Chris Lattner
db2a0987cc
Use more efficient map operations. Fix a bug that would affect hypothetical
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targets that supported multiple memory operands.
llvm-svn: 16614
2004-09-30 16:35:08 +00:00
Chris Lattner
8d8b8b05bd
There is no need to call MachineInstr::print directly, just send the MI& to an ostream.
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llvm-svn: 16613
2004-09-30 16:10:45 +00:00
Chris Lattner
168a4380d9
Simplify the logic in the simple spiller and capitalize some variables
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llvm-svn: 16609
2004-09-30 02:59:33 +00:00
Chris Lattner
1f61bfb971
Switch from defaulting to the 'local' spiller to the 'simple' spiller. The
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two spillers produce perfectly identical code (at least on povray and eon),
but the simple spiller is substantially faster than the local spiller. Once
the local spiller is improved, we can switch back.
Switching cuts 5.2% off of the llc time for povray (about 1.3s).
llvm-svn: 16608
2004-09-30 02:40:06 +00:00
Chris Lattner
d716b5739c
Don't use a densemap for keeping track of which vregs are already loaded, just
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use a simple vector. This speeds up -spiller=simple from taking 22s to taking
.1s on povray (debug build). This change does not modify the generated code.
llvm-svn: 16607
2004-09-30 02:33:48 +00:00
Chris Lattner
d27ff8035e
Use longer and more explicit names for instance vars (particularly important
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data structures). Fix the print method to send to the right ostream, not
always cerr. Delete typedefs that are only used once.
llvm-svn: 16606
2004-09-30 02:15:18 +00:00
Chris Lattner
418207045d
Reindent code, improve comments, move huge nested methods out of classes,
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prune #includes, add print/dump methods, etc. No functionality changes.
llvm-svn: 16604
2004-09-30 01:54:45 +00:00
Reid Spencer
c4abcbefb1
Changes For Bug 352
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Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
llvm-svn: 16137
2004-09-01 22:55:40 +00:00
Chris Lattner
463d46f17a
Stop using CreateStackObject(RegClass*)
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llvm-svn: 15775
2004-08-15 22:02:22 +00:00
Chris Lattner
e58190f5f6
These methods no longer take a TargetRegisterClass* operand.
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llvm-svn: 15774
2004-08-15 21:56:44 +00:00
Brian Gaeke
f18cdca667
These files don't need to include <iostream> since they include "Support/Debug.h".
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llvm-svn: 15089
2004-07-21 20:50:33 +00:00
Chris Lattner
c014005d53
Fix IA64 compatibility
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llvm-svn: 14866
2004-07-16 00:06:01 +00:00
Tanya Lattner
da38dc5180
Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function.
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llvm-svn: 14389
2004-06-25 00:13:11 +00:00
Chris Lattner
0046ea7105
Adjust to new TargetMachine interface
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llvm-svn: 13956
2004-06-02 05:57:12 +00:00
Alkis Evlogimenos
516e16441b
Add method to assign stack slot to virtual register without creating a
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new one.
llvm-svn: 13895
2004-05-29 20:38:05 +00:00
Alkis Evlogimenos
0e0433a791
Spill explicit physical register defs as well.
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llvm-svn: 12260
2004-03-09 08:35:13 +00:00
Alkis Evlogimenos
02e8f14c6a
As I wrote in the docs, simple is the default spiller :-)
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llvm-svn: 12189
2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
467364b706
Add simple spiller.
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llvm-svn: 12188
2004-03-06 22:38:29 +00:00
Alkis Evlogimenos
c4ad8080f7
Add a spiller option to llc. A simple spiller will come soon. When we get CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now.
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llvm-svn: 12062
2004-03-01 23:18:15 +00:00
Alkis Evlogimenos
64e76a0d43
Add the long awaited memory operand folding support for linear scan
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llvm-svn: 12058
2004-03-01 20:05:10 +00:00
Alkis Evlogimenos
63fda9c474
Make spiller push stores right after the definition of a register so
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that they are as far away from the loads as possible.
llvm-svn: 11895
2004-02-27 04:51:35 +00:00
Alkis Evlogimenos
cff0fc180c
Clear maps right after basic block is processed.
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llvm-svn: 11892
2004-02-26 23:22:23 +00:00
Alkis Evlogimenos
af42cbf42f
Fix bugs found with recent addition of assertions in
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MRegisterInfo::is{Physical,Virtual}Register.
llvm-svn: 11849
2004-02-25 23:21:52 +00:00
Alkis Evlogimenos
f1516015af
Add DenseMap template and actually use it for for mapping virtual regs
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to objects.
llvm-svn: 11840
2004-02-25 21:55:45 +00:00
Alkis Evlogimenos
6d7150e9bb
Move machine code rewriter and spiller outside the register
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allocator.
The implementation is completely rewritten and now employs several
optimizations not exercised before. For example for 164.gzip we have
997 loads and 699 stores vs the 1221 loads and 880 stores we have
before.
llvm-svn: 11798
2004-02-24 08:58:30 +00:00
Alkis Evlogimenos
d192266264
Refactor VirtRegMap out of RegAllocLinearScan as the first part of bug
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251 (providing a generic machine code rewriter/spiller).
llvm-svn: 11780
2004-02-23 23:08:11 +00:00
