Commit Graph

382 Commits

Author SHA1 Message Date
Alkis Evlogimenos
26bfc08b80 Add coalescing to register allocator. A hint is added to each interval
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
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!
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
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,
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
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
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
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
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
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
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
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().
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.
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...
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:
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.
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.
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
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.
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.
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!
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
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).
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.
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
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
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.
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
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
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
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
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
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
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
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
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
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
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.
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 ***
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.
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).
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
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'.
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, ...
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 *.
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 *.
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.
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
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.
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