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5136 Commits

Author SHA1 Message Date
Chris Lattner
f6f9aafee4 Move this file to lib/VMCore 
llvm-svn: 10804
 2004-01-12 20:47:29 +00:00
Chris Lattner
abdd592bb1 Eliminate usage of the wierd overloaded operator constant folders 
llvm-svn: 10802
 2004-01-12 20:41:05 +00:00
Chris Lattner
b420886171 Eliminate ConstantFoldShiftInstruction reference 
llvm-svn: 10801
 2004-01-12 20:40:42 +00:00
Chris Lattner
2ff33e72ba Remove use of ConstantHandling itf 
llvm-svn: 10800
 2004-01-12 20:13:04 +00:00
Chris Lattner
7bfaf8bba8 Clean up #includes 
llvm-svn: 10799
 2004-01-12 19:56:36 +00:00
Chris Lattner
68c5d9e0d6 Fix bug in previous checkin 
llvm-svn: 10798
 2004-01-12 19:47:05 +00:00
Chris Lattner
7d2328f69c Eliminate use of ConstantHandling and ConstantExpr::getShift interfaces 
llvm-svn: 10796
 2004-01-12 19:35:11 +00:00
Chris Lattner
f4c2dcbe21 Add header file I accidentally removed in teh shuffle 
llvm-svn: 10795
 2004-01-12 19:15:20 +00:00
Chris Lattner
35771f4fd2 Fix out of date comment, remove use of ConstantExpr::getShift 
llvm-svn: 10794
 2004-01-12 19:12:58 +00:00
Chris Lattner
de401bbd4b Remove use of the ConstantHandling interfaces 
llvm-svn: 10793
 2004-01-12 19:12:50 +00:00
Chris Lattner
47e9056669 Remove use of ConstantExpr::getShift 
llvm-svn: 10792
 2004-01-12 19:10:58 +00:00
Chris Lattner
758109ce2e Don't use ConstantExpr::getShift anymore 
llvm-svn: 10791
 2004-01-12 19:08:43 +00:00
Chris Lattner
52759f5c5e Make ConstantExpr::get work for shifts as well 
llvm-svn: 10790
 2004-01-12 19:04:55 +00:00
Chris Lattner
23da5dbed6 Remove use of ConstantHandling 
llvm-svn: 10789
 2004-01-12 18:35:03 +00:00
Chris Lattner
4db788b6c5 Remove unneeded #include 
llvm-svn: 10788
 2004-01-12 18:33:54 +00:00
Chris Lattner
7242f6af5f Move llvm::ConstantFoldInstruction from VMCore to here, next to ConstantFoldTerminator 
llvm-svn: 10785
 2004-01-12 18:25:22 +00:00
Chris Lattner
e6b9c1001b Move llvm::ConstantFoldInstruction from here to Transforms/Utils 
llvm-svn: 10784
 2004-01-12 18:25:03 +00:00
Chris Lattner
a5101c4743 Remove uses of ConstantHandling itf 
llvm-svn: 10783
 2004-01-12 18:12:44 +00:00
Chris Lattner
41ac9c82f9 Eliminate use of ConstantHandling itf 
llvm-svn: 10782
 2004-01-12 18:08:18 +00:00
Chris Lattner
c290310e9f Remove use of ConstantHandling itf 
llvm-svn: 10781
 2004-01-12 18:02:15 +00:00
Chris Lattner
a2612e417c Eliminate use of ConstantHandling itf 
llvm-svn: 10780
 2004-01-12 17:57:32 +00:00
Chris Lattner
5a9246fb56 Use constantexprs for casts. Eliminate use of the ConstantHandling interfaces 
llvm-svn: 10779
 2004-01-12 17:43:40 +00:00
Chris Lattner
8e3cb82d12 Fix fairly severe bug in my last checking where we treated all unfoldable 
constants as being "true" when evaluating branches.  This was introduced
because we now create constantexprs for the constants instead of failing the
fold.

llvm-svn: 10778
 2004-01-12 17:40:36 +00:00
Alkis Evlogimenos
44747c570a Output mov %REG = 0 instead of xor %REG, %REG, %REG to clear a 
register so that LiveVariable analysis is not confused.

llvm-svn: 10773
 2004-01-12 07:22:45 +00:00
Chris Lattner
a523d45c39 * Implement minor performance optimization for the getelementptr case 
* Implement SCCP of load instructions, implementing Transforms/SCCP/loadtest.ll
  This allows us to fold expressions like "foo"[2], even if the pointer is only
  a conditional constant.

llvm-svn: 10767
 2004-01-12 04:29:41 +00:00
Chris Lattner
cb0fc1ce41 Do not hack on volatile loads. I'm not sure what the point of a volatile load 
from constant memory is, but lets not take chances.

llvm-svn: 10765
 2004-01-12 04:13:56 +00:00
Chris Lattner
1269b71517 Implement SCCP/phitest.ll 
llvm-svn: 10763
 2004-01-12 03:57:30 +00:00
Chris Lattner
40c667e0bc Implement Transforms/ScalarRepl/phinodepromote.ll, which is an important 
case that the C/C++ front-end generates.

llvm-svn: 10761
 2004-01-12 01:18:32 +00:00
Chris Lattner
a4f199b80c Implement: Assembler/2004-01-11-getelementptrfolding.llx 
llvm-svn: 10759
 2004-01-11 23:56:33 +00:00
Chris Lattner
1e781891a5 Urg, remove testing code. 
llvm-svn: 10757
 2004-01-11 23:30:03 +00:00
Chris Lattner
7fb38d32a0 Fix a regression that I introduced yesterday. :( 
llvm-svn: 10756
 2004-01-11 23:29:26 +00:00
Alkis Evlogimenos
ef7c077e63 Make LiveVariables::HandlePhysRegUse and 
LiveVariables::HandlePhysRegDef private they use information that is
not in memory when LiveVariables finishes the analysis.

Also update the TwoAddressInstructionPass to not use this interface.

llvm-svn: 10755
 2004-01-11 09:18:45 +00:00
Chris Lattner
734c9747df Check in two changes: 
The first change (which is disabled) compactifies all of the function constant
pools into the global constant pool, in an attempt to reduce the amount of
duplication and overhead.  Unfortunately, as the comment indicates, this is
not yet a win, so it is disabled.

The second change sorts the typeid's so that those types that can be used
by instructions in the program appear earlier in the table than those that
cannot (such as structures and arrays).  This causes the instructions to
be able to use the dense encoding more often, saving about 5K on 254.gap.
This is only a .65% savings though, unfortunately. :(

llvm-svn: 10754
 2004-01-10 23:46:13 +00:00
Chris Lattner
12a46c4d00 Hrm, another minor cleanup, which I missed before 
llvm-svn: 10753
 2004-01-10 21:42:24 +00:00
Chris Lattner
95db39508d Minor cleanup 
llvm-svn: 10752
 2004-01-10 21:40:29 +00:00
Chris Lattner
06e5894c37 Update obsolete comments 
Fix iterator invalidation problems which was causing -mstrip to miss some
entries, and read free'd memory.  This shrinks the symbol table of 254.gap
from 333 to 284 bytes!  :)

llvm-svn: 10751
 2004-01-10 21:36:49 +00:00
Chris Lattner
accd21042c Do not bother to emit a BytecodeBlock for an empty symbol table. This commonly 
occurs when the symbol table for a module has been stripped, making all of the
function local symbols go away.

This saves 6728 bytes in the stripped bytecode file of 254.gap (which obviously
has 841 functions), which isn't a ton, but helps and was easy.

llvm-svn: 10750
 2004-01-10 19:56:59 +00:00
Chris Lattner
4771545c89 Remove use of llvm/CodeGen/InstrSelection.h 
llvm-svn: 10749
 2004-01-10 19:16:26 +00:00
Chris Lattner
960a22a097 Remove config wrapper around <cerrno> 
llvm-svn: 10747
 2004-01-10 19:15:14 +00:00
Chris Lattner
7318f16390 Err, we don't need Config/*.h files for things that are standard C++ 
llvm-svn: 10742
 2004-01-10 19:10:01 +00:00
Chris Lattner
e069cb1c80 minor comment tweaks 
llvm-svn: 10741
 2004-01-10 19:07:06 +00:00
Chris Lattner
a6ecd35eab * finegrainify namespacification of ArchiveReader.cpp 
* Refactor reader stuff out of include/llvm/Bytecode/Primitives.h.  This is
  internal implementation details for the reader, not public interfaces!

llvm-svn: 10739
 2004-01-10 19:00:15 +00:00
Chris Lattner
b9c0efb378 Refactor writer stuff out of include/llvm/Bytecode/Primitives.h. This is 
internal implementation details for the writer, not public interfaces!

llvm-svn: 10738
 2004-01-10 18:56:59 +00:00
Chris Lattner
231965667f Finegrainify namespacification 
llvm-svn: 10737
 2004-01-10 18:49:43 +00:00
Chris Lattner
d2ef2c91e8 Live var is now in lib/Target/Sparc 
llvm-svn: 10735
 2004-01-09 18:16:20 +00:00
Chris Lattner
103dabde37 Move sparc-specific code into lib/Target/Sparc 
llvm-svn: 10734
 2004-01-09 18:15:56 +00:00
Chris Lattner
aa91fab38d Move sparc-specific livevar code into lib/Target/Sparc 
llvm-svn: 10733
 2004-01-09 18:15:24 +00:00
Chris Lattner
5bbe234eab Fix more incestuous #includage. 
llvm-svn: 10732
 2004-01-09 16:17:09 +00:00
Chris Lattner
1eeb1b1c04 Finegrainify namespacification. 
This should get hunked over to the Sparc backend, along with
MachineCodeForInstruction and a bunch of files in include/llvm/Codegen,
but those battles will have to wait for a later time.

llvm-svn: 10731
 2004-01-09 06:30:18 +00:00
Chris Lattner
ebe5eeb151 Move InstrSelection into lib/Target/Sparc, as it's sparc specific 
llvm-svn: 10730
 2004-01-09 06:24:06 +00:00
Chris Lattner
3a7b85a77b Move InstrSelection into lib/Target/Sparc, as it's sparc specific. This 
makes the incestuous #include'ing of sparc internal headers much less
disturbing.  :)

llvm-svn: 10729
 2004-01-09 06:22:34 +00:00
Chris Lattner
9bd7a783b9 Move lib/Codegen/RegAlloc into lib/Target/Sparc, as it is sparc specific 
llvm-svn: 10728
 2004-01-09 06:17:12 +00:00
Chris Lattner
031bd7e9f3 Finegrainify namespacification 
llvm-svn: 10727
 2004-01-09 06:12:26 +00:00
Chris Lattner
f8c085f3f1 Remove dependence on structure index type. s/MT/FT 
llvm-svn: 10726
 2004-01-09 06:02:51 +00:00
Chris Lattner
d33cc684b5 Finegrainify namespacification 
llvm-svn: 10725
 2004-01-09 06:02:20 +00:00
Chris Lattner
a607777821 Finegrainify namespacification 
add flags for PR82

llvm-svn: 10724
 2004-01-09 05:53:38 +00:00
Chris Lattner
605b8b34fa Inching towards fixing PR82 
llvm-svn: 10722
 2004-01-09 05:44:50 +00:00
Chris Lattner
6e130238f7 Inching our way towards fixing PR82 
llvm-svn: 10721
 2004-01-09 05:42:34 +00:00
Chris Lattner
1736f44b1d Improve encapsulation in the Loop and LoopInfo classes by eliminating the 
getSubLoops/getTopLevelLoops methods, replacing them with iterator-based
accessors.

llvm-svn: 10714
 2004-01-08 00:09:44 +00:00
Alkis Evlogimenos
cbe72d0381 Add a separate list of fixed intervals. This improves the running time 
of the register allocator as follows:

       before   after
mesa   2.3790  1.5994
vpr    2.6008  1.2078
gcc    1.9840  0.5273
mcf    0.2569  0.0470
eon    1.8468  1.4359
twolf  0.9475  0.2004
burg   1.6807  1.3300
lambda 1.2191  0.3764

Speedups range anyware from 30% to over 400% :-)

llvm-svn: 10712
 2004-01-07 09:20:58 +00:00
Alkis Evlogimenos
7bba96c90b Minor cleanups. 
llvm-svn: 10711
 2004-01-07 05:31:12 +00:00
Alkis Evlogimenos
752173bede Remove declared but undefined method. 
llvm-svn: 10710
 2004-01-07 02:29:33 +00:00
Alkis Evlogimenos
8aea74016b Change implementation of LiveIntervals::overlap(). This results in a 
30-50% decrease in running time of the linear scan register allocator.

llvm-svn: 10707
 2004-01-07 01:45:58 +00:00
Alkis Evlogimenos
ac49a51bac Pass std::string to constructor as const reference to avoid multiple 
copies.

llvm-svn: 10705
 2004-01-06 09:16:02 +00:00
Chris Lattner
8b4be63e6e Add support for new intrinsic 
llvm-svn: 10701
 2004-01-06 05:33:02 +00:00
Brian Gaeke
25e5426f40 Fix some typos and copy-and-paste-os in comments, and doxygenify. 
Add <csignal> so that this file compiles on Solaris.

llvm-svn: 10697
 2004-01-05 17:22:52 +00:00
Alkis Evlogimenos
63f378bb39 Remove simple coalescing. 
llvm-svn: 10695
 2004-01-05 08:24:57 +00:00
Chris Lattner
d3277ccf56 /me slaps forehead 
llvm-svn: 10693
 2004-01-05 05:45:25 +00:00
Chris Lattner
bd827343af fix warning 
llvm-svn: 10692
 2004-01-05 05:42:17 +00:00
Chris Lattner
6093fdd5e3 Add VMCore and code generator support for debugging intrinsics. By default 
code generators completely ignore them.

llvm-svn: 10691
 2004-01-05 05:36:30 +00:00
Chris Lattner
4169ceab8c Add new dir 
llvm-svn: 10686
 2004-01-05 05:25:59 +00:00
Chris Lattner
9239f785ec Initial checkin of the LLVM source-level debugger. This is still not finished, 
by any stretch of the imagination, but it is pretty cool and works :)

llvm-svn: 10685
 2004-01-05 05:25:10 +00:00
Alkis Evlogimenos
496be157cc Currently we cannot handle two-address instructions of the form: 
A = B op C where A == C, but this cannot really occur in practice
because of SSA form. Add an assert to check that just to be safe.

llvm-svn: 10682
 2004-01-05 02:25:45 +00:00
Alkis Evlogimenos
e74dd531f7 Update description. 
llvm-svn: 10681
 2004-01-04 23:09:24 +00:00
John Criswell
4a673d0bf9 Not all platforms supports sighandler_t, so I changed it to use the older 
return value from signal() (which should be the same type; it's just not
typedef'd).
This fixes the build on Solaris.

llvm-svn: 10675
 2004-01-01 15:14:28 +00:00
Chris Lattner
46fdc8ce43 Add new ExecutionEngine::getGlobalValueAtAddress method, which can efficiently 
turn a memory address back into the LLVM global object that starts at that
address.  Note that this won't cause any additional datastructures to be built
for clients of the EE that don't need this information.

Also modified some code to not access the GlobalAddress map directly.

llvm-svn: 10674
 2003-12-31 20:21:04 +00:00
Chris Lattner
a00f627c1d * Add a new helper progress method 
* Make sure that the user sees the 100% mark
* Don't bother printing out X.0%, just print out X%

llvm-svn: 10672
 2003-12-31 10:20:38 +00:00
Chris Lattner
cfd07c0971 Add some comments, add new getGlobalVariable method 
llvm-svn: 10671
 2003-12-31 08:43:01 +00:00
Chris Lattner
f651ccde40 Add missing #include 
llvm-svn: 10669
 2003-12-31 07:31:10 +00:00
Chris Lattner
3f6af8506e * Make Module::getTypeName const 
* Add new Module::getTypeByName method
* Group methods in Module.cpp better

llvm-svn: 10668
 2003-12-31 07:09:33 +00:00
Chris Lattner
24a9176b66 Make the lookup method const. 
llvm-svn: 10667
 2003-12-31 07:08:19 +00:00
Chris Lattner
d6c0c685c1 Add new function 
llvm-svn: 10664
 2003-12-31 06:15:37 +00:00
Chris Lattner
ef4810619d New class, useful for command-line interactive programs. 
llvm-svn: 10662
 2003-12-31 05:40:02 +00:00
Chris Lattner
df22b39818 Fix PR198 
llvm-svn: 10659
 2003-12-31 03:19:37 +00:00
Chris Lattner
726d13c4d1 Add comments 
llvm-svn: 10658
 2003-12-31 02:50:02 +00:00
Chris Lattner
fe95ceadaf Minor code cleanups. The only bugfix is to the UR_DEBUG stuff which didn't 
compile when enabled.

llvm-svn: 10657
 2003-12-31 02:18:11 +00:00
Chris Lattner
5f7770c06b remove some useless #includes 
llvm-svn: 10654
 2003-12-30 07:55:21 +00:00
Chris Lattner
2827a074c2 Use new getFileSize function instead of sys/stat.h directly. 
llvm-svn: 10650
 2003-12-30 07:40:35 +00:00
Chris Lattner
754e73cd6c Add new method 
llvm-svn: 10649
 2003-12-30 07:36:14 +00:00
Chris Lattner
412295aeaa Further revisions of the FDHandle idea. In this version we use ownership 
semantics that are the same as those used by std::auto_ptr.  This allows
copying of FDHandle's, but copying transfers ownership.

llvm-svn: 10646
 2003-12-30 02:45:16 +00:00
Chris Lattner
9024121340 Add trivial exception specs to produce better code since the methods cannot 
be inlined.

llvm-svn: 10643
 2003-12-29 21:43:58 +00:00
Chris Lattner
6317315a2f Factor FDHandle out of the bytecode reader into the FileUtilities.h support 
routines.

llvm-svn: 10642
 2003-12-29 21:35:05 +00:00
Chris Lattner
2bfa334e64 implement new getToken function 
llvm-svn: 10639
 2003-12-29 05:07:02 +00:00
Chris Lattner
c37577eb9f Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering 
implementation from the TargetMachine directly.

llvm-svn: 10636
 2003-12-28 21:23:38 +00:00
Alkis Evlogimenos
8157eb7140 Reserve ECX and EDI instead of EBX and EDI. Since EBX is a callee 
saved register it has a longer free range than ECX (which is defined
every time there is a fnuction call) which makes ECX a better register
to reserve.

llvm-svn: 10635
 2003-12-28 18:03:52 +00:00
Alkis Evlogimenos
fc01aac4d8 Add coalescing to register allocator. A hint is added to each interval 
which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.

llvm-svn: 10634
 2003-12-28 17:58:18 +00:00
Alkis Evlogimenos
24b3159dfc Add TargetInstrInfo::isMoveInstr() to support coalescing in register 
allocation.

llvm-svn: 10633
 2003-12-28 17:35:08 +00:00
Chris Lattner
c487970d6b Whoops, don't try to lower non intrinsic calls 
llvm-svn: 10632
 2003-12-28 09:53:23 +00:00
Chris Lattner
1791047661 implement support for the intrinsic lowering functionality 
llvm-svn: 10629
 2003-12-28 09:47:19 +00:00
Chris Lattner
58cbeaed27 Eliminate some code that is not needed now that we have the intrinsic lowering pass 
llvm-svn: 10628
 2003-12-28 09:46:33 +00:00
Chris Lattner
44f1ab7c2f Pass around IntrinsicLowering instances as appropriate. 
Reimplement the Interpreters implementation of va_* to be more direct.

llvm-svn: 10627
 2003-12-28 09:44:37 +00:00
Chris Lattner
66fb20d2d3 Use the intrinsic lowering functionality 
llvm-svn: 10626
 2003-12-28 09:43:35 +00:00
Chris Lattner
068ac4236d Move into the VMCore library 
llvm-svn: 10623
 2003-12-28 08:30:20 +00:00
Chris Lattner
57ff7c242c Implement the default implementation of the intrinsic lowering class 
llvm-svn: 10621
 2003-12-28 08:19:41 +00:00
Chris Lattner
a8c942c188 finegrainify namespacification 
minor cleanups

llvm-svn: 10619
 2003-12-28 07:59:53 +00:00
Chris Lattner
428c27dfbf Merging constants can cause further room for improvement. Iterate until 
we converge

llvm-svn: 10618
 2003-12-28 07:19:08 +00:00
Chris Lattner
8caf13292a Add a note 
llvm-svn: 10617
 2003-12-28 04:03:49 +00:00
Chris Lattner
3593bb9dd6 Factor code out of LLI 
llvm-svn: 10616
 2003-12-26 06:50:30 +00:00
Chris Lattner
5ad07a3fbf minor cleanups 
llvm-svn: 10612
 2003-12-26 06:16:00 +00:00
Chris Lattner
ddcbddf9e9 No longer run atExit functions from run() 
rename run to runFunction
Genericize the runFunction code a little bit, though it still stinks

llvm-svn: 10610
 2003-12-26 06:13:47 +00:00
Chris Lattner
d7d8336d73 No longer run atExit functions from run() 
rename run to runFunction

llvm-svn: 10609
 2003-12-26 06:13:05 +00:00
Alkis Evlogimenos
597e2f3501 Improve debugging output when choosing a register to spill. 
llvm-svn: 10604
 2003-12-24 18:53:31 +00:00
Alkis Evlogimenos
2c947a4fa0 Do a separate pass to compute spill weights because doing it inline 
with live intervals was missing registers that were used before they
were defined (in the arbitrary order live intervals numbers
instructions).

llvm-svn: 10603
 2003-12-24 15:44:53 +00:00
Chris Lattner
c09a6f0621 Right, fix the problem with invoke instructions, not just call instructions 
llvm-svn: 10599
 2003-12-23 22:18:36 +00:00
Chris Lattner
c1dd02538a Do not delete the type holder until after the call instruction has been 
constructed!

llvm-svn: 10598
 2003-12-23 20:39:17 +00:00
Chris Lattner
defd9ccd73 Minor cleanups, plug a minor memory leak 
llvm-svn: 10596
 2003-12-23 20:05:15 +00:00
Alkis Evlogimenos
ca57dd1089 Change the way free regusters are computed and perform better 
allocation in the presence of preallocated intervals.

llvm-svn: 10595
 2003-12-23 18:00:33 +00:00
Chris Lattner
099e1f16b8 rename ClassifyExpression -> ClassifyExpr 
llvm-svn: 10592
 2003-12-23 08:04:08 +00:00
Chris Lattner
fefdb67375 More minor non-functional changes. This now computes the exit condition, though 
it doesn't do anything with it.

llvm-svn: 10590
 2003-12-23 07:47:09 +00:00
Chris Lattner
77fe880dcf Remove extraneous #include 
finegrainify namespacification

llvm-svn: 10589
 2003-12-23 07:43:38 +00:00
Chris Lattner
5780f54596 Finegrainify namespacification 
llvm-svn: 10588
 2003-12-23 06:44:41 +00:00
Chris Lattner
30fa61ca6c Fix memory corruption bug PR193 
llvm-svn: 10586
 2003-12-22 23:49:36 +00:00
John Criswell
8740fbd052 Reverted back to revision 1.11. The previous fix doesn't really fix 
anything; it just causes the bug to go dormant.

llvm-svn: 10585
 2003-12-22 16:22:49 +00:00
Alkis Evlogimenos
10de430568 Fix crash when compiling twolf. 
llvm-svn: 10584
 2003-12-22 13:54:29 +00:00
Chris Lattner
8ec8b9c28a Don't mind me, I'm just refactoring away. This patch makes room for LFTR, but 
contains no functionality changes.

llvm-svn: 10583
 2003-12-22 09:53:29 +00:00
Chris Lattner
b0c30fd90f finegrainify namespacification 
Implement indvar analysis of getelementptr and sub expressions

llvm-svn: 10582
 2003-12-22 05:26:29 +00:00
Chris Lattner
1f0b2be06c Implement IndVarsSimplify/pointer-indvars.ll, transforming pointer 
arithmetic into "array subscripts"

llvm-svn: 10580
 2003-12-22 05:02:01 +00:00
Chris Lattner
be3440d4e3 finegrainify namespacification 
add new getIntPtrType() method

llvm-svn: 10579
 2003-12-22 05:01:15 +00:00
Chris Lattner
dfe3e25d89 Fix PR194 
llvm-svn: 10573
 2003-12-22 03:58:44 +00:00
Misha Brukman
2653aa076a Really release memory used by functions. Patch by Chris. 
llvm-svn: 10572
 2003-12-22 03:47:58 +00:00
Alkis Evlogimenos
7062ccbc85 Remove verifyIntervals() since it doesn't actually work right now. 
llvm-svn: 10570
 2003-12-21 20:41:26 +00:00
Alkis Evlogimenos
4401d0a7a3 Change weight into a float so that we can take into account the 
nesting level when computing it. Right now the allocator uses:

    w = sum_over_defs_uses( 10 ^ nesting level );

llvm-svn: 10569
 2003-12-21 20:19:10 +00:00
Alkis Evlogimenos
0e892b6337 Move FP_REG_KILL closer to the return instruction. 
llvm-svn: 10567
 2003-12-21 16:47:43 +00:00
Alkis Evlogimenos
4f98b79ef0 Add support for inactive intervals. This effectively reuses registers 
for live ranges that fall into assigned registers' holes.

llvm-svn: 10566
 2003-12-21 05:43:40 +00:00
John Criswell
80daeb4cdb Fix PR#193. 
Modified ReadArchiveBuffer() so that it dynamically allocates the
std::string object used to hold the bytecode object file's name.  This is
necessary because it is passed by reference to the new Module that is
allocated to represent the bytecode object, and previously we were
using a std::string that disappeared on function exit.

llvm-svn: 10565
 2003-12-20 22:37:29 +00:00
Alkis Evlogimenos
7b61337ce6 Move FP_REG_KILL closer to the actual branch instruction. 
llvm-svn: 10563
 2003-12-20 17:28:15 +00:00
Alkis Evlogimenos
41bd8284e3 Remove floating point killer pass. This is now implemented in the 
instruction selector by adding a new pseudo-instruction
FP_REG_KILL. This instruction implicitly defines all x86 fp registers
and is a terminator so that passes which add machine code at the end
of basic blocks (like phi elimination) do not add instructions between
it and the branch or return instruction.

llvm-svn: 10562
 2003-12-20 16:22:59 +00:00
Chris Lattner
461a62626a Add a new target-independent machine code freeing pass 
llvm-svn: 10560
 2003-12-20 10:20:58 +00:00
Chris Lattner
ef1bfa35d0 Finally, _actually delete the machine code_ for a function, after it has 
been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559
 2003-12-20 10:20:19 +00:00
Chris Lattner
013d4bee41 This should not be needed anymore 
llvm-svn: 10558
 2003-12-20 10:19:18 +00:00
Chris Lattner
ea52ffdb10 Fix memory leak in the stackifier, due to the machinebasicblocks not holding 
instructions on an ilist

llvm-svn: 10556
 2003-12-20 10:12:17 +00:00
Chris Lattner
544d512d4f Finegrainify namespacification 
Minor cleanups to killer pass

llvm-svn: 10555
 2003-12-20 09:58:55 +00:00
Chris Lattner
5099050009 Hoist some sparc specific code into the sparc target 
llvm-svn: 10554
 2003-12-20 09:17:40 +00:00
Chris Lattner
d476049d19 * Finegrainify namespacification 
* Move sparc specific code out of generic code
* Eliminate the getOffset() method which made INVALID_FRAME_OFFSET
  necessary, which made pulling in MAX_INT as a sentinal necessary.

llvm-svn: 10553
 2003-12-20 09:17:07 +00:00
Chris Lattner
edda0e5d4f Implement PR135, lazy emission of global variables 
llvm-svn: 10549
 2003-12-20 03:36:47 +00:00
Chris Lattner
214005e5fb Simple refactorings to prepare for lazy global emission 
Also, add a stat for the number of globals emitted

llvm-svn: 10547
 2003-12-20 02:45:37 +00:00
Chris Lattner
d3676d0774 A minor cleanup for better encapsulation 
llvm-svn: 10545
 2003-12-20 02:03:14 +00:00
Chris Lattner
cd8f92bc62 Cleanup the JIT as per PR176. This renames the VM class to JIT, and merges the 
VM.cpp and JIT.cpp files into JIT.cpp.  This also splits some nasty code out
into TargetSelect.cpp so that people hopefully won't notice it.  :)

llvm-svn: 10544
 2003-12-20 01:46:27 +00:00
Chris Lattner
32658dbaf3 Update for changes in the JIT 
llvm-svn: 10543
 2003-12-20 01:45:17 +00:00
Chris Lattner
1cb1efedb3 Rip JIT specific stuff out of TargetMachine, as per PR176 
llvm-svn: 10542
 2003-12-20 01:22:19 +00:00