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559 Commits

Author SHA1 Message Date
Chris Lattner
d44868a709 Initial checkin of "local" register allocator. Bugs are still present. 
llvm-svn: 5078
 2002-12-16 16:15:28 +00:00
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