217 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 01:30:55 +00:00
Bill Wendling
bcd2498f4f Removed more <iostream> includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32321 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 20:28:15 +00:00
Evan Cheng
a6c4c1eb90 Do away with kill / dead maps. Move kill / dead info onto MI's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31759 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-15 20:51:59 +00:00
Evan Cheng
438f7bc67c Add implicit def / use operands to MachineInstr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31633 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-10 08:43:01 +00:00
Reid Spencer
3ed469ccd7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31380 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 20:25:50 +00:00
Bill Wendling
f7da4e939f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30697 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 07:20:20 +00:00
Chris Lattner
d8f44e07b8 Only call isUse/isDef on register operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30118 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-05 20:19:27 +00:00
Chris Lattner
7a3abdc63c Move two methods out of line, make them work when the record for a machine 
instruction includes physregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30061 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-03 00:05:09 +00:00
Chris Lattner
5d8925c7c5 Eliminate RegisterAnalysis. RegisterPass now does all that is necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29921 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-08-27 22:30:17 +00:00
Jim Laskey
cd4317efcf Eliminate data relocations by using NULL instead of global empty list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29250 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-07-21 21:15:20 +00:00
Chris Lattner
4efeab208c Remove a bunch more dead V9 specific stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28094 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-04 01:26:39 +00:00
Chris Lattner
dacceef266 Add a LiveVariables::VarInfo::dump method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25080 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-04 05:40:30 +00:00
Chris Lattner
ac28fbd043 Add section switching to common code generator code. Add a couple of 
asserts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24445 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-21 07:06:27 +00:00
Chris Lattner
657b4d1ac6 Implement LiveVariables.h change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22994 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-24 00:09:33 +00:00
Chris Lattner
44b94c2185 adjust to new live variables interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22992 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-23 23:42:17 +00:00
Chris Lattner
712ad0c36d allow a virtual register to be associated with live-in values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21927 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 07:08:07 +00:00
Misha Brukman
edf128a7fa Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21420 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 22:36:52 +00:00
Chris Lattner
d493b34d31 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21180 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 15:23:25 +00:00
Chris Lattner
2a6e163edc Just in case, handle something that is both a use and a def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19696 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 17:11:51 +00:00
Chris Lattner
d45be36965 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19695 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 17:09:15 +00:00
Chris Lattner
6fcd8d848d Do not use variable sized arrays in C++, they are non-portable. Patch 
contributed by Morten Ofstad


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17217 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-25 18:44:14 +00:00
Reid Spencer
551ccae044 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/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:55:40 +00:00
Alkis Evlogimenos
2e58a41089 Give a better assertion if we see a use before a def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16135 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:34:52 +00:00