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600d3088536b61d1b5b3ef825e4ff2b3ecce7708
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658 Commits

Author SHA1 Message Date
Chris Lattner
600d308853 Initial checkin of SelectionDAG implementation. This is still rough and 
unfinished

llvm-svn: 7717
 2003-08-11 14:57:33 +00:00
Vikram S. Adve
da92f366c7 Fix assertion in MachineInstr::substituteValue(). 
llvm-svn: 7675
 2003-08-07 15:01:48 +00:00
Chris Lattner
30e987470f Use a new local data structure instead of the MachineInstr::regsUsed set 
llvm-svn: 7621
 2003-08-05 22:11:13 +00:00
Chris Lattner
92f5fb598c Add a map 
llvm-svn: 7620
 2003-08-05 22:09:31 +00:00
Chris Lattner
e62a2a76e5 Minor cleanups 
llvm-svn: 7619
 2003-08-05 22:03:27 +00:00
Chris Lattner
b05d3508d6 Physical registers no longer live in the regsUsed set for each machine instr 
llvm-svn: 7618
 2003-08-05 21:55:58 +00:00
Chris Lattner
020b544cbc Do not insert physical regsiters into the regsUsed set 
llvm-svn: 7617
 2003-08-05 21:55:20 +00:00
Chris Lattner
cd4f4320b0 All callers of these methods actually wanted them to preserve the flags, 
so get rid of the def/use parameters that were getting passed in.

**** This now changes the semantics of these methods to preserve the flags,
     not clobber them!

llvm-svn: 7602
 2003-08-05 16:58:46 +00:00
Chris Lattner
92a199dca7 Fix bugs handling ESP in alloca references 
llvm-svn: 7591
 2003-08-05 04:13:58 +00:00
Chris Lattner
506fa6843e Revert previous change, and be really anal about what physical registers can do. 
llvm-svn: 7588
 2003-08-05 00:49:09 +00:00
Chris Lattner
4b637cc666 Don't bother calculating info unless its needed. May reduce number of stack slots created. 
llvm-svn: 7584
 2003-08-04 23:42:37 +00:00
Chris Lattner
815b85e3ba * Fix spelling of 'necessary' 
* Add a lot more DEBUG output, which is better structured than before
* Fix bug: Jello/2003-08-04-PhysRegLiveFailure.llx

llvm-svn: 7583
 2003-08-04 23:36:39 +00:00
Chris Lattner
41a894de77 Simplify code, eliminating the need for the X86 isVoid target instr flag 
llvm-svn: 7534
 2003-08-03 21:51:45 +00:00
Chris Lattner
74e4e9b44f Set debug types 
llvm-svn: 7533
 2003-08-03 21:47:31 +00:00
Chris Lattner
1789d23990 Remove using decl 
llvm-svn: 7531
 2003-08-03 20:24:29 +00:00
Chris Lattner
6cce665888 Wrap at 80 columns 
llvm-svn: 7503
 2003-08-03 13:49:03 +00:00
Chris Lattner
1007f033d4 Move DEBUG to Debug.h 
llvm-svn: 7497
 2003-08-01 22:21:34 +00:00
Vikram S. Adve
9143f1962e All constant-evaluation code now unified into 
TargetInstrInfo::ConvertConstantToIntType().

llvm-svn: 7390
 2003-07-29 19:50:12 +00:00
Vikram S. Adve
c9cb319bcb 1. Bug fix: Don't use branch operand reg. as temp. reg. when 
spilling values used by an instruction in the delay slot of the branch
   (which will eventually be moved before the branch).
2. Bug fix:  Delete the delay slot instr, not the branch instr, when
   moving delay slot instr. out!!!!
3. Move code to insert caller-saves moved here from SparcRegInfo:
   it is now machine-independent.

llvm-svn: 7389
 2003-07-29 19:49:21 +00:00
Vikram S. Adve
e2ef34a818 Add const version of getLiveRangeForValue(). 
llvm-svn: 7386
 2003-07-29 19:38:22 +00:00
Vikram S. Adve
91e75d87d2 Code to insert caller-saves moved here from SparcRegInfo: it is now 
machine-independent.
Fix problem with using branch operand reg. as temp. reg. when
spilling values used by an instruction in the delay slot of the branch
(which will eventually be moved before the branch).

llvm-svn: 7385
 2003-07-29 19:37:41 +00:00
Chris Lattner
0c8de4bfca Making this code const-correct would be a pain, so I'll hack it. 
llvm-svn: 7350
 2003-07-26 23:29:51 +00:00
Chris Lattner
414832fea6 Const correctness fixes 
llvm-svn: 7349
 2003-07-26 23:24:56 +00:00
Chris Lattner
0ed86aca71 Be const correct 
llvm-svn: 7348
 2003-07-26 23:23:41 +00:00
Chris Lattner
1316383267 Hrm, another necesary one :( 
llvm-svn: 7347
 2003-07-26 23:22:19 +00:00
Chris Lattner
824398ec6d Remove #include 
llvm-svn: 7342
 2003-07-26 23:01:04 +00:00
Chris Lattner
981e585021 Remove extraneous #includes 
llvm-svn: 7341
 2003-07-26 23:00:29 +00:00
Vikram S. Adve
45766ab682 (1) Change the way unused regs. are marked and found to consider regType 
info (since multiple reg types may share the same reg class).
(2) Remove machine-specific regalloc. methods that are no longer needed.
    In particular, arguments and return value from a call do not need
    machine-specific code for allocation.
(3) Rename TargetRegInfo::getRegType variants to avoid unintentional
    overloading when an include file is omitted.

llvm-svn: 7329
 2003-07-25 21:06:09 +00:00
Vikram S. Adve
abcd8d75ff Remove unused field. Change the way unused regs. are marked and 
found to consider regType info (since multiple reg types may share
the same reg class, e.g., single and double on Sparc).

llvm-svn: 7327
 2003-07-25 21:00:13 +00:00
Chris Lattner
79f22fe02f Remove unnecessary casts 
llvm-svn: 7250
 2003-07-23 15:17:51 +00:00
Chris Lattner
b976da9ecf Random cleanups 
llvm-svn: 7247
 2003-07-23 14:59:40 +00:00
Chris Lattner
0470412961 Remove using decl 
llvm-svn: 7246
 2003-07-23 14:55:59 +00:00
Vikram S. Adve
e2e50f2880 Values stored in CallArgsDescriptor cannot be const. 
llvm-svn: 7156
 2003-07-10 19:46:15 +00:00
Vikram S. Adve
abf331db03 isMarkedForSpill() should be const. 
llvm-svn: 7155
 2003-07-10 19:45:28 +00:00
Vikram S. Adve
689adb19b0 Change interface to MachineInstr::substituteValue to specify more precisely 
which args can be substituted: defsOnly, defsAndUses or usesOnly.

llvm-svn: 7154
 2003-07-10 19:45:07 +00:00
Vikram S. Adve
39587d6264 Print out all neighbors in interference graph, not just higher-numbered ones. 
llvm-svn: 7153
 2003-07-10 19:43:33 +00:00
Vikram S. Adve
5224b19deb Several fixes to handling of int CC register: 
(1) An int CC live range must be spilled if there are any interferences,
    even if no other "neighbour" in the interf. graph has been allocated
    that reg. yet.  This is actually true of any class with only one reg!

(2) SparcIntCCRegClass::colorIGNode sets the color even if the LR must
    be spilled so that the machine-independent spill code doesn't have to
    make the machine-dependent decision of which CC name to use based on
    operand type: %xcc or %icc.  (These are two halves of the same
register.)

(3) LR->isMarkedForSpill() is no longer the same as LR->hasColor().
    These should never have been the same, and this is necessary now for #2.

(4) All RDCCR and WRCCR instructions are directly generated with the
    phony number for %ccr so that EmitAssembly/EmitBinary doesn't have to
    deal with this.

llvm-svn: 7152
 2003-07-10 19:42:55 +00:00
Vikram S. Adve
3bb921e8df Choose register instead of immediate for ConstantExpr in ChooseRegOrImmed. 
llvm-svn: 7112
 2003-07-06 20:33:21 +00:00
Vikram S. Adve
1fce4cfa95 Minor beautification: fold a couple of lines of code. 
llvm-svn: 7054
 2003-07-02 01:24:00 +00:00
Vikram S. Adve
fa1dde06aa A def. operand of a machine instruction may be an ordinary Value*, 
not just an Instruction*, at least in one unfortunate case:
the first operand to the va_arg instruction.
Modify ValueToDefVecMap to map from Value*, not Instruction*.

llvm-svn: 7052
 2003-07-02 01:16:01 +00:00
John Criswell
3ef61afb76 Merged in autoconf branch. This provides configuration via the autoconf 
system.

llvm-svn: 7014
 2003-06-30 21:59:07 +00:00
Chris Lattner
52de05c6b3 Remove a ton of extraneous #includes 
llvm-svn: 6842
 2003-06-22 03:08:05 +00:00
Chris Lattner
55491774bb Actually, change it to use explicit new/delete, which is more likely to be 
optimized INTO an alloca

llvm-svn: 6727
 2003-06-16 22:29:09 +00:00
Chris Lattner
5b7e3cae42 Remove two using decls 
Remove usage of alloca

llvm-svn: 6725
 2003-06-16 22:18:28 +00:00
Brian Gaeke
7a719ed20c Isolate machine-dependent use of <alloca.h> in "Support/Alloca.h", 
so that we can easily change its use to be conditional on the result of
an autoconf test later.

llvm-svn: 6723
 2003-06-16 21:54:01 +00:00
John Criswell
cfac736363 Included assert.h so that the code compiles under newer versions of GCC. 
llvm-svn: 6682
 2003-06-11 14:01:36 +00:00
Guochun Shi
c40f66c928 add some comments 
add a function ModuloScheduling::dumpFinalSchedule() to print out final schedule

llvm-svn: 6677
 2003-06-10 20:04:30 +00:00
Guochun Shi
f6b88e55ed add an brief instruction what this pass is 
llvm-svn: 6676
 2003-06-10 20:03:39 +00:00
Guochun Shi
d2656536f5 a simple introduction to this pass 
llvm-svn: 6675
 2003-06-10 20:02:16 +00:00
Guochun Shi
9766f8c3a2 cleaned code 
add some comments

llvm-svn: 6674
 2003-06-10 19:09:00 +00:00