Chris Lattner
43c81f19ee
Add support for inserting all prototypes up-front
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13431 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-09 04:29:49 +00:00
Tanya Lattner
b4b2e9d5a7
Fixed up sched graph.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13428 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-08 16:14:24 +00:00
Tanya Lattner
5a75c91951
Registering the ModuloScheduling pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13427 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-08 16:14:02 +00:00
Brian Gaeke
3ec4f261d2
Chris told me to take these assertions out a few days ago, but I forgot to
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check this in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13313 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-02 01:04:52 +00:00
Chris Lattner
96362e9cac
Stop LiveVariables from using BasicBlocks as part of the mapping, instead
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use MachineBasicBlocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13300 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-01 21:23:35 +00:00
Chris Lattner
0aef12a7a9
Move the GraphTraits for MachineBasicBlocks to the MachineBasicBlock file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13299 91177308-0d34-0410-b5e6-96231b3b80d8
2004-05-01 21:05:34 +00:00
Brian Gaeke
3707241f31
Add pred./succ. list size methods.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13214 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-28 04:46:35 +00:00
Brian Gaeke
8560af4f5f
Move private methods to end of class decl at Chris's request
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13210 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-28 04:15:06 +00:00
Brian Gaeke
61d3d5c06b
Fix thinkos that Chris caught for me.
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Make pred mutators private.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13209 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-28 03:59:48 +00:00
Brian Gaeke
76456bc40c
Add machine-code CFG support: MachineBasicBlocks may now have their own
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predecessors and successors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13208 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-28 02:16:33 +00:00
Brian Gaeke
fd1bb8b974
Add emitWordAt() - a quick and dirty interface that the machine-dependent
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emitters can use to emit "relocations".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13116 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-23 17:11:12 +00:00
Brian Gaeke
5a509c8225
Include <string> for compatibility with gcc 3.0.x (the system compiler on
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Debian.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12985 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-16 15:57:14 +00:00
Alkis Evlogimenos
9a8b490735
Add definition list to each live interval.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12791 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-09 18:07:57 +00:00
Brian Gaeke
92eaec932c
This file does not appear to be included anywhere.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12777 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-08 19:36:26 +00:00
Brian Gaeke
c326c92ca8
This file is no longer used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12767 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-07 21:01:22 +00:00
Chris Lattner
024e91f6f6
Allow converting a builder to an iterator
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12586 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-01 04:03:10 +00:00
Brian Gaeke
da44b15125
Add clear() forwarding method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12580 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-31 22:43:12 +00:00
Chris Lattner
83706a5a3a
MachineBasicBlock::remove should not change the iterator passed into it
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12569 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-31 21:58:50 +00:00
Alkis Evlogimenos
9cccb8aec7
Fix bug introduced by yesterday's changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12119 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-04 18:02:07 +00:00
Brian Gaeke
c54839573c
Make MachineOperand's value named 'contents'. Make really, really sure
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it is always completely initialized and copied.
Also, fix up many comments and asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12100 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-03 19:07:27 +00:00
Alkis Evlogimenos
5f37502bfb
Add the long awaited memory operand folding support for linear scan
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 20:05:10 +00:00
Chris Lattner
a523cdf1b6
Remove public header. It's been moved to lib/Target/SparcV9
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12004 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:13:20 +00:00
Chris Lattner
e85f2348c9
Do not use explicit casts that hide the dependence on Instruction being
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annotable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12000 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:26 +00:00
Chris Lattner
7598a1a9a8
Remove unneeded #include
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11978 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:15:56 +00:00
Chris Lattner
6a8a9b4413
Continue Alkis's int64_t cleanup. This makes all of the immediate related
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methods take an int or unsigned value instead of int64_t.
Also, add an 'addImm' method to the MachineInstrBuilder class, because the
fact that the hardware sign or zero extends it does not/should not matter
to the code generator. Once the old sparc backend is removed the difference
can be eliminated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11976 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 05:06:49 +00:00
Chris Lattner
c3c106ca59
Add BuildMI variants that take a MBB::iterator
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11975 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 04:55:28 +00:00
Alkis Evlogimenos
bd16ef84bf
Make MachineOperand's immediate value an int and save 4 bytes out of
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each MachineOperand. We don't really need an int64_t immediate :-).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11906 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-27 15:05:28 +00:00
Alkis Evlogimenos
4d0d864be3
Add DenseMap template and actually use it for for mapping virtual regs
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to objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11840 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-25 21:55:45 +00:00
Brian Gaeke
748fba141f
FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11804 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-24 19:46:00 +00:00
Alkis Evlogimenos
743d0a1f83
Refactor rewinding code for finding the first terminator of a basic
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block into MachineBasicBlock::getFirstTerminator().
This also fixes a bug in the implementation of the above in both
RegAllocLocal and InstrSched, where instructions where added after the
terminator if the basic block's only instruction was a terminator (it
shouldn't matter for RegAllocLocal since this case never occurs in
practice).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11748 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 18:14:48 +00:00
Alkis Evlogimenos
a2f6a408dc
Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11719 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 00:50:15 +00:00
Alkis Evlogimenos
890f92328d
Move MOTy::UseType enum into MachineOperand. This eliminates the
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switch statements in the constructors and simplifies the
implementation of the getUseType() member function. You will have to
specify defs using MachineOperand::Def instead of MOTy::Def though
(similarly for Use and UseAndDef).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11715 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 19:23:26 +00:00
Alkis Evlogimenos
e33da36cbd
Fix silly bug in implementation of getUseType(). Thanks Misha.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11711 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 07:24:19 +00:00
Alkis Evlogimenos
f216421181
When folding memory operands in machine instructions be careful to
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leave register operands with the same use/def flags as the original
instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11709 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 06:54:26 +00:00
Alkis Evlogimenos
7200c6b82a
Abstract merging of ranges away from number of slots per instruction.
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Also make it less aggressive as the current implementation breaks in
some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11696 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-22 04:05:13 +00:00
Alkis Evlogimenos
39a0d5c112
Too many changes in one commit:
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1. LiveIntervals now implement a 4 slot per instruction model. Load,
Use, Def and a Store slot. This is required in order to correctly
represent caller saved register clobbering on function calls,
register reuse in the same instruction (def resues last use) and
also spill code added later by the allocator. The previous
representation (2 slots per instruction) was insufficient and as a
result was causing subtle bugs.
2. Fixes in spill code generation. This was the major cause of
failures in the test suite.
3. Linear scan now has core support for folding memory operands. This
is untested and not enabled (the live interval update function does
not attempt to fold loads/stores in instructions).
4. Lots of improvements in the debugging output of both live intervals
and linear scan. Give it a try... it is beautiful :-)
In summary the above fixes all the issues with the recent reserved
register elimination changes and get the allocator very close to the
next big step: folding memory operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11654 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-20 06:15:40 +00:00
Chris Lattner
da8ab2ea45
ADd a method for when an instruction moves
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11626 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 18:28:22 +00:00
Chris Lattner
5e61fa9519
Add a MachineBasicBlock::getParent() method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11622 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-19 16:13:54 +00:00
Alkis Evlogimenos
52f8f56ef4
Move unused typedefs in private section. Add method to return interval
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given a register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11608 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 23:14:52 +00:00
Chris Lattner
9b2c31c5cb
eliminate a pair of really inefficient methods now that noone uses them
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11579 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-18 16:45:22 +00:00
Alkis Evlogimenos
7093d37304
Add LiveIntervals::Interval::empty() member function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11520 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-17 05:14:37 +00:00
Alkis Evlogimenos
aad5c05051
Add LeakDetection to MachineInstr.
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Move out of line member functions of MachineBasicBlock to
MachineBasicBlock.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11497 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-16 07:17:43 +00:00
Alkis Evlogimenos
843b160a20
Eliminate the use of spill (reserved) registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11476 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 10:24:21 +00:00
Chris Lattner
46ccf6d382
finegrainify namespacification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11469 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-15 05:52:36 +00:00
Alkis Evlogimenos
be766c7246
Remove getAllocatedRegNum(). Use getReg() instead.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11393 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 21:01:20 +00:00
Alkis Evlogimenos
903b22cd51
Mark MachineBasicBlock::operator[] deprecated.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11392 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 20:05:56 +00:00
Alkis Evlogimenos
87af94b291
Add getNumVirtualRegs().
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Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11388 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 18:07:06 +00:00
Brian Gaeke
f13a3f4dd1
Include <iosfwd>.
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Add prototypes for MachineBasicBlock's dump() and print() methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11365 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-13 04:40:15 +00:00
Alkis Evlogimenos
94dc07728f
Move ilist_trairs<MachineInstr> in MachineBasicBlock.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11358 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 19:12:03 +00:00
Alkis Evlogimenos
ab8672c8bb
Add parent pointer to MachineInstr that points to owning
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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
Chris Lattner
2a90ba6017
Rename the opCode instance variable to Opcode
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11348 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 16:09:53 +00:00
Chris Lattner
9fc77d1358
Remove a dead field from MachineInstr!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11347 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 16:05:03 +00:00
Brian Gaeke
0eda78a372
Add one more doxygen comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11344 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 04:26:49 +00:00
Brian Gaeke
56aa531f93
Express one of MachineOperand's many constructors in terms of another, by means of default arguments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11343 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 04:15:00 +00:00
Brian Gaeke
2d58f0691e
Remove these MachineOpCodeFlags and their accessor - they are never set.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11341 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 04:00:55 +00:00
Alkis Evlogimenos
c0b9dc5be7
Change MachineBasicBlock's vector of MachineInstr pointers into an
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ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 02:27:10 +00:00
Brian Gaeke
cd0b3a90aa
Remove getOpCode(). Help doxygenify some comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11338 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-12 01:34:03 +00:00
Chris Lattner
d6b5e5f637
Urg, the X86 backend DOES use virtual register operands. :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11288 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 21:43:11 +00:00
Chris Lattner
376ad9fa9f
Remove and simplify some of the bewildering collection of isFOORegister
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methods which have strangely different semantics in different backends,
and noone knew what any did.
Getting rid of these ALSO allows the dependence of MachineInstr.h on
MRegisterInfo.h to be removed, which makes me much happier, and probably
alkis too. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11287 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 21:21:17 +00:00
Chris Lattner
9f42dd5472
Eliminate MachineOperand::isPhysicalRegister. The X86 backend should use
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MRegisterInfo::isPhysicalRegister(MO.getReg()) and the Sparc backend should
use isMachineRegister()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11279 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 20:42:11 +00:00
Chris Lattner
b2e5db94cf
Simplify condition, this does not change the predicate at all though
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11275 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-10 20:30:40 +00:00
Brian Gaeke
f7ecb9548d
SchedGraph doesn't need to be friends with SchedGraphNodeCommon anymore.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11240 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-09 18:43:06 +00:00
Alkis Evlogimenos
14be64018f
Modify the two address instruction pass to remove the duplicate
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operand of the instruction and thus simplify the register allocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-04 22:17:40 +00:00
Brian Gaeke
fc1f6e835c
Include <iosfwd> and <string> instead of <iostream>.
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Take away the default iostream argument of createMachineFunctionPrinterPass(),
at Chris's request.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11121 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-04 21:41:10 +00:00
Alkis Evlogimenos
4e7854407c
When an instruction like: A += B had both A and B virtual registers
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spilled, A was loaded from its stack location twice. This fixes the bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11093 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-03 01:13:07 +00:00
Alkis Evlogimenos
9fe7602862
Revert changes. Will implement this using a different set of primitives
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11091 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-02 23:08:58 +00:00
Alkis Evlogimenos
782ce955b2
Add MachineOperand::setDef() and MachineOperand::setUse() so that the
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TwoAddressInstructionPass can correctly update use/def information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11086 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-02 21:55:18 +00:00
Alkis Evlogimenos
08cec00588
Merge safe parts from last night's buggy commit. These do not break
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any test cases :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11032 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 19:59:32 +00:00
Alkis Evlogimenos
4d46e1e521
Revert last night's changes as they broke some tests. Will remerge parts of the patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11029 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 14:37:41 +00:00
Alkis Evlogimenos
32bdd4ea65
Several performance enhancements and cleanups from Chris.
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Simplification of LiveIntervals::Interval::overlaps() and addition of
examples to overlaps() and liveAt() to make them clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11028 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-31 04:56:07 +00:00
Chris Lattner
43549f710a
Add a new lazily constructed mapping from Idx's the MBB they represent
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11017 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-30 22:08:09 +00:00
Brian Gaeke
09caa3751f
Give clients of MachineFunctionPrinter the ability to specify a banner and
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choose an ostream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11016 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-30 21:53:46 +00:00
Alkis Evlogimenos
79b0c3f0b9
Fix failing test cases with joined live intervals. It turns out that
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when joining we need to check if we overlap with the second interval
or any of its aliases.
Also make joining intervals the default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10973 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-23 13:37:51 +00:00
Alkis Evlogimenos
e88280a422
Add option to join live intervals. Two intervals are joined if there
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is a move between two registers, at least one of the registers is
virtual and the two live intervals do not overlap.
This results in about 40% reduction in intervals, 30% decrease in the
register allocators running time and a 20% increase in peephole
optimizations (mainly move eliminations).
The option can be enabled by passing -join-liveintervals where
appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10965 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-22 23:08:45 +00:00
Tanya Lattner
a105c802b2
Moved iterators to common file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10925 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-20 17:49:42 +00:00
Alkis Evlogimenos
3b02cbe752
Fold open interval ends handling into
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LiveIntervals::Interval::expiredAt() and simplify regalloc code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10894 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-16 20:17:05 +00:00
Alkis Evlogimenos
f5f1689ed2
Use a list instead of a vector to store intervals. This will be needed
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when we join intervals and one of the two will need to be removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10892 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-16 16:06:59 +00:00
Alkis Evlogimenos
1a119e2410
Remove allocatable registers vector. It is already provided by
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LiveVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10830 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-13 22:10:43 +00:00
Alkis Evlogimenos
b08bdc4a16
Make LiveVariables::HandlePhysRegUse and
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LiveVariables::HandlePhysRegDef private they use information that is
not in memory when LiveVariables finishes the analysis.
Also update the TwoAddressInstructionPass to not use this interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10755 91177308-0d34-0410-b5e6-96231b3b80d8
2004-01-11 09:18:45 +00:00
Chris Lattner
f70e0c216c
Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering
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implementation from the TargetMachine directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10636 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 21:23:38 +00:00
Alkis Evlogimenos
26bfc08b80
Add coalescing to register allocator. A hint is added to each interval
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which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10634 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 17:58:18 +00:00
Chris Lattner
09c692bcef
add argument
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10625 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 09:42:49 +00:00
Chris Lattner
624affb56f
ABC's must have virtual dtors! Shame on me!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10624 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 08:55:50 +00:00
Chris Lattner
8a1931a942
Move header into top-level llvm dir
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10622 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 08:30:07 +00:00
Chris Lattner
3f52c1561d
Add new interface that allows removal of some code from the code generators,
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provides for future extensibility, might help the LLVA project avoid having to
hack their own LLI, and provides support required for the experimental Venus
project.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10620 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-28 08:19:13 +00:00
Alkis Evlogimenos
6b4edbaaf9
Change weight into a float so that we can take into account the
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nesting level when computing it. Right now the allocator uses:
w = sum_over_defs_uses( 10 ^ nesting level );
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10569 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-21 20:19:10 +00:00
Alkis Evlogimenos
169cfd0196
Add support for inactive intervals. This effectively reuses registers
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for live ranges that fall into assigned registers' holes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10566 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-21 05:43:40 +00:00
Chris Lattner
3e200e6c3b
Rearrange code, indent for the namespace, add the createMachineFunctionPrinterPass
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to passes.h, and add the machien destruction pass to Passes.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10557 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 10:18:58 +00:00
Chris Lattner
73c1366ee2
Remove sparc specific passes from public headers
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10552 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 09:15:21 +00:00
Chris Lattner
61838824c2
Remove a horrible API
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10551 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 09:15:01 +00:00
Alkis Evlogimenos
4c080863de
Remove TwoAddressInstruction from the public headers and add an ID
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instead, since this pass doesn't expose any state to its users.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10520 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 22:40:24 +00:00
Alkis Evlogimenos
71499ded4d
Add TwoAddressInstructionPass to handle instructions that have two or
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more operands and the two first operands are constrained to be the
same. The pass takes an instruction of the form:
a = b op c
and transforms it into:
a = b
a = a op c
and also preserves live variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10512 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 13:06:04 +00:00
Alkis Evlogimenos
485ec3c21e
Rename LiveIntervals::expired() to LiveIntervals::expiredAt().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10511 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 08:56:11 +00:00
Alkis Evlogimenos
dd2cc65f34
Handle multiple virtual register definitions gracefully.
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Move some of the longer LiveIntervals::Interval method out of the
header and add debug information to them. Fix bug and simplify range
merging code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10509 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-18 08:48:48 +00:00
Alkis Evlogimenos
721b4e5715
I wonder how this didn't cause any tests to fail...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10462 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-14 13:30:19 +00:00
Alkis Evlogimenos
4d7af65903
Change interface of MachineOperand as follows:
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a) remove opIsUse(), opIsDefOnly(), opIsDefAndUse()
b) add isUse(), isDef()
c) rename opHiBits32() to isHiBits32(),
opLoBits32() to isLoBits32(),
opHiBits64() to isHiBits64(),
opLoBits64() to isLoBits64().
This results to much more readable code, for example compare
"op.opIsDef() || op.opIsDefAndUse()" to "op.isDef()" a pattern used
very often in the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10461 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-14 13:24:17 +00:00
Alkis Evlogimenos
4c214d2bf0
Ignore non-allocatable physical registers in live interval analysis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10449 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 11:11:02 +00:00
Alkis Evlogimenos
b27ef248f5
Move operator<<(std::ostream&, const LiveInterval&) out of the header file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10290 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-05 10:38:28 +00:00
Chris Lattner
786a518f47
Add some "useful" methods
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10277 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-01 05:30:29 +00:00
Alkis Evlogimenos
ff0cbe175d
Merging the linear scan register allocator in trunk. It currently passes most tests under test/Programs/SingleSource/Benchmarks/Shootout so development will continue on trunk. The allocator is not enabled by default. You will need to pass -regallo=linearscan to lli or llc to use it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10103 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-20 03:32:25 +00:00