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362 Commits

Author SHA1 Message Date
Chris Lattner
2a38688494 inline the global 'getInstrOperandRegClass' function into its callers 
now that TargetOperandInfo does the heavy lifting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77508 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 21:36:49 +00:00
Eli Friedman
23ed52752b Remove unused member functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-24 07:43:59 +00:00
Evan Cheng
fc6ad402fb Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it. 
This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76703 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-22 00:25:27 +00:00
Evan Cheng
378445303b Let callers decide the sub-register index on the def operand of rematerialized instructions. 
Avoid remat'ing instructions whose def have sub-register indices for now. It's just really really hard to get all the cases right.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75900 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-16 09:20:10 +00:00
Torok Edwin
c23197a26f llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-14 16:55:14 +00:00
Torok Edwin
c25e7581b9 assert(0) -> LLVM_UNREACHABLE. 
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-11 20:10:48 +00:00
Evan Cheng
261ce1d5f8 Remove TargetInstrInfo::CommuteChangesDestination and added findCommutedOpIndices which returns the operand indices which are swapped (when applicable). This allows for some code clean up and future enhancements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75264 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-10 19:15:51 +00:00
Evan Cheng
d923fc621f Move getInstrOperandRegClass from the scheduler to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70950 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-05 00:30:09 +00:00
Evan Cheng
c781a243a3 In some rare cases, the register allocator can spill registers but end up not utilizing registers at all. The fundamental problem is linearscan's backtracking can end up freeing more than one allocated registers. However, reloads and restores might be folded into uses / defs and freed registers might not be used at all. 
VirtRegMap keeps track of allocations so it knows what's not used. As a horrible hack, the stack coloring can color spill slots with *free* registers. That is, it replace reload and spills with copies from and to the free register. It unfold instructions that load and store the spill slot and replace them with register using variants.

Not yet enabled. This is part 1. More coming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70787 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-03 18:32:42 +00:00
Dan Gohman
88c7af096b Rename COPY_TO_SUBCLASS to COPY_TO_REGCLASS, and generalize 
it accordingly. Thanks to Jakob Stoklund Olesen for pointing
out how this might be useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68986 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-13 21:06:25 +00:00
Dan Gohman
f8c7394781 Add a new TargetInstrInfo MachineInstr opcode, COPY_TO_SUBCLASS. 
This will be used to replace things like X86's MOV32to32_.

Enhance ScheduleDAGSDNodesEmit to be more flexible and robust
in the presense of subregister superclasses and subclasses. It
can now cope with the definition of a virtual register being in
a subclass of a use.

Re-introduce the code for recording register superreg classes and
subreg classes. This is needed because when subreg extracts and
inserts get coalesced away, the virtual registers are left in
the correct subclass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-13 15:38:05 +00:00
Dan Gohman
73099b1058 Add comments to INSERT_SUBREG, EXTRACT_SURBEG, SUBREG_TO_REG, 
and IMPLICIT_DEF.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68949 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-13 15:12:29 +00:00
Dale Johannesen
c1c9d7e6a9 Describe tail merging's use of InsertBranch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65062 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-19 19:40:21 +00:00
Evan Cheng
dc54d317e7 Turns out AnalyzeBranch can modify the mbb being analyzed. This is a nasty 
suprise to some callers, e.g. register coalescer. For now, add an parameter
that tells AnalyzeBranch whether it's safe to modify the mbb. A better
solution is out there, but I don't have time to deal with it right now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64124 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-09 07:14:22 +00:00
Evan Cheng
770bcc7b15 Move getPointerRegClass from TargetInstrInfo to TargetRegisterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63938 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-06 17:43:24 +00:00
Evan Cheng
4350eb86a7 Add TargetInstrInfo::isSafeToMoveRegisterClassDefs. It returns true if it's safe to move an instruction which defines a value in the register class. Replace pre-splitting specific IgnoreRegisterClassBarriers with this new hook. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63936 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-06 17:17:30 +00:00
Evan Cheng
04ee5a1d92 Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62600 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-20 19:12:24 +00:00
Dan Gohman
2b00aebda9 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-15 17:26:50 +00:00
Dan Gohman
c54baa2d43 Split foldMemoryOperand into public non-virtual and protected virtual 
parts, and add target-independent code to add/preserve
MachineMemOperands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60488 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-12-03 18:43:12 +00:00
Dan Gohman
cbad42cfd1 Add more const qualifiers. This fixes build breakage from r59540. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59542 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-18 19:49:32 +00:00
Evan Cheng
23066288fd For now, don't split live intervals around x87 stack register barriers. FpGET_ST0_80 must be right after a call instruction (and ADJCALLSTACKUP) so we need to find a way to prevent reload of x87 registers between them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58230 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-27 07:14:50 +00:00
Evan Cheng
95a3f0d99e Add storeRegTo{StackSlot|Addr} and loadRegFrom{StackSlot|Addr} descriptions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58164 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-25 23:08:22 +00:00
Dan Gohman
8c8b2a89f9 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57832 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-20 15:58:02 +00:00
Dan Gohman
8e8b8a223c Const-ify several TargetInstrInfo methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57622 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-16 01:49:15 +00:00
Evan Cheng
a6548d0f29 Clarify meaning of copyRegToReg's return value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57449 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-10-13 17:30:56 +00:00
Cedric Venet
c93457053c - small bug corrected: incorrect iterator type. 
- fix to please VS: add a return after an assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55380 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 19:49:04 +00:00
Owen Anderson
940f83e772 Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested 
was inserted or not.  This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55375 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-26 18:03:31 +00:00
Owen Anderson
44eb65cf58 Convert uses of std::vector in TargetInstrInfo to SmallVector. This change had to be propoagated down into all the targets and up into all clients of this API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54802 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-08-14 22:49:33 +00:00
Dan Gohman
61e804f22b Clarify the comments here, to make slightly more clear the 
difference in purpose of TargetInstrInfo and TargetInstrDesc,
which isn't immediately obvious from the name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53683 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-16 16:02:59 +00:00
Owen Anderson
f660c171c8 Make LiveVariables even more optional, by making it optional in the call to TargetInstrInfo::convertToThreeAddressInstruction 
Also, if LV isn't around, then TwoAddr doesn't need to be updating flags, since they won't have been set in the first place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 23:41:07 +00:00
Dan Gohman
4406604047 Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating 
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52943 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 00:05:16 +00:00
Evan Cheng
58dcb0e0cd Add option to commuteInstruction() which forces it to create a new (commuted) instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52308 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-16 07:33:11 +00:00
Bill Wendling
9f8fea3531 Constify the machine instruction passed into the 
"is{Trivially,Really}ReMaterializable" methods.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-12 20:54:26 +00:00
Nicolas Geoffray
52e724ad7e Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49809 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-16 20:10:13 +00:00
Evan Cheng
ca1267c02b Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-31 20:40:39 +00:00
Christopher Lamb
c929823525 Make insert_subreg a two-address instruction, vastly simplifying LowerSubregs pass. Add a new TII, subreg_to_reg, which is like insert_subreg except that it takes an immediate implicit value to insert into rather than a register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48412 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-16 03:12:01 +00:00
Evan Cheng
da47e6e0d0 Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48380 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-15 00:03:38 +00:00
Christopher Lamb
6634e26aa1 Get rid of a pseudo instruction and replace it with subreg based operation on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects. 
Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 05:47:01 +00:00
Evan Cheng
f20db15954 Added CommuteChangesDestination(). This returns true if commuting the specified 
machine instr will change its definition register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47166 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 18:21:33 +00:00
Evan Cheng
5fd79d0560 It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 21:20:40 +00:00
Evan Cheng
a844bdeab3 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc. 
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 04:07:54 +00:00
Chris Lattner
a22edc82ca Simplify the side effect stuff a bit more and make licm/sinking 
both work right according to the new flags.

This removes the TII::isReallySideEffectFree predicate, and adds
TII::isInvariantLoad. 

It removes NeverHasSideEffects+MayHaveSideEffects and adds
UnmodeledSideEffects as machine instr flags.  Now the clients
can decide everything they need.

I think isRematerializable can be implemented in terms of the
flags we have now, though I will let others tackle that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45843 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-10 23:08:24 +00:00
Chris Lattner
d3f99e2bbf split TargetInstrDesc out into its own header file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45696 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 07:33:08 +00:00
Chris Lattner
749c6f6b5e rename TargetInstrDescriptor -> TargetInstrDesc. 
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 07:27:27 +00:00
Chris Lattner
682b8aed07 remove a dead method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45694 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 06:47:10 +00:00
Chris Lattner
0ff23966fe Rename all the M_* flags to be namespace qualified enums, and switch 
all clients over to using predicates instead of these flags directly.
These are now private values which are only to be used to statically
initialize the tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45692 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 06:42:05 +00:00
Chris Lattner
e32d765f99 add more and significantly better comments to the rest of the machineinstr 
flags that can be set.  Add predicates for the ones lacking it, and switch
some clients over to using the predicates instead of Flags directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 06:21:53 +00:00
Chris Lattner
13cea0bcef add some mroe comments, add a isImplicitDef() method, add 
isConditionalBranch() and isUnconditionalBranch() methods.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45688 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 05:38:38 +00:00
Chris Lattner
8f707e15fb rename hasVariableOperands() -> isVariadic(). Add some comments. 
Evan, please review the comments I added to getNumDefs to make sure
that they are accurate, thx.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 05:19:29 +00:00
Chris Lattner
4764189298 Move M_* flags down in the file. Move SchedClass up in the 
TargetInstrDescriptor class and shrink to 16-bits, saving a 
word in TargetInstrDescriptor.  Add some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45686 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 05:06:49 +00:00
Chris Lattner
349c495200 Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 03:13:06 +00:00
Chris Lattner
cc8cd0cbf1 remove MachineOpCode typedef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45679 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 02:48:55 +00:00
Chris Lattner
ba6da5d5b7 remove some uses of MachineOpCode, move getSchedClass 
into TargetInstrDescriptor from TargetInstrInfo.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45678 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 02:46:03 +00:00
Chris Lattner
8ca5c67c6e Add predicates methods to TargetOperandInfo, and switch all clients 
over to using them, instead of diddling Flags directly.  Change the
various flags from const variables to enums.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45677 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 02:39:19 +00:00
Chris Lattner
69244300b8 Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects 
that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45674 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 01:56:04 +00:00
Owen Anderson
43dbe05279 Move even more functionality from MRegisterInfo into TargetInstrInfo. 
Some day I'll get it all moved over...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45672 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-07 01:35:02 +00:00
Chris Lattner
834f1ce031 rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45667 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 23:38:27 +00:00
Chris Lattner
2e48a70b35 rename isStore -> mayStore to more accurately reflect what it captures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45656 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 08:36:04 +00:00
Chris Lattner
8ed9c1a6d9 describe isStore and simplify the implementation of hasUnmodelledSideEffects. 
No functionality change. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45651 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-06 05:43:21 +00:00
Owen Anderson
d94b6a16fe Move some more functionality from MRegisterInfo to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45603 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-04 23:57:37 +00:00
Owen Anderson
f6372aa1cc Move some more instruction creation methods from RegisterInfo into InstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45484 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-01 21:11:32 +00:00
Chris Lattner
6410552250 Fix a problem where lib/Target/TargetInstrInfo.h would include and use 
a header file from libcodegen.  This violates a layering order: codegen
depends on target, not the other way around.  The fix to this is to 
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen.  It is defined in libcodegen, where 
the base is not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45475 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-01 01:03:04 +00:00
Owen Anderson
d10fd9791c Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the 
Machine-level API cleanup instigated by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45470 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-31 06:32:00 +00:00
Chris Lattner
7ed47a1335 Don't attribute in file headers anymore. See llvmdev for the 
discussion of this change.  Boy are my fingers tired. ;-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-29 19:59:42 +00:00
Bill Wendling
4be2f7fe57 s/hasSideEffects/hasUnmodelledSideEffects/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45133 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 23:19:54 +00:00
Bill Wendling
882d291487 Add "hasSideEffects" method to MachineInstrInfo class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45126 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 21:53:30 +00:00
Bill Wendling
7d9e97c2ac As per feedback, revised comments to (hopefully) make the different side effect 
flags clearer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45120 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-17 21:02:07 +00:00
Bill Wendling
6b1da9c39f Add flags to indicate that there are "never" side effects or that there "may be" 
side effects for machine instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45022 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-14 01:48:59 +00:00
Evan Cheng
6e141fd048 Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44960 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 23:12:09 +00:00
Dan Gohman
8d2ed33f6f Remove a forward-declaration for a non-existant class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44955 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 22:25:09 +00:00
Bill Wendling
8245aab330 Bit masks conflicted. Needed to bump them by one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44903 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-12 01:51:58 +00:00
Bill Wendling
041b3f8356 Reverting 44702. It wasn't correct to rename them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44727 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 23:58:46 +00:00
Bill Wendling
320c630c1b Renaming: 
isTriviallyReMaterializable -> hasNoSideEffects
  isReallyTriviallyReMaterializable -> isTriviallyReMaterializable


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44702 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 07:17:56 +00:00
Owen Anderson
20ab29068d Add a flag for indirect branch instructions. 
Target maintainers: please check that the instructions for your target are correctly marked.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44012 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-11-12 07:39:39 +00:00
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
Evan Cheng
8d3af5e7d0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28791 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-15 07:22:16 +00:00
Evan Cheng
21d03f2de0 lib/Target/Target.td 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28386 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-18 20:42:07 +00:00
Evan Cheng
13d41b9d72 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28230 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 01:58:24 +00:00
Chris Lattner
f7fb31ea33 Remove a bunch of dead stuff, shrinkifying TargetInstrDescriptor significantly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27897 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 18:32:02 +00:00
Chris Lattner
65e9f3969b add a hook to insert a noop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26560 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-05 23:48:51 +00:00
Chris Lattner
af9fa2bd0c Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo, 
a far more logical place.  Other methods should also be moved if anyone
is interested. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25912 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 20:11:55 +00:00
Chris Lattner
4ed88eb822 Add a common INLINEASM opcode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25667 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-26 23:27:02 +00:00
Jim Laskey
6cee630070 Allow itineraries to be passed through the Target Machine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24139 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-01 20:06:59 +00:00
Chris Lattner
0271077eba Move a bunch of non-deprecated methods above the "deprecated line" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23216 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-09-02 18:16:20 +00:00
Chris Lattner
09321dcf5a Add a new instruction flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23093 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 20:31:24 +00:00
Chris Lattner
ae72f4a642 Add a new field to TargetInstrDescriptor for tracking information about 
operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22908 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-19 16:56:26 +00:00
Misha Brukman
00876a2808 Convert tabs to spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21438 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 03:46:24 +00:00
Misha Brukman
34695381d6 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21412 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 20:59:05 +00:00
Chris Lattner
d7e2fe40e4 Add a new method, described in the comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19683 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-19 06:53:02 +00:00
Chris Lattner
15f63ad2e5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19242 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-01-02 02:28:31 +00:00
Chris Lattner
1fca5ff62b Convert 'struct' to 'class' in various places to adhere to the coding standards 
and work better with VC++.  Patch contributed by Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17281 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-27 16:14:51 +00:00
Chris Lattner
49db6fe193 Be consistent with our naming 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16552 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-28 18:37:00 +00:00
Chris Lattner
dcc4a6f705 Capture information about whether the target instructions have delay slots 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16550 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-28 18:33:50 +00:00
Reid Spencer
551ccae044 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/.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-09-01 22:55:40 +00:00
Brian Gaeke
d6640951c2 M_DUMMY_PHI_FLAG is no longer used to distinguish V9::PHI. Get rid of it and 
its TargetInstrInfo accessor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15907 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-18 20:04:28 +00:00
Brian Gaeke
b406d84dd8 M_PSEUDO_FLAG is no longer used. Get rid of it and its accessor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15902 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-18 17:44:17 +00:00
Brian Gaeke
93ad2cf910 getResultPos() is dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15484 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-04 08:06:30 +00:00
Chris Lattner
c2df129da9 Fix warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-08-01 18:17:36 +00:00
Alkis Evlogimenos
e4d32f6cf9 Change signature to take two basic blocks: the target and the one 
where the goto will be appended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15361 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 09:37:52 +00:00
Alkis Evlogimenos
0cad9f53b1 Doxygenify some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15360 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 08:57:27 +00:00
Alkis Evlogimenos
096f58b09a Remove const from iterators passed by value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15359 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 08:55:23 +00:00
Alkis Evlogimenos
905f7af59c Add declarations for insertGoto and reverseBranchCondition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15358 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 08:52:30 +00:00
Chris Lattner
2441d6a895 Add new M_BARRIER_FLAG flag, and isBarrier() method to TargetInstrInfo 
opCode -> Opcode


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15353 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-31 02:06:48 +00:00
Brian Gaeke
b2f30a3792 TargetInstrInfo::hasOperandInterlock() is always true, because it is 
never overridden by any target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15308 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-28 19:24:48 +00:00
Brian Gaeke
de0ceb58ba ConstantTypeMustBeLoaded has been incorporated into SparcV9PreSelection, its 
only user.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15294 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 21:43:38 +00:00
Brian Gaeke
1b4aeb5cec 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.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15277 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-27 17:43:22 +00:00
Chris Lattner
bceb68807f Eliminate the distinction between "real" and "unreal" instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11986 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 06:31:16 +00:00
Chris Lattner
450b6d2998 Scrap a huge layer of cruft out of this interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11980 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-29 05:57:21 +00:00
Alkis Evlogimenos
ab8672c8bb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11357 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 18:49:07 +00:00
Brian Gaeke
e28adaa633 Fix typos in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11333 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-11 19:47:43 +00:00
Alkis Evlogimenos
5e30002af7 Add TargetInstrInfo::isMoveInstr() to support coalescing in register 
allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10633 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-12-28 17:35:08 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-11 22:41:34 +00:00
John Criswell
6fbcc26f14 Added LLVM copyright header (for lack of a better term). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9304 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 20:19:47 +00:00
Chris Lattner
9ca5a2a33e The NOOP instruction is no longer needed. Instead, use the 
TargetInstrInfo::isNOPinstr method


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7530 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-03 18:52:15 +00:00
Vikram S. Adve
588668d468 Unify all constant evaluations that depend on register size 
in TargetInstrInfo::ConvertConstantToIntType.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7398 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-07-29 20:30:20 +00:00
Chris Lattner
be67780f31 #include <cassert> as necessary... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7315 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-07-25 17:58:41 +00:00
John Criswell
7a73b80b90 Merged in autoconf branch. This provides configuration via the autoconf 
system.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7014 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-06-30 21:59:07 +00:00
Brian Gaeke
d7908f679e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6924 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-06-27 00:00:48 +00:00
John Criswell
be583b914d Included assert.h so that the code compiles under newer versions of GCC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6682 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-06-11 14:01:36 +00:00
Misha Brukman
12745c55e1 Reword to remove reference to how things worked in the past. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6323 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-24 01:08:43 +00:00
Misha Brukman
00b05bd703 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6319 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-24 00:08:39 +00:00
Chris Lattner
3501feab81 Rename MachineInstrInfo -> TargetInstrInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5272 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-14 22:00:31 +00:00
Chris Lattner
075b4a066d * Start renaming MachineInstrInfo -> TargetInstrInfo 
* Add new M_TERMINATOR_FLAG


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5213 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:21:19 +00:00
Chris Lattner
5fa01b9c7a Sparc specific methods default to abort rather than being pure virtual 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5169 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:12:54 +00:00
Chris Lattner
13a6e1e5a1 Add comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5141 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-25 05:01:46 +00:00
Chris Lattner
70535c608d Export well known instruction opcodes usable by target independant passes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5063 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-15 22:16:08 +00:00
Misha Brukman
9ada014ec0 Define the 2-address flag used by X86 instructions (add,sub,and,or,xor) that 
need to be declared as such.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4975 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-12 23:19:51 +00:00
Chris Lattner
f6d12fbd9c Add entries to track information about implicit uses and definitions of 
the instructions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4875 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-03 05:41:32 +00:00
Chris Lattner
fe30dd3f23 Make sure that print gets a targetmachine 
CVS: ----------------------------------------------------------------------


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4735 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-11-17 23:21:45 +00:00
Chris Lattner
9bca50d6dd Add machine independant printer interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4729 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-11-17 22:54:55 +00:00
Chris Lattner
75e961ae6b * Add new "Target Specific Flags" field to instruction descriptor 
* Rename iclass to Flags


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4439 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-30 01:06:53 +00:00
Chris Lattner
f1757c414c Move TargetInstrDescriptors extern to the one .cpp file that refers to it: 
MachineInstr.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4392 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-29 17:40:30 +00:00
Chris Lattner
4683f9bfb4 Rename opCodeString to Name, add new getName() method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4388 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-29 17:35:09 +00:00
Chris Lattner
e30eeaaf72 Rename MachineInstrInfo::getDescriptor to MachineInstrInfo::get 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4387 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-29 17:26:26 +00:00
Chris Lattner
d020801aea MachineInstrInfo doesn't need a TargetMachine member 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4371 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-29 15:44:40 +00:00
Chris Lattner
2cc214c06c Strip a bunch of #includes from the file, move some virtual functions to 
.cpp file


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4364 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-28 23:53:56 +00:00
Chris Lattner
9a8e4121aa Remove all traces of the "Opcode Mask" field in the MachineInstr class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4359 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-28 21:17:20 +00:00
Chris Lattner
c7e65fb7d8 * s/unsigned int/unsigned 
* Make MachineInstrDescriptor only keep a const char * instead of a string
  for the opcode name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4335 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-28 04:55:56 +00:00
Chris Lattner
c188b733ba Make scheduling class variables be 'unsigned' instead of 'int' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4334 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-28 04:53:18 +00:00
Misha Brukman
fce1143bcf Changed MachineCodeForMethod' to MachineFunction'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4301 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-28 00:28:31 +00:00
Chris Lattner
502374a58f * Remove unneccesary #includes 
* Fix typeo in the (unused) MachineInstrInfo::isArith method


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4275 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-24 22:34:41 +00:00
Vikram S. Adve
9d0168d2d5 Minor change to interface for Create{Zero,Sign}ExtensionsInstructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3979 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-29 21:53:31 +00:00
Vikram S. Adve
d55697cf13 Added class MachineOptInfo as interface to target-specific 
routines supporting machine code optimization.
Also added method MachineInstrInfo::getNOPOpCode().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3845 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-20 00:52:09 +00:00
Vikram S. Adve
4900116ab0 Add methods to query about the representation of LLVM quantities (e.g., 
constants).  Useful for target-dependent LLVM transformations like
Preselection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3743 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-16 15:56:01 +00:00
Vikram S. Adve
68f716190b Add new function MachineInstrInfo::CreateZeroExtensionInstructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3582 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-05 18:36:41 +00:00
Vikram S. Adve
bba2485c70 Minor change in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2853 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-10 21:29:22 +00:00
Vikram S. Adve
c864fde15c New function CreateSignExtensionInstructions. 
Methods now take MachineCodeForInstruction& as an argument and record
temporary values in it directly, instead of return the temps.
Really simplifies callers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2651 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-19 15:43:31 +00:00
Chris Lattner
e7506a366e Rename Method to Function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1957 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-03-23 22:51:58 +00:00
Vikram S. Adve
851597c3b3 Added machine-independent value for INVALID_MACHINE_OPCODE. 
Just cosmetic changes otherwise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1898 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-03-18 03:19:38 +00:00
Chris Lattner
f3aaadf482 Remove #include 
move typedefs here


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1639 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-02-03 07:17:37 +00:00
Chris Lattner
697954c15d Changes to build successfully with GCC 3.02 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1503 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-01-20 22:54:45 +00:00