1c5942fee9
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
28bc753cac
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
39fef8df03
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
e2b77d57c0
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
7c16caa336
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
c66f27fd29
Stop using CreateStackObject(RegClass*)
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llvm-svn: 15775
2004-08-15 22:02:22 +00:00
98de1d7795
These methods no longer take a TargetRegisterClass* operand.
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llvm-svn: 15774
2004-08-15 21:56:44 +00:00
902dcf0729
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
34afafc190
Fix IA64 compatibility
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llvm-svn: 14866
2004-07-16 00:06:01 +00:00
23dbc8170c
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
2150542af9
Adjust to new TargetMachine interface
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llvm-svn: 13956
2004-06-02 05:57:12 +00:00
fd735bcf28
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
6623cd78f9
Spill explicit physical register defs as well.
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llvm-svn: 12260
2004-03-09 08:35:13 +00:00
cb98644e9b
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
79850121ad
Add simple spiller.
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llvm-svn: 12188
2004-03-06 22:38:29 +00:00
31953c7a10
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
b76d234ee9
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
941f9310bb
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
5a3bab9402
Clear maps right after basic block is processed.
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llvm-svn: 11892
2004-02-26 23:22:23 +00:00
e62ddd405d
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
d8bace7f60
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
1dd872ce94
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
c794a9060f
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
Chris Lattner