42d59219c7
Rename MachineOptInfo to TargetoptInfo
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Rename MachineCacheInfo to TargetCacheInfo
llvm-svn: 5203
2002-12-29 02:50:35 +00:00
ca4362fee7
Rename FunctionFrameInfo to MachineFrameInfo
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llvm-svn: 5200
2002-12-28 21:08:26 +00:00
871e591e34
Rename MachineFrameInfo to TargetFrameInfo.h
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llvm-svn: 5199
2002-12-28 21:00:25 +00:00
c8b36e6362
Initial checkin of Prolog/Epilog code inserter, which is an important part
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of the abstract frame representation
llvm-svn: 5198
2002-12-28 20:43:30 +00:00
bf9d12ac8b
* Convert to be a MachineFunctionPass instance
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* Use new FunctionFrameInfo object to manage stack slots instead of doing
it directly
* Adjust to new MRegisterInfo API
* Don't take a TM as a ctor argument
* Don't keep track of which callee saved registers are modified
* Don't emit prolog/epilog code or spill/restore code for callee saved regs
* Use new allocation_order_begin/end iterators to simplify dramatically the
logic for picking registers to allocate
* Machine PHI nodes can no longer contain constant arguments
* Use a bitvector to keep track of registers used instead of a set
* Fix problem where explicitly referenced registers would be added to
regsused set and never removed
llvm-svn: 5196
2002-12-28 20:42:14 +00:00
b4e4111d75
* Convert to be a MachineFunctionPass instance
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* Use new FunctionFrameInfo object to manage stack slots instead of doing
it directly
* Adjust to new MRegisterInfo API
* Don't take a TM as a ctor argument
* Don't keep track of which callee saved registers are modified
* Don't emit prolog/epilog code or spill/restore code for callee saved regs
* Use new allocation_order_begin/end iterators to simplify dramatically the
logic for picking registers to allocate
* Machine PHI nodes can no longer contain constant arguments
llvm-svn: 5195
2002-12-28 20:40:43 +00:00
fd1ecadb1d
* Add printing support for FrameIndex operands
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llvm-svn: 5194
2002-12-28 20:37:37 +00:00
32525647e1
* A bunch of functionality and data was removed from MachineFunction and put
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into a new MachineFunctionInfo class
* Implement new FunctionFrameInfo class
llvm-svn: 5193
2002-12-28 20:37:16 +00:00
0733616ec7
Frame info moved out of MachineFunction into a seperate object
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llvm-svn: 5192
2002-12-28 20:35:34 +00:00
42714ec1bd
Adjust to simpler spill interface
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Only spill and reload caller saved registers that are actually modified.
llvm-svn: 5145
2002-12-25 05:05:46 +00:00
ee73450749
Adjustments to work with the simpler spill interface
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llvm-svn: 5144
2002-12-25 05:04:20 +00:00
448fb45b2d
Remove dependency on SSARegMap.h by MachineFunction.h
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llvm-svn: 5143
2002-12-25 05:03:22 +00:00
763729c5cd
Substantial fixes to live range handling, fixing several problems, getting
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strtol to not miscompile, and fixing bug: 2002-12-23-LocalRAProblem.llx
llvm-svn: 5132
2002-12-24 00:04:55 +00:00
095eac8109
Fix compilation on GCC 2.96
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llvm-svn: 5113
2002-12-23 23:44:04 +00:00
d4627093de
* Fix several register aliasing bugs
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* Add a new option to eliminate spilling of registers that are only used
within a basic block.
llvm-svn: 5106
2002-12-18 08:14:26 +00:00
dc451c6d27
Implicit defs/uses list may be empty.
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llvm-svn: 5103
2002-12-18 01:11:14 +00:00
ac5f3b3ed3
Use new reginfo interface
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llvm-svn: 5099
2002-12-17 04:19:40 +00:00
0ea32b8dd3
Add prolog/epilog spills/reloads to counters
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Move X86 specific alignment gunk to X86 files
llvm-svn: 5096
2002-12-17 03:16:10 +00:00
4664bd5798
Fix many bugs, regallocator now saves callee-save registers instead of target
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llvm-svn: 5093
2002-12-17 02:50:10 +00:00
0129b86d55
* Fix a gross X86 hack that was intended to avoid allocating SP and BP
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* Implement register alias set support
llvm-svn: 5082
2002-12-16 17:44:42 +00:00
1d84f0a461
Keep the stack frame aligned.
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llvm-svn: 5081
2002-12-16 17:42:40 +00:00
101b8cd9b6
Initial checkin of "local" register allocator. Bugs are still present.
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llvm-svn: 5078
2002-12-16 16:15:28 +00:00
c63d63a7c7
Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator.
...
Remvoe some dead code
llvm-svn: 5070
2002-12-16 14:37:00 +00:00
bc1e6700eb
Some simpliciations to the spill/reload interface
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llvm-svn: 5067
2002-12-15 23:01:26 +00:00
4e560ee65b
Simplify PHI node elimination significantly by doing it as a prepass to
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register allocation
llvm-svn: 5066
2002-12-15 22:39:53 +00:00
292083aaf5
Variety of small or trivial simplifications to the code, completely eliminated
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the dependence on PhysRegClassMap
llvm-svn: 5064
2002-12-15 22:19:19 +00:00
2af545d034
Remove unused savePhysRegToStack method
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llvm-svn: 5061
2002-12-15 21:33:51 +00:00
ed594b6b20
Localize a map, remove another
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llvm-svn: 5060
2002-12-15 21:24:30 +00:00
1499e5a92c
Give simple reg allocator a nice Pass Name
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llvm-svn: 5058
2002-12-15 21:13:12 +00:00
2979a85984
Add a big assert making sure 2 address instructions are formed right
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llvm-svn: 5057
2002-12-15 21:02:20 +00:00
02e835bf9a
Fix a problem that occurs when PHI nodes have multiple entries for the same predecessor
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llvm-svn: 5055
2002-12-15 20:48:03 +00:00
dfa238f665
Grab bag of minor cleanups. Export some statistics about the number of
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spills and reloads emitted
llvm-svn: 5054
2002-12-15 20:36:09 +00:00
f895418b47
Implement printing of MBB arguments
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llvm-svn: 5053
2002-12-15 20:35:25 +00:00
e2533336f5
Simplify interfaces used by regalloc to insert code
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llvm-svn: 5052
2002-12-15 20:06:35 +00:00
c1c7cc290f
* Simplify code a bit by breaking the PHI node handling stuff out into a seperate
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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
f2acd842b4
* Remove some unneccesary instance variables
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* Make allocateStackSpaceFor only allocate the right amount of space
llvm-svn: 5048
2002-12-15 19:07:34 +00:00
b772cd05c5
pull inverse reg class mapping into a class that is sharable and out of the
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target register description classes.
llvm-svn: 5045
2002-12-15 18:38:59 +00:00
cf1955cb16
Prune #includes
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llvm-svn: 5044
2002-12-15 18:19:24 +00:00
1af3af463a
Remove extraneous #includes, perform FIXME
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llvm-svn: 5043
2002-12-15 18:15:24 +00:00
477af9d0fa
Fix borkness with not using MachineBasicBlocks in PHI nodes
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llvm-svn: 5035
2002-12-15 08:02:51 +00:00
a1aa29b125
Fixed a bug where moves due to phis were being neglected.
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llvm-svn: 5019
2002-12-13 12:33:31 +00:00
86ca8840a1
Need to insert all moves due to PHI nodes before *ALL* jumps in a predecessor
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basic block, as there could be multiple.
llvm-svn: 5016
2002-12-13 11:55:59 +00:00
35a358d981
This should be more correct: invalidates physical registers that are used in
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an instruction to avoid using them to allocate to other virtual registers.
llvm-svn: 5013
2002-12-13 11:33:22 +00:00
89ff3fbcd6
Fixed bug with running out of registers. Also, reinstated namespace which
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disappeared during the last checkin.
llvm-svn: 5007
2002-12-13 10:42:31 +00:00
a739167305
This should handle register allocating PHI nodes.
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llvm-svn: 5002
2002-12-13 09:54:36 +00:00
4ef74c8079
Start allocating stack space at [ebp-4] to not overwrite the return address.
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Also make all loads & stores 4-byte aligned for performance. ;)
llvm-svn: 4982
2002-12-13 04:34:02 +00:00
260dbc79fc
Take advantage of our knowledge of 2-address X86 instructions and
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register-allocated them appropriately.
llvm-svn: 4976
2002-12-12 23:20:31 +00:00
160a3da184
Added code generation for function prologues and epilogues.
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llvm-svn: 4930
2002-12-04 23:58:08 +00:00
dbb7b65bf3
Fun arithmetic with iterators aimed at fixing a bug: inserting instructions
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after the *current* instruction while keeping the iterator in the same
'logical' place.
llvm-svn: 4923
2002-12-04 19:24:45 +00:00
57f055f2f2
Print out direct global references
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llvm-svn: 4906
2002-12-04 06:44:41 +00:00
Chris Lattner