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966 Commits

Author SHA1 Message Date
Alkis Evlogimenos a333b1382f Correctly update LiveVariables when an instruction changes 
llvm-svn: 12561
 2004-03-30 22:44:39 +00:00
Brian Gaeke 2fe0ac9ade Change how the beginnings and ends of MachineFunctions are printed. Get 
rid of the funny cast.

llvm-svn: 12537
 2004-03-29 21:58:31 +00:00
Alkis Evlogimenos 02a5354d9b Make the set of fixed (preallocated) intervals be a fixed superset of 
unhandled + handled. So unhandled is now including all fixed intervals
and fixed intervals never changes when processing a function.

llvm-svn: 12462
 2004-03-17 00:48:59 +00:00
Chris Lattner e0b49952f6 Fix PR294 
llvm-svn: 12425
 2004-03-16 01:45:55 +00:00
Alkis Evlogimenos 48da2f8a6d Change MRegisterInfo::foldMemoryOperand to return the folded 
instruction to make the API more flexible.

llvm-svn: 12386
 2004-03-14 07:19:51 +00:00
Alkis Evlogimenos 6623cd78f9 Spill explicit physical register defs as well. 
llvm-svn: 12260
 2004-03-09 08:35:13 +00:00
Alkis Evlogimenos cb98644e9b As I wrote in the docs, simple is the default spiller :-) 
llvm-svn: 12189
 2004-03-06 23:08:44 +00:00
Alkis Evlogimenos 79850121ad Add simple spiller. 
llvm-svn: 12188
 2004-03-06 22:38:29 +00:00
Brian Gaeke 015972103d 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 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. 
llvm-svn: 12062
 2004-03-01 23:18:15 +00:00
Alkis Evlogimenos b76d234ee9 Add the long awaited memory operand folding support for linear scan 
llvm-svn: 12058
 2004-03-01 20:05:10 +00:00
Brian Gaeke 427cec1395 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 48a503be04 Adding new Modulo Scheduling graph files. 
llvm-svn: 12031
 2004-03-01 02:50:57 +00:00
Tanya Lattner dd10fbe775 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 604cc83933 Add an assert 
llvm-svn: 12010
 2004-02-29 22:01:51 +00:00
Chris Lattner e0c3c18802 Add back #include I messed up 
llvm-svn: 12009
 2004-02-29 21:40:53 +00:00
Chris Lattner 90ecb92838 Urg, forgot to check this in. 
llvm-svn: 12007
 2004-02-29 21:03:08 +00:00
Chris Lattner 3859031b9b Move the private MachineInstrAnnot.h into a private directory. 
llvm-svn: 12003
 2004-02-29 19:12:51 +00:00
Chris Lattner d5a49c477d Remove use of an ugly header 
llvm-svn: 12002
 2004-02-29 19:04:31 +00:00
Chris Lattner 6194ee84ba Move methods out of .h file 
llvm-svn: 12001
 2004-02-29 19:02:39 +00:00
Chris Lattner f20abac9bc Eliminate the distinction between "real" and "unreal" instructions 
llvm-svn: 11986
 2004-02-29 06:31:16 +00:00
Chris Lattner 44b1b22a2d int64_t -> int 
llvm-svn: 11977
 2004-02-29 05:07:02 +00:00
Alkis Evlogimenos e669caafe0 Rename member function to be consistent with the rest. 
llvm-svn: 11898
 2004-02-27 06:11:15 +00:00
Alkis Evlogimenos 941f9310bb 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 519e1e8c92 Fix crash caused by passing register 0 to 
MRegisterInfo::isPhysicalRegister().

llvm-svn: 11894
 2004-02-27 01:52:34 +00:00
Alkis Evlogimenos 5a3bab9402 Clear maps right after basic block is processed. 
llvm-svn: 11892
 2004-02-26 23:22:23 +00:00
Alkis Evlogimenos 61719d48d2 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 28a0885929 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 e62ddd405d 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 84b76c9be0 Great sparc renaming fallout IV: Sparc --> SparcV9. 
llvm-svn: 11844
 2004-02-25 22:09:36 +00:00
Alkis Evlogimenos a9f03fba9d Remove asssert since it is breaking cases that it shouldn't. 
llvm-svn: 11841
 2004-02-25 22:01:06 +00:00
Alkis Evlogimenos d8bace7f60 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 f5a393a133 Add an assertion 
llvm-svn: 11830
 2004-02-25 19:37:44 +00:00
Brian Gaeke 10a32da382 FunctionLiveVarInfo.h moved: include/llvm/CodeGen -> lib/Target/Sparc/LiveVar 
llvm-svn: 11804
 2004-02-24 19:46:00 +00:00
Alkis Evlogimenos 1dd872ce94 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 63aea0b6a5 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 8b571a64ac Make enum private as it is an implementation detail. 
llvm-svn: 11782
 2004-02-23 23:49:40 +00:00
Alkis Evlogimenos ab77b05d8c Remove '4Virt' from member function names as it is obvious. 
llvm-svn: 11781
 2004-02-23 23:47:10 +00:00
Alkis Evlogimenos c794a9060f 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 52de9e214c Add number of spilled registers statistic. 
llvm-svn: 11759
 2004-02-23 18:45:32 +00:00
Chris Lattner 91a7dc0a6e Fix bugs in finegrainification 
llvm-svn: 11758
 2004-02-23 18:40:08 +00:00
Chris Lattner 43df6c268b Finegrainify namespacification 
llvm-svn: 11757
 2004-02-23 18:38:20 +00:00
Alkis Evlogimenos b525d54045 Use MachineBasicBlock::getParent(). 
llvm-svn: 11756
 2004-02-23 18:36:38 +00:00
Alkis Evlogimenos d780ce6462 Remove implementation of default constructor as it is useless now. 
llvm-svn: 11755
 2004-02-23 18:28:35 +00:00
Alkis Evlogimenos af2de4848e 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 f83cb74b57 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 c31ff795d5 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 887b941fbb Some code cleanups from Chris 
llvm-svn: 11724
 2004-02-23 01:57:39 +00:00
Alkis Evlogimenos d42c2f24ec 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 4d7ad6713d Move LiveIntervals.h up to be the first included header 
llvm-svn: 11721
 2004-02-23 01:01:21 +00:00