Evan Cheng
ffddf97e5d
Added getNumDefs().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41901 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-13 00:16:29 +00:00
Evan Cheng
b5910820ce
Added TargetInstrDescriptor::numDefs - num of results.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40709 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-02 00:20:17 +00:00
Christopher Lamb
08d52071ba
Add target independent MachineInstr's to represent subreg insert/extract in MBB's. PR1350
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40518 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-26 07:48:21 +00:00
Evan Cheng
ed80ef6089
Add OptionalDefOperand. Remove clobbersPred. Also add DefinesPredicate to be used by if-converter.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38499 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-10 18:06:29 +00:00
Dan Gohman
2c8c3e2e31
Fix a typo in a comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38456 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-09 15:15:24 +00:00
Dan Gohman
d45eddd214
Revert the earlier change that removed the M_REMATERIALIZABLE machine
...
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37728 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-26 00:48:07 +00:00
Dan Gohman
82a87a0172
Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad
...
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37644 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19 01:48:05 +00:00
Evan Cheng
4e6b1e1d99
Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37642 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19 01:21:41 +00:00
Evan Cheng
61a2598ebe
Added CanBeDuplicated(). It returns true if an instruction can be safely duplicated (e.g. during ifcvt).
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37605 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-15 21:13:54 +00:00
Dale Johannesen
318093b6f8
Do not treat FP_REG_KILL as terminator in branch analysis (X86).
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37578 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-14 22:03:45 +00:00
Dan Gohman
c101e95cb6
Add a target hook to allow loads from constant pools to be rematerialized, and an
...
implementation for x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37576 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-14 20:50:44 +00:00
Evan Cheng
bfd2ec4a8e
Add a utility routine to check for unpredicated terminator instruction.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37528 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-08 21:59:56 +00:00
Evan Cheng
f94ab6a662
Add a machine instruction flag indicating the instruction can clobber condition code / register(s) used to predicate instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37464 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-06 10:13:55 +00:00
Evan Cheng
f277ee4be7
Add missing const qualifiers.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37341 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-29 18:35:22 +00:00
Evan Cheng
4f85cd7704
Add a couple of target hooks for predication.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37306 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-23 07:19:12 +00:00
Evan Cheng
d46a8ea5d5
Consistency.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37274 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-22 01:21:58 +00:00
Evan Cheng
b5cdaa257e
RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37192 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-18 00:05:48 +00:00
Evan Cheng
d9e9efb253
Remove. Not needed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37139 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 00:11:35 +00:00
Evan Cheng
d60483ef99
Add target hook to specify block size limit for if-conversion.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37134 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-16 23:45:53 +00:00
Evan Cheng
02c602b333
PredicateInstruction returns true if the operation was successful.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37124 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-16 21:53:07 +00:00
Evan Cheng
1bccb49082
Rename M_PREDICATED to M_PREDICABLE; Move TargetInstrInfo::isPredicatable() to MachineInstr::isPredicable().
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37115 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-16 20:43:42 +00:00
Evan Cheng
6c1d2b90e3
Fix comments.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37096 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-16 05:09:34 +00:00
Evan Cheng
0402e170e8
Add TargetInstrInfo predication hooks.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37091 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-16 01:58:56 +00:00
Evan Cheng
5de723c118
All operands that made up of the predicate operands are maked M_PREDICATE_OPERAND.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37062 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-15 01:21:27 +00:00
Evan Cheng
5d5c93f659
Add a TargetInstrDescriptor flag to mark an instruction as "re-materializable".
...
It means the instruction can be easily re-materialized at any point. e.g.
constant generation, load from constantpool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35158 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-19 06:19:16 +00:00
Evan Cheng
2864eee7a3
These forward declarations are not needed.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35120 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-16 08:41:06 +00:00
Jeff Cohen
fb062ece96
Fix for VS 2005 problem supplied by Morten Ofstad.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35098 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-14 15:25:21 +00:00
Jim Laskey
1ee2925742
Make LABEL a builtin opcode.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33537 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-26 14:34:52 +00:00
Evan Cheng
f2f6a1baf7
Silly assertion. Forgot variable_ops instructions can have arbitrary number of
...
operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32592 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-15 06:37:08 +00:00
Evan Cheng
cc22a7a2ad
Move findTiedToSrcOperand to TargetInstrDescriptor.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32366 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-08 18:45:48 +00:00
Evan Cheng
3cc3816cd4
Use MI's TargetInstrDescriptor.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32352 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-08 07:57:56 +00:00
Evan Cheng
6c14147d93
- Add getOperandConstraint() to TargetInstrDescriptor.
...
- convertToThreeAddress() change to allow single two-address MI to be converted
into one or more 3-address MIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32094 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-01 21:46:55 +00:00
Evan Cheng
33247d537d
Add opcode to TargetInstrDescriptor.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31802 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-17 01:36:01 +00:00
Evan Cheng
a1fd6504aa
Remove M_2_ADDR_FLAG.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31583 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-09 02:22:54 +00:00
Chris Lattner
f6e8e6bace
Add a new operand flag to mark which operand is the first predicate operand
...
of an M_PREDICATED instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31482 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-06 23:53:08 +00:00
Chris Lattner
1b1b737d7d
add a flag so that predicated instructions can be recognized by branch
...
folding
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31479 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-06 21:44:17 +00:00
Evan Cheng
e6ae14e1f4
Rename
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31364 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 23:18:32 +00:00
Evan Cheng
981b5bd708
Added getTiedToSrcOperand() to check for two-address'ness.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31360 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 23:00:31 +00:00
Evan Cheng
e2ba897588
Add operand constraints to TargetInstrInfo.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31333 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-01 00:27:05 +00:00
Chris Lattner
c24ff8ed12
add another target hook for branch folding.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31262 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-28 17:29:57 +00:00
Chris Lattner
33644ba8d2
update comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31165 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 17:41:22 +00:00
Rafael Espindola
24321d7e23
fix assert comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31154 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-24 14:47:28 +00:00
Chris Lattner
ae1dc40327
expose DWARF_LABEL opcode# so the branch folder can update debug info properly.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31024 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-17 22:41:45 +00:00
Chris Lattner
72dc585268
update comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31023 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-17 22:12:15 +00:00
Chris Lattner
d51c87f22f
it is easier to implement these when they are virtual
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30944 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13 21:02:27 +00:00
Chris Lattner
5f1e4dbdf7
allow branch reversal to fail
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30943 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13 20:59:31 +00:00
Chris Lattner
b2cd261279
replace the existing branch inspection/modification APIs with something more
...
useful and general.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30940 91177308-0d34-0410-b5e6-96231b3b80d8
2006-10-13 20:44:01 +00:00
Jim Laskey
60f09928a0
Use an enumeration to eliminate data relocations.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29249 91177308-0d34-0410-b5e6-96231b3b80d8
2006-07-21 20:57:35 +00:00
Evan Cheng
61496683b3
Clean up
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28851 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-17 01:42:20 +00:00
Evan Cheng
f4432fac14
Avoid undesirable behavior when assert is not enabled.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28793 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-15 08:10:27 +00:00