Chris Lattner
53280cd26e
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);
llvm-svn: 15130
2004-07-23 08:24:23 +00:00
Chris Lattner
2d75978bc6
Update live intervals more accurately for PHI elim. This slightly reduces
...
the live intervals for some registers.
llvm-svn: 15125
2004-07-23 05:27:43 +00:00
Chris Lattner
b549420cd0
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.
llvm-svn: 15124
2004-07-23 05:26:05 +00:00
Chris Lattner
84b93bb107
costmetic changes
...
llvm-svn: 15118
2004-07-22 23:05:12 +00:00
Chris Lattner
6b2b26c6f2
Fix broken -debug printing
...
llvm-svn: 15115
2004-07-22 21:54:22 +00:00
Chris Lattner
8799dd9e2e
The default has not been 'simple' for AGES!
...
llvm-svn: 15114
2004-07-22 21:46:02 +00:00
Chris Lattner
68426e5ba6
Make linear scan the default
...
llvm-svn: 15111
2004-07-22 18:42:00 +00:00
Alkis Evlogimenos
c73b76a0a8
Put variable name to a separate line.
...
llvm-svn: 15108
2004-07-22 15:30:33 +00:00
Misha Brukman
6dd644e017
Fix indentation and wrap code at 80 cols
...
llvm-svn: 15107
2004-07-22 15:26:23 +00:00
Alkis Evlogimenos
61546f3e5b
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.
llvm-svn: 15106
2004-07-22 15:18:10 +00:00
Alkis Evlogimenos
52cff0adf0
Fit to 80 columns.
...
llvm-svn: 15105
2004-07-22 14:29:31 +00:00
Alkis Evlogimenos
1a876fab64
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)
llvm-svn: 15103
2004-07-22 08:14:44 +00:00
Chris Lattner
f2b976bdd5
Remove extraneous punctuation
...
llvm-svn: 15098
2004-07-22 05:51:56 +00:00
Alkis Evlogimenos
120187935d
Use reverse iterators when updating the vector, since scanning from
...
the end will reduce erase() runtimes.
llvm-svn: 15093
2004-07-22 02:16:53 +00:00
Chris Lattner
6ff6021712
That funny 2-address lowering pass can also cause multiple definitions,
...
fortunately, they are easy to handle if we know about them. This patch fixes
some serious pessimization of code produced by the linscan register allocator.
llvm-svn: 15092
2004-07-22 00:04:14 +00:00
Chris Lattner
adbbc62f82
Minor cleanups
...
llvm-svn: 15091
2004-07-21 23:17:57 +00:00
Brian Gaeke
902dcf0729
These files don't need to include <iostream> since they include "Support/Debug.h".
...
llvm-svn: 15089
2004-07-21 20:50:33 +00:00
Alkis Evlogimenos
c74c7d1101
Fix analysis name.
...
llvm-svn: 15078
2004-07-21 17:23:44 +00:00
Alkis Evlogimenos
701071a144
Clear spilled list at once. Remove unused vector.
...
llvm-svn: 15073
2004-07-21 12:00:10 +00:00
Alkis Evlogimenos
a3efc03731
Change std::list into a std::vector for IntervalSets. This reduces
...
compile time for 176.gcc from 5.6 secs to 4.7 secs.
llvm-svn: 15072
2004-07-21 09:46:55 +00:00
Alkis Evlogimenos
fbc436bbce
Improve file comment.
...
llvm-svn: 15069
2004-07-21 08:28:39 +00:00
Alkis Evlogimenos
d524e5bdf2
Add Iterative scan register allocator.
...
llvm-svn: 15068
2004-07-21 08:24:35 +00:00
Alkis Evlogimenos
c03ccc225b
Linearscan is no longer experimental.
...
llvm-svn: 15067
2004-07-21 08:18:50 +00:00
Alkis Evlogimenos
7eb2b1892b
Add function to clear all virtual->physical mappings but not assigned
...
stack slots. This is in preparation for the iterative linear scan.
llvm-svn: 15032
2004-07-20 13:28:17 +00:00
Alkis Evlogimenos
f616d8328c
Remove unneeded functor. LiveInterval has a < operator.
...
llvm-svn: 15031
2004-07-20 10:20:03 +00:00
Alkis Evlogimenos
12a71ea03e
Remove dead code.
...
llvm-svn: 15011
2004-07-19 23:35:55 +00:00
Chris Lattner
15dfdb4e01
Fix a bug that occurs when the last instruction in a range is dead
...
llvm-svn: 15005
2004-07-19 15:16:53 +00:00
Chris Lattner
c8fb1fb5bb
When joining intervals, join intervals in deeply nested loops first. This
...
is a simple change, but seems to improve code a little. For example, on
256.bzip2, we went from 75.0s -> 73.33s (2% speedup).
llvm-svn: 15004
2004-07-19 14:40:29 +00:00
Chris Lattner
d10d373ce9
Split joinIntervals into two methods
...
llvm-svn: 15003
2004-07-19 14:08:10 +00:00
Chris Lattner
aef6c2a350
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
a74cf5a7d9
Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead)
...
llvm-svn: 14997
2004-07-19 06:55:21 +00:00
Chris Lattner
5027de35ed
Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent()
...
llvm-svn: 14996
2004-07-19 06:26:50 +00:00
Chris Lattner
a618e13c83
Two changes, both very significant:
...
* vreg <-> vreg joining now works, enable it unconditionally when joining
is enabled (which is the default).
* Fix a serious pessimization of spill code where we were saying that a
spilled DEF operand was live into the subsequent instruction. This allows
for substantially better code when spilling starts to happen.
llvm-svn: 14993
2004-07-19 05:55:50 +00:00
Chris Lattner
c56f90d156
See comments. The live intervals were not coming out of the spiller in sorted
...
order, causing the inactive list in the linearscan list to get unsorted, which
basically fuxored everything up severely.
These seems to fix the joiner, so with more testing I will enable it by default.
llvm-svn: 14992
2004-07-19 05:15:10 +00:00
Chris Lattner
8c8144b958
Fix assertion to not dereference end!
...
llvm-svn: 14991
2004-07-19 05:02:09 +00:00
Chris Lattner
70f8dca59b
Add some asserts that the list of intervals returned by addIntervalsForSpills
...
is sorted. This is not the case currently, which is causing no end of
problems.
llvm-svn: 14990
2004-07-19 04:47:36 +00:00
Chris Lattner
4f2e2a3f80
remove the mbbi2mbbMap_, which was just keeping track of mbb order anyway.
...
Heavily refactor handleVirtualRegisterDef, adding comments and making it more
efficient. It is also much easier to follow and convince ones self that it is
correct :)
Add -debug output to the joine, showing the result of joining the intervals.
llvm-svn: 14989
2004-07-19 02:15:56 +00:00
Chris Lattner
05920e7a70
fill comment to 80 cols
...
remove map that is not needed
llvm-svn: 14988
2004-07-19 02:13:59 +00:00
Chris Lattner
e62af95bef
It looks like physref->virtreg joining is working fine. Enable it by default
...
but make virtreg->virtreg joining stay off by default
llvm-svn: 14916
2004-07-17 21:51:25 +00:00
Chris Lattner
34afafc190
Fix IA64 compatibility
...
llvm-svn: 14866
2004-07-16 00:06:01 +00:00
Chris Lattner
cc36c670e8
Use new macro
...
llvm-svn: 14865
2004-07-16 00:04:54 +00:00
Chris Lattner
fcdab1b5f5
Fix for PR341
...
llvm-svn: 14845
2004-07-15 02:40:04 +00:00
Chris Lattner
d47909e00a
Add checks to ensure that there are no unreachable blocks in the function
...
llvm-svn: 14725
2004-07-09 16:44:37 +00:00
Misha Brukman
b47ab7ae1c
* Doxygenify comments
...
* Fix spacing, grammar in comment
* Make code layout consistent
* Wrap code at 80 cols
* Delete spurious blank lines
No functional changes.
llvm-svn: 14721
2004-07-09 14:45:17 +00:00
Alkis Evlogimenos
7300963c66
Fix typo.
...
llvm-svn: 14720
2004-07-09 11:25:27 +00:00
Alkis Evlogimenos
132ece8925
Improve code comments.
...
llvm-svn: 14719
2004-07-09 11:10:00 +00:00
Alkis Evlogimenos
2c422bbefb
Add viewCFG() and viewCFGOnly() APIs.
...
llvm-svn: 14679
2004-07-08 00:47:58 +00:00
Alkis Evlogimenos
8a1be03090
Disable coalescing.
...
llvm-svn: 14655
2004-07-07 02:03:12 +00:00
Alkis Evlogimenos
3be9c5fbe7
Do not crash when joining two intervals of registers of different
...
classes: just ignore that move. Thanks to Vladimir Prus who found the
bug!
llvm-svn: 14644
2004-07-06 16:03:21 +00:00
Chris Lattner
520df8464b
Fix a bug in the unreachable block elim pass. Dropping all references on a
...
basic block clear()'s all of the operands lists, including phis. This
caused removePredecessor to get confused later. Because of this, we just
nuke (without prejudice) PHI nodes in unreachable blocks.
llvm-svn: 14635
2004-07-06 06:36:11 +00:00
Alkis Evlogimenos
21b3a5b0de
Correctly compute the ration of iterations/#intervals.
...
llvm-svn: 14626
2004-07-04 17:23:35 +00:00
Reid Spencer
eb04d9bcb4
Add #include <iostream> since Value.h does not #include it any more.
...
llvm-svn: 14622
2004-07-04 12:19:56 +00:00
Alkis Evlogimenos
8f3cc0316c
Add efficiency statistic.
...
llvm-svn: 14590
2004-07-04 07:59:06 +00:00
Chris Lattner
a65b4eac3b
Revert patches 1.79 and 1.80 which had to do with dead MBB's. Now that they
...
don't exist, we don't have to pretend to handle them.
llvm-svn: 14567
2004-07-02 05:52:23 +00:00
Chris Lattner
693244fb33
Add a trivially simple pass to delete unreachable blocks from the CFG. This
...
pass is required to paper over problems in the code generator (primarily
live variables and its clients) which doesn't really have any well defined
semantics for unreachable code.
The proper solution to this problem is to have instruction selectors not
select blocks that are unreachable. Until we have a instruction selection
framework available for use, however, we can't expect all instruction
selector writers to do this. Until then, this pass should be used.
llvm-svn: 14563
2004-07-02 05:46:10 +00:00
Chris Lattner
9a60c532a8
Make sure that we destroy the MBB's, with all of their instructions, before
...
any other data structures
llvm-svn: 14524
2004-07-01 06:29:07 +00:00
Chris Lattner
c85535c8be
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
449af59c7e
Change MBB autonumber a bit to get the reverse mapping as well as a forward
...
mapping
llvm-svn: 14521
2004-07-01 06:02:27 +00:00
Chris Lattner
a47455dbd3
Instance var no longer exists
...
llvm-svn: 14520
2004-07-01 06:02:07 +00:00
Chris Lattner
6c375e4926
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
7c77fd50e7
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
Chris Lattner
4cda555346
In line with the previous patch, do not assert out if analyzing a dead basic block.
...
llvm-svn: 14475
2004-06-29 07:16:23 +00:00
Chris Lattner
49b34f3f51
Do not dereference end iterators. It hurts when you do that.
...
llvm-svn: 14474
2004-06-29 06:56:51 +00:00
Chris Lattner
d22d9cb800
Do not find these ugly sparc-specific objects by using the annotation API on
...
instructions. Instead, keep a map of instructions -> MCFI objects in the
already sparc-specific class MachineFunctionInfo. This will slow down the
sparc backend a bit, but it does not penalize the rest of LLVM!
llvm-svn: 14438
2004-06-27 18:52:17 +00:00
Tanya Lattner
23dbc8170c
Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function.
...
llvm-svn: 14389
2004-06-25 00:13:11 +00:00
Misha Brukman
7d11fbf971
Convert tabs to spaces.
...
llvm-svn: 14373
2004-06-24 21:31:16 +00:00
Misha Brukman
cec9d0bcad
Making an archive version of the CodeGen library is unnecessary if we just
...
move InstructionLowering itself.
llvm-svn: 14324
2004-06-22 17:52:30 +00:00
Misha Brukman
be667731ae
Provide archive version of CodeGen library (for those tools that only need
...
IntrinsicLowering, for instance).
llvm-svn: 14323
2004-06-22 17:28:43 +00:00
Chris Lattner
4fbff990b0
Rename Interval class to LiveInterval to avoid conflicting with the already
...
existing llvm::Interval class.
Patch contributed by Vladimir Prus!
http://mail.cs.uiuc.edu/pipermail/llvmbugs/2004-June/000710.html
llvm-svn: 14281
2004-06-21 13:10:56 +00:00
Chris Lattner
bcdadf3765
Move the IntrinsicLowering header into the CodeGen directory, as per PR346
...
llvm-svn: 14266
2004-06-20 07:49:54 +00:00
Brian Gaeke
4300ca9d32
Make debugging dumps w/ multiple MachineBBs for a given LLVM BB readable.
...
llvm-svn: 14205
2004-06-17 22:26:53 +00:00
Chris Lattner
6b7275996c
Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID()
...
llvm-svn: 14201
2004-06-17 18:19:28 +00:00
Chris Lattner
6f4a596234
Fix a recent regression in Applications/sgefa that Alkis pointed out to me.
...
The vector may actually be empty if the register that we are marking as
recently used is not actually allocatable. This happens for physical registers
that are not allocatable, like the ST(x) registers on X86.
llvm-svn: 14195
2004-06-16 06:57:29 +00:00
Chris Lattner
5888b5d4b1
Fix fallout from getOffsetOfLocalArea() being negated. Debugging dumps were being
...
printed incorrectly, and we were reserving 8 extra bytes of stack space for functions
on X86.
llvm-svn: 14152
2004-06-11 06:37:11 +00:00
Chris Lattner
175532bb1e
Fix the prolog epilog code inserter to match the documentation and support
...
targets whose stack grows up.
Patch contributed by Vladimir Prus
llvm-svn: 14111
2004-06-10 06:23:35 +00:00
Chris Lattner
7b4d0f9c22
Oops, this was not to go in
...
llvm-svn: 13958
2004-06-02 06:06:45 +00:00
Chris Lattner
2805c189dc
Adjust to the new TargetMachine interface
...
llvm-svn: 13957
2004-06-02 06:06:20 +00:00
Chris Lattner
2150542af9
Adjust to new TargetMachine interface
...
llvm-svn: 13956
2004-06-02 05:57:12 +00:00
Chris Lattner
185fa54c68
Inline findOptimalStorageSize into it's caller, both of which are sparc specific
...
llvm-svn: 13955
2004-06-02 05:56:52 +00:00
Chris Lattner
560b5e42ab
Finegrainify namespacification
...
llvm-svn: 13948
2004-06-02 04:28:06 +00:00
Chris Lattner
71f1d6d9d8
Fix a trivial but blatant bug
...
llvm-svn: 13947
2004-06-02 03:57:43 +00:00
Alkis Evlogimenos
fbe799cfa2
Pull Interval class out of LiveIntervals.
...
llvm-svn: 13910
2004-05-30 07:46:27 +00:00
Alkis Evlogimenos
a5268e8199
When spilling an register, introduce a new temporary for each of its
...
spills. This allows for more flexibility when allocating registers for
spill code.
llvm-svn: 13907
2004-05-30 07:24:39 +00:00
Brian Gaeke
a8b396fe29
Fix typo in head-of-file comment.
...
llvm-svn: 13903
2004-05-30 03:33:48 +00:00
Alkis Evlogimenos
fd735bcf28
Add method to assign stack slot to virtual register without creating a
...
new one.
llvm-svn: 13895
2004-05-29 20:38:05 +00:00
Alkis Evlogimenos
e3cec71bdc
Add grow() member that grows the maps when the number of virtual
...
registers in the function has changed.
llvm-svn: 13893
2004-05-29 19:03:29 +00:00
Alkis Evlogimenos
1010116a8f
Remove defs vector from live intervals.
...
llvm-svn: 13892
2004-05-29 16:18:57 +00:00
Tanya Lattner
50cbb9ad3e
updates to ModuloSched
...
llvm-svn: 13881
2004-05-28 20:14:12 +00:00
Tanya Lattner
642685a400
Adding scheduling class.
...
llvm-svn: 13783
2004-05-26 06:27:36 +00:00
Tanya Lattner
a066df6bd7
Updating my cvs versions. THis is still in progress and much will be changed.
...
llvm-svn: 13782
2004-05-26 06:27:18 +00:00
Tanya Lattner
91fa3a9908
Moved MachineBasicBlock deconstructor to cpp file and removed it from LeakDetector to fix memory leak bug.
...
llvm-svn: 13718
2004-05-24 07:14:35 +00:00
Tanya Lattner
a578cb7a65
Added MachineFunction parent* to MachineBasicBlock. Customized ilist template
...
to set the parent when a MachineBasicBlock is added to a MachineFunction.
llvm-svn: 13716
2004-05-24 06:11:51 +00:00
Chris Lattner
18dad6ed52
Eliminate an explicit use of the LLVM basic block, using getParent instead,
...
which simplifies the code
llvm-svn: 13707
2004-05-24 03:44:52 +00:00
Tanya Lattner
bcee21b491
Changed clone to be const.
...
Changed copy constructor to set parent, prev, and next pointers to null.
llvm-svn: 13706
2004-05-24 03:14:18 +00:00
Tanya Lattner
9953d86e63
Fixed up my changes to add support for cloning Machine Instructions.
...
llvm-svn: 13665
2004-05-23 20:58:02 +00:00
Tanya Lattner
e6a4a7dbcf
Adding support to clone MachineInstr
...
llvm-svn: 13661
2004-05-23 19:35:12 +00:00
Chris Lattner
6307b8d061
Fix a really nasty bug from my changes on Monday to PHIElim. These changes
...
broke obsequi and a lot of other things. It all boiled down to MBB being
overloaded in an inner scope and me confusing it with the one in the outer
scope. Ugh!
llvm-svn: 13517
2004-05-12 21:47:57 +00:00
Brian Gaeke
4cf17775e8
Start NextMBBNumber out at zero.
...
llvm-svn: 13515
2004-05-12 21:35:23 +00:00
Brian Gaeke
cb5d22a0cb
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.
llvm-svn: 13514
2004-05-12 21:35:22 +00:00
Chris Lattner
24f200ad7b
Switch this from using an std::map to using a DenseMap. This speeds up
...
phi-elimination from 0.6 to 0.54s on kc++.
llvm-svn: 13454
2004-05-10 19:17:36 +00:00
Chris Lattner
39a1e0a33e
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).
llvm-svn: 13453
2004-05-10 19:06:37 +00:00
Chris Lattner
a2f7b9bddc
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.
llvm-svn: 13452
2004-05-10 18:47:18 +00:00
Chris Lattner
5eb8094c2d
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
Tanya Lattner
a6820d6704
Updating my versions of ModuloScheduling in cvs. Still not complete.
...
llvm-svn: 13424
2004-05-08 16:12:10 +00:00
Alkis Evlogimenos
2a54b5d3e1
Add required header
...
llvm-svn: 13417
2004-05-08 03:50:03 +00:00
Alkis Evlogimenos
54a89b7c72
Remove unneeded header
...
llvm-svn: 13416
2004-05-08 03:49:35 +00:00
Chris Lattner
991425ae70
numeric_limits::infinity() apparently does not work on all systems. As a
...
workaround, use the C HUGE_VAL macro instead.
llvm-svn: 13377
2004-05-06 16:25:59 +00:00
Chris Lattner
8c0bc68910
Operate on the Machine CFG instead of on the LLVM CFG
...
llvm-svn: 13302
2004-05-01 21:24:39 +00:00
Chris Lattner
c49a9a5d76
Stop LiveVariables from using BasicBlocks as part of the mapping, instead
...
use MachineBasicBlocks. To do this, we traverse the Machine CFG instead of
the LLVM CFG, which is also *MUCH* more efficient by having fewer levels of
indirections and mappings.
llvm-svn: 13301
2004-05-01 21:24:24 +00:00
Brian Gaeke
a411e07db0
Include SparcV9RegInfo.h instead of TargetRegInfo.h. This serves as a bit of
...
documentation that this module needs to be made independent of the
register file description of the current target.
llvm-svn: 13125
2004-04-23 18:15:46 +00:00
Brian Gaeke
4aaa9c603a
Implement emitWordAt() for the debug emitter and the file printer emitter. (I
...
am not so sure about the file printer emitter, but the debug emitter change
should be harmless.)
llvm-svn: 13117
2004-04-23 17:11:13 +00:00
Alkis Evlogimenos
8f2df3aa3c
Fix bug introduced in previous commit.
...
llvm-svn: 12872
2004-04-12 20:26:39 +00:00
Alkis Evlogimenos
0ede7ec4f8
Correctly compute spill weights
...
llvm-svn: 12869
2004-04-12 17:39:20 +00:00
Alkis Evlogimenos
b753c8c9c5
Print def lists a bit more compactly
...
llvm-svn: 12866
2004-04-12 15:57:58 +00:00
Alkis Evlogimenos
237f203ca9
Add definition list to each live interval.
...
llvm-svn: 12791
2004-04-09 18:07:57 +00:00
Chris Lattner
afbafb55ea
MBB::remove should not modify the iterator passed in
...
llvm-svn: 12572
2004-03-31 21:59:59 +00:00
Chris Lattner
acccf32aa3
MachineBasicBlock::remove should not modify the iterator passed in
...
llvm-svn: 12571
2004-03-31 21:59:29 +00:00
Alkis Evlogimenos
a333b1382f
Correctly update LiveVariables when an instruction changes
...
llvm-svn: 12561
2004-03-30 22:44:39 +00:00
Brian Gaeke
2fe0ac9ade
Change how the beginnings and ends of MachineFunctions are printed. Get
...
rid of the funny cast.
llvm-svn: 12537
2004-03-29 21:58:31 +00:00
Alkis Evlogimenos
02a5354d9b
Make the set of fixed (preallocated) intervals be a fixed superset of
...
unhandled + handled. So unhandled is now including all fixed intervals
and fixed intervals never changes when processing a function.
llvm-svn: 12462
2004-03-17 00:48:59 +00:00
Chris Lattner
e0b49952f6
Fix PR294
...
llvm-svn: 12425
2004-03-16 01:45:55 +00:00
Alkis Evlogimenos
48da2f8a6d
Change MRegisterInfo::foldMemoryOperand to return the folded
...
instruction to make the API more flexible.
llvm-svn: 12386
2004-03-14 07:19:51 +00:00
Alkis Evlogimenos
6623cd78f9
Spill explicit physical register defs as well.
...
llvm-svn: 12260
2004-03-09 08:35:13 +00:00
Alkis Evlogimenos
cb98644e9b
As I wrote in the docs, simple is the default spiller :-)
...
llvm-svn: 12189
2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
79850121ad
Add simple spiller.
...
llvm-svn: 12188
2004-03-06 22:38:29 +00:00
Brian Gaeke
015972103d
Make MachineOperand's value named 'contents'. Make really, really sure
...
it is always completely initialized and copied.
Also, fix up many comments and asserts.
llvm-svn: 12100
2004-03-03 19:07:27 +00:00
Alkis Evlogimenos
31953c7a10
Add a spiller option to llc. A simple spiller will come soon. When we get CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now.
...
llvm-svn: 12062
2004-03-01 23:18:15 +00:00
Alkis Evlogimenos
b76d234ee9
Add the long awaited memory operand folding support for linear scan
...
llvm-svn: 12058
2004-03-01 20:05:10 +00:00
Brian Gaeke
427cec1395
TargetCacheInfo has been removed; its only uses were to propagate a constant
...
(16) into certain areas of the SPARC V9 back-end. I'm fairly sure the US IIIi's
dcache has 32-byte lines, so I'm not sure where the 16 came from. However, in
the interest of not breaking things any more than they already are, I'm going
to leave the constant alone.
llvm-svn: 12043
2004-03-01 06:43:29 +00:00
Tanya Lattner
48a503be04
Adding new Modulo Scheduling graph files.
...
llvm-svn: 12031
2004-03-01 02:50:57 +00:00
Tanya Lattner
dd10fbe775
Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress.
...
llvm-svn: 12030
2004-03-01 02:50:01 +00:00
Chris Lattner
604cc83933
Add an assert
...
llvm-svn: 12010
2004-02-29 22:01:51 +00:00
Chris Lattner
e0c3c18802
Add back #include I messed up
...
llvm-svn: 12009
2004-02-29 21:40:53 +00:00
Chris Lattner
90ecb92838
Urg, forgot to check this in.
...
llvm-svn: 12007
2004-02-29 21:03:08 +00:00
Chris Lattner
3859031b9b
Move the private MachineInstrAnnot.h into a private directory.
...
llvm-svn: 12003
2004-02-29 19:12:51 +00:00
Chris Lattner
d5a49c477d
Remove use of an ugly header
...
llvm-svn: 12002
2004-02-29 19:04:31 +00:00
Chris Lattner
6194ee84ba
Move methods out of .h file
...
llvm-svn: 12001
2004-02-29 19:02:39 +00:00
Chris Lattner
f20abac9bc
Eliminate the distinction between "real" and "unreal" instructions
...
llvm-svn: 11986
2004-02-29 06:31:16 +00:00
Chris Lattner
44b1b22a2d
int64_t -> int
...
llvm-svn: 11977
2004-02-29 05:07:02 +00:00
Alkis Evlogimenos
e669caafe0
Rename member function to be consistent with the rest.
...
llvm-svn: 11898
2004-02-27 06:11:15 +00:00
Alkis Evlogimenos
941f9310bb
Make spiller push stores right after the definition of a register so
...
that they are as far away from the loads as possible.
llvm-svn: 11895
2004-02-27 04:51:35 +00:00
Alkis Evlogimenos
519e1e8c92
Fix crash caused by passing register 0 to
...
MRegisterInfo::isPhysicalRegister().
llvm-svn: 11894
2004-02-27 01:52:34 +00:00
Alkis Evlogimenos
5a3bab9402
Clear maps right after basic block is processed.
...
llvm-svn: 11892
2004-02-26 23:22:23 +00:00
Alkis Evlogimenos
61719d48d2
Uncomment assertions that register# != 0 on calls to
...
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.
llvm-svn: 11882
2004-02-26 22:00:20 +00:00
Chris Lattner
28a0885929
No need to clear the map here, it will always be empty
...
llvm-svn: 11868
2004-02-26 05:21:21 +00:00
Alkis Evlogimenos
e62ddd405d
Fix bugs found with recent addition of assertions in
...
MRegisterInfo::is{Physical,Virtual}Register.
llvm-svn: 11849
2004-02-25 23:21:52 +00:00
Brian Gaeke
84b76c9be0
Great sparc renaming fallout IV: Sparc --> SparcV9.
...
llvm-svn: 11844
2004-02-25 22:09:36 +00:00
Alkis Evlogimenos
a9f03fba9d
Remove asssert since it is breaking cases that it shouldn't.
...
llvm-svn: 11841
2004-02-25 22:01:06 +00:00
Alkis Evlogimenos
d8bace7f60
Add DenseMap template and actually use it for for mapping virtual regs
...
to objects.
llvm-svn: 11840
2004-02-25 21:55:45 +00:00
Chris Lattner
f5a393a133
Add an assertion
...
llvm-svn: 11830
2004-02-25 19:37:44 +00:00