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Commit Graph

708 Commits

Author SHA1 Message Date
Chris Lattner
064dd4ef95 Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator.
Remvoe some dead code

llvm-svn: 5070
2002-12-16 14:37:00 +00:00
Chris Lattner
93b0272717 Some simpliciations to the spill/reload interface
llvm-svn: 5067
2002-12-15 23:01:26 +00:00
Chris Lattner
6a2d7bef14 Simplify PHI node elimination significantly by doing it as a prepass to
register allocation

llvm-svn: 5066
2002-12-15 22:39:53 +00:00
Chris Lattner
ebb82f7f96 Variety of small or trivial simplifications to the code, completely eliminated
the dependence on PhysRegClassMap

llvm-svn: 5064
2002-12-15 22:19:19 +00:00
Chris Lattner
370918a2db Remove unused savePhysRegToStack method
llvm-svn: 5061
2002-12-15 21:33:51 +00:00
Chris Lattner
35ceaa7322 Localize a map, remove another
llvm-svn: 5060
2002-12-15 21:24:30 +00:00
Chris Lattner
f499e065be Give simple reg allocator a nice Pass Name
llvm-svn: 5058
2002-12-15 21:13:12 +00:00
Chris Lattner
da3e75b117 Add a big assert making sure 2 address instructions are formed right
llvm-svn: 5057
2002-12-15 21:02:20 +00:00
Chris Lattner
e8acf72d80 Fix a problem that occurs when PHI nodes have multiple entries for the same predecessor
llvm-svn: 5055
2002-12-15 20:48:03 +00:00
Chris Lattner
234abaea18 Grab bag of minor cleanups. Export some statistics about the number of
spills and reloads emitted

llvm-svn: 5054
2002-12-15 20:36:09 +00:00
Chris Lattner
dd307412c4 Implement printing of MBB arguments
llvm-svn: 5053
2002-12-15 20:35:25 +00:00
Chris Lattner
4214ac384a Simplify interfaces used by regalloc to insert code
llvm-svn: 5052
2002-12-15 20:06:35 +00:00
Chris Lattner
351dc9af16 * Simplify code a bit by breaking the PHI node handling stuff out into a seperate
function from normal regalloc code
* Make the regalloc for a block a function instead of part of runOnMachineBB, which
  makes it easier to see what's going on in runOnMBB.

llvm-svn: 5051
2002-12-15 19:51:14 +00:00
Chris Lattner
6c5c2a58ee * Remove some unneccesary instance variables
* Make allocateStackSpaceFor only allocate the right amount of space

llvm-svn: 5048
2002-12-15 19:07:34 +00:00
Chris Lattner
c43cb38245 pull inverse reg class mapping into a class that is sharable and out of the
target register description classes.

llvm-svn: 5045
2002-12-15 18:38:59 +00:00
Chris Lattner
2c20e950be Prune #includes
llvm-svn: 5044
2002-12-15 18:19:24 +00:00
Chris Lattner
aab9196e79 Remove extraneous #includes, perform FIXME
llvm-svn: 5043
2002-12-15 18:15:24 +00:00
Chris Lattner
41ad5c9aff Fix borkness with not using MachineBasicBlocks in PHI nodes
llvm-svn: 5035
2002-12-15 08:02:51 +00:00
Misha Brukman
de680081ab Fixed a bug where moves due to phis were being neglected.
llvm-svn: 5019
2002-12-13 12:33:31 +00:00
Misha Brukman
1f57df5fad Need to insert all moves due to PHI nodes before *ALL* jumps in a predecessor
basic block, as there could be multiple.

llvm-svn: 5016
2002-12-13 11:55:59 +00:00
Misha Brukman
0bfbbc73f2 This should be more correct: invalidates physical registers that are used in
an instruction to avoid using them to allocate to other virtual registers.

llvm-svn: 5013
2002-12-13 11:33:22 +00:00
Misha Brukman
e694e406a4 Fixed bug with running out of registers. Also, reinstated namespace which
disappeared during the last checkin.

llvm-svn: 5007
2002-12-13 10:42:31 +00:00
Misha Brukman
af40b6adcd This should handle register allocating PHI nodes.
llvm-svn: 5002
2002-12-13 09:54:36 +00:00
Misha Brukman
e5a8dcc695 Start allocating stack space at [ebp-4] to not overwrite the return address.
Also make all loads & stores 4-byte aligned for performance. ;)

llvm-svn: 4982
2002-12-13 04:34:02 +00:00
Misha Brukman
12bec4ecef Take advantage of our knowledge of 2-address X86 instructions and
register-allocated them appropriately.

llvm-svn: 4976
2002-12-12 23:20:31 +00:00
Misha Brukman
8f56246d62 Added code generation for function prologues and epilogues.
llvm-svn: 4930
2002-12-04 23:58:08 +00:00
Misha Brukman
566bac5ec1 Fun arithmetic with iterators aimed at fixing a bug: inserting instructions
after the *current* instruction while keeping the iterator in the same
'logical' place.

llvm-svn: 4923
2002-12-04 19:24:45 +00:00
Chris Lattner
994984de43 Print out direct global references
llvm-svn: 4906
2002-12-04 06:44:41 +00:00
Misha Brukman
f13126a427 This should fix the bug seen with some registers not being allocated
correctly: skipping instructions by incorrectly incrementing the pointer.

Also adds support for building a reg-to-regclass map, and splits the function
for saving register to stack into two, one suitable for virtual registers
(which also assigns it a physical register) and one for simply storing back
physical registers.

llvm-svn: 4898
2002-12-03 23:15:19 +00:00
Chris Lattner
47478b4dce Checkin debug implementation of MCE
llvm-svn: 4893
2002-12-03 20:56:42 +00:00
Misha Brukman
f776547336 * Abstracted out stack space allocation into its own function
* Added saving of register values to the stack

llvm-svn: 4858
2002-12-02 21:11:58 +00:00
Misha Brukman
021bf57248 A simple (spilling) register allocator.
llvm-svn: 4828
2002-11-22 22:44:32 +00:00
Misha Brukman
2bf32bfea1 Initialize the SSARegMap.
llvm-svn: 4782
2002-11-20 18:55:27 +00:00
Chris Lattner
3afc487fba Print is const!
llvm-svn: 4737
2002-11-17 23:22:13 +00:00
Chris Lattner
8ac4eea84b Remove only uses of markDef/markDefAndUse methods
llvm-svn: 4719
2002-11-17 22:14:08 +00:00
Chris Lattner
0141841bc4 Fix warning
llvm-svn: 4649
2002-11-09 00:49:43 +00:00
Chris Lattner
0478222ec2 Move function to cpp file from header
llvm-svn: 4510
2002-11-02 22:07:51 +00:00
Chris Lattner
4b8d170d55 New iostream definitions
llvm-svn: 4482
2002-11-01 16:46:05 +00:00
Vikram S. Adve
8ecd939ce9 Restore support for indirect function calls (which briefly wasn't working
after I removed annotations on MachineInstr for the CallDescriptor).

llvm-svn: 4469
2002-10-31 15:34:48 +00:00
Chris Lattner
8fa0840abd Remove fixme
llvm-svn: 4447
2002-10-30 02:02:37 +00:00
Chris Lattner
98e6bad1ee Add special code to make printing SSA form machine instructions nicer
llvm-svn: 4446
2002-10-30 01:55:38 +00:00
Chris Lattner
8dfb0ef7b0 Use MRegisterInfo, if available, to print symbolic register names
llvm-svn: 4438
2002-10-30 00:58:19 +00:00
Chris Lattner
2cfa08e4bf Implement structured machine code printing
llvm-svn: 4435
2002-10-30 00:48:05 +00:00
Chris Lattner
e89cb8ba64 Make argsize calculation stuff optional, so that Targets without FrameInfo
objects yet don't die

llvm-svn: 4427
2002-10-29 23:40:03 +00:00
Chris Lattner
64fa3f3e97 Implement autoinserting ctor
llvm-svn: 4426
2002-10-29 23:19:00 +00:00
Chris Lattner
de3938a592 Rename annotation id
llvm-svn: 4425
2002-10-29 23:18:43 +00:00
Chris Lattner
fc88414ffd Merge with sparc backend
llvm-svn: 4403
2002-10-29 20:10:58 +00:00
Chris Lattner
0ac25d509c X86 merge is complete, eliminate unused code
llvm-svn: 4400
2002-10-29 20:07:16 +00:00
Vikram S. Adve
4acb69b4ea Remove separate vector of implicit refs from MachineInstr, and
instead record them as extra operands in the operands[] vector.
Also, move CallArgsDescriptor into this class instead of making it an
annotation on the machine instruction.

llvm-svn: 4399
2002-10-29 19:41:18 +00:00
Vikram S. Adve
1730a958ea Move CallArgsDescriptor into this class instead of making it an
annotation on the machine instruction.

llvm-svn: 4398
2002-10-29 19:38:46 +00:00
Chris Lattner
b49e35e745 Move TargetInstrDescriptors extern to the one .cpp file that refers to it:
MachineInstr.cpp

llvm-svn: 4392
2002-10-29 17:40:30 +00:00
Chris Lattner
fa303f1bb7 Use higher level methods, don't use TargetInstrDescriptors directly!
llvm-svn: 4389
2002-10-29 17:35:39 +00:00
Chris Lattner
c3e30fed7b Use higher level method
llvm-svn: 4386
2002-10-29 17:25:41 +00:00
Chris Lattner
80c0746b11 Remove #include, misleading comment, and a typedef used only once
llvm-svn: 4383
2002-10-29 17:08:05 +00:00
Chris Lattner
8ae0be7897 Inline typedef, eliminate unused method
llvm-svn: 4382
2002-10-29 17:03:19 +00:00
Chris Lattner
8ab1906b5f Remove long dead #if 0
llvm-svn: 4381
2002-10-29 17:00:19 +00:00
Chris Lattner
9739fc7ff1 Add #includes that were eliminated from headers
llvm-svn: 4380
2002-10-29 16:51:05 +00:00
Chris Lattner
0493b81eef De-inline methods
llvm-svn: 4379
2002-10-29 16:50:33 +00:00
Chris Lattner
6c092a9ea7 Remove #include
llvm-svn: 4378
2002-10-29 16:50:20 +00:00
Chris Lattner
4aba455989 Remove unneeded #include
llvm-svn: 4377
2002-10-29 16:50:06 +00:00
Chris Lattner
f658cf4988 Remove forward decl
llvm-svn: 4376
2002-10-29 16:49:44 +00:00
Chris Lattner
0cff6f7e16 Make assertIGNode be private to the InterferenceGraph.cpp file
llvm-svn: 4375
2002-10-29 16:42:34 +00:00
Chris Lattner
7d6709e213 MachineInstrInfo no longer #includes this header, so we must
llvm-svn: 4366
2002-10-28 23:54:47 +00:00
Chris Lattner
566b2147f9 Remove all traces of the "Opcode Mask" field in the MachineInstr class
llvm-svn: 4359
2002-10-28 21:17:20 +00:00
Chris Lattner
11f52470a0 Remove more default arguments that are never used
llvm-svn: 4358
2002-10-28 21:02:40 +00:00
Chris Lattner
990e074c2e Remove default operands that are never used
llvm-svn: 4357
2002-10-28 20:59:49 +00:00
Chris Lattner
de6ac9b0ff * Make MachineOperand ctors private, so MachineOperand can only be created
by MachineInstr.
* Add a bunch of new methods to allow incremental addition of operands to the
  machine instr instance.

llvm-svn: 4356
2002-10-28 20:48:39 +00:00
Misha Brukman
f9d06cfc80 Replaced uses of deprecated `MachineFunction::get(BasicBlock *BB)'.
llvm-svn: 4351
2002-10-28 20:00:31 +00:00
Chris Lattner
74f9160190 Remove two arguments that are never specified
llvm-svn: 4348
2002-10-28 19:46:59 +00:00
Chris Lattner
4b652d5505 Rename some regalloc fields
llvm-svn: 4346
2002-10-28 19:43:23 +00:00
Chris Lattner
bd1add2005 Eliminate usage of MachineBasicBlock::get
llvm-svn: 4344
2002-10-28 19:22:04 +00:00
Chris Lattner
fdca057f8d Remove usage of MachineBasicBlock::get
llvm-svn: 4342
2002-10-28 19:01:16 +00:00
Chris Lattner
a7ca1bd65c Remove usage of MachineBasicBlock::get
llvm-svn: 4341
2002-10-28 18:50:08 +00:00
Chris Lattner
2263f89d3b Eliminate unneccesary use of MachineBasicBlock::get
llvm-svn: 4339
2002-10-28 06:01:57 +00:00
Chris Lattner
f2cd0a8266 s/method/function
llvm-svn: 4338
2002-10-28 05:58:46 +00:00
Chris Lattner
7cdc2977f0 Change MachineBasicBlock's to not be Annotations, instead they are kept as
part of a linked list tracked by MachineFunction.  MachineBasicBlock::get
is now linear time instead of constant time, and thus is deprecated!

llvm-svn: 4337
2002-10-28 05:30:46 +00:00
Chris Lattner
89a424167f Make Scheduling Class variables be 'unsigned' instead of 'int'
llvm-svn: 4333
2002-10-28 04:53:02 +00:00
Chris Lattner
e309cdbc95 Rename the redundant MachineOperand::getOperandType() to MachineOperand::getType()
llvm-svn: 4331
2002-10-28 04:45:29 +00:00
Chris Lattner
7000bbb63f Fairly major overhaul of MachineInstr & Operand classes
- Inline methods that are mostly a single line anyway
  - Eliminate several methods that were never called
  - Group methods a bit more consistently

llvm-svn: 4329
2002-10-28 04:24:49 +00:00
Chris Lattner
dd22b9e8b6 Add #includes now that MachineInstr.h doesn't include llvm/Target/MachineInstrInfo.h
llvm-svn: 4327
2002-10-28 02:28:39 +00:00
Chris Lattner
a7e9d3e90f Don't #include <Support/*>, #include "Support/*"
llvm-svn: 4325
2002-10-28 02:11:53 +00:00
Chris Lattner
df1d87f5f3 *** empty log message ***
llvm-svn: 4323
2002-10-28 02:01:37 +00:00
Chris Lattner
6b66fadf2c MachineFunction now includes MachineBasicBlock so there is no need to
reinclude it

llvm-svn: 4322
2002-10-28 02:01:35 +00:00
Chris Lattner
b8c6acfbc0 Rename MachineCodeForBasicBlock to MachineBasicBlock
llvm-svn: 4318
2002-10-28 01:41:47 +00:00
Chris Lattner
ef1475aa32 *** empty log message ***
llvm-svn: 4317
2002-10-28 01:41:27 +00:00
Chris Lattner
4f2c612b21 Inline some methods from .cpp files into .h files, minor cleanups
llvm-svn: 4313
2002-10-28 01:21:55 +00:00
Chris Lattner
61e42343e5 Minor cleanups
llvm-svn: 4312
2002-10-28 01:16:38 +00:00
Chris Lattner
33b00d8186 Move machine code generation/destruction passes out of Sparc.cpp because
they are generic

llvm-svn: 4310
2002-10-28 01:12:41 +00:00
Chris Lattner
ce3ede5938 Prune #includes
llvm-svn: 4307
2002-10-28 01:02:51 +00:00
Chris Lattner
ffa0482331 Updates to match misha's changes
llvm-svn: 4302
2002-10-28 00:37:53 +00:00
Misha Brukman
142795fd17 Changed MachineCodeForMethod' to MachineFunction'.
llvm-svn: 4301
2002-10-28 00:28:31 +00:00
Chris Lattner
a952881e00 Initial checkin of codegen infrastructure for LLVM-JIT
llvm-svn: 4282
2002-10-25 22:54:41 +00:00
Chris Lattner
47508d5c0f Tell PassManager that this pass does not invalidate the CFG so that dominator
information and Loop info will not have to be recomputed after this runs.

llvm-svn: 4269
2002-10-23 03:30:47 +00:00
Chris Lattner
b8ffbe6966 Ensure definate initialization
llvm-svn: 4263
2002-10-22 23:34:11 +00:00
Chris Lattner
dfc8fbf16b - Two minor improvements to the MachineInstr class to reduce footprint and
overhead: Merge 3 parallel vectors into 1, change regsUsed hash_set to be a
    bitvector.  Sped up LLC a little less than 10% in a debug build!

llvm-svn: 4261
2002-10-22 23:16:21 +00:00
Vikram S. Adve
3a54b695ce Significant improvement: GEP used by a load or store no longer generates
a separate ADD; instead just use the indexed load/store instruction!
Also, a bug fix: folding a GEP with a leading non-zero index with
its predecessor was incorrect: now it only happens if the predecessor
is pointing to an indexable type (aka SequentialType).

llvm-svn: 4168
2002-10-14 16:30:55 +00:00
Vikram S. Adve
e18a54c249 Use vectors instead of hash_maps for issueGaps and conflictLists.
These hash lookups were a major sink of time because they happen so often!
Also, add option to disable scheduling.

llvm-svn: 4138
2002-10-13 00:40:37 +00:00
Vikram S. Adve
211f972d28 Major bug fix: was not adding CD edges for RETURNs!
llvm-svn: 4137
2002-10-13 00:39:22 +00:00
Vikram S. Adve
be4905b56a Major bug fix: spill code for an instruction in a delay slot was
merrily being inserted before/after the instruction!

llvm-svn: 4116
2002-10-11 16:12:40 +00:00
Vikram S. Adve
f19f08c3ab Don't pad variables in stack slots for performance!
llvm-svn: 4115
2002-10-11 16:10:53 +00:00
Vikram S. Adve
01e64b5eef Bug fix in folding getElementPtr instructions: don't fold one into
a predecessor if it has a non-zero first index and the predecessor
ends with a struct index.

llvm-svn: 3982
2002-09-29 22:55:05 +00:00
Vikram S. Adve
69d19cf9a9 Convert DIRS to PARALLEL_DIRS. They can be built independently.
llvm-svn: 3972
2002-09-29 11:52:14 +00:00
Vikram S. Adve
59778ef96d Added a couple of helper methods for live range construction.
llvm-svn: 3970
2002-09-28 17:05:43 +00:00
Vikram S. Adve
2710051771 Live ranges for Return value and return address of a Call are now
created here, simply by handling all implicit operands (which should
have been done anyway).

llvm-svn: 3969
2002-09-28 17:05:22 +00:00
Vikram S. Adve
7e39b876eb Fixed method getReturnValue(): it should return NULL if the
callee does not return a value.

llvm-svn: 3968
2002-09-28 17:03:54 +00:00
Vikram S. Adve
7c0175962a Fixed incorrect assertion: spill code for function ptr should be
handled like normal operands, not like other call arguments.

llvm-svn: 3967
2002-09-28 17:02:40 +00:00
Vikram S. Adve
c795b90eac Sign-extend integer constants from original type size to 64 bits!
llvm-svn: 3958
2002-09-27 14:26:20 +00:00
Vikram S. Adve
07a33b5553 Add method IGNode::getCombinedDegree to count the sum of the degrees
of two nodes, excluding duplicates.

llvm-svn: 3848
2002-09-20 00:55:04 +00:00
Vikram S. Adve
1d139cf8de Add PostOpts/ and rename PreSelection/ to PreOpts/.
llvm-svn: 3847
2002-09-20 00:53:53 +00:00
Vikram S. Adve
47303cde2d Add method MachineInstr::replace to rewrite a machine instruction in place.
llvm-svn: 3843
2002-09-20 00:47:49 +00:00
Vikram S. Adve
ccb33335a3 Allow copy coalescing in more cases: if sum of node degrees is more than
than #available regs, compute the sum excluding duplicates and if that
is less than #regs, go ahead and coalesce.
Add method IGNode::getCombinedDegree to count excluding duplicates.

llvm-svn: 3842
2002-09-20 00:45:47 +00:00
Vikram S. Adve
82b15d7253 Peephole optimization pass on final machine code.
llvm-svn: 3840
2002-09-20 00:42:11 +00:00
Vikram S. Adve
8dc14ec198 Files moved to CodeGen/PreOpts.
llvm-svn: 3839
2002-09-20 00:30:46 +00:00
Vikram S. Adve
6f0ad9998b Moving these files from Code/PreSelection to here.
Original logs for PreSelection.cpp:

  revision 1.2
  date: 2002/09/17 23:50:32;  author: lattner;  state: Exp;  lines: +1 -3
  Don't put default parameter values into .cpp files, it breaks 3.x compilers

  revision 1.1
  date: 2002/09/16 15:31:13;  author: vadve;  state: Exp;
  New preselection pass that specializes LLVM code for a target machine,
  while remaining in legal portable LLVM form and preserving type
  information and type safety.

llvm-svn: 3838
2002-09-20 00:29:28 +00:00
Chris Lattner
86e6e0f6e3 Don't put default parameter values into .cpp files, it breaks 3.x compilers
llvm-svn: 3799
2002-09-17 23:50:32 +00:00
Chris Lattner
7c1b7e5889 Add support for GCC 2.96
llvm-svn: 3777
2002-09-17 17:23:09 +00:00
Vikram S. Adve
04cace44d8 Add subdirectory PreSelection.
llvm-svn: 3739
2002-09-16 15:32:07 +00:00
Vikram S. Adve
a5b251ed67 New preselection pass that specializes LLVM code for a target machine,
while remaining in legal portable LLVM form and preserving type
information and type safety.

llvm-svn: 3738
2002-09-16 15:31:13 +00:00
Vikram S. Adve
3d9c3e8751 Dump routine now writes out allocated register numbers if available.
llvm-svn: 3737
2002-09-16 15:18:53 +00:00
Vikram S. Adve
df1e95af82 Improve and fix error in allocating stack slots: adjust alignment after adding
base address of the relevant region (instead of assuming that each region
is maximally aligned).

llvm-svn: 3736
2002-09-16 15:18:16 +00:00
Vikram S. Adve
533c888d4a Add a version of ChooseRegOrImmed to handle numerical constants
introduced by InstrSelection.

llvm-svn: 3735
2002-09-16 15:15:57 +00:00
Vikram S. Adve
74823d9145 Add an assertion.
llvm-svn: 3734
2002-09-16 15:13:59 +00:00
Vikram S. Adve
69cf056052 Fix typos in previous checkin.
llvm-svn: 3726
2002-09-15 15:33:48 +00:00
Chris Lattner
db2c0b75ab RegAllocCommon no longer includes CommandLine.h so we have to include it
here.

llvm-svn: 3725
2002-09-15 07:07:55 +00:00
Vikram S. Adve
2ebafaf8ff Break RA_DEBUG option into several levels to get better control over
debug output.

llvm-svn: 3724
2002-09-14 23:05:33 +00:00
Vikram S. Adve
8d2a9260ef Remove unnecessary include.
llvm-svn: 3723
2002-09-14 23:04:52 +00:00
Vikram S. Adve
263de0387d Break RA_DEBUG option into several levels to get better output.
llvm-svn: 3722
2002-09-14 22:18:37 +00:00
Vikram S. Adve
7cad54b354 Moving to lib/CodeGen/RegAlloc.
llvm-svn: 3718
2002-09-14 11:57:17 +00:00
Chris Lattner
23bd92aeeb Fix a bug I introduced into the code generator. :(
llvm-svn: 3694
2002-09-12 20:27:10 +00:00
Chris Lattner
18e3c4ff50 - Change getelementptr instruction to use long indexes instead of uint
indexes for sequential types.

llvm-svn: 3681
2002-09-11 01:21:29 +00:00
Chris Lattner
22bcab6bd5 Make sure the leakdetector is told about temporary Phi nodes also, so it doesn't
erroneously report them as leaks

llvm-svn: 3624
2002-09-08 21:19:29 +00:00
Chris Lattner
1c2e1ebb5c Inform the memory leak detector that TmpInstruction objects should not be
subject to memory leak checking.

llvm-svn: 3623
2002-09-08 21:08:43 +00:00
Chris Lattner
3ce5b343c5 - Renamed Type::isIntegral() to Type::isInteger()
- Added new method Type::isIntegral() that is the same as isInteger, but
    also accepts bool.

llvm-svn: 3574
2002-09-03 01:08:28 +00:00
Anand Shukla
9a0d43e242 moved this file from lib/Reoptimizer/Mapping
llvm-svn: 3519
2002-08-27 22:47:33 +00:00
Anand Shukla
687dea3dcf Makefile for new sub directory
llvm-svn: 3518
2002-08-27 22:46:38 +00:00
Anand Shukla
5bb28c7358 Added Mapping subdir
llvm-svn: 3517
2002-08-27 22:45:49 +00:00
Vikram S. Adve
b8a0f00662 Use newly-added type inspection support in InstTreeNode subclasses.
llvm-svn: 3501
2002-08-24 21:02:09 +00:00
Vikram S. Adve
3190395e10 Moved code here to extract memory instruction indices and to check
whether FoldGetElemNodes should be called.  This is machine-independent
but was in the Sparc directory.  This is in a new function: GetMemInstArgs.

llvm-svn: 3500
2002-08-24 21:00:08 +00:00
Anand Shukla
656de9732b Added #include <alloca.h>
llvm-svn: 3491
2002-08-23 10:54:26 +00:00
Chris Lattner
20b85d96e4 Eliminated the MemAccessInst class, folding contents into GEP class.
llvm-svn: 3487
2002-08-22 23:37:20 +00:00
Vikram S. Adve
0672c43566 dumpNode() does not need to print MachineInstrs.
llvm-svn: 3444
2002-08-22 02:59:46 +00:00
Vikram S. Adve
21b0deb4ab Unary Not (boolean and bitwise) is no longer a separate LLVM instruction
but is instead implemented with XOR.  Note that the InstrForest opLabels
for Not and BNot remain the same, i.e., the XOR is recognized and
represented as a (boolean or bitwise) Not when building the instruction
trees.  But these tree nodes are now binary, not unary.

llvm-svn: 3343
2002-08-15 14:19:22 +00:00
Vikram S. Adve
87928f2098 Add method MachineInstr::substituteValue() which substitutes
one Value with another one in all operands and implicit references
of the machine instruction.

llvm-svn: 3306
2002-08-14 16:52:58 +00:00
Chris Lattner
8a4787495a * Removed extraneous #includes
* Fixed file headers to be consistent with the rest of LLVM
* Other minor fixes

llvm-svn: 3278
2002-08-09 20:08:06 +00:00
Chris Lattner
4d9fadc44a * Removed extraneous #includes
* Fixed file headers to be consistent with the rest of LLVM
* Other minor fixes

llvm-svn: 3277
2002-08-09 20:08:03 +00:00
Chris Lattner
c95ce32146 We are using std::vector, so remove extraneous namespace prefixes
llvm-svn: 3275
2002-08-09 20:05:34 +00:00
Chris Lattner
12af061d07 Very minor cleanups
llvm-svn: 3271
2002-08-09 18:55:18 +00:00
Chris Lattner
a21e315db4 - Cleaned up the interface to AnalysisUsage to take analysis class names
instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument

llvm-svn: 3265
2002-08-08 19:01:30 +00:00
Chris Lattner
91d4742562 - Cleaned up the interface to AnalysisUsage to take analysis class names
instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument

llvm-svn: 3264
2002-08-08 19:01:28 +00:00
Vikram S. Adve
3489677a7e Add function GetConstantValueAsUnsignedInt.
Fix 2 bugs in FoldGetElemChain so index vector is not modified
when no GEPs are folded in, and so a hasLeadingZero is computed
only for the last folded GEP, not the one after that if any.

llvm-svn: 3244
2002-08-04 20:49:49 +00:00
Chris Lattner
44a988ebf2 * Move InstructionSelection Pass here instead of living in Sparc.cpp. It
is platform independant afterall.
* Object orientize the functions, cleanup code a bit.  Instead of static
  global functions, the helpers for instruction selection are now part of
  the InstructionSelection Pass class.

llvm-svn: 3147
2002-07-30 03:57:36 +00:00
Chris Lattner
17bb18af72 Remove unused vector
llvm-svn: 3143
2002-07-30 02:52:40 +00:00
Chris Lattner
9da0755dd0 Refix stuff for GCC 2.95, 3.0.4 & 3.1
llvm-svn: 3094
2002-07-25 18:04:48 +00:00
Mehwish Nagda
4968d78ef0 now removes deleted nops from MachineCodeForInstruction
llvm-svn: 3090
2002-07-25 17:31:05 +00:00
Chris Lattner
05fe67c0d2 *** empty log message ***
llvm-svn: 3075
2002-07-25 06:17:51 +00:00
Chris Lattner
5d262d3846 *** empty log message ***
llvm-svn: 3058
2002-07-24 21:21:33 +00:00
Chris Lattner
ad8fc4ba3e Non-standard hash classes are not in the std:: namespace
llvm-svn: 3057
2002-07-24 21:21:33 +00:00
Chris Lattner
9860e64083 *** empty log message ***
llvm-svn: 3056
2002-07-24 21:21:32 +00:00
Mehwish Nagda
7311aa4f84 moving to the Reoptimizer/Mapping dir
llvm-svn: 2993
2002-07-22 22:10:55 +00:00
Chris Lattner
99ad379582 *** empty log message ***
llvm-svn: 2985
2002-07-22 02:10:13 +00:00
Mehwish Nagda
78d892eb4f changed size computation
llvm-svn: 2974
2002-07-19 22:54:08 +00:00
Mehwish Nagda
219eac01f4 added check for Function with 0 BB
llvm-svn: 2942
2002-07-17 23:40:33 +00:00
Mehwish Nagda
01b0cf5ea1 Now will profile all Basic Blocks
llvm-svn: 2922
2002-07-16 17:48:27 +00:00
Mehwish Nagda
b73d836e54 Initial checking : Writes LLVM - MI mappiing to the .s file
llvm-svn: 2911
2002-07-15 23:08:49 +00:00
Anand Shukla
d70cde528d added std:: to endl
llvm-svn: 2875
2002-07-11 00:17:17 +00:00
Vikram S. Adve
cd544ed252 Fix print of BB name in dump().
llvm-svn: 2861
2002-07-10 21:45:30 +00:00
Vikram S. Adve
62f569e4ea Add support for marking each operand as a %hh, %hm, %lm or %lo.
Represent previous bools and these ones with flags in a single byte
per operand.

llvm-svn: 2860
2002-07-10 21:45:04 +00:00
Anand Shukla
33b491bba2 changed mem_fun to std::mem_fun
llvm-svn: 2847
2002-07-09 19:18:56 +00:00
Vikram S. Adve
0b32273208 Significant changes to correctly spill CC registers and to correctly
handle conditional move instructions:
-- cpMem<->Reg functions now support CC registers (int and FP) correctly.
-- Scratch registers must be explicitly provided to cpMem<->Reg when
   needed, since CC regs need one to be copied to/from memory.
-- CC regs are saved to a scratch register instead of stack.
-- All regs used by a instruction are now recorded in MachineInstr::regsUsed,
   since regs used to save values *across* an instruction are not obvious
   either from the operands or from the LiveVar sets.
-- An (explicit or implicit) operand may now be both a def and a use.
   This is needed for conditional move operations.
   So an operand may need spill code both before and after the instruction.
-- class MachineCodeForBasicBlock is now an annotation on BasicBlock.

llvm-svn: 2833
2002-07-08 23:15:32 +00:00
Vikram S. Adve
a8c7633d5b MachineInstr* in vector are not const (and never really were)
because operands may be modified directly to set register.
Also, class MachineCodeForBasicBlock is now an annotation on BasicBlock.

llvm-svn: 2832
2002-07-08 23:07:26 +00:00
Vikram S. Adve
3e8b72f0e3 Rename static struct Initializer to avoid name conflict with BB.
llvm-svn: 2831
2002-07-08 23:04:31 +00:00
Vikram S. Adve
25d81936d2 Fix printing of BB in dump.
llvm-svn: 2830
2002-07-08 23:03:54 +00:00
Vikram S. Adve
f6d73e9711 Moved class MachineCodeForBasicBlock to MachineCodeForBasicBlock.h.
This class is now an annotation on BasicBlock.

llvm-svn: 2829
2002-07-08 23:03:10 +00:00
Vikram S. Adve
5b4c4a9326 MachineInstr::dump() now takes no arguments.
llvm-svn: 2828
2002-07-08 23:01:46 +00:00
Vikram S. Adve
a2381d3998 Implementation of class MachineCodeForBasicBlock.
Moved here from MachineInstr.cpp to make it an annotation on BasicBlock.

llvm-svn: 2827
2002-07-08 23:01:11 +00:00
Vikram S. Adve
4efbb9c931 A single MachineInstr operand may now be both a def and a use,
so additional dep. edges have to be added.
This was needed to correctly handle conditional move instructions!
MachineCodeForBasicBlock is now an annotation on BasicBlock.
Renamed "earliestForNode" to "earliestReadyTimeForNode".

llvm-svn: 2826
2002-07-08 22:59:23 +00:00
Vikram S. Adve
58b597078f getUsableUniRegAtMI interface simplified slightly.
llvm-svn: 2822
2002-07-08 22:39:36 +00:00
Vikram S. Adve
a110ccca19 Moved class MachineCodeForBasicBlock to MachineCodeForBasicBlock.{cpp,h}.
An (explicit or implicit) operand may now be both a def and a use.
Also add a set of regs used by each instruction.
dump() no longer takes an optional argument, which doesn't work in gdb.

llvm-svn: 2821
2002-07-08 22:38:45 +00:00
Vikram S. Adve
d82933c6c8 MachineInstr* in vector are not const (and never really were)
because operands may be modified directly to set register.

llvm-svn: 2820
2002-07-08 22:34:40 +00:00
Chris Lattner
5339840831 Remove tag that just clutters diffs
llvm-svn: 2807
2002-06-30 16:08:25 +00:00
Anand Shukla
ee7ed50bb4 changes to make it compatible with 64bit gcc
llvm-svn: 2791
2002-06-25 20:55:50 +00:00
Chris Lattner
dfd421a7df MEGAPATCH checkin.
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2779
2002-06-25 16:13:24 +00:00
Chris Lattner
d7cbd7d5d2 MEGAPATCH checkin.
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2778
2002-06-25 16:13:21 +00:00
Chris Lattner
e61bc07952 Convert RegClass::IsColorUsedArr from a dynamically allocated array to
a vector.  This makes asserting on array bounds easier.

llvm-svn: 2731
2002-05-23 15:50:03 +00:00
Chris Lattner
7d0544f0cc Move debug options out of header files so that the header does not have
to #include CommandLine.h.

llvm-svn: 2712
2002-05-22 17:08:27 +00:00
Chris Lattner
07732a38b7 Avoid #including CommandLine.h
llvm-svn: 2710
2002-05-22 17:06:56 +00:00
Chris Lattner
1752fa9899 Hide debugging options
llvm-svn: 2676
2002-05-20 21:39:10 +00:00
Chris Lattner
0cfea31aee Don't lose namespace qualifications on previous patch.
llvm-svn: 2664
2002-05-20 17:38:26 +00:00
Vikram S. Adve
21ed1be093 InstrnsBefore and InstrnsAfter are now vectors instead of deques.
May be slightly less efficient but significantly reduces special
cases interfaces in code generation.

llvm-svn: 2649
2002-05-19 15:41:33 +00:00
Vikram S. Adve
3d968bccd8 Better folding getelementptr operations with mixed
array and struct indexes.
Update operand values in CallArgsDescriptor (a new class)
when replacing constant values with immediates.

llvm-svn: 2645
2002-05-19 15:34:29 +00:00
Vikram S. Adve
883c425f15 cpValue2Value now needs a vector of MachineInstr to store return values.
llvm-svn: 2644
2002-05-19 15:31:08 +00:00
Vikram S. Adve
1f8badf623 Annotation class for MachineInstr.
llvm-svn: 2643
2002-05-19 15:30:21 +00:00
Vikram S. Adve
6133689517 Numerous bug fixes:
-- passing FP arguments to functions with more than 6 arguments
-- passing FP arguments to varargs functions
-- passing FP arguments to functions with no prototypes
-- incorrect coloring for CC registers (both int and FP): interferences
   were being completely ignored for int CC and were considered but no
   spills were marked for fp CC!

Also some code improvements:
-- better interface to generating machine instr for common cases
   (many places still need to be updated to use this interface)
-- annotations on MachineInstr to communicate information from
   one codegen phase to another (now used to pass information about
   CALL/JMPLCALL operands from selection to register allocation)
-- all sizes and offests in class TargetData are uint64_t instead of uint

llvm-svn: 2642
2002-05-19 15:29:31 +00:00
Chris Lattner
fd8d5b852c Replace all usages of Type::isPointerType with isa<PointerType>
llvm-svn: 2486
2002-05-06 16:15:30 +00:00
Chris Lattner
ba813cb36f Add neccesary #include
llvm-svn: 2406
2002-04-29 18:48:55 +00:00
Chris Lattner
96e0c48175 Eliminate duplicate or unneccesary #include's
llvm-svn: 2397
2002-04-29 17:42:12 +00:00
Chris Lattner
589debc4ba Add new optional getPassName() virtual function that a Pass can override
to make debugging output a lot nicer.

llvm-svn: 2395
2002-04-29 14:57:45 +00:00
Chris Lattner
e7143ad386 Include appropriate file
llvm-svn: 2379
2002-04-28 20:40:16 +00:00
Chris Lattner
321a8cf4ba Split ConstantVals.h into Constant.h and Constants.h
llvm-svn: 2378
2002-04-28 19:55:58 +00:00
Chris Lattner
07fe96ca98 Eliminate the cfg namespace, moving LoopInfo, Dominators, Interval* classes
to the global namespace

llvm-svn: 2370
2002-04-28 16:21:30 +00:00
Chris Lattner
f043c4baac Remove all contents of the cfg namespace to the global namespace
llvm-svn: 2369
2002-04-28 16:19:42 +00:00
Chris Lattner
2f0ee1833d s/Method/Function
llvm-svn: 2336
2002-04-27 07:27:19 +00:00
Chris Lattner
536cf1b13f * Rename MethodPass class to FunctionPass
- Rename runOnMethod to runOnFunction
* Transform getAnalysisUsageInfo into getAnalysisUsage
  - Method is now const
  - It now takes one AnalysisUsage object to fill in instead of 3 vectors
    to fill in
  - Pass's now specify which other passes they _preserve_ not which ones
    they modify (be conservative!)
  - A pass can specify that it preserves all analyses (because it never
    modifies the underlying program)
* s/Method/Function/g in other random places as well

llvm-svn: 2333
2002-04-27 06:56:12 +00:00
Vikram S. Adve
95b080aca1 Don't record instructions for copying method arguments in the
AddedInstrns sets for the first machine instruction.  It is hard
to ensure that the right order is preserved, and sure enough, the
order was broken.  Instead, use a separate set for the function entry.

llvm-svn: 2318
2002-04-25 04:46:28 +00:00
Vikram S. Adve
f69db4f795 Don't record instructions for copying method arguments in the
AddedInstrns sets for the first machine instruction.  It is hard
to ensure that the right order is preserved, and sure enough, the
order was broken.  Instead, use a separate set for the function entry.

llvm-svn: 2312
2002-04-25 04:34:15 +00:00
Vikram S. Adve
ad382a01be Improve printing during dumps.
llvm-svn: 2311
2002-04-25 04:31:18 +00:00
Vikram S. Adve
9f9392ec24 Optional args are no longer allocated as they are discovered.
(This can be improved to avoid making the initial pass over the method.)
Also, ensure automatic vars and reg. spills areas are not extended
if their sizes are used for computing some other offset.

llvm-svn: 2310
2002-04-25 04:30:43 +00:00
Chris Lattner
572d298aa6 Only emit message if DEBUG_RA is on
llvm-svn: 2252
2002-04-15 20:36:15 +00:00
Chris Lattner
5e12c7caf5 Move FunctionArgument out of iOther.h into Argument.h and rename class to
be 'Argument' instead of FunctionArgument.

llvm-svn: 2216
2002-04-09 19:48:49 +00:00
Chris Lattner
97ce718b8d No need to reserve space, erasing does not change the size of the container.
llvm-svn: 2201
2002-04-09 18:01:21 +00:00
Chris Lattner
119c675af7 * Add a file header with some information
* Delete the DelaySlotInfo objects created by the SchedulingManager class.
  These leaked objects were accounting for 3/4 of the memory leaked by the
  backend, so this is a relatively major win.
* Reorganize SchedulingManager::getDelaySlotInfoForInstr so that it has
  better code locality (making it easier to read).

llvm-svn: 2197
2002-04-09 05:45:58 +00:00
Chris Lattner
cd23d94446 Clean up the ownership model a bit so that nodes actually get deleted more
frequently. This still leaks edges quite a bit, but it leaks no nodes
(I think).

llvm-svn: 2190
2002-04-09 05:15:33 +00:00
Chris Lattner
ee0fa0eb15 Convert AddedInstrMapType to contain AddedInstrns by value instead of by
pointer so that they do not all get leaked!

llvm-svn: 2188
2002-04-09 05:13:04 +00:00
Chris Lattner
7bc600203b GCC3.0 is reported to die without an alloca definition.
llvm-svn: 2186
2002-04-09 03:37:11 +00:00
Chris Lattner
e7a2ce6e4e Don't leak memory like a seive
llvm-svn: 2185
2002-04-08 23:09:07 +00:00
Chris Lattner
56229b8690 Value cannot be directly instantiated. I think that this code was TRYING to
make a PHI node, although it was badly broken.  This keeps tests passing, so
we'll go with it.

llvm-svn: 2184
2002-04-08 22:05:54 +00:00
Chris Lattner
c8166cec07 s/Method/Function
llvm-svn: 2180
2002-04-08 22:03:57 +00:00
Chris Lattner
cd3575a5cf s/method/function
llvm-svn: 2177
2002-04-08 22:01:15 +00:00
Chris Lattner
bc15ae64dd Change references to the Method class to be references to the Function
class.  The Method class is obsolete (renamed) and all references to it
are being converted over to Function.

llvm-svn: 2144
2002-04-07 20:49:59 +00:00
Vikram S. Adve
44ee4184e4 Add method clearCallInterference().
llvm-svn: 2071
2002-03-31 18:58:14 +00:00
Vikram S. Adve
c2c33ba3fd Include temp. values when computing max. size of stack frame!
llvm-svn: 2070
2002-03-31 18:57:49 +00:00
Vikram S. Adve
1e6ab6f476 Fix a bug in previous bug fix.
llvm-svn: 2069
2002-03-31 18:56:51 +00:00
Vikram S. Adve
fbdd533059 Bug fix: address used by indirect call instruction should also
be marked as having a Call Interference, even though it may not
be live after the call.

llvm-svn: 2068
2002-03-31 18:54:37 +00:00
Chris Lattner
849c762b02 Change references from Method to Function
change references from MethodARgument to FunctionArgument

llvm-svn: 1991
2002-03-26 18:01:55 +00:00
Vikram S. Adve
3dfd5b888b Destroy MethodLiveVarInfo after register allocation.
llvm-svn: 1976
2002-03-24 03:54:03 +00:00
Vikram S. Adve
fa2ed7e6b1 Use deterministic iterator for SchedGraphs. This is actually not
useful right now when we only do local scheduling.

llvm-svn: 1975
2002-03-24 03:53:03 +00:00
Vikram S. Adve
058ec11ea3 Bug fix: nextToTry was not being initialized in one case.
llvm-svn: 1974
2002-03-24 03:46:15 +00:00
Vikram S. Adve
37d44e7de9 Add option to disable scheduling.
llvm-svn: 1973
2002-03-24 03:45:35 +00:00
Vikram S. Adve
0cdcf40121 Add option to disable scheduling.
Destroy live-variable information after scheduling so it is
recomputed before later phases (e.g., reg. allocation).
Use deterministic iterator to enumerate sched graphs.

llvm-svn: 1972
2002-03-24 03:44:55 +00:00
Vikram S. Adve
d18a1cc9fb Minor changes.
llvm-svn: 1971
2002-03-24 03:40:59 +00:00
Vikram S. Adve
e06cac463f Re-fix bug: Put back MachineCodeForInstruction::dropAllReferences.
llvm-svn: 1970
2002-03-24 03:40:11 +00:00
Vikram S. Adve
b347d2796c Fix padding for variables allocated on stack.
llvm-svn: 1969
2002-03-24 03:39:26 +00:00
Vikram S. Adve
34306e0e1c Major overhaul to FoldGetElemPtr to handle mixed array and struct refs.
llvm-svn: 1968
2002-03-24 03:37:53 +00:00
Vikram S. Adve
8493ae74b2 Use deterministic iterator for treeRoots.
llvm-svn: 1967
2002-03-24 03:36:52 +00:00
Vikram S. Adve
a141a7190b Change treeRoots data structure to make enumeration deterministic.
llvm-svn: 1962
2002-03-24 03:24:00 +00:00
Chris Lattner
c481e92886 Rename Method to Function
llvm-svn: 1957
2002-03-23 22:51:58 +00:00
Vikram S. Adve
8553fc5d21 Big bug fix: getUsableUniRegAtMI needed to return values in arguments
but did not pass the arguments by reference!

llvm-svn: 1906
2002-03-18 03:37:19 +00:00
Vikram S. Adve
855ed3d941 Added function computeOffsetforLocalVar to check how big the
offset-from-FP will be before allocating space for a local variable.

llvm-svn: 1905
2002-03-18 03:36:30 +00:00
Vikram S. Adve
edc1adae11 Bug fix in setting CC register.
Also use distinct names for the three types of SetMachineOperand
to avoid painful overloading problems and errors.

llvm-svn: 1904
2002-03-18 03:35:24 +00:00
Vikram S. Adve
b26ed73c33 Constants are now added to the constant pool only when a load
instruction is actually generated for them.
Rename the different versions of SetMachineOperand.

llvm-svn: 1903
2002-03-18 03:33:43 +00:00
Vikram S. Adve
3fe5a9e913 Use vector for machine instructions returned by GetInstructionsByRule.
Fix constants in instructions generated for Phi elimination.

llvm-svn: 1902
2002-03-18 03:31:54 +00:00
Vikram S. Adve
125cd33f99 Big bug fix: getUsableUniRegAtMI needed to return values in arguments
but did not pass the arguments by reference!
Also added a function to get a register class by ID.

llvm-svn: 1901
2002-03-18 03:26:48 +00:00
Anand Shukla
32c3ca3f0c Change to make it build with GCC 2.95.3
llvm-svn: 1802
2002-02-26 18:57:15 +00:00
Chris Lattner
c1de0d6e83 * Make it compile with GCC 3.0.4
llvm-svn: 1788
2002-02-24 23:01:56 +00:00
Chris Lattner
3cffcc10bc * Silence signed/unsigned warnings
* Make it compile with GCC 3.0.4

llvm-svn: 1787
2002-02-24 23:01:50 +00:00
Chris Lattner
8e9be000a7 * Pull BasicBlock::pred_* and BasicBlock::succ_* out of BasicBlock.h and into
llvm/Support/CFG.h
* Make pred & succ iterators for intervals global functions
* Add #includes that are now neccesary because BasicBlock.h doesn't include
  InstrTypes.h anymore

llvm-svn: 1750
2002-02-12 22:39:50 +00:00
Chris Lattner
b0a2c5546b Method.h no longer includes BasicBlock.h
Method::inst_* is now in llvm/Support/InstIterator.h
GraphTraits specializations for BasicBlock and Methods are now in llvm/Support/CFG.h

llvm-svn: 1746
2002-02-12 21:07:25 +00:00
Chris Lattner
e282c0b592 Convert operand iterator over to work like an STL iterator
llvm-svn: 1720
2002-02-05 06:02:59 +00:00
Chris Lattner
5337fbec40 Minor change: Methods that return ValueSet's that are guaranteed to be valid
return references instead of pointers.

llvm-svn: 1719
2002-02-05 04:20:12 +00:00
Chris Lattner
862fab4da7 * Code Cleanups
* Removal dependencies on Type.h & remove uses of getTypeID()

llvm-svn: 1718
2002-02-05 03:52:29 +00:00