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
34afafc190
Fix IA64 compatibility
...
llvm-svn: 14866
2004-07-16 00:06:01 +00:00
cc36c670e8
Use new macro
...
llvm-svn: 14865
2004-07-16 00:04:54 +00:00
fcdab1b5f5
Fix for PR341
...
llvm-svn: 14845
2004-07-15 02:40:04 +00:00
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
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
7300963c66
Fix typo.
...
llvm-svn: 14720
2004-07-09 11:25:27 +00:00
132ece8925
Improve code comments.
...
llvm-svn: 14719
2004-07-09 11:10:00 +00:00
2c422bbefb
Add viewCFG() and viewCFGOnly() APIs.
...
llvm-svn: 14679
2004-07-08 00:47:58 +00:00
8a1be03090
Disable coalescing.
...
llvm-svn: 14655
2004-07-07 02:03:12 +00:00
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
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
21b3a5b0de
Correctly compute the ration of iterations/#intervals.
...
llvm-svn: 14626
2004-07-04 17:23:35 +00:00
eb04d9bcb4
Add #include <iostream> since Value.h does not #include it any more.
...
llvm-svn: 14622
2004-07-04 12:19:56 +00:00
8f3cc0316c
Add efficiency statistic.
...
llvm-svn: 14590
2004-07-04 07:59:06 +00:00
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
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
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
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
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
a47455dbd3
Instance var no longer exists
...
llvm-svn: 14520
2004-07-01 06:02:07 +00:00
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
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
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
49b34f3f51
Do not dereference end iterators. It hurts when you do that.
...
llvm-svn: 14474
2004-06-29 06:56:51 +00:00
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
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
7d11fbf971
Convert tabs to spaces.
...
llvm-svn: 14373
2004-06-24 21:31:16 +00:00
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
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
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
bcdadf3765
Move the IntrinsicLowering header into the CodeGen directory, as per PR346
...
llvm-svn: 14266
2004-06-20 07:49:54 +00:00
4300ca9d32
Make debugging dumps w/ multiple MachineBBs for a given LLVM BB readable.
...
llvm-svn: 14205
2004-06-17 22:26:53 +00:00
6b7275996c
Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID()
...
llvm-svn: 14201
2004-06-17 18:19:28 +00:00
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
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
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
7b4d0f9c22
Oops, this was not to go in
...
llvm-svn: 13958
2004-06-02 06:06:45 +00:00
2805c189dc
Adjust to the new TargetMachine interface
...
llvm-svn: 13957
2004-06-02 06:06:20 +00:00
2150542af9
Adjust to new TargetMachine interface
...
llvm-svn: 13956
2004-06-02 05:57:12 +00:00
185fa54c68
Inline findOptimalStorageSize into it's caller, both of which are sparc specific
...
llvm-svn: 13955
2004-06-02 05:56:52 +00:00
560b5e42ab
Finegrainify namespacification
...
llvm-svn: 13948
2004-06-02 04:28:06 +00:00
71f1d6d9d8
Fix a trivial but blatant bug
...
llvm-svn: 13947
2004-06-02 03:57:43 +00:00
fbe799cfa2
Pull Interval class out of LiveIntervals.
...
llvm-svn: 13910
2004-05-30 07:46:27 +00:00
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
a8b396fe29
Fix typo in head-of-file comment.
...
llvm-svn: 13903
2004-05-30 03:33:48 +00:00
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
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
1010116a8f
Remove defs vector from live intervals.
...
llvm-svn: 13892
2004-05-29 16:18:57 +00:00
50cbb9ad3e
updates to ModuloSched
...
llvm-svn: 13881
2004-05-28 20:14:12 +00:00
642685a400
Adding scheduling class.
...
llvm-svn: 13783
2004-05-26 06:27:36 +00:00
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
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
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
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
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
9953d86e63
Fixed up my changes to add support for cloning Machine Instructions.
...
llvm-svn: 13665
2004-05-23 20:58:02 +00:00
e6a4a7dbcf
Adding support to clone MachineInstr
...
llvm-svn: 13661
2004-05-23 19:35:12 +00:00
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
4cf17775e8
Start NextMBBNumber out at zero.
...
llvm-svn: 13515
2004-05-12 21:35:23 +00:00
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
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
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
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
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
a6820d6704
Updating my versions of ModuloScheduling in cvs. Still not complete.
...
llvm-svn: 13424
2004-05-08 16:12:10 +00:00
2a54b5d3e1
Add required header
...
llvm-svn: 13417
2004-05-08 03:50:03 +00:00
54a89b7c72
Remove unneeded header
...
llvm-svn: 13416
2004-05-08 03:49:35 +00:00
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
8c0bc68910
Operate on the Machine CFG instead of on the LLVM CFG
...
llvm-svn: 13302
2004-05-01 21:24:39 +00:00
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
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
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
8f2df3aa3c
Fix bug introduced in previous commit.
...
llvm-svn: 12872
2004-04-12 20:26:39 +00:00
0ede7ec4f8
Correctly compute spill weights
...
llvm-svn: 12869
2004-04-12 17:39:20 +00:00
b753c8c9c5
Print def lists a bit more compactly
...
llvm-svn: 12866
2004-04-12 15:57:58 +00:00
237f203ca9
Add definition list to each live interval.
...
llvm-svn: 12791
2004-04-09 18:07:57 +00:00
afbafb55ea
MBB::remove should not modify the iterator passed in
...
llvm-svn: 12572
2004-03-31 21:59:59 +00:00
acccf32aa3
MachineBasicBlock::remove should not modify the iterator passed in
...
llvm-svn: 12571
2004-03-31 21:59:29 +00:00
a333b1382f
Correctly update LiveVariables when an instruction changes
...
llvm-svn: 12561
2004-03-30 22:44:39 +00:00
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
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
e0b49952f6
Fix PR294
...
llvm-svn: 12425
2004-03-16 01:45:55 +00:00
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
6623cd78f9
Spill explicit physical register defs as well.
...
llvm-svn: 12260
2004-03-09 08:35:13 +00:00
cb98644e9b
As I wrote in the docs, simple is the default spiller :-)
...
llvm-svn: 12189
2004-03-06 23:08:44 +00:00
79850121ad
Add simple spiller.
...
llvm-svn: 12188
2004-03-06 22:38:29 +00:00
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
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
b76d234ee9
Add the long awaited memory operand folding support for linear scan
...
llvm-svn: 12058
2004-03-01 20:05:10 +00:00
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
48a503be04
Adding new Modulo Scheduling graph files.
...
llvm-svn: 12031
2004-03-01 02:50:57 +00:00
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
604cc83933
Add an assert
...
llvm-svn: 12010
2004-02-29 22:01:51 +00:00
e0c3c18802
Add back #include I messed up
...
llvm-svn: 12009
2004-02-29 21:40:53 +00:00
90ecb92838
Urg, forgot to check this in.
...
llvm-svn: 12007
2004-02-29 21:03:08 +00:00
3859031b9b
Move the private MachineInstrAnnot.h into a private directory.
...
llvm-svn: 12003
2004-02-29 19:12:51 +00:00
d5a49c477d
Remove use of an ugly header
...
llvm-svn: 12002
2004-02-29 19:04:31 +00:00
6194ee84ba
Move methods out of .h file
...
llvm-svn: 12001
2004-02-29 19:02:39 +00:00
f20abac9bc
Eliminate the distinction between "real" and "unreal" instructions
...
llvm-svn: 11986
2004-02-29 06:31:16 +00:00
44b1b22a2d
int64_t -> int
...
llvm-svn: 11977
2004-02-29 05:07:02 +00:00
e669caafe0
Rename member function to be consistent with the rest.
...
llvm-svn: 11898
2004-02-27 06:11:15 +00:00
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
519e1e8c92
Fix crash caused by passing register 0 to
...
MRegisterInfo::isPhysicalRegister().
llvm-svn: 11894
2004-02-27 01:52:34 +00:00
5a3bab9402
Clear maps right after basic block is processed.
...
llvm-svn: 11892
2004-02-26 23:22:23 +00:00
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
28a0885929
No need to clear the map here, it will always be empty
...
llvm-svn: 11868
2004-02-26 05:21:21 +00:00
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
84b76c9be0
Great sparc renaming fallout IV: Sparc --> SparcV9.
...
llvm-svn: 11844
2004-02-25 22:09:36 +00:00
a9f03fba9d
Remove asssert since it is breaking cases that it shouldn't.
...
llvm-svn: 11841
2004-02-25 22:01:06 +00:00
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
f5a393a133
Add an assertion
...
llvm-svn: 11830
2004-02-25 19:37:44 +00:00
10a32da382
FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar
...
llvm-svn: 11804
2004-02-24 19:46:00 +00:00
1dd872ce94
Move machine code rewriter and spiller outside the register
...
allocator.
The implementation is completely rewritten and now employs several
optimizations not exercised before. For example for 164.gzip we have
997 loads and 699 stores vs the 1221 loads and 880 stores we have
before.
llvm-svn: 11798
2004-02-24 08:58:30 +00:00
63aea0b6a5
Add predicates for checking if a virtual register has a physical
...
register mapping or a stack slot mapping.
llvm-svn: 11795
2004-02-24 06:30:36 +00:00
8b571a64ac
Make enum private as it is an implementation detail.
...
llvm-svn: 11782
2004-02-23 23:49:40 +00:00
ab77b05d8c
Remove '4Virt' from member function names as it is obvious.
...
llvm-svn: 11781
2004-02-23 23:47:10 +00:00
c794a9060f
Refactor VirtRegMap out of RegAllocLinearScan as the first part of bug
...
251 (providing a generic machine code rewriter/spiller).
llvm-svn: 11780
2004-02-23 23:08:11 +00:00
52de9e214c
Add number of spilled registers statistic.
...
llvm-svn: 11759
2004-02-23 18:45:32 +00:00
91a7dc0a6e
Fix bugs in finegrainification
...
llvm-svn: 11758
2004-02-23 18:40:08 +00:00
43df6c268b
Finegrainify namespacification
...
llvm-svn: 11757
2004-02-23 18:38:20 +00:00
b525d54045
Use MachineBasicBlock::getParent().
...
llvm-svn: 11756
2004-02-23 18:36:38 +00:00
d780ce6462
Remove implementation of default constructor as it is useless now.
...
llvm-svn: 11755
2004-02-23 18:28:35 +00:00
af2de4848e
Refactor rewinding code for finding the first terminator of a basic
...
block into MachineBasicBlock::getFirstTerminator().
This also fixes a bug in the implementation of the above in both
RegAllocLocal and InstrSched, where instructions where added after the
terminator if the basic block's only instruction was a terminator (it
shouldn't matter for RegAllocLocal since this case never occurs in
practice).
llvm-svn: 11748
2004-02-23 18:14:48 +00:00
f83cb74b57
Improved PhysRegTracker interface. RegAlloc lazily allocates the register tracker using a std::auto_ptr
...
llvm-svn: 11738
2004-02-23 06:10:13 +00:00
c31ff795d5
Simplify iterator usage now that we have next(). Also don't pass iterators by reference now that MachineInstr* are in an ilist
...
llvm-svn: 11732
2004-02-23 04:12:30 +00:00
887b941fbb
Some code cleanups from Chris
...
llvm-svn: 11724
2004-02-23 01:57:39 +00:00
d42c2f24ec
Fix comments in PhysRegTracker and rename isPhysRegAvail to isRegAvail to be consistent with the other two
...
llvm-svn: 11723
2004-02-23 01:25:05 +00:00
4d7ad6713d
Move LiveIntervals.h up to be the first included header
...
llvm-svn: 11721
2004-02-23 01:01:21 +00:00
1410859484
Pull PhysRegTracker out of RegAllocLinearScan as it can be used by other allocators as well
...
llvm-svn: 11720
2004-02-23 00:53:31 +00:00
486b12b71a
Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler
...
llvm-svn: 11719
2004-02-23 00:50:15 +00:00
19aef9e757
Another bug fix for empty MBB's
...
llvm-svn: 11716
2004-02-22 19:37:31 +00:00
84b406650e
Fix a bug where we were implicitly assuming that there would be at least
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one terminator instruction in each basic block.
llvm-svn: 11714
2004-02-22 19:08:15 +00:00
cb352300c9
Print basic block boundaries in machine instruction debug output.
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llvm-svn: 11704
2004-02-22 05:46:04 +00:00
d890f59f19
Abstract merging of ranges away from number of slots per instruction.
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Also make it less aggressive as the current implementation breaks in
some cases.
llvm-svn: 11696
2004-02-22 04:05:13 +00:00
334114bdf1
Make 'fold' statistic's description the same in both allocators.
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llvm-svn: 11687
2004-02-21 18:07:33 +00:00
6ad63f8da2
Some more statistics improvements.
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llvm-svn: 11676
2004-02-20 20:53:26 +00:00
71751de25c
Disambiguate statistic descriptions.
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llvm-svn: 11675
2004-02-20 20:46:49 +00:00
f3e77fb7a7
Rename statistic and add another one.
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llvm-svn: 11674
2004-02-20 20:43:08 +00:00
22de21ea80
Fix crash in debug output.
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llvm-svn: 11659
2004-02-20 06:41:12 +00:00
bcc99a83ee
Fix instruction numbering in debug output.
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llvm-svn: 11655
2004-02-20 06:29:51 +00:00
76eca062ea
Too many changes in one commit:
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1. LiveIntervals now implement a 4 slot per instruction model. Load,
Use, Def and a Store slot. This is required in order to correctly
represent caller saved register clobbering on function calls,
register reuse in the same instruction (def resues last use) and
also spill code added later by the allocator. The previous
representation (2 slots per instruction) was insufficient and as a
result was causing subtle bugs.
2. Fixes in spill code generation. This was the major cause of
failures in the test suite.
3. Linear scan now has core support for folding memory operands. This
is untested and not enabled (the live interval update function does
not attempt to fold loads/stores in instructions).
4. Lots of improvements in the debugging output of both live intervals
and linear scan. Give it a try... it is beautiful :-)
In summary the above fixes all the issues with the recent reserved
register elimination changes and get the allocator very close to the
next big step: folding memory operands.
llvm-svn: 11654
2004-02-20 06:15:40 +00:00
3cf546037e
Fix RA::verifyAssignment()
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llvm-svn: 11629
2004-02-19 19:24:17 +00:00
f5c5e1f458
Fix problem fusing spill code into instructions: we didn't update the live
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variable information to take into account the change of instruction
address.
llvm-svn: 11628
2004-02-19 18:34:02 +00:00
4c988391e1
Fix an iterator invalidation problem. :(
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llvm-svn: 11627
2004-02-19 18:32:29 +00:00
afa9d7eb85
Add method to update livevar when an instruction moves
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llvm-svn: 11625
2004-02-19 18:28:02 +00:00
63f41abfe6
Fix a __LONG__ term annoyance of mine: symbolic registers weren't being printed
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by operator<< on MachineInstr's, and looking up what register "24" is all of the
time was greatly annoying.
llvm-svn: 11623
2004-02-19 16:17:08 +00:00
d23a882f2f
Add a MachineBasicBlock::getParent() method
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llvm-svn: 11622
2004-02-19 16:13:54 +00:00
d0a60b71fc
Rename reloads/spills to loads/stores.
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llvm-svn: 11619
2004-02-19 06:19:09 +00:00
b490a12501
Implement assignment correctness verification.
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llvm-svn: 11609
2004-02-18 23:15:23 +00:00
Chris Lattner