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
Brian Gaeke
d0fde30ce8
Put all LLVM code into the llvm namespace, as per bug 109.
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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
Chris Lattner
d97487d1e0
Actually share constants local to a function!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9417 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-23 16:29:12 +00:00
Chris Lattner
5f7e61d226
Add a new map
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9311 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 20:55:13 +00:00
John Criswell
6fbcc26f14
Added LLVM copyright header (for lack of a better term).
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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
Brian Gaeke
661ab811d8
This file has funny include guards and funny extra whitespace.
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Make this file less funny.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9186 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-16 23:43:35 +00:00
Chris Lattner
ea2c1dcb7c
We'll need this soon as well
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9145 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-15 22:09:46 +00:00
Alkis Evlogimenos
185a7ab2ed
Forward declare class Type since it is used in this class and Type.h is not included
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8958 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-08 04:45:45 +00:00
Alkis Evlogimenos
7237ecef13
Moved enum and command-line option in separate file. Also added function that returns the user selected register allocator to the caller.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8819 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-02 16:57:49 +00:00
Alkis Evlogimenos
eed462b685
Change llc command line for register allocators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8815 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-02 06:13:19 +00:00
Chris Lattner
e5d1a22ef2
Forward declare a class
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8797 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 20:15:40 +00:00
Chris Lattner
799e0802b2
This got merged into Passes.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8796 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 20:15:32 +00:00
Chris Lattner
086610926f
Include the sparc register in this file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8794 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 20:14:43 +00:00
Chris Lattner
48486893f4
Standardize header file comments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8782 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 18:37:50 +00:00
Chris Lattner
c36e4f465c
Fix header comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8779 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 18:12:25 +00:00
Chris Lattner
697ebcadbf
Fix header, remove dead decl
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8777 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 18:06:51 +00:00
Chris Lattner
5259f8d030
Fix header file comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8776 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-30 18:05:30 +00:00
Chris Lattner
5ab12b579e
Remove header files that were privatized
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8307 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:33:38 +00:00
Chris Lattner
1a3350d6cd
This file is never #included
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8300 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-01 20:19:31 +00:00
Tanya Lattner
f68b8a2dee
Moved index in BB to common graph class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8175 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-28 15:31:28 +00:00
Tanya Lattner
d04087cce6
*** empty log message ***
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8161 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-27 15:52:23 +00:00
Tanya Lattner
1796cb7fbc
Cleaned up the code (spacing, not needed headers) and changed ostream function. Also made some functions inline.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8154 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-27 02:45:08 +00:00
Tanya Lattner
0320b1406e
SchedGraphCommon header file. Contains class definition for SchedGraphCommon which is used by SchedGraph and ModuloSchedGraph (coming soon).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8149 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-25 23:12:23 +00:00
Chris Lattner
b274d4a38b
Add missing #include
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8063 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-22 23:08:55 +00:00
Misha Brukman
ef6a6a69ff
The word dependent' has no
a'.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8030 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-21 22:14:26 +00:00
Chris Lattner
f4f5f8bcaa
Add support for basic blocks, unary/binary unspecs, conditional branches, ...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7874 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-15 04:52:51 +00:00
Brian Gaeke
bf3c4cfaad
Factory methods for function passes now return type FunctionPass *.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7839 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-14 06:09:32 +00:00
Brian Gaeke
19df3876e6
Factory methods for FunctionPasses now return type FunctionPass *.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7823 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-13 18:18:15 +00:00
Vikram S. Adve
906cd975df
Make MInst2LVSetBI and MInst2LVSetAI be hash_maps instead of maps.
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Add some comments and non-const methods to fix constness problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7797 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-12 23:39:08 +00:00
Chris Lattner
cacf462915
Initial checkin of SelectionDAG header file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7716 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-11 14:56:26 +00:00
Chris Lattner
3314d8d656
There was no reason for these to be bit-fields, they just need to be unique.
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Also, add an isVoid item
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7659 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-07 00:17:00 +00:00