Evan Cheng
0ab209fa54
Remove clobbersPred.
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llvm-svn: 38500
2007-07-10 18:07:08 +00:00
Evan Cheng
776d4d6e11
Do away with ImmutablePredicateOperand.
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llvm-svn: 37959
2007-07-06 23:21:02 +00:00
Evan Cheng
0adaea7381
Add OptionalDefOperand to stand for optionally defined result.
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llvm-svn: 37930
2007-07-06 01:00:16 +00:00
Evan Cheng
8b0cbaff08
- Added zero_reg def to stand for register 0.
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- Added two variants of PredicateOperand: ImmutablePredicateOperand, whose predicate does not change after isel; PredicateDefOperand, which represent a predicate defintion operand.
llvm-svn: 37892
2007-07-05 07:09:09 +00:00
Dan Gohman
9cbc3fb1ab
Revert the earlier change that removed the M_REMATERIALIZABLE machine
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instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).
llvm-svn: 37728
2007-06-26 00:48:07 +00:00
Dan Gohman
b60d8a92c9
Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad
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with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.
llvm-svn: 37644
2007-06-19 01:48:05 +00:00
Evan Cheng
12b3002673
Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit.
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llvm-svn: 37643
2007-06-19 01:26:51 +00:00
Christopher Lamb
68017d151b
Add support to tablegen for specifying subregister classes on a per register class basis.
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llvm-svn: 37572
2007-06-13 22:20:15 +00:00
Evan Cheng
055d2fc508
Added clobbersPred.
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llvm-svn: 37466
2007-06-06 10:15:28 +00:00
Evan Cheng
0aced52f41
Added isPredicable bit to class Instruction.
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llvm-svn: 37117
2007-05-16 20:47:01 +00:00
Evan Cheng
4dd52e052f
PredicateOperand can be used as a normal operand for isel.
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llvm-svn: 36947
2007-05-08 21:06:08 +00:00
Bill Wendling
dc82c5a195
Add an "implies" field to features. This indicates that, if the current
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feature is set, then the features in the implied list should be set also.
The opposite is also enforced: if a feature in the implied list isn't set,
then the feature that owns that implies list shouldn't be set either.
llvm-svn: 36756
2007-05-04 20:38:40 +00:00
Chris Lattner
0b2b0185a0
expose HonorSignDependentRoundingFPMathOption to .td files
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llvm-svn: 36658
2007-05-03 00:27:11 +00:00
Nate Begeman
767ee95d29
llvm bug #1350 , parts 1, 2, and 3.
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llvm-svn: 36618
2007-05-01 05:57:02 +00:00
Evan Cheng
842e2c48a0
Add sub-registers sets.
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llvm-svn: 36278
2007-04-20 21:13:46 +00:00
Evan Cheng
498f19548c
Added isReMaterializable.
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llvm-svn: 35160
2007-03-19 06:22:07 +00:00
Chris Lattner
90c768b913
Add calling convention info
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llvm-svn: 34661
2007-02-27 06:59:52 +00:00
Dan Gohman
e24135a647
Fix typos in comments.
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llvm-svn: 34456
2007-02-20 20:52:03 +00:00
Jim Laskey
23ed7d2625
Make LABEL a builtin opcode.
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llvm-svn: 33537
2007-01-26 14:34:52 +00:00
Evan Cheng
0241c4a0b5
Comment.
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llvm-svn: 33114
2007-01-12 07:25:16 +00:00
Chris Lattner
1158705ea7
add a new field needed by the code emitter generator.
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llvm-svn: 31768
2006-11-15 22:55:04 +00:00
Chris Lattner
4296d2e0fa
initial steps to getting the predicate on PPC::BLR right.
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llvm-svn: 31437
2006-11-03 23:52:18 +00:00
Chris Lattner
f9394871ff
remove dead var
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llvm-svn: 31436
2006-11-03 23:50:15 +00:00
Evan Cheng
f49cb35d90
Add constraints to Instruction class.
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llvm-svn: 31332
2006-11-01 00:26:27 +00:00
Chris Lattner
b25677f5ca
Move the Imp tblgen class from the X86 backend to common code.
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llvm-svn: 30907
2006-10-12 17:49:27 +00:00
Evan Cheng
abd650f034
Add code size to target instruction use it as the 3rd isel sorting tie-breaker.
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llvm-svn: 29193
2006-07-19 00:24:41 +00:00
Evan Cheng
4bbd1c455f
Added a Flags field to TargetOperandInfo. Currently the only flag is
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M_LOOK_UP_PTR_REG_CLASS which allows the register class of the operand to be
resolved via a callback at runtime.
llvm-svn: 28387
2006-05-18 20:44:26 +00:00
Evan Cheng
89187d589f
Remove CalleeSavedRegisters from class Target.
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llvm-svn: 28377
2006-05-18 00:09:53 +00:00
Evan Cheng
ea24815aa3
Remove PointerType from class Target
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llvm-svn: 28368
2006-05-17 21:20:27 +00:00
Vladimir Prus
15fdb12773
Replace "../whatever.td" with "whatever.td", so that out-of-tree backends
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can just add lib/Target to TableGen includes.
llvm-svn: 28318
2006-05-16 06:39:36 +00:00
Chris Lattner
676c3dfd68
Improve comment, patch provided by Vladimir Prus!
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llvm-svn: 28307
2006-05-15 18:35:02 +00:00
Chris Lattner
3fe38bf77b
Update comment.
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llvm-svn: 28283
2006-05-14 02:05:19 +00:00
Chris Lattner
8456272509
Put PHI/INLINEASM into the correct namespace.
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llvm-svn: 28037
2006-05-01 17:00:49 +00:00
Evan Cheng
5e80563052
Renamed AddedCost to AddedComplexity.
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llvm-svn: 27843
2006-04-19 20:38:28 +00:00
Evan Cheng
318120f8ad
Allow "let AddedCost = n in" to increase pattern complexity.
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llvm-svn: 27834
2006-04-19 18:07:24 +00:00
Jim Laskey
d577317f38
Add support for dwarf register numbering.
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llvm-svn: 27080
2006-03-24 21:13:21 +00:00
Chris Lattner
b979b51e39
Shuffle some includes around
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llvm-svn: 27073
2006-03-24 18:52:35 +00:00
Chris Lattner
af9919716a
Split the valuetypes out of Target.td into ValueTypes.td
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llvm-svn: 26490
2006-03-03 01:55:26 +00:00
Evan Cheng
44412bbde0
New type v2f32.
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llvm-svn: 26435
2006-03-01 01:06:22 +00:00
Evan Cheng
6a9422ce1c
Added x86 integer vector types: 64-bit packed byte integer (v16i8), 64-bit
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packed word integer (v8i16), and 64-bit packed doubleword integer (v2i32).
llvm-svn: 26294
2006-02-20 22:34:53 +00:00
Evan Cheng
77885c204d
Subtarget feature can now set any variable to any value
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llvm-svn: 25678
2006-01-27 08:09:42 +00:00
Chris Lattner
20d4194a0d
PHI and INLINEASM are now built-in instructions provided by Target.td
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llvm-svn: 25674
2006-01-27 01:46:15 +00:00
Evan Cheng
e720cfd690
New DAG node properties SNDPInFlag, SNDPOutFlag, and SNDPOptInFlag to replace
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hasInFlag, hasOutFlag.
llvm-svn: 25155
2006-01-09 18:28:21 +00:00
Evan Cheng
231b11ba87
Added field noResults to Instruction.
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Currently tblgen cannot tell which operands in the operand list are results so
it assumes the first one is a result. This is bad. Ideally we would fix this
by separating results from inputs, e.g. (res R32:$dst),
(ops R32:$src1, R32:$src2). But that's a more distruptive change. Adding
'let noResults = 1' is the workaround to tell tblgen that the instruction does
not produces a result. It works for now since tblgen does not support
instructions which produce multiple results.
llvm-svn: 25017
2005-12-26 09:11:45 +00:00
Evan Cheng
d87688fe72
* Removed the use of FLAG. Now use hasFlagIn and hasFlagOut instead.
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* Added a pseudo instruction (for each target) that represent "return void".
This is a workaround for lack of optional flag operand (return void is not
lowered so it does not have a flag operand.)
llvm-svn: 24997
2005-12-23 22:14:32 +00:00
Evan Cheng
297c23d2e7
Added support to specify predicates.
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llvm-svn: 24715
2005-12-14 22:02:59 +00:00
Evan Cheng
7580d9229f
* Added instruction property hasCtrlDep for those which r/w control-flow
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chains.
* Added DAG node property SDNPHasChain for nodes which r/w control-flow
chains.
* Renamed SDTVT to SDTOther.
* Added several new SDTypeProfiles for BR, BRCOND, RET, and WRITEPORT.
* Added SDNode definitions for BR, BRCOND, RET, and WRITEPORT.
llvm-svn: 24586
2005-12-04 08:13:17 +00:00
Nate Begeman
811a41a87c
Support multiple ValueTypes per RegisterClass, needed for upcoming vector
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work. This change has no effect on generated code.
llvm-svn: 24563
2005-12-01 04:51:06 +00:00
Nate Begeman
a1c2df2471
Add the majority of the vector machien value types we expect to support,
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and make a few changes to the legalization machinery to support more than
16 types.
llvm-svn: 24511
2005-11-29 05:45:29 +00:00
Chris Lattner
c90cd9e5e8
refix typo
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llvm-svn: 24505
2005-11-29 00:42:30 +00:00