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961 Commits

Author SHA1 Message Date
Alkis Evlogimenos
0e0433a791 Spill explicit physical register defs as well. 
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 :-) 
llvm-svn: 12189
 2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
467364b706 Add simple spiller. 
llvm-svn: 12188
 2004-03-06 22:38:29 +00:00
Brian Gaeke
aa96ff7926 Make MachineOperand's value named 'contents'. Make really, really sure 
it is always completely initialized and copied.
Also, fix up many comments and asserts.

llvm-svn: 12100
 2004-03-03 19:07:27 +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. 
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 
llvm-svn: 12058
 2004-03-01 20:05:10 +00:00
Brian Gaeke
b78f8498f0 TargetCacheInfo has been removed; its only uses were to propagate a constant 
(16) into certain areas of the SPARC V9 back-end. I'm fairly sure the US IIIi's
dcache has 32-byte lines, so I'm not sure where the 16 came from. However, in
the interest of not breaking things any more than they already are, I'm going
to leave the constant alone.

llvm-svn: 12043
 2004-03-01 06:43:29 +00:00
Tanya Lattner
27c08f11bf Adding new Modulo Scheduling graph files. 
llvm-svn: 12031
 2004-03-01 02:50:57 +00:00
Tanya Lattner
55de04447c Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress. 
llvm-svn: 12030
 2004-03-01 02:50:01 +00:00
Chris Lattner
33b5dd0463 Add an assert 
llvm-svn: 12010
 2004-02-29 22:01:51 +00:00
Chris Lattner
37418d74a1 Add back #include I messed up 
llvm-svn: 12009
 2004-02-29 21:40:53 +00:00
Chris Lattner
b82a16f3a5 Urg, forgot to check this in. 
llvm-svn: 12007
 2004-02-29 21:03:08 +00:00
Chris Lattner
fe38629411 Move the private MachineInstrAnnot.h into a private directory. 
llvm-svn: 12003
 2004-02-29 19:12:51 +00:00
Chris Lattner
b73a182845 Remove use of an ugly header 
llvm-svn: 12002
 2004-02-29 19:04:31 +00:00
Chris Lattner
0acd73e11f Move methods out of .h file 
llvm-svn: 12001
 2004-02-29 19:02:39 +00:00
Chris Lattner
b5f0e162c7 Eliminate the distinction between "real" and "unreal" instructions 
llvm-svn: 11986
 2004-02-29 06:31:16 +00:00
Chris Lattner
8b7ac81d2e int64_t -> int 
llvm-svn: 11977
 2004-02-29 05:07:02 +00:00
Alkis Evlogimenos
ddfd27ff97 Rename member function to be consistent with the rest. 
llvm-svn: 11898
 2004-02-27 06:11:15 +00:00
Alkis Evlogimenos
63fda9c474 Make spiller push stores right after the definition of a register so 
that they are as far away from the loads as possible.

llvm-svn: 11895
 2004-02-27 04:51:35 +00:00
Alkis Evlogimenos
3093de5bfb Fix crash caused by passing register 0 to 
MRegisterInfo::isPhysicalRegister().

llvm-svn: 11894
 2004-02-27 01:52:34 +00:00
Alkis Evlogimenos
cff0fc180c Clear maps right after basic block is processed. 
llvm-svn: 11892
 2004-02-26 23:22:23 +00:00
Alkis Evlogimenos
b15631fcfa Uncomment assertions that register# != 0 on calls to 
MRegisterInfo::is{Physical,Virtual}Register. Apply appropriate fixes
to relevant files.

llvm-svn: 11882
 2004-02-26 22:00:20 +00:00
Chris Lattner
ac94c441b6 No need to clear the map here, it will always be empty 
llvm-svn: 11868
 2004-02-26 05:21:21 +00:00
Alkis Evlogimenos
af42cbf42f Fix bugs found with recent addition of assertions in 
MRegisterInfo::is{Physical,Virtual}Register.

llvm-svn: 11849
 2004-02-25 23:21:52 +00:00
Brian Gaeke
4f0a829a68 Great sparc renaming fallout IV: Sparc --> SparcV9. 
llvm-svn: 11844
 2004-02-25 22:09:36 +00:00
Alkis Evlogimenos
2caa729f02 Remove asssert since it is breaking cases that it shouldn't. 
llvm-svn: 11841
 2004-02-25 22:01:06 +00:00
Alkis Evlogimenos
f1516015af Add DenseMap template and actually use it for for mapping virtual regs 
to objects.

llvm-svn: 11840
 2004-02-25 21:55:45 +00:00
Chris Lattner
ccae3f6d60 Add an assertion 
llvm-svn: 11830
 2004-02-25 19:37:44 +00:00
Brian Gaeke
eae0364189 FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar 
llvm-svn: 11804
 2004-02-24 19:46:00 +00:00
Alkis Evlogimenos
6d7150e9bb Move machine code rewriter and spiller outside the register 
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
042f01039b Add predicates for checking if a virtual register has a physical 
register mapping or a stack slot mapping.

llvm-svn: 11795
 2004-02-24 06:30:36 +00:00
Alkis Evlogimenos
0d0db88889 Make enum private as it is an implementation detail. 
llvm-svn: 11782
 2004-02-23 23:49:40 +00:00
Alkis Evlogimenos
9344a740be Remove '4Virt' from member function names as it is obvious. 
llvm-svn: 11781
 2004-02-23 23:47:10 +00:00
Alkis Evlogimenos
d192266264 Refactor VirtRegMap out of RegAllocLinearScan as the first part of bug 
251 (providing a generic machine code rewriter/spiller).

llvm-svn: 11780
 2004-02-23 23:08:11 +00:00
Alkis Evlogimenos
34f28e5d3f Add number of spilled registers statistic. 
llvm-svn: 11759
 2004-02-23 18:45:32 +00:00
Chris Lattner
82e1a3657d Fix bugs in finegrainification 
llvm-svn: 11758
 2004-02-23 18:40:08 +00:00
Chris Lattner
1bf9dde4a1 Finegrainify namespacification 
llvm-svn: 11757
 2004-02-23 18:38:20 +00:00
Alkis Evlogimenos
82a1d7d30e Use MachineBasicBlock::getParent(). 
llvm-svn: 11756
 2004-02-23 18:36:38 +00:00
Alkis Evlogimenos
2863fbd178 Remove implementation of default constructor as it is useless now. 
llvm-svn: 11755
 2004-02-23 18:28:35 +00:00
Alkis Evlogimenos
9b103024ef Refactor rewinding code for finding the first terminator of a basic 
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).

llvm-svn: 11748
 2004-02-23 18:14:48 +00:00
Alkis Evlogimenos
50598d1135 Improved PhysRegTracker interface. RegAlloc lazily allocates the register tracker using a std::auto_ptr 
llvm-svn: 11738
 2004-02-23 06:10:13 +00:00
Alkis Evlogimenos
99af6ca36b Simplify iterator usage now that we have next(). Also don't pass iterators by reference now that MachineInstr* are in an ilist 
llvm-svn: 11732
 2004-02-23 04:12:30 +00:00
Alkis Evlogimenos
976f485826 Some code cleanups from Chris 
llvm-svn: 11724
 2004-02-23 01:57:39 +00:00
Alkis Evlogimenos
1525e120a6 Fix comments in PhysRegTracker and rename isPhysRegAvail to isRegAvail to be consistent with the other two 
llvm-svn: 11723
 2004-02-23 01:25:05 +00:00
Alkis Evlogimenos
ee3ef42726 Move LiveIntervals.h up to be the first included header 
llvm-svn: 11721
 2004-02-23 01:01:21 +00:00
Alkis Evlogimenos
ba2b9aec71 Pull PhysRegTracker out of RegAllocLinearScan as it can be used by other allocators as well 
llvm-svn: 11720
 2004-02-23 00:53:31 +00:00
Alkis Evlogimenos
850bd0819f Move LiveIntervals.h to lib/CodeGen since it shouldn't be exposed to other parts of the compiler 
llvm-svn: 11719
 2004-02-23 00:50:15 +00:00
Chris Lattner
5485375e5d Another bug fix for empty MBB's 
llvm-svn: 11716
 2004-02-22 19:37:31 +00:00
Chris Lattner
56a7886c8a Fix a bug where we were implicitly assuming that there would be at least 
one terminator instruction in each basic block.

llvm-svn: 11714
 2004-02-22 19:08:15 +00:00
Alkis Evlogimenos
ba33a0ab9b Print basic block boundaries in machine instruction debug output. 
llvm-svn: 11704
 2004-02-22 05:46:04 +00:00