Chris Lattner
02348caffc
Fix lowering to work correctly
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14134 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-11 02:54:02 +00:00
Chris Lattner
137cc4fc8c
I misled Alkis: LLVM should have isnan, not isunordered.
...
isunordered(X, Y) === isnan(X) | isnan(Y)
Remove isunordered, add isnan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14132 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-11 02:29:43 +00:00
Alkis Evlogimenos
f616f22e81
Add the isunordered intrinsic.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14127 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-11 01:08:18 +00:00
Chris Lattner
577aec1428
Fix the prolog epilog code inserter to match the documentation and support
...
targets whose stack grows up.
Patch contributed by Vladimir Prus
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14111 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-10 06:23:35 +00:00
Chris Lattner
f0a3e6c21c
Remove an unused variable.
...
Work around for bogus errors: no those static functions don't need to
be executed to be initialized!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14040 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-05 01:05:19 +00:00
Chris Lattner
6bc24419b6
Oops, this was not to go in
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13958 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 06:06:45 +00:00
Chris Lattner
98107ffd1e
Adjust to the new TargetMachine interface
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13957 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 06:06:20 +00:00
Chris Lattner
9bcdcd17c7
Adjust to new TargetMachine interface
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13956 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 05:57:12 +00:00
Chris Lattner
62d6ad2cee
Inline findOptimalStorageSize into it's caller, both of which are sparc specific
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13955 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 05:56:52 +00:00
Chris Lattner
e25738cab6
Finegrainify namespacification
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13948 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 04:28:06 +00:00
Chris Lattner
fd0f7b1131
Fix a trivial but blatant bug
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13947 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-02 03:57:43 +00:00
Alkis Evlogimenos
6924063bf2
Pull Interval class out of LiveIntervals.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13910 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-30 07:46:27 +00:00
Alkis Evlogimenos
26f5a69e52
When spilling an register, introduce a new temporary for each of its
...
spills. This allows for more flexibility when allocating registers for
spill code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13907 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-30 07:24:39 +00:00
Brian Gaeke
cdd69e6719
Fix typo in head-of-file comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13903 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-30 03:33:48 +00:00
Alkis Evlogimenos
38af59a43c
Add method to assign stack slot to virtual register without creating a
...
new one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13895 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-29 20:38:05 +00:00
Alkis Evlogimenos
f174cc303b
Add grow() member that grows the maps when the number of virtual
...
registers in the function has changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13893 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-29 19:03:29 +00:00
Alkis Evlogimenos
f717a05698
Remove defs vector from live intervals.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13892 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-29 16:18:57 +00:00
Tanya Lattner
20890832ea
updates to ModuloSched
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13881 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-28 20:14:12 +00:00
Tanya Lattner
ebac64534c
Adding scheduling class.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13783 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-26 06:27:36 +00:00
Tanya Lattner
4cffb588f5
Updating my cvs versions. THis is still in progress and much will be changed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13782 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-26 06:27:18 +00:00
Tanya Lattner
17fb34bf8c
Moved MachineBasicBlock deconstructor to cpp file and removed it from LeakDetector to fix memory leak bug.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13718 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-24 07:14:35 +00:00
Tanya Lattner
792699c46e
Added MachineFunction parent* to MachineBasicBlock. Customized ilist template
...
to set the parent when a MachineBasicBlock is added to a MachineFunction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13716 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-24 06:11:51 +00:00
Chris Lattner
5bf3ce2b7c
Eliminate an explicit use of the LLVM basic block, using getParent instead,
...
which simplifies the code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13707 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-24 03:44:52 +00:00
Tanya Lattner
0c63e03e04
Changed clone to be const.
...
Changed copy constructor to set parent, prev, and next pointers to null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13706 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-24 03:14:18 +00:00
Tanya Lattner
b5159ed0cb
Fixed up my changes to add support for cloning Machine Instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13665 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-23 20:58:02 +00:00
Tanya Lattner
466b534a57
Adding support to clone MachineInstr
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13661 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-23 19:35:12 +00:00
Chris Lattner
bee887211b
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!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13517 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:47:57 +00:00
Brian Gaeke
d657c42dce
Start NextMBBNumber out at zero.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13515 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:35:23 +00:00
Brian Gaeke
0bcb1ad7be
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13514 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-12 21:35:22 +00:00
Chris Lattner
8abf69374e
Switch this from using an std::map to using a DenseMap. This speeds up
...
phi-elimination from 0.6 to 0.54s on kc++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13454 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 19:17:36 +00:00
Chris Lattner
80e20eb487
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13453 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 19:06:37 +00:00
Chris Lattner
791f896d9f
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13452 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 18:47:18 +00:00
Chris Lattner
6d3848df7e
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13444 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-10 05:12:43 +00:00
Chris Lattner
0979ca7e3e
Implement the AddPrototypes method
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13432 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-09 04:29:57 +00:00
Tanya Lattner
73e3e2e10f
Updating my versions of ModuloScheduling in cvs. Still not complete.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13424 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-08 16:12:10 +00:00
Alkis Evlogimenos
880e8e4b4c
Add required header
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13417 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-08 03:50:03 +00:00
Alkis Evlogimenos
feab248c93
Remove unneeded header
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13416 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-08 03:49:35 +00:00
Chris Lattner
a19eedeb7a
numeric_limits::infinity() apparently does not work on all systems. As a
...
workaround, use the C HUGE_VAL macro instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13377 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-06 16:25:59 +00:00
Chris Lattner
015959ee38
Operate on the Machine CFG instead of on the LLVM CFG
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13302 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-01 21:24:39 +00:00
Chris Lattner
f25fb4bc64
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13301 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-01 21:24:24 +00:00
Brian Gaeke
35450d2aaa
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13125 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-23 18:15:46 +00:00
Brian Gaeke
da8246bb71
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.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13117 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-23 17:11:13 +00:00
Alkis Evlogimenos
6e4d0d6546
Fix bug introduced in previous commit.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12872 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-12 20:26:39 +00:00
Alkis Evlogimenos
43b61f724e
Correctly compute spill weights
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12869 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-12 17:39:20 +00:00
Alkis Evlogimenos
e633352fd5
Print def lists a bit more compactly
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12866 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-12 15:57:58 +00:00
Alkis Evlogimenos
9a8b490735
Add definition list to each live interval.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12791 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-09 18:07:57 +00:00
Chris Lattner
b4186e0ccd
MBB::remove should not modify the iterator passed in
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12572 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-31 21:59:59 +00:00
Chris Lattner
4f6410f5cb
MachineBasicBlock::remove should not modify the iterator passed in
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12571 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-31 21:59:29 +00:00
Alkis Evlogimenos
a8db01ac83
Correctly update LiveVariables when an instruction changes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12561 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30 22:44:39 +00:00
Brian Gaeke
47b716483e
Change how the beginnings and ends of MachineFunctions are printed. Get
...
rid of the funny cast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12537 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-29 21:58:31 +00:00
Alkis Evlogimenos
eee91172fb
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12462 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-17 00:48:59 +00:00
Chris Lattner
6ae9eb1566
Fix PR294
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12425 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16 01:45:55 +00:00
Alkis Evlogimenos
39354c99a1
Change MRegisterInfo::foldMemoryOperand to return the folded
...
instruction to make the API more flexible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12386 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14 07:19:51 +00:00
Alkis Evlogimenos
6a367f33f3
Spill explicit physical register defs as well.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12260 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-09 08:35:13 +00:00
Alkis Evlogimenos
5ae00066c6
As I wrote in the docs, simple is the default spiller :-)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12189 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
499b2bad27
Add simple spiller.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12188 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-06 22:38:29 +00:00
Brian Gaeke
c54839573c
Make MachineOperand's value named 'contents'. Make really, really sure
...
it is always completely initialized and copied.
Also, fix up many comments and asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12100 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 19:07:27 +00:00
Alkis Evlogimenos
dd420e060a
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.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12062 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 23:18:15 +00:00
Alkis Evlogimenos
5f37502bfb
Add the long awaited memory operand folding support for linear scan
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 20:05:10 +00:00
Brian Gaeke
05b15fb075
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12043 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 06:43:29 +00:00
Tanya Lattner
9b3cbdbedb
Adding new Modulo Scheduling graph files.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12031 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:50:57 +00:00
Tanya Lattner
d14b83733e
Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12030 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:50:01 +00:00
Chris Lattner
92bc3bc11c
Add an assert
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12010 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:01:51 +00:00
Chris Lattner
c81295ab24
Add back #include I messed up
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12009 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 21:40:53 +00:00
Chris Lattner
e8d43fdced
Urg, forgot to check this in.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12007 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 21:03:08 +00:00
Chris Lattner
08d4963d49
Move the private MachineInstrAnnot.h into a private directory.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12003 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:12:51 +00:00
Chris Lattner
78827e9f8b
Remove use of an ugly header
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12002 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:04:31 +00:00
Chris Lattner
585911ee21
Move methods out of .h file
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12001 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:39 +00:00
Chris Lattner
bceb68807f
Eliminate the distinction between "real" and "unreal" instructions
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11986 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 06:31:16 +00:00
Chris Lattner
561c0107b2
int64_t -> int
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11977 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:07:02 +00:00
Alkis Evlogimenos
fc54e83cea
Rename member function to be consistent with the rest.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11898 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 06:11:15 +00:00
Alkis Evlogimenos
57af2cf6f3
Make spiller push stores right after the definition of a register so
...
that they are as far away from the loads as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11895 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 04:51:35 +00:00
Alkis Evlogimenos
ddcfd9e6fa
Fix crash caused by passing register 0 to
...
MRegisterInfo::isPhysicalRegister().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11894 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 01:52:34 +00:00
Alkis Evlogimenos
8fa16e47f8
Clear maps right after basic block is processed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11892 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 23:22:23 +00:00
Alkis Evlogimenos
71e353ed35
Uncomment assertions that register# != 0 on calls to
...
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11882 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 22:00:20 +00:00
Chris Lattner
7b1af15612
No need to clear the map here, it will always be empty
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11868 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-26 05:21:21 +00:00
Alkis Evlogimenos
e3fcabe068
Fix bugs found with recent addition of assertions in
...
MRegisterInfo::is{Physical,Virtual}Register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11849 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 23:21:52 +00:00
Brian Gaeke
367b91d1bd
Great sparc renaming fallout IV: Sparc --> SparcV9.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11844 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 22:09:36 +00:00
Alkis Evlogimenos
1d8b28a357
Remove asssert since it is breaking cases that it shouldn't.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11841 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 22:01:06 +00:00
Alkis Evlogimenos
4d0d864be3
Add DenseMap template and actually use it for for mapping virtual regs
...
to objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11840 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 21:55:45 +00:00
Chris Lattner
95c34f2efd
Add an assertion
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11830 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 19:37:44 +00:00
Brian Gaeke
748fba141f
FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11804 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-24 19:46:00 +00:00
Alkis Evlogimenos
0d6c5b6489
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11798 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-24 08:58:30 +00:00
Alkis Evlogimenos
ec8b8bb9ab
Add predicates for checking if a virtual register has a physical
...
register mapping or a stack slot mapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11795 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-24 06:30:36 +00:00
Alkis Evlogimenos
e8124b9ddb
Make enum private as it is an implementation detail.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11782 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 23:49:40 +00:00
Alkis Evlogimenos
797428719f
Remove '4Virt' from member function names as it is obvious.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11781 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 23:47:10 +00:00
Alkis Evlogimenos
34d9bc9f16
Refactor VirtRegMap out of RegAllocLinearScan as the first part of bug
...
251 (providing a generic machine code rewriter/spiller).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11780 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 23:08:11 +00:00
Alkis Evlogimenos
575649322f
Add number of spilled registers statistic.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11759 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:45:32 +00:00
Chris Lattner
11d1f21e1d
Fix bugs in finegrainification
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11758 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:40:08 +00:00
Chris Lattner
0742b59913
Finegrainify namespacification
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11757 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:38:20 +00:00
Alkis Evlogimenos
e699b16a76
Use MachineBasicBlock::getParent().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11756 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:36:38 +00:00
Alkis Evlogimenos
e6394e2b62
Remove implementation of default constructor as it is useless now.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11755 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:28:35 +00:00
Alkis Evlogimenos
743d0a1f83
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11748 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:14:48 +00:00
Alkis Evlogimenos
12edc7ef3d
Improved PhysRegTracker interface. RegAlloc lazily allocates the register tracker using a std::auto_ptr
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11738 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 06:10:13 +00:00
Alkis Evlogimenos
fc2b449a17
Simplify iterator usage now that we have next(). Also don't pass iterators by reference now that MachineInstr* are in an ilist
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11732 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 04:12:30 +00:00
Alkis Evlogimenos
25d9d5800c
Some code cleanups from Chris
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11724 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 01:57:39 +00:00
Alkis Evlogimenos
534f545ef1
Fix comments in PhysRegTracker and rename isPhysRegAvail to isRegAvail to be consistent with the other two
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11723 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 01:25:05 +00:00
Alkis Evlogimenos
98e17cf543
Move LiveIntervals.h up to be the first included header
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11721 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 01:01:21 +00:00
Alkis Evlogimenos
888b1a6ccd
Pull PhysRegTracker out of RegAllocLinearScan as it can be used by other allocators as well
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11720 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 00:53:31 +00:00
Alkis Evlogimenos
a2f6a408dc
Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11719 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 00:50:15 +00:00
Chris Lattner
d0d1c8f830
Another bug fix for empty MBB's
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11716 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 19:37:31 +00:00
Chris Lattner
688c8252d2
Fix a bug where we were implicitly assuming that there would be at least
...
one terminator instruction in each basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11714 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 19:08:15 +00:00
Alkis Evlogimenos
0f338a1e8c
Print basic block boundaries in machine instruction debug output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11704 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 05:46:04 +00:00
Alkis Evlogimenos
7200c6b82a
Abstract merging of ranges away from number of slots per instruction.
...
Also make it less aggressive as the current implementation breaks in
some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11696 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 04:05:13 +00:00
Alkis Evlogimenos
d6f6d1a80d
Make 'fold' statistic's description the same in both allocators.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11687 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-21 18:07:33 +00:00
Alkis Evlogimenos
007726ca6f
Some more statistics improvements.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11676 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 20:53:26 +00:00
Alkis Evlogimenos
df158c7e3f
Disambiguate statistic descriptions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11675 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 20:46:49 +00:00
Alkis Evlogimenos
cea4471120
Rename statistic and add another one.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11674 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 20:43:08 +00:00
Alkis Evlogimenos
fa510c4af5
Fix crash in debug output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11659 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 06:41:12 +00:00
Alkis Evlogimenos
537fa9838d
Fix instruction numbering in debug output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11655 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 06:29:51 +00:00
Alkis Evlogimenos
39a0d5c112
Too many changes in one commit:
...
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11654 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 06:15:40 +00:00
Alkis Evlogimenos
d195e99bc8
Fix RA::verifyAssignment()
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11629 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 19:24:17 +00:00
Chris Lattner
d368c6163a
Fix problem fusing spill code into instructions: we didn't update the live
...
variable information to take into account the change of instruction
address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11628 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 18:34:02 +00:00
Chris Lattner
a96478d7d6
Fix an iterator invalidation problem. :(
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11627 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 18:32:29 +00:00
Chris Lattner
5ed001b6af
Add method to update livevar when an instruction moves
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11625 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 18:28:02 +00:00
Chris Lattner
8517e1f0be
Fix a __LONG__ term annoyance of mine: symbolic registers weren't being printed
...
by operator<< on MachineInstr's, and looking up what register "24" is all of the
time was greatly annoying.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11623 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 16:17:08 +00:00
Chris Lattner
5e61fa9519
Add a MachineBasicBlock::getParent() method
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11622 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 16:13:54 +00:00
Alkis Evlogimenos
2acef2da06
Rename reloads/spills to loads/stores.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11619 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 06:19:09 +00:00
Alkis Evlogimenos
779e640657
Implement assignment correctness verification.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11609 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 23:15:23 +00:00
Alkis Evlogimenos
52f8f56ef4
Move unused typedefs in private section. Add method to return interval
...
given a register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11608 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 23:14:52 +00:00
Chris Lattner
e6d04f1a99
Eliminate operator[] is deprecated warnings
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11578 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 16:43:51 +00:00
Chris Lattner
fdc01cedd4
Fix deprecated operator[] warnings
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11577 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 16:38:18 +00:00
Alkis Evlogimenos
23c114fd3b
Be more agressive when joining ranges.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11575 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 04:38:37 +00:00
Alkis Evlogimenos
99d9923608
Fix overly conservative spill interval computation.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11574 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 03:35:38 +00:00
Alkis Evlogimenos
3a9986f5d8
Beautify debug output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11573 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 00:35:06 +00:00
Chris Lattner
56ddada278
Remove the -disable-kill option. The register allocator is buggy with it,
...
and it was only for debugging in the first place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11557 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 17:49:10 +00:00
Chris Lattner
11390e76e7
Add support to the local allocator for fusing spill code into the instructions
...
that need them. This is very useful on CISCy targets like the X86 because it
reduces the total spill pressure, and makes better use of it's (large)
instruction set. Though the X86 backend doesn't know how to rewrite many
instructions yet, this already makes a substantial difference on 176.gcc for
example:
Before:
Time:
8.0099 ( 31.2%) 0.0100 ( 12.5%) 8.0199 ( 31.2%) 7.7186 ( 30.0%) Local Register Allocator
Code quality:
734559 asm-printer - Number of machine instrs printed
111395 ra-local - Number of registers reloaded
79902 ra-local - Number of registers spilled
231554 x86-peephole - Number of peephole optimization performed
After:
Time:
7.8700 ( 30.6%) 0.0099 ( 19.9%) 7.8800 ( 30.6%) 7.7892 ( 30.2%) Local Register Allocator
Code quality:
733083 asm-printer - Number of machine instrs printed
2379 ra-local - Number of reloads fused into instructions
109046 ra-local - Number of registers reloaded
79881 ra-local - Number of registers spilled
230658 x86-peephole - Number of peephole optimization performed
So by fusing 2300 instructions, we reduced the static number of instructions
by 1500, and reduces the number of peepholes (and thus the work) by about 900.
This also clearly reduces the number of reload/spill instructions that are
emitted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11542 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 08:09:40 +00:00
Chris Lattner
cdee28724e
Fix a bug in my previous refactoring change... arg!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11535 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 07:02:17 +00:00
Alkis Evlogimenos
7093d37304
Add LiveIntervals::Interval::empty() member function.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11520 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 05:14:37 +00:00
Chris Lattner
1e3812c1c5
Once we have a way to fold spill code reloads into instructions, we have a way to use it. :)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11517 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 04:08:37 +00:00
Alkis Evlogimenos
355a724bd8
Fix spilled interval update. It was too conservative.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11516 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 04:04:20 +00:00
Chris Lattner
42e0a8fded
Refactor code a bit. No functionality changes, though the comment hints at things to come.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11515 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 03:57:19 +00:00
Alkis Evlogimenos
aad5c05051
Add LeakDetection to MachineInstr.
...
Move out of line member functions of MachineBasicBlock to
MachineBasicBlock.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11497 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 07:17:43 +00:00
Chris Lattner
9b700f7951
By default, llvm.setjmp/llvm.longjmp intrinsics get lowered to their libc counterparts
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11483 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:24:51 +00:00
Chris Lattner
588e72db75
Refactor code. Now the intrinsic lowering pass tries to recycle preexisting
...
prototypes, even if they don't precisely match what it would prefer to use.
This fixes: CBackend/2004-02-15-PreexistingExternals.llx compiling it into:
ltmp_0_30 = memcpy(l14_C, 4u, 17);
ltmp_1_30 = memcpy(((int *)l27_A), ((unsigned )(long)l27_B), ((int )123u));
instead of:
ltmp_0_30 = memcpy(l14_C, 4u, 17);
ltmp_1_27 = l43_memcpy(l27_A, l27_B, 123u);
Which does the wrong thing as you could imagine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11481 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 22:16:39 +00:00
Alkis Evlogimenos
f11800b718
This pass should not require phi elimination or live variable
...
analysis. It should only preserve them and update LiveVariables if it
already ran.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11479 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 21:50:32 +00:00
Chris Lattner
5aaf1d2820
Finegrainify namespacification
...
Remove one of the operands of a two operand instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11478 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 21:38:28 +00:00
Alkis Evlogimenos
859a18b583
Make dense maps keyed on physical registers smallerusing
...
MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.
Also use MRegisterInfo::is{Physical,Virtual}Register where
appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11477 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 21:37:17 +00:00
Alkis Evlogimenos
843b160a20
Eliminate the use of spill (reserved) registers.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11476 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 10:24:21 +00:00
Chris Lattner
05d8350c12
Allow for fixed objects to reside in the local area, and if they don't to not
...
clobber them by allocating other objects in the same space!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11454 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:14:20 +00:00
Alkis Evlogimenos
c81efdc59c
Add back machine code deleter pass until we get a MachineCode pass
...
that will be responsible for the creation of MachineFunctions and will
be required by all MachineFunctionPass passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11453 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 00:03:15 +00:00
Chris Lattner
93799292c1
There is no reason to align the stack pointer if there are no callees of this function!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11449 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 20:10:59 +00:00
Chris Lattner
cc42d2c3cc
A target that doesn't support these intrinsics will still meet spec (the
...
intrinsic will always produce zero), but it will behave unexpectedly, so
warn like GCC does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11444 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 04:52:06 +00:00
Chris Lattner
cf89908381
Add llvm.memset/frameaddress/returnaddress intrinsics.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11431 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 02:47:17 +00:00
Alkis Evlogimenos
f81af21caf
Use newly added next() and prior() utility functions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11430 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 01:18:34 +00:00
Alkis Evlogimenos
6ab5c15962
Use std::numeric_limits<float>::infinity() instead of
...
std::numeric_limits<float>::max() for weighting preallocated
intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11427 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-14 00:44:07 +00:00
Alkis Evlogimenos
be766c7246
Remove getAllocatedRegNum(). Use getReg() instead.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11393 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 21:01:20 +00:00
Alkis Evlogimenos
4de473bc59
Use getNumVirtualRegs().
...
Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11389 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 18:20:47 +00:00
Brian Gaeke
90421cd8f9
Refactor MachineFunction::print() into MachineBasicBlock::print().
...
Add MachineBasicBlock::dump().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11364 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 04:39:55 +00:00
Brian Gaeke
21326fc2ad
Add head-of-file comments and Doxygen comments. Tighten up a lot of whitespace.
...
Rename SetMachineOperandConst's formal parameters to match other methods here.
Mark some methods as being used only by the SPARC back-end.
Fix a missing-paren bug in OutputValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11363 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 04:39:32 +00:00
Alkis Evlogimenos
ab8672c8bb
Add parent pointer to MachineInstr that points to owning
...
MachineBasicBlock. Also change opcode to a short and numImplicitRefs
to an unsigned char so that overall MachineInstr's size stays the
same.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11357 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 18:49:07 +00:00
Chris Lattner
2751e76a70
Add support for the llvm.memmove intrinsic
...
Patch graciously contributed by Reid Spencer!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11355 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 18:11:20 +00:00
Chris Lattner
5fe51cc2c4
Implement the llvm.memcpy intrinsic
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11349 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 17:01:09 +00:00
Chris Lattner
2a90ba6017
Rename the opCode instance variable to Opcode
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11348 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 16:09:53 +00:00
Chris Lattner
3081db8d01
This field is never read
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11346 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 16:04:49 +00:00
Alkis Evlogimenos
c0b9dc5be7
Change MachineBasicBlock's vector of MachineInstr pointers into an
...
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 02:27:10 +00:00
Brian Gaeke
918cdd420b
getOpCode() --> getOpcode().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11339 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 01:34:05 +00:00
Chris Lattner
61b08f193a
Add #include
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11285 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 21:18:55 +00:00
Chris Lattner
1cbe4d0ad0
Do not use MachineOperand::isVirtualRegister either!
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11283 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 21:12:22 +00:00
Chris Lattner
3d878d80d6
Eliminate users of MachineOperand::isPhysicalRegister
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11278 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 20:41:10 +00:00
Brian Gaeke
f738db0818
Move InstrSchedule's iterator begin/end methods inline.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11239 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-09 18:42:46 +00:00
Brian Gaeke
0dc5753f2b
Make SchedGraph::dump() use SchedGraphNodeCommon's const_iterator
...
instead of randomly groping about inside its outEdges array.
Make SchedGraph::addDummyEdges() use getNumOutEdges() instead of
outEdges.size().
Get rid of ifdefed-out code in SchedGraph::buildGraph().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11238 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-09 18:42:05 +00:00
Chris Lattner
ecea5635f8
Another nice speedup for the register allocator. This time, we replace
...
the Virt2PhysRegMap std::map with an std::vector. This speeds up the
register allocator another (almost) 40%, from .72->.45s in a release build
of LLC on 253.perlbmk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11219 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-09 02:12:04 +00:00
Chris Lattner
499487742e
Ugh, perform an optimization that GCC should be able to do itself. This
...
speeds up livevar from .48/.32s -> .45/.31s in LLC on perlbmk
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11217 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-09 01:43:23 +00:00
Chris Lattner
96aef89338
Only do stuff for the REAL number of physical registers we have, not 1024.
...
This speeds up live variables a lot, from .60/.39s -> .47/.26s in LLC, for
the first/second pass respectively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11216 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-09 01:35:21 +00:00
Chris Lattner
64667b6418
Change the PhysRegsUsed map into a dense array. Seeing that this is a mapping
...
from physical registers, and they are always dense, it makes sense to not have
a ton of RBtree overhead. This change speeds up regalloclocal about ~30% on
253.perlbmk, from .35s -> .27s in the JIT (in LLC, it goes from .74 -> .55).
Now live variable analysis is the slowest codegen pass. Of course it doesn't
help that we have to run it twice, because regalloclocal doesn't update it,
but even if it did it would be the slowest pass (now it's just the 2x slowest
pass :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11215 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-09 01:26:13 +00:00
Alkis Evlogimenos
f5eaf16b94
Increase code clarity.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11151 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-06 18:08:18 +00:00
Alkis Evlogimenos
54d23c754a
Eliminate uneeded lookups by passing a Virt2PhysMap::iterator instead
...
of the virtual register to certain functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11143 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-06 03:15:40 +00:00
Alkis Evlogimenos
0b8cb2bc47
Change live interval representation. Machine instructions now have two
...
slots each. As a concequence they get numbered as 0, 2, 4 and so
on. The first slot is used for operand uses and the second for
defs. Here's an example:
0: A = ...
2: B = ...
4: C = A + B ;; last use of A
The live intervals should look like:
A = [1, 5)
B = [3, x)
C = [5, y)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11141 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-05 22:55:25 +00:00
Alkis Evlogimenos
ad48cd6327
We don't need to scan the blocks that we are live-in on every
...
access. Rather we only have to do it on the creation of the interval.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11135 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-05 20:45:40 +00:00
Tanya Lattner
5a5960978a
Added missing include.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11129 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-05 05:04:39 +00:00
Alkis Evlogimenos
14be64018f
Modify the two address instruction pass to remove the duplicate
...
operand of the instruction and thus simplify the register allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-04 22:17:40 +00:00
Alkis Evlogimenos
4e7854407c
When an instruction like: A += B had both A and B virtual registers
...
spilled, A was loaded from its stack location twice. This fixes the bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11093 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-03 01:13:07 +00:00
Alkis Evlogimenos
9fe7602862
Revert changes. Will implement this using a different set of primitives
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11091 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-02 23:08:58 +00:00
Alkis Evlogimenos
cc6a1290fc
Fix debugging output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11088 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-02 22:00:32 +00:00
Alkis Evlogimenos
eea81bafd6
Correctly update def/use information for modified machine operands.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11087 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-02 21:56:40 +00:00
Alkis Evlogimenos
b606eaca1b
Should be more careful. The previously applied change made all counts
...
outside of loops = 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11085 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-02 20:29:57 +00:00
Alkis Evlogimenos
22b7e44bb0
Create an object for tracking physical register usage. This will look
...
much better when I get rid of the reserved registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11066 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-02 07:30:36 +00:00
Alkis Evlogimenos
04667297af
Change weight array into a vector and make it as big as the number of
...
registers (not as the max number of registers).
Change toSpill from a std::set into a std::vector<bool>.
Use the reverse iterator adapter to do a reverse scan of allocatable
registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11061 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 20:13:26 +00:00
Alkis Evlogimenos
f440cc19c9
Use std::map::count() instead of std::map::find() != std::map::end()
...
where appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11060 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 18:39:53 +00:00
Alkis Evlogimenos
b180e3e92b
Change string for joined intervals.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11057 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 16:13:05 +00:00
Alkis Evlogimenos
b0b0ebaac0
Change xor to ^.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11054 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 08:19:25 +00:00
Chris Lattner
d4baf0f74c
Fix a bug in a recent checkin
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11050 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 05:25:07 +00:00
Alkis Evlogimenos
676cf8cb1d
Missed one silly assert :-)
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11048 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 02:21:31 +00:00
Alkis Evlogimenos
01e74a2aab
Simplify joinIntervals() code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11047 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 02:18:31 +00:00
Alkis Evlogimenos
4f67b86648
Use MRegisterInfo::isPhysicalRegister and
...
MRegisterInfo::isVirtualRegister.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11045 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-01 01:27:01 +00:00
Alkis Evlogimenos
52220f61bb
Apply final part of Chris' patch.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11040 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 23:48:47 +00:00
Alkis Evlogimenos
02ba13c989
Be a little smarter on the way we handle physical register defs.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11038 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 23:13:30 +00:00
Chris Lattner
ef09c63e7b
Finegrainify namespacification, use new MRegisterInfo::isVirtualRegister
...
method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11037 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 21:27:19 +00:00
Chris Lattner
6b50767905
Fix, correctly this time, the computation of the return value
...
Fix a spello
Tighten up the assertion checking
No functionality changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11036 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 21:21:43 +00:00
Chris Lattner
163c1e7a69
* Fix incorrect computation of the runOnMachineFunction return value
...
* Turn a bunch of instance variables into automatic variables
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11035 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 21:14:04 +00:00
Chris Lattner
bd91c1c376
Remove unneeded #includes
...
Move Passes.h (which defines the interface to this file) to the top.
Move statistics to the top of the file.
Add a comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11034 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 21:07:15 +00:00
Alkis Evlogimenos
08cec00588
Merge safe parts from last night's buggy commit. These do not break
...
any test cases :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11032 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 19:59:32 +00:00
Alkis Evlogimenos
97017de187
Optimize liveAt() and overlaps(). We now use a binary search instead
...
of a linear search to find the first range for comparisons. This cuts
down the linear scan register allocator running time by a factor of 3
in 254.perlbmk and by a factor of 2.2 in 176.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11030 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 16:54:54 +00:00
Alkis Evlogimenos
4d46e1e521
Revert last night's changes as they broke some tests. Will remerge parts of the patch.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11029 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 14:37:41 +00:00
Alkis Evlogimenos
32bdd4ea65
Several performance enhancements and cleanups from Chris.
...
Simplification of LiveIntervals::Interval::overlaps() and addition of
examples to overlaps() and liveAt() to make them clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11028 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 04:56:07 +00:00
Chris Lattner
49a5aaacef
Finegrainify namespacification
...
Implement LiveVariables::getIndexMachineBasicBlock
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11018 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-30 22:08:53 +00:00
Brian Gaeke
09caa3751f
Give clients of MachineFunctionPrinter the ability to specify a banner and
...
choose an ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11016 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-30 21:53:46 +00:00
Alkis Evlogimenos
79b0c3f0b9
Fix failing test cases with joined live intervals. It turns out that
...
when joining we need to check if we overlap with the second interval
or any of its aliases.
Also make joining intervals the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10973 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 13:37:51 +00:00
Alkis Evlogimenos
e88280a422
Add option to join live intervals. Two intervals are joined if there
...
is a move between two registers, at least one of the registers is
virtual and the two live intervals do not overlap.
This results in about 40% reduction in intervals, 30% decrease in the
register allocators running time and a 20% increase in peephole
optimizations (mainly move eliminations).
The option can be enabled by passing -join-liveintervals where
appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10965 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 23:08:45 +00:00
Alkis Evlogimenos
84dc5fb6ba
Remove unneeded check. An interval in active, by definition overlaps
...
with the current one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10959 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 20:07:18 +00:00
Alkis Evlogimenos
ce50115006
Improve debugging output. Remove unneeded virtReg->0 mapping when
...
virtReg lives on the stack. Now a virtual register has an entry in the
virtual->physical map or the virtual->stack slot map but never in
both.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10958 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 19:24:43 +00:00
Alkis Evlogimenos
1075ecd32f
Revert previous change. The code was correct...
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10957 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 19:17:52 +00:00
Alkis Evlogimenos
e1a210777d
Fix incorrect negatives in LiveIntervals::Interval::liveAt().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10956 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 18:33:50 +00:00
Tanya Lattner
06723077ed
Moved iterators around.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10926 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-20 17:51:13 +00:00
Tanya Lattner
a105c802b2
Moved iterators to common file.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10925 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-20 17:49:42 +00:00
Alkis Evlogimenos
a12c7bb06f
Handle printing of intervals that are not assign to any physical
...
register yet (2nd try).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10896 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-16 20:33:13 +00:00
Alkis Evlogimenos
a6d8c3f845
Handle printing of intervals that are not assign to any physical
...
register yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10895 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-16 20:29:42 +00:00
Alkis Evlogimenos
3b02cbe752
Fold open interval ends handling into
...
LiveIntervals::Interval::expiredAt() and simplify regalloc code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10894 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-16 20:17:05 +00:00
Alkis Evlogimenos
1893a05b28
Add asserts to previous change.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10893 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-16 16:23:23 +00:00
Alkis Evlogimenos
f5f1689ed2
Use a list instead of a vector to store intervals. This will be needed
...
when we join intervals and one of the two will need to be removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10892 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-16 16:06:59 +00:00
Chris Lattner
f907bac068
Hrm, apparently I missed lowering this intrinsic. :(
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10858 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 20:41:29 +00:00
Alkis Evlogimenos
d6e40a6cbc
Properly update #intervals statistic.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10847 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 10:44:29 +00:00
Alkis Evlogimenos
9739736b94
Fix bug in LiveIntervals::Interval::overlaps and
...
LiveIntervals::Interval::liveAt. Both were considering the live ranges
closed in the end, when they are actually open.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10835 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 00:20:09 +00:00
Alkis Evlogimenos
5ab20273a4
Improve debugging output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10834 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-14 00:09:36 +00:00
Alkis Evlogimenos
af25473d5e
Fix miscomputation of live intervals. The catch is that registers can
...
be dead at the defining instruction but can only be killed in
subsequent ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10833 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 22:26:14 +00:00
Alkis Evlogimenos
1a119e2410
Remove allocatable registers vector. It is already provided by
...
LiveVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10830 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 22:10:43 +00:00
Alkis Evlogimenos
a3a6524965
Cleanup debugging output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10824 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 21:53:20 +00:00
Alkis Evlogimenos
63841bc85d
Fix output of live intervals to show correctly its closed, open
...
ranges, i.e. [a,b)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10822 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 21:17:47 +00:00
Alkis Evlogimenos
c55640f019
Remove unneeded check (with the recent change in live variables a use
...
of a physical register is always dominated by a def).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10821 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 21:16:25 +00:00
Alkis Evlogimenos
b7be115140
Indentation and whitespace cleanups.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10820 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 20:42:08 +00:00
Alkis Evlogimenos
f7df173e3b
Fix bug introduced by previous commit: check if fixed intervals
...
overlap before adding their spill weight.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10819 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 20:37:01 +00:00
Alkis Evlogimenos
19b6486d38
Correctly compute live variable information for physical registers
...
when an implicitely defined register is later used by an alias. For example:
call foo
%reg1024 = mov %AL
The call implicitely defines EAX but only AL is used. Before this fix
no information was available on AL. Now EAX and all its aliases except
AL get defined and die at the call instruction whereas AL lives to be
killed by the assignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10813 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 06:24:30 +00:00
Alkis Evlogimenos
b08bdc4a16
Make LiveVariables::HandlePhysRegUse and
...
LiveVariables::HandlePhysRegDef private they use information that is
not in memory when LiveVariables finishes the analysis.
Also update the TwoAddressInstructionPass to not use this interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10755 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-11 09:18:45 +00:00
Chris Lattner
ae7fc3aede
Remove use of llvm/CodeGen/InstrSelection.h
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10749 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-10 19:16:26 +00:00
Chris Lattner
d5da197071
Finegrainify namespacification.
...
This should get hunked over to the Sparc backend, along with
MachineCodeForInstruction and a bunch of files in include/llvm/Codegen,
but those battles will have to wait for a later time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10731 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-09 06:30:18 +00:00
Chris Lattner
2abcf524a1
Move InstrSelection into lib/Target/Sparc, as it's sparc specific
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10730 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-09 06:24:06 +00:00
Chris Lattner
75e260990d
Move lib/Codegen/RegAlloc into lib/Target/Sparc, as it is sparc specific
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10728 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-09 06:17:12 +00:00
Alkis Evlogimenos
7d629b50a5
Add a separate list of fixed intervals. This improves the running time
...
of the register allocator as follows:
before after
mesa 2.3790 1.5994
vpr 2.6008 1.2078
gcc 1.9840 0.5273
mcf 0.2569 0.0470
eon 1.8468 1.4359
twolf 0.9475 0.2004
burg 1.6807 1.3300
lambda 1.2191 0.3764
Speedups range anyware from 30% to over 400% :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10712 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-07 09:20:58 +00:00
Alkis Evlogimenos
1283d86b63
Minor cleanups.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10711 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-07 05:31:12 +00:00
Alkis Evlogimenos
75ca6a3e82
Remove declared but undefined method.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10710 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-07 02:29:33 +00:00
Alkis Evlogimenos
80b378cf7c
Change implementation of LiveIntervals::overlap(). This results in a
...
30-50% decrease in running time of the linear scan register allocator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10707 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-07 01:45:58 +00:00
Alkis Evlogimenos
63caedf046
Remove simple coalescing.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10695 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-05 08:24:57 +00:00
Chris Lattner
8c2403631b
fix warning
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10692 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-05 05:42:17 +00:00
Chris Lattner
77b1330ece
Add VMCore and code generator support for debugging intrinsics. By default
...
code generators completely ignore them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10691 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-05 05:36:30 +00:00
Alkis Evlogimenos
271bd2d7f1
Currently we cannot handle two-address instructions of the form:
...
A = B op C where A == C, but this cannot really occur in practice
because of SSA form. Add an assert to check that just to be safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10682 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-05 02:25:45 +00:00
Alkis Evlogimenos
50c047d159
Update description.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10681 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-04 23:09:24 +00:00
Chris Lattner
f70e0c216c
Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering
...
implementation from the TargetMachine directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10636 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 21:23:38 +00:00
Alkis Evlogimenos
27490a6fcc
Reserve ECX and EDI instead of EBX and EDI. Since EBX is a callee
...
saved register it has a longer free range than ECX (which is defined
every time there is a fnuction call) which makes ECX a better register
to reserve.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10635 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 18:03:52 +00:00
Alkis Evlogimenos
26bfc08b80
Add coalescing to register allocator. A hint is added to each interval
...
which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10634 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 17:58:18 +00:00
Chris Lattner
aed386e6b0
Whoops, don't try to lower non intrinsic calls
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10632 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 09:53:23 +00:00
Chris Lattner
f8742b3e03
Use the intrinsic lowering functionality
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10626 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 09:43:35 +00:00
Chris Lattner
42450d8a5f
Move into the VMCore library
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10623 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 08:30:20 +00:00
Chris Lattner
3b66ecb05f
Implement the default implementation of the intrinsic lowering class
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10621 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 08:19:41 +00:00
Chris Lattner
aa4c91ff96
finegrainify namespacification
...
minor cleanups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10619 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 07:59:53 +00:00
Alkis Evlogimenos
843397c237
Improve debugging output when choosing a register to spill.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10604 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-24 18:53:31 +00:00
Alkis Evlogimenos
7a40eaacee
Do a separate pass to compute spill weights because doing it inline
...
with live intervals was missing registers that were used before they
were defined (in the arbitrary order live intervals numbers
instructions).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10603 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-24 15:44:53 +00:00
Alkis Evlogimenos
3bf564a95f
Change the way free regusters are computed and perform better
...
allocation in the presence of preallocated intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10595 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-23 18:00:33 +00:00
Alkis Evlogimenos
056063e264
Fix crash when compiling twolf.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10584 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-22 13:54:29 +00:00
Alkis Evlogimenos
4de1fefd7c
Remove verifyIntervals() since it doesn't actually work right now.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10570 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-21 20:41:26 +00:00
Alkis Evlogimenos
6b4edbaaf9
Change weight into a float so that we can take into account the
...
nesting level when computing it. Right now the allocator uses:
w = sum_over_defs_uses( 10 ^ nesting level );
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10569 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-21 20:19:10 +00:00
Alkis Evlogimenos
169cfd0196
Add support for inactive intervals. This effectively reuses registers
...
for live ranges that fall into assigned registers' holes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10566 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-21 05:43:40 +00:00
Chris Lattner
16c45e9de8
Add a new target-independent machine code freeing pass
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10560 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 10:20:58 +00:00
Chris Lattner
07f32d48f1
* Finegrainify namespacification
...
* Move sparc specific code out of generic code
* Eliminate the getOffset() method which made INVALID_FRAME_OFFSET
necessary, which made pulling in MAX_INT as a sentinal necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10553 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 09:17:07 +00:00
Alkis Evlogimenos
4c080863de
Remove TwoAddressInstruction from the public headers and add an ID
...
instead, since this pass doesn't expose any state to its users.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10520 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 22:40:24 +00:00
Chris Lattner
5e46b513f3
Prune some #includes
...
Add a statistic for # reloads
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10518 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 20:25:31 +00:00
Alkis Evlogimenos
a71e05acdd
Modify linear scan register allocator to use the two-address
...
instruction pass. This also fixes all remaining bugs for this new
allocator to pass all tests under test/Programs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10515 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 13:15:02 +00:00
Alkis Evlogimenos
a3d0e5c2b2
Fix bug in reserved registers. DH actually aliases DX and EDX which
...
are not reserved registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10514 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 13:12:18 +00:00
Alkis Evlogimenos
9af9dbde7d
Modify local register allocator to use the two-address instruction pass.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10513 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 13:08:52 +00:00
Alkis Evlogimenos
71499ded4d
Add TwoAddressInstructionPass to handle instructions that have two or
...
more operands and the two first operands are constrained to be the
same. The pass takes an instruction of the form:
a = b op c
and transforms it into:
a = b
a = a op c
and also preserves live variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10512 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 13:06:04 +00:00
Alkis Evlogimenos
485ec3c21e
Rename LiveIntervals::expired() to LiveIntervals::expiredAt().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10511 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 08:56:11 +00:00
Alkis Evlogimenos
43f692f90f
When a variable is killed and redifined in a basic block only one
...
killing instruction is tracked. This causes the LiveIntervals to
create bogus intervals. The workaound is to add a range to the
interval from the redefinition to the end of the basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10510 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 08:53:43 +00:00
Alkis Evlogimenos
dd2cc65f34
Handle multiple virtual register definitions gracefully.
...
Move some of the longer LiveIntervals::Interval method out of the
header and add debug information to them. Fix bug and simplify range
merging code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10509 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 08:48:48 +00:00
Alkis Evlogimenos
f6f91bf668
Change preserve all claim to just preserve live variables and phielimination.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10469 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-15 04:55:38 +00:00
Alkis Evlogimenos
4d7af65903
Change interface of MachineOperand as follows:
...
a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
b) add isUse(), isDef()
c) rename opHiBits32() to isHiBits32(),
opLoBits32() to isLoBits32(),
opHiBits64() to isHiBits64(),
opLoBits64() to isLoBits64().
This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10461 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-14 13:24:17 +00:00
Alkis Evlogimenos
94743e4915
When reserving a preallocated register spill the aliases of this
...
register too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10450 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 11:58:10 +00:00
Alkis Evlogimenos
4c214d2bf0
Ignore non-allocatable physical registers in live interval analysis.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10449 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 11:11:02 +00:00
Alkis Evlogimenos
7d65a12fe6
Expire any active intervals left when register allocation is done.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10448 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 05:50:19 +00:00
Alkis Evlogimenos
f6e610c27d
Add instruction numbers to debugging output.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10447 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 05:48:57 +00:00
Alkis Evlogimenos
9435eda699
Handle explicit physical register defs.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10445 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 05:26:39 +00:00
Alkis Evlogimenos
efe995a406
Remove unecessary if statements when looping on ImplicitDefs.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10444 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 01:20:58 +00:00
John Criswell
f5ba89df1f
This appears to fix Bug 172 and does not break any other feature tests or
...
regression tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10388 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-10 22:51:41 +00:00
Alkis Evlogimenos
a327e7fea9
Make assertion stricter. Since the source operands are allocated at
...
this point, the second operand must be a physical register (it cannot
be a virtual one).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10292 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-05 11:31:39 +00:00
Alkis Evlogimenos
49787e35c3
Fix bug in register spilling when a preallocated live range overlaps a
...
potential register assignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10291 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-05 11:17:55 +00:00
Alkis Evlogimenos
b27ef248f5
Move operator<<(std::ostream&, const LiveInterval&) out of the header file.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10290 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-05 10:38:28 +00:00
Alkis Evlogimenos
91ceae6d20
Sort live intervals by increasing start point.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10289 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-05 10:32:01 +00:00
Alkis Evlogimenos
69546d5f84
Improve debugging output and clean up some code.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10288 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-04 03:57:28 +00:00
Alkis Evlogimenos
585870759b
Print instructions before register allocation is performed. Also fix
...
bug where spill instructions were added to the next basic block
instead of the end of the current one if the instruction that required
the spill was the last in the block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10272 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-30 23:40:39 +00:00
Alkis Evlogimenos
99d1a8f048
Remove "numReloaded" statistic.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10268 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-30 05:15:36 +00:00
Alkis Evlogimenos
ff0cbe175d
Merging the linear scan register allocator in trunk. It currently passes most tests under test/Programs/SingleSource/Benchmarks/Shootout so development will continue on trunk. The allocator is not enabled by default. You will need to pass -regallo=linearscan to lli or llc to use it.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10103 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-20 03:32:25 +00:00
Brian Gaeke
d0fde30ce8
Put all LLVM code into the llvm namespace, as per bug 109.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-11 22:41:34 +00:00
Brian Gaeke
e9414cab00
Fix problems linking against the reoptimizer; _llvm_regAllocState must have
...
externally-visible linkage, and SaveStateToModule must default to true for llc.
I don't remember why I made it const; perhaps it should be deconstified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9858 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-10 07:12:01 +00:00
Brian Gaeke
213904133d
Operand numbers are now ints. Save the register allocation of the value
...
each instruction produces as "operand" -1, and the other operands as 0
.. n, as before. PhyRegAlloc::saveState() is refactored into
PhyRegAlloc::saveStateForValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9842 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-10 00:05:26 +00:00
Misha Brukman
e2bf0a2c36
Let's not forget about our friends -- Constant Pool indices.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9750 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-06 00:04:11 +00:00
Chris Lattner
414d9d2707
Do not use a class before it is defined.
...
Be gcc 3.4 clean
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9727 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-05 06:25:06 +00:00
Brian Gaeke
55766e139a
Update verifySavedState()'s comment, so that it reflects its current
...
status. In doFinalization(), skip over external functions, just like
Anand's mapping info does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9703 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-04 22:42:41 +00:00
Brian Gaeke
cce4e7a1b1
Add comments.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9697 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-04 18:25:56 +00:00
Brian Gaeke
3ceac85296
Include llvm/CodeGen/MachineCodeForInstruction.h. Use it to start
...
implementing verifySavedState().
In saveState(), use the new AllocInfo::AllocStateTy enum, and increment
Insn each time through the loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9617 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-30 21:21:33 +00:00
Brian Gaeke
82c5eb7bc8
Make AllocState an enum.
...
Move the stringifying method for that enum into class AllocInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9616 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-30 21:21:22 +00:00
Brian Gaeke
8fc493430c
Publicize the type of FnAllocState.
...
Prototype option to save state in a global instead of as a Constant in
the Module. (Turned off, for now, with the on/off switch welded in the off
position. You get the idea.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9500 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-24 21:21:58 +00:00
Chris Lattner
3e43026095
standardize command line option names
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9496 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-24 20:05:58 +00:00
Brian Gaeke
232db6e8d6
Move the implementations of ==, != on AllocInfos here, from UnpackTraceFunction.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9452 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 20:39:18 +00:00
Brian Gaeke
537132bf12
Move AllocInfo structure to a private AllocInfo.h header file.
...
Make FnAllocState contain vectors of AllocInfo, instead of LLVM Constants.
Give doFinalization a method comment, and let it do the work of converting
AllocInfos to LLVM Constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9451 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 20:32:55 +00:00
Brian Gaeke
b8dbbcee25
Make FnAllocState contain vectors of AllocInfo, instead of LLVM Constants.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9450 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 20:32:02 +00:00
Brian Gaeke
3d7125cd66
New file, containing AllocInfo structure.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9449 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 20:31:51 +00:00
Misha Brukman
f54c437714
* Eliminate `using' directive
...
* Fix order of #includes
* Make code layout more consistent
* Eliminate extraneous whitespace and comment-lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9433 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 18:10:02 +00:00
Misha Brukman
396c8c34ed
* Fix order of #include files
...
* Doxygen-ify method comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9432 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 18:06:27 +00:00
Misha Brukman
0d82a54bb9
* Order #includes as per style guide
...
* Doxygen-ify comments
* Make code layout more consistent
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9431 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 18:03:50 +00:00
Misha Brukman
a1f64355d7
* Use C++ style comments instead of C-style
...
* Make file description more readable
* Make code layout more consistent, include comment in assert so it's visible
during execution if it hits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9430 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 18:02:47 +00:00
Misha Brukman
0849f5ace9
* Eliminate `using' directive
...
* Make code layout more consistent
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9427 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 17:43:17 +00:00
Misha Brukman
5e152593e0
Make code layout more consistent.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9426 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 17:39:37 +00:00
Brian Gaeke
3692fd97a6
Change the type of FnAllocState.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9388 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-22 20:44:29 +00:00
Brian Gaeke
60a3c55c4f
Don't worry about converting each function's reg. alloc. state into One Big
...
Constant early on, because we can do it in doFinalization.
Tighten up a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9387 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-22 20:44:23 +00:00
Brian Gaeke
b8dc21e1e2
Add prototype for verifySavedState().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9386 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-22 20:23:13 +00:00
Brian Gaeke
af84370908
Doxygenify method comments.
...
Try to improve method comments a little.
Get rid of some excess whitespace; put braces on previous line when possible.
Add stub for method to verify the work of saveState().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9385 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-22 20:22:53 +00:00
John Criswell
aefb666d07
Added LLVM copyright notice.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9324 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-21 15:29:18 +00:00
John Criswell
856ba76200
Added LLVM copyright header.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9321 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-21 15:17:13 +00:00
John Criswell
e488e9360b
Added LLVM copyright notice to Makefiles.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9312 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 22:26:57 +00:00
John Criswell
b576c94c15
Added LLVM project notice to the top of every C++ source file.
...
Header files will be on the way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9298 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 19:43:21 +00:00
Chris Lattner
3b237fcd38
Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9269 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-19 21:34:28 +00:00
Chris Lattner
60fa583545
#include vector which we will need here soon
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9144 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-15 22:09:32 +00:00
Chris Lattner
fd05924946
Decrease usage of use_size()
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9135 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-15 16:48:29 +00:00
Chris Lattner
cf3056db0f
Regularize header file comments
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9071 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-13 03:32:08 +00:00
Misha Brukman
aa41c3ca20
* Doxygenified comments
...
* Wrap code at 80 columns
* Ordered includes according to LLVM style guide
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9020 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-10 17:41:32 +00:00
Alkis Evlogimenos
73ff5120eb
Change MRegisterDesc::AliasSet, TargetInstrDescriptor::ImplicitDefs
...
and TargetInstrDescriptor::ImplicitUses to always point to a null
terminated array and never be null. So there is no need to check for
pointer validity when iterating over those sets. Code that looked
like:
if (const unsigned* AS = TID.ImplicitDefs) {
for (int i = 0; AS[i]; ++i) {
// use AS[i]
}
}
was changed to:
for (const unsigned* AS = TID.ImplicitDefs; *AS; ++AS) {
// use *AS
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8960 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08 05:20:08 +00:00
Alkis Evlogimenos
7237ecef13
Moved enum and command-line option in separate file. Also added function that returns the user selected register allocator to the caller.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8819 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-02 16:57:49 +00:00
Chris Lattner
797c136607
include passes.h which defines the interface this file exposes
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8793 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 20:13:59 +00:00
Brian Gaeke
222bd53c2c
Update head-of-file comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8699 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-24 18:16:23 +00:00
Brian Gaeke
6a256cc37c
Untabify tabs in stuff I've recently added.
...
Check in my register allocator state-saving code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8698 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-24 18:08:54 +00:00
Brian Gaeke
59b1c566c9
Use getRegClassID() instead of getRegClass()->getID(), since it's there.
...
Shorten the markSuggestedColorUsable method.
Add a switch for saving reg. alloc. state (coming soon).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8697 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-24 17:50:28 +00:00
Brian Gaeke
eefaeb84f1
Remove some unused methods of class IGNode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8696 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-24 04:29:52 +00:00
Chris Lattner
8474f6fcda
Move getAnalysisUsage method from header to .cpp file. Add a normal file
...
header comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8679 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-23 15:13:04 +00:00
Brian Gaeke
bd353fb662
Use C++ math header instead of C version.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8648 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 03:57:37 +00:00
Brian Gaeke
37bc4cce9b
Erase now-unused prototypes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8647 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 02:51:00 +00:00
Brian Gaeke
874f423f54
Rearrange #includes ... since there are fewer now I guess it's a win.
...
(I also zapped printMachineCode() and printLabel() at the previous checkin,
but forgot to mention it.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8646 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 02:50:21 +00:00
Brian Gaeke
5779ef2ce0
Standardize the names of include guards.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8645 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 02:31:37 +00:00
Brian Gaeke
fdb2596c77
Standardize the names of include guards.
...
Remove more excess whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8644 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 02:31:25 +00:00
Brian Gaeke
6264fb70c1
Standardize the names of include guards.
...
Fix typos in file header comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8643 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 02:31:15 +00:00
Brian Gaeke
43ce8fe477
I tried to standardize the formatting and tidy up the huge amount of
...
excess whitespace a little. Also improved some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8642 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 02:24:09 +00:00
Brian Gaeke
4efe342424
Convert PhyRegAlloc into a proper pass.
...
PhyRegAlloc.cpp:
Don't include TargetMachine.h or TargetRegInfo.h, because these are provided
by PhyRegAlloc.h.
Merge class RegisterAllocator into class PhyRegAlloc.
Simplify & move ctor, dtor to PhyRegAlloc.h.
Make some of PhyRegAlloc's reference members into pointer members,
so they can be more easily messed with.
MarkAllocatedRegs() becomes a member method, with fewer args.
PhyRegAlloc.h:
Include Pass.h, TargetMachine.h and TargetRegInfo.h. Don't declare
TargetRegInfo forward.
Give AddedInstrns the obvious clear() method.
Make some of PhyRegAlloc's reference members into pointer members,
so they can be more easily messed with.
Add prototype for markAllocatedRegs().
Remove unused inline void constructLiveRanges().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8641 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-21 01:23:46 +00:00
Misha Brukman
6eba07a6a3
Fixed spelling.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8588 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-17 21:34:23 +00:00
Brian Gaeke
305f02dd64
Fix typo in comment. Take out some random whitespace.
...
(Partial merge from my working file)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8564 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-16 15:38:05 +00:00
Brian Gaeke
d0534a863a
Edit comment for accuracy
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8562 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-16 15:36:50 +00:00
Vikram S. Adve
bed4effb84
Add flag to control whether or not delay slots are filled during
...
instruction scheduling (this is off by default).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8553 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-16 05:55:15 +00:00
Brian Gaeke
41de073b04
Fix typos in comments.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8523 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-15 05:28:42 +00:00
Misha Brukman
37f92e2568
Fixed spelling and grammar.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8489 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-11 22:34:13 +00:00
Chris Lattner
be4063babd
Don't build dead directories
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8308 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:34:15 +00:00
Chris Lattner
79a4e8e2d6
Remove dead library makefile
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8304 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:29:43 +00:00
Chris Lattner
02b81351f9
Remove makefile for dead library
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8303 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:26:52 +00:00
Chris Lattner
84681f1184
LiveRange.h is now in lib/CodeGen/RegAlloc
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8299 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:17:13 +00:00
Chris Lattner
893f9541dc
LiveRangeInfo got moved into the lib/CodeGen/RegAlloc directory
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8297 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:12:17 +00:00
Chris Lattner
70b2f56e76
PhyRegAlloc.h got moved to lib/CodeGen/RegAlloc
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8296 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:09:04 +00:00
Chris Lattner
c083dcccbf
Move IGNode from public include directory to here. Minor cleanups like adding std:: namespace qualifiers
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8295 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:05:47 +00:00
John Criswell
c9afb499f6
Fixed two double free bugs that caused llc to segfault or run forever.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8191 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-28 21:43:17 +00:00
Tanya Lattner
3b6b6ba4be
Removing README
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8180 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-28 17:17:59 +00:00
Tanya Lattner
4f839ccf49
Putting my revised version of ModuloScheduling in cvs. This is not complete...
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8179 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-28 17:12:14 +00:00
Tanya Lattner
8dc9982e2e
Moved index into BB to common graph class because its needed by ModuloSchedGraph.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8174 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-28 15:30:40 +00:00
Tanya Lattner
d6d863392f
Added/removed header file
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8160 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-27 15:12:24 +00:00
Tanya Lattner
c50ee556e5
*** empty log message ***
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8153 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-27 02:42:58 +00:00
Tanya Lattner
b6489f3153
First version of SchedGraph common class and refactoring of SchedGraph.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8148 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-25 22:42:20 +00:00