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187 Commits

Author SHA1 Message Date
Evan Cheng
8f126e59f5 Added TargetInstrDescriptor::numDefs - num of results. 
llvm-svn: 40709
 2007-08-02 00:20:17 +00:00
Christopher Lamb
9a0d88efde Add target independent MachineInstr's to represent subreg insert/extract in MBB's. PR1350 
llvm-svn: 40518
 2007-07-26 07:48:21 +00:00
Evan Cheng
6125079452 Add OptionalDefOperand. Remove clobbersPred. Also add DefinesPredicate to be used by if-converter. 
llvm-svn: 38499
 2007-07-10 18:06:29 +00:00
Dan Gohman
3f7558673e Fix a typo in a comment. 
llvm-svn: 38456
 2007-07-09 15:15:24 +00:00
Dan Gohman
9cbc3fb1ab 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).

llvm-svn: 37728
 2007-06-26 00:48:07 +00:00
Dan Gohman
b60d8a92c9 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.

llvm-svn: 37644
 2007-06-19 01:48:05 +00:00
Evan Cheng
4358a7f1e9 Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
llvm-svn: 37642
 2007-06-19 01:21:41 +00:00
Evan Cheng
34a6cb0b2e Added CanBeDuplicated(). It returns true if an instruction can be safely duplicated (e.g. during ifcvt). 
llvm-svn: 37605
 2007-06-15 21:13:54 +00:00
Dale Johannesen
62f49dd524 Do not treat FP_REG_KILL as terminator in branch analysis (X86). 
llvm-svn: 37578
 2007-06-14 22:03:45 +00:00
Dan Gohman
35f2b4d716 Add a target hook to allow loads from constant pools to be rematerialized, and an 
implementation for x86.

llvm-svn: 37576
 2007-06-14 20:50:44 +00:00
Evan Cheng
1a6c0341fd Add a utility routine to check for unpredicated terminator instruction. 
llvm-svn: 37528
 2007-06-08 21:59:56 +00:00
Evan Cheng
4de6599e83 Add a machine instruction flag indicating the instruction can clobber condition code / register(s) used to predicate instructions. 
llvm-svn: 37464
 2007-06-06 10:13:55 +00:00
Evan Cheng
d8b25a2091 Add missing const qualifiers. 
llvm-svn: 37341
 2007-05-29 18:35:22 +00:00
Evan Cheng
f2d1d0124e Add a couple of target hooks for predication. 
llvm-svn: 37306
 2007-05-23 07:19:12 +00:00
Evan Cheng
7d3f771e9c Consistency. 
llvm-svn: 37274
 2007-05-22 01:21:58 +00:00
Evan Cheng
234aab208a RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted. 
llvm-svn: 37192
 2007-05-18 00:05:48 +00:00
Evan Cheng
dc9e574073 Remove. Not needed. 
llvm-svn: 37139
 2007-05-17 00:11:35 +00:00
Evan Cheng
3163b77d5e Add target hook to specify block size limit for if-conversion. 
llvm-svn: 37134
 2007-05-16 23:45:53 +00:00
Evan Cheng
973f4a19cb PredicateInstruction returns true if the operation was successful. 
llvm-svn: 37124
 2007-05-16 21:53:07 +00:00
Evan Cheng
3b10540b5e Rename M_PREDICATED to M_PREDICABLE; Move TargetInstrInfo::isPredicatable() to MachineInstr::isPredicable(). 
llvm-svn: 37115
 2007-05-16 20:43:42 +00:00
Evan Cheng
770584a8cd Fix comments. 
llvm-svn: 37096
 2007-05-16 05:09:34 +00:00
Evan Cheng
7fe6d7cb7e Add TargetInstrInfo predication hooks. 
llvm-svn: 37091
 2007-05-16 01:58:56 +00:00
Evan Cheng
71c4d42bd7 All operands that made up of the predicate operands are maked M_PREDICATE_OPERAND. 
llvm-svn: 37062
 2007-05-15 01:21:27 +00:00
Evan Cheng
2081cf96ed 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.

llvm-svn: 35158
 2007-03-19 06:19:16 +00:00
Evan Cheng
0408dc0d37 These forward declarations are not needed. 
llvm-svn: 35120
 2007-03-16 08:41:06 +00:00
Jeff Cohen
b19ec59b5c Fix for VS 2005 problem supplied by Morten Ofstad. 
llvm-svn: 35098
 2007-03-14 15:25:21 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Evan Cheng
e0aa279fc8 Silly assertion. Forgot variable_ops instructions can have arbitrary number of 
operands.

llvm-svn: 32592
 2006-12-15 06:37:08 +00:00
Evan Cheng
88a55bdd64 Move findTiedToSrcOperand to TargetInstrDescriptor. 
llvm-svn: 32366
 2006-12-08 18:45:48 +00:00
Evan Cheng
dfec38a575 Use MI's TargetInstrDescriptor. 
llvm-svn: 32352
 2006-12-08 07:57:56 +00:00
Evan Cheng
d042dac8ab - Add getOperandConstraint() to TargetInstrDescriptor. 
- convertToThreeAddress() change to allow single two-address MI to be converted
  into one or more 3-address MIs.

llvm-svn: 32094
 2006-12-01 21:46:55 +00:00
Evan Cheng
6f5962e79f Add opcode to TargetInstrDescriptor. 
llvm-svn: 31802
 2006-11-17 01:36:01 +00:00
Evan Cheng
8743c67826 Remove M_2_ADDR_FLAG. 
llvm-svn: 31583
 2006-11-09 02:22:54 +00:00
Chris Lattner
b6be2b873f Add a new operand flag to mark which operand is the first predicate operand 
of an M_PREDICATED instruction.

llvm-svn: 31482
 2006-11-06 23:53:08 +00:00
Chris Lattner
d7138e5f2d add a flag so that predicated instructions can be recognized by branch 
folding

llvm-svn: 31479
 2006-11-06 21:44:17 +00:00
Evan Cheng
1da5ee8485 Rename 
llvm-svn: 31364
 2006-11-01 23:18:32 +00:00
Evan Cheng
b1ac9f6c12 Added getTiedToSrcOperand() to check for two-address'ness. 
llvm-svn: 31360
 2006-11-01 23:00:31 +00:00
Evan Cheng
c566892bd5 Add operand constraints to TargetInstrInfo. 
llvm-svn: 31333
 2006-11-01 00:27:05 +00:00
Chris Lattner
dcfee77788 add another target hook for branch folding. 
llvm-svn: 31262
 2006-10-28 17:29:57 +00:00
Chris Lattner
bc4f0e8b56 update comment 
llvm-svn: 31165
 2006-10-24 17:41:22 +00:00
Rafael Espindola
b35e4b16ae fix assert comment 
llvm-svn: 31154
 2006-10-24 14:47:28 +00:00
Chris Lattner
7353b07275 expose DWARF_LABEL opcode# so the branch folder can update debug info properly. 
llvm-svn: 31024
 2006-10-17 22:41:45 +00:00
Chris Lattner
ea84388ac0 update comment 
llvm-svn: 31023
 2006-10-17 22:12:15 +00:00
Chris Lattner
b441d8e8ce it is easier to implement these when they are virtual 
llvm-svn: 30944
 2006-10-13 21:02:27 +00:00
Chris Lattner
520bf168f5 allow branch reversal to fail 
llvm-svn: 30943
 2006-10-13 20:59:31 +00:00
Chris Lattner
f8eaaded24 replace the existing branch inspection/modification APIs with something more 
useful and general.

llvm-svn: 30940
 2006-10-13 20:44:01 +00:00
Jim Laskey
a67adda697 Use an enumeration to eliminate data relocations. 
llvm-svn: 29249
 2006-07-21 20:57:35 +00:00
Evan Cheng
6909286861 Clean up 
llvm-svn: 28851
 2006-06-17 01:42:20 +00:00
Evan Cheng
276a39d956 Avoid undesirable behavior when assert is not enabled. 
llvm-svn: 28793
 2006-06-15 08:10:27 +00:00
Evan Cheng
07d8ccec50 Instructions with variable operands (variable_ops) can have a number required 
operands. e.g.
def CALL32r : I<0xFF, MRM2r, (ops GR32:$dst, variable_ops),
                "call {*}$dst", [(X86call GR32:$dst)]>;
TableGen should emit operand informations for the "required" operands.

Added a target instruction info flag M_VARIABLE_OPS to indicate the target
instruction may have more operands in addition to the minimum required
operands.

llvm-svn: 28791
 2006-06-15 07:22:16 +00:00
Evan Cheng
00c1318055 lib/Target/Target.td 
llvm-svn: 28386
 2006-05-18 20:42:07 +00:00
Evan Cheng
0b8e4bca80 Add capability to scheduler to commute nodes for profit. 
If a two-address code whose first operand has uses below, it should be commuted
when possible.

llvm-svn: 28230
 2006-05-12 01:58:24 +00:00
Chris Lattner
6a2ec2cd3b Remove a bunch of dead stuff, shrinkifying TargetInstrDescriptor significantly. 
llvm-svn: 27897
 2006-04-20 18:32:02 +00:00
Chris Lattner
5fd145d9c4 add a hook to insert a noop 
llvm-svn: 26560
 2006-03-05 23:48:51 +00:00
Chris Lattner
6684ba101f Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo, 
a far more logical place.  Other methods should also be moved if anyone
is interested. :)

llvm-svn: 25912
 2006-02-02 20:11:55 +00:00
Chris Lattner
b234392bc5 Add a common INLINEASM opcode 
llvm-svn: 25667
 2006-01-26 23:27:02 +00:00
Jim Laskey
4cb1e29b27 Allow itineraries to be passed through the Target Machine. 
llvm-svn: 24139
 2005-11-01 20:06:59 +00:00
Chris Lattner
49eef12127 Move a bunch of non-deprecated methods above the "deprecated line" 
llvm-svn: 23216
 2005-09-02 18:16:20 +00:00
Chris Lattner
fd72abe85b Add a new instruction flag 
llvm-svn: 23093
 2005-08-26 20:31:24 +00:00
Chris Lattner
6fcfaee2fc Add a new field to TargetInstrDescriptor for tracking information about 
operands.

llvm-svn: 22908
 2005-08-19 16:56:26 +00:00
Misha Brukman
5e38b1e17e Convert tabs to spaces 
llvm-svn: 21438
 2005-04-22 03:46:24 +00:00
Misha Brukman
58c97e67f3 Remove trailing whitespace 
llvm-svn: 21412
 2005-04-21 20:59:05 +00:00
Chris Lattner
2a03fa3a5c Add a new method, described in the comment. 
llvm-svn: 19683
 2005-01-19 06:53:02 +00:00
Chris Lattner
a008165daa Add some bits that can be set on instructions. Renumber existing bits so 
they are dense.  Add a virtual method that targets can choose to implement.

llvm-svn: 19242
 2005-01-02 02:28:31 +00:00
Chris Lattner
dd0094e4ed Convert 'struct' to 'class' in various places to adhere to the coding standards 
and work better with VC++.  Patch contributed by Morten Ofstad!

llvm-svn: 17281
 2004-10-27 16:14:51 +00:00
Chris Lattner
89a80a46f1 Be consistent with our naming 
llvm-svn: 16552
 2004-09-28 18:37:00 +00:00
Chris Lattner
c92b280e0d Capture information about whether the target instructions have delay slots 
llvm-svn: 16550
 2004-09-28 18:33:50 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Brian Gaeke
9e089c115d M_DUMMY_PHI_FLAG is no longer used to distinguish V9::PHI. Get rid of it and 
its TargetInstrInfo accessor.

llvm-svn: 15907
 2004-08-18 20:04:28 +00:00
Brian Gaeke
af14dcae5d M_PSEUDO_FLAG is no longer used. Get rid of it and its accessor. 
llvm-svn: 15902
 2004-08-18 17:44:17 +00:00
Brian Gaeke
69f47e236f getResultPos() is dead. 
llvm-svn: 15484
 2004-08-04 08:06:30 +00:00
Chris Lattner
e8b9d3f67c Fix warning 
llvm-svn: 15406
 2004-08-01 18:17:36 +00:00
Alkis Evlogimenos
e28642a6a5 Change signature to take two basic blocks: the target and the one 
where the goto will be appended.

llvm-svn: 15361
 2004-07-31 09:37:52 +00:00
Alkis Evlogimenos
b338ca7306 Doxygenify some comments. 
llvm-svn: 15360
 2004-07-31 08:57:27 +00:00
Alkis Evlogimenos
6308a8a8e0 Remove const from iterators passed by value. 
llvm-svn: 15359
 2004-07-31 08:55:23 +00:00
Alkis Evlogimenos
2ca8d29454 Add declarations for insertGoto and reverseBranchCondition. 
llvm-svn: 15358
 2004-07-31 08:52:30 +00:00
Chris Lattner
d46a44390f Add new M_BARRIER_FLAG flag, and isBarrier() method to TargetInstrInfo 
opCode -> Opcode

llvm-svn: 15353
 2004-07-31 02:06:48 +00:00
Brian Gaeke
99f18cc97f TargetInstrInfo::hasOperandInterlock() is always true, because it is 
never overridden by any target.

llvm-svn: 15308
 2004-07-28 19:24:48 +00:00
Brian Gaeke
1ec15e0428 ConstantTypeMustBeLoaded has been incorporated into SparcV9PreSelection, its 
only user.

llvm-svn: 15294
 2004-07-27 21:43:38 +00:00
Brian Gaeke
a71776e676 As it happens, none of these TargetInstrInfo methods which are only 
used in the SparcV9 backend really have anything to do with
TargetInstrInfo, so we're converting them into regular old global
functions and moving their declarations to SparcV9InstrSelectionSupport.h.
(They're mostly used as helper functions for SparcV9InstrSelection.)

llvm-svn: 15277
 2004-07-27 17:43:22 +00:00
Chris Lattner
b5f0e162c7 Eliminate the distinction between "real" and "unreal" instructions 
llvm-svn: 11986
 2004-02-29 06:31:16 +00:00
Chris Lattner
e4db708a7c Scrap a huge layer of cruft out of this interface. 
llvm-svn: 11980
 2004-02-29 05:57:21 +00:00
Alkis Evlogimenos
3ecdcd18c5 Add parent pointer to MachineInstr that points to owning 
MachineBasicBlock. Also change opcode to a short and numImplicitRefs
to an unsigned char so that overall MachineInstr's size stays the
same.

llvm-svn: 11357
 2004-02-12 18:49:07 +00:00
Brian Gaeke
7246d4efd0 Fix typos in comments. 
llvm-svn: 11333
 2004-02-11 19:47:43 +00:00
Alkis Evlogimenos
24b3159dfc Add TargetInstrInfo::isMoveInstr() to support coalescing in register 
allocation.

llvm-svn: 10633
 2003-12-28 17:35:08 +00:00
Brian Gaeke
d25f86d683 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
John Criswell
16c6cda9d5 Added LLVM copyright header (for lack of a better term). 
llvm-svn: 9304
 2003-10-20 20:19:47 +00:00
Chris Lattner
4c675245b9 The NOOP instruction is no longer needed. Instead, use the 
TargetInstrInfo::isNOPinstr method

llvm-svn: 7530
 2003-08-03 18:52:15 +00:00
Vikram S. Adve
b73a1c0085 Unify all constant evaluations that depend on register size 
in TargetInstrInfo::ConvertConstantToIntType.

llvm-svn: 7398
 2003-07-29 20:30:20 +00:00
Chris Lattner
be4a5081d1 #include <cassert> as necessary... 
llvm-svn: 7315
 2003-07-25 17:58:41 +00:00
John Criswell
258dfc0319 Merged in autoconf branch. This provides configuration via the autoconf 
system.

llvm-svn: 7014
 2003-06-30 21:59:07 +00:00
Brian Gaeke
6f2c46cd52 Nice tasty llc fixes. These should fix LLC for x86 for everything in 
SingleSource except oopack and Oscar.  (Sorry, Oscar.)

include/llvm/Target/TargetInstrInfo.h: Remove virtual print method. Add
 accessors for ImplicitUses/Defs.
lib/Target/TargetInstrInfo.cpp: Remove virtual print method. If you
 really wanted this, just use MI->print(O, TM); instead...
lib/Target/X86:
FloatingPoint.cpp: ...like this.
X86InstrInfo.h: Remove virtual print method. Define the PrintImplUses
 target-specific flag bit.
X86InstrInfo.def: Add the PrintImplUses flag to all the instructions
 which implicitly use CL, because the assembler needs to see the CL in
 order to generate the right instruction.
Printer.cpp: Ditch fnIndex at Chris's request. Now we use CurrentFnName
  to name constants in the constant pool for each function instead. This
  avoids keeping state between runOnMachineFunction() invocations, which
  is a no-no. Having MangledGlobals be global is a bogon I'd like to get
  rid of too, but making it a static member of Printer causes link errors
  (why???).
 Make NumberForBB into a member of Printer instead of a global, too.
 Make printOp and printMemReference into methods of Printer.
 X86InstrInfo::print is now Printer::printMachineInstruction, because
  TargetInstrInfo::print is history. (Because of this, we have to qualify
  the names of some TargetInstrInfo methods we call.)
 Print out the ImplicitUses field of any instruction we print that has
  the PrintImplUses bit set.

llvm-svn: 6924
 2003-06-27 00:00:48 +00:00
John Criswell
4781723de6 Included assert.h so that the code compiles under newer versions of GCC. 
llvm-svn: 6682
 2003-06-11 14:01:36 +00:00
Misha Brukman
6ffaa5b188 Reword to remove reference to how things worked in the past. 
llvm-svn: 6323
 2003-05-24 01:08:43 +00:00
Misha Brukman
151f7484ab NOP instructions are pseudo-instructions. We should not have them explicitly in 
our representation, since they are usually special cases of already-existing
instructions.

This abstracts away methods that let a pass create and verify a NOP instruction,
without relying on a `NOP' enum to be in existence in the target's instruction
info descriptor.

llvm-svn: 6319
 2003-05-24 00:08:39 +00:00
Chris Lattner
b27d60ccf1 Rename MachineInstrInfo -> TargetInstrInfo 
llvm-svn: 5272
 2003-01-14 22:00:31 +00:00
Chris Lattner
5fd0d8f44b * Start renaming MachineInstrInfo -> TargetInstrInfo 
* Add new M_TERMINATOR_FLAG

llvm-svn: 5213
 2003-01-13 00:21:19 +00:00
Chris Lattner
90d1ea29ab Sparc specific methods default to abort rather than being pure virtual 
llvm-svn: 5169
 2002-12-28 20:12:54 +00:00
Chris Lattner
b44ebe2588 Add comment 
llvm-svn: 5141
 2002-12-25 05:01:46 +00:00
Chris Lattner
07cc730ddd Export well known instruction opcodes usable by target independant passes 
llvm-svn: 5063
 2002-12-15 22:16:08 +00:00