Commit Graph

5184 Commits

Author SHA1 Message Date
Brian Gaeke 16d4009a1b Include TargetRegInfo.h and declare SparcTargetMachine forward, to make this
header more easily includable.

llvm-svn: 10880
2004-01-15 18:17:07 +00:00
Brian Gaeke 361c004b88 Make this assertion more self-explanatory.
llvm-svn: 10879
2004-01-15 18:15:58 +00:00
Chris Lattner 394fc96f39 Fix PR73: bytecode format inconsistent
llvm-svn: 10876
2004-01-15 17:55:09 +00:00
Chris Lattner 7c73b19bb8 Fix PR73
llvm-svn: 10875
2004-01-15 17:55:01 +00:00
Chris Lattner f63a4ecc0b Fix brokenness in my last checking
llvm-svn: 10874
2004-01-15 16:56:15 +00:00
Chris Lattner faaf32db19 Change all of the bytecode reader primitives to throw exceptions instead of
returning error codes.  Because they don't return an error code, they can
return the value read, which simplifies the code and makes the reader more
efficient (yaay!).

Also eliminate the special case code for little endian machines.

llvm-svn: 10871
2004-01-15 06:13:09 +00:00
Chris Lattner 1af644d9d6 Remove the optimization that depends on ENDIAN_LITTLE: it's not worth it.
llvm-svn: 10870
2004-01-15 06:11:30 +00:00
Chris Lattner 6229fbf328 The new bytecode format supports emitting strings a special case. This is
intended to save size (and does on small programs), but on big programs it
actually increases the size of the program slightly.  The deal is that many
functions end up using the characters that the string contained, and the
characters are no longer in the global constant table, so they have to be
emitted in function specific constant pools.

This pessimization will be fixed in subsequent patches.

llvm-svn: 10864
2004-01-14 23:36:54 +00:00
Chris Lattner 394afe0f90 Version 1.2 now supports encoding strings as a special case, to avoid having
to emit all of those sbyte constants.

llvm-svn: 10863
2004-01-14 23:35:21 +00:00
Chris Lattner de36304453 When emitting bytecode, handle strings specially. Do not add the characters
that make up the strings to the slotcalculator.

llvm-svn: 10862
2004-01-14 23:34:39 +00:00
Chris Lattner c6098c06d5 Like output_data, it's obvious that input_data was only used with 1 character
data.

llvm-svn: 10861
2004-01-14 23:03:22 +00:00
Chris Lattner 369dbe2a09 "fix" a nasty race condition
llvm-svn: 10860
2004-01-14 21:18:03 +00:00
Chris Lattner 55ca34ab8a Fix some exception safety problems
llvm-svn: 10859
2004-01-14 20:58:17 +00:00
Chris Lattner 2d6902b4b6 Hrm, apparently I missed lowering this intrinsic. :(
llvm-svn: 10858
2004-01-14 20:41:29 +00:00
Chris Lattner eeb4ffd8ea It is obvious that this has never been used for outputing more than a single
byte, it's totally endian incorrect!

llvm-svn: 10857
2004-01-14 18:50:28 +00:00
Chris Lattner 29f9590e82 Be const correct
llvm-svn: 10856
2004-01-14 18:41:38 +00:00
Chris Lattner e8701f690f Fix bug in previous checkin: Demorgan would be ashamed of me, I need to
lay off the crack.

llvm-svn: 10855
2004-01-14 17:51:53 +00:00
Chris Lattner 93cd755c05 Eliminate the isStringCompatible function, using ConstantArray::isString.
It's not clear why the code was looking for signed chars < 0, but it can't
matter to the assembler anyway, so the check goes away.  This also fixes
compatibility with arrays of [us]byte that have constantexprs in them.

Also slightly restructure some code to be cleaner.

llvm-svn: 10854
2004-01-14 17:15:17 +00:00
Chris Lattner ac2b198ec5 Eliminate the isStringCompatible function, using ConstantArray::isString.
It's not clear why the code was looking for signed chars < 0, but it can't
matter to the assembler anyway, so the check goes away.

llvm-svn: 10853
2004-01-14 17:14:42 +00:00
Chris Lattner 3dc08ebb5f Use new method
llvm-svn: 10852
2004-01-14 17:07:46 +00:00
Chris Lattner e8dfccaabd Implement ConstantArray::isString
llvm-svn: 10851
2004-01-14 17:06:38 +00:00
Chris Lattner 9a38c78fe6 Ok, I can't handle it. This is a temporary checkin of a ton of statistics that
i'm using in my work to reduce the bytecode file sizes.  These will eventually
be removed.

llvm-svn: 10849
2004-01-14 16:54:21 +00:00
Chris Lattner 893b184db0 Remove support for the pre-1.0 bytecode version #1. This will become
the bytecode revision generated by LLVM 1.2.

llvm-svn: 10848
2004-01-14 16:44:44 +00:00
Alkis Evlogimenos 0680572553 Properly update #intervals statistic.
llvm-svn: 10847
2004-01-14 10:44:29 +00:00
Chris Lattner 1f7942fe7d Fix InstCombine/2004-01-13-InstCombineInvokePHI.ll, which also fixes lots
of C++ programs in Shootout-C++, including lists1 and moments, etc

llvm-svn: 10845
2004-01-14 06:06:08 +00:00
Brian Gaeke 1c0133ffd9 Don't pass anything to the IntrinsicLowering class that is not_intrinsic,
because that makes it abort. Also, fix a typo in a comment.

This checkin brought to you by the "It only takes about 30 seconds to run
ENABLE_LLI tests on Shootout on zion, even if they all dump core" fund.

llvm-svn: 10844
2004-01-14 06:02:53 +00:00
Chris Lattner 02062823f7 Fix check. PHI nodes must be handled specially, of course.
llvm-svn: 10842
2004-01-14 05:42:52 +00:00
Chris Lattner ec5089a223 Tighten up verifier checks. The result of an invoke instruction only
dominates the normal destination, not the exceptional dest (ie, the result
of a call is undefined on an exception)

llvm-svn: 10841
2004-01-14 04:25:59 +00:00
Chris Lattner 1f018c2d01 Toggle sense of flag
llvm-svn: 10838
2004-01-14 02:50:16 +00:00
Chris Lattner 6089bb1f19 The only clients of the slot calculator are now the asmwriter and bcwriter.
Since this really only makes sense for these two, change hte instance variable
to reflect whether we are writing a bytecode file or not.  This makes it
reasonable to add bcwriter specific stuff to it as necessary.

llvm-svn: 10837
2004-01-14 02:49:34 +00:00
Alkis Evlogimenos 2615c98042 Fix bug in LiveIntervals::Interval::overlaps and
LiveIntervals::Interval::liveAt. Both were considering the live ranges
closed in the end, when they are actually open.

llvm-svn: 10835
2004-01-14 00:20:09 +00:00
Alkis Evlogimenos a0865cec3f Improve debugging output.
llvm-svn: 10834
2004-01-14 00:09:36 +00:00
Alkis Evlogimenos 0431621429 Fix miscomputation of live intervals. The catch is that registers can
be dead at the defining instruction but can only be killed in
subsequent ones.

llvm-svn: 10833
2004-01-13 22:26:14 +00:00
Alkis Evlogimenos 1a01c80f1b Remove allocatable registers vector. It is already provided by
LiveVariables.

llvm-svn: 10830
2004-01-13 22:10:43 +00:00
Alkis Evlogimenos 13e8623a3f Cleanup debugging output.
llvm-svn: 10824
2004-01-13 21:53:20 +00:00
Chris Lattner 66f33ff6c2 Finegrainify namespacification
Using the SlotCalculator is total overkill for this file, a simple map
will suffice.  Why doesn't this use the NameMangler interface?

llvm-svn: 10823
2004-01-13 21:27:59 +00:00
Alkis Evlogimenos 33f9cb1da7 Fix output of live intervals to show correctly its closed, open
ranges, i.e. [a,b)

llvm-svn: 10822
2004-01-13 21:17:47 +00:00
Alkis Evlogimenos 9d0c3d21c8 Remove unneeded check (with the recent change in live variables a use
of a physical register is always dominated by a def).

llvm-svn: 10821
2004-01-13 21:16:25 +00:00
Alkis Evlogimenos 65bc990bda Indentation and whitespace cleanups.
llvm-svn: 10820
2004-01-13 20:42:08 +00:00
Alkis Evlogimenos 6b1ec75da9 Fix bug introduced by previous commit: check if fixed intervals
overlap before adding their spill weight.

llvm-svn: 10819
2004-01-13 20:37:01 +00:00
Brian Gaeke dbd9c33e5e Remove dump-input option.
Make addPassesToEmitAssembly() look slightly more like addPassesToJITCompile().

llvm-svn: 10818
2004-01-13 19:26:21 +00:00
Alkis Evlogimenos ebbd66c042 Correctly compute live variable information for physical registers
when an implicitely defined register is later used by an alias. For example:

         call foo
         %reg1024 = mov %AL

The call implicitely defines EAX but only AL is used. Before this fix
no information was available on AL. Now EAX and all its aliases except
AL get defined and die at the call instruction whereas AL lives to be
killed by the assignment.

llvm-svn: 10813
2004-01-13 06:24:30 +00:00
Chris Lattner 061da2f059 Implement a bunch of symbolic constant folding opportunities. This implements
testcase test/Regression/Assembler/ConstantExprFold.llx

Note that these kinds of things only rarely show up in source code, but are
exceedingly common in the intermediate stages of algorithms like SCCP.  By
folding things (especially relational operators) that use symbolic constants,
we are able to speculatively fold more conditional branches, which can
lead to some big simplifications.

It would be easy to add a lot more special cases here, so if you notice
SCCP missing anything "obvious", you know what to make smarter.  :)

llvm-svn: 10812
2004-01-13 05:51:55 +00:00
Chris Lattner dab8b6bb50 Implement new Instruction::isRelational method
llvm-svn: 10810
2004-01-12 23:18:25 +00:00
Chris Lattner 1dd054c41b Rearrange and comment code better. No functionality changes
llvm-svn: 10808
2004-01-12 22:07:24 +00:00
Chris Lattner 5a945e3616 Rename ConstantHandling.* -> ConstantFolding.*
Move a bunch of (now) private stuff from ConstantFolding.h into
ConstantFolding.cpp.

This _finally_ gets us to a place where we have a sane constant folder.  The
rules are:

1. LLVM clients now use ConstantExpr::get* methods to fold constants.  If they
   cannot be folded, a constantexpr is created, so these methods always return
   valid Constant*'s.
2. The implementation of ConstantExpr::get* uses the functions exposed by
   ConstantFolding.h to try to fold constants.  If they cannot be folded,
   they should return a null pointer.
3. The implementation of ConstantFolding can do whatever it wants, and only
   has one client (Constants.cpp)

This cuts down on the wierd dependencies, and eliminates the two interfaces.
The old constanthandling interface was especially bad for clients to use
because almost none of them took the failure condition into consideration,
thus leading to obscure problems.

llvm-svn: 10807
2004-01-12 21:13:12 +00:00
Chris Lattner 6ff6ceaf75 Remove a whole bunch more ugliness. This is actually getting to the point of
this whole refactoring: allow constant folding methods to return something
other than predefined classes, allow them to return generic Constant*'s.

llvm-svn: 10806
2004-01-12 21:02:29 +00:00
Chris Lattner 2361bd02a1 Move ConstantHandling.h into lib/VMCore and out of include/llvm
llvm-svn: 10805
2004-01-12 20:48:11 +00:00
Chris Lattner e4867d75dd Move this file to lib/VMCore
llvm-svn: 10804
2004-01-12 20:47:29 +00:00
Chris Lattner f8348c3549 Eliminate usage of the wierd overloaded operator constant folders
llvm-svn: 10802
2004-01-12 20:41:05 +00:00
Chris Lattner 0bba771f49 Eliminate ConstantFoldShiftInstruction reference
llvm-svn: 10801
2004-01-12 20:40:42 +00:00
Chris Lattner b1505c8594 Remove use of ConstantHandling itf
llvm-svn: 10800
2004-01-12 20:13:04 +00:00
Chris Lattner 6b052f2154 Clean up #includes
llvm-svn: 10799
2004-01-12 19:56:36 +00:00
Chris Lattner fcf21a75b0 Fix bug in previous checkin
llvm-svn: 10798
2004-01-12 19:47:05 +00:00
Chris Lattner c1e7cc0fbe Eliminate use of ConstantHandling and ConstantExpr::getShift interfaces
llvm-svn: 10796
2004-01-12 19:35:11 +00:00
Chris Lattner d7ccc9e5a5 Add header file I accidentally removed in teh shuffle
llvm-svn: 10795
2004-01-12 19:15:20 +00:00
Chris Lattner 9eb2b527ad Fix out of date comment, remove use of ConstantExpr::getShift
llvm-svn: 10794
2004-01-12 19:12:58 +00:00
Chris Lattner c9fb4a3b89 Remove use of the ConstantHandling interfaces
llvm-svn: 10793
2004-01-12 19:12:50 +00:00
Chris Lattner 429963742e Remove use of ConstantExpr::getShift
llvm-svn: 10792
2004-01-12 19:10:58 +00:00
Chris Lattner 1b7d4d7b63 Don't use ConstantExpr::getShift anymore
llvm-svn: 10791
2004-01-12 19:08:43 +00:00
Chris Lattner 5645e8a82d Make ConstantExpr::get work for shifts as well
llvm-svn: 10790
2004-01-12 19:04:55 +00:00
Chris Lattner 2853a7ed22 Remove use of ConstantHandling
llvm-svn: 10789
2004-01-12 18:35:03 +00:00
Chris Lattner 118a76cb2f Remove unneeded #include
llvm-svn: 10788
2004-01-12 18:33:54 +00:00
Chris Lattner fc6c859a0c Move llvm::ConstantFoldInstruction from VMCore to here, next to ConstantFoldTerminator
llvm-svn: 10785
2004-01-12 18:25:22 +00:00
Chris Lattner 0df14b3f2b Move llvm::ConstantFoldInstruction from here to Transforms/Utils
llvm-svn: 10784
2004-01-12 18:25:03 +00:00
Chris Lattner 81d8822396 Remove uses of ConstantHandling itf
llvm-svn: 10783
2004-01-12 18:12:44 +00:00
Chris Lattner fe2aafe08a Eliminate use of ConstantHandling itf
llvm-svn: 10782
2004-01-12 18:08:18 +00:00
Chris Lattner 85f325b544 Remove use of ConstantHandling itf
llvm-svn: 10781
2004-01-12 18:02:15 +00:00
Chris Lattner c99dd898af Eliminate use of ConstantHandling itf
llvm-svn: 10780
2004-01-12 17:57:32 +00:00
Chris Lattner 0fe5b32c01 Use constantexprs for casts. Eliminate use of the ConstantHandling interfaces
llvm-svn: 10779
2004-01-12 17:43:40 +00:00
Chris Lattner fe992d4332 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 975c8bde79 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 49f74522ec * 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 7e8af38637 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 05fe6847a8 Implement SCCP/phitest.ll
llvm-svn: 10763
2004-01-12 03:57:30 +00:00
Chris Lattner fafa2ff2d6 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 aacf2a5833 Implement: Assembler/2004-01-11-getelementptrfolding.llx
llvm-svn: 10759
2004-01-11 23:56:33 +00:00
Chris Lattner d248950a8f Urg, remove testing code.
llvm-svn: 10757
2004-01-11 23:30:03 +00:00
Chris Lattner 0180590bea Fix a regression that I introduced yesterday. :(
llvm-svn: 10756
2004-01-11 23:29:26 +00:00
Alkis Evlogimenos 52a714b45b 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 65f901e23b 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 570c69ce01 Hrm, another minor cleanup, which I missed before
llvm-svn: 10753
2004-01-10 21:42:24 +00:00
Chris Lattner 03c71fa8c5 Minor cleanup
llvm-svn: 10752
2004-01-10 21:40:29 +00:00
Chris Lattner 3bcecb92f3 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 a2bfab849f 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 8043f8c294 Remove use of llvm/CodeGen/InstrSelection.h
llvm-svn: 10749
2004-01-10 19:16:26 +00:00
Chris Lattner d832807311 Remove config wrapper around <cerrno>
llvm-svn: 10747
2004-01-10 19:15:14 +00:00
Chris Lattner 0c53031c5e 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 b0a5964356 minor comment tweaks
llvm-svn: 10741
2004-01-10 19:07:06 +00:00
Chris Lattner 4282cbb93a * 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 82167909a8 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 dfe0346e96 Finegrainify namespacification
llvm-svn: 10737
2004-01-10 18:49:43 +00:00
Chris Lattner 97390c21d3 Live var is now in lib/Target/Sparc
llvm-svn: 10735
2004-01-09 18:16:20 +00:00
Chris Lattner ae36879303 Move sparc-specific code into lib/Target/Sparc
llvm-svn: 10734
2004-01-09 18:15:56 +00:00
Chris Lattner 4ee36320f4 Move sparc-specific livevar code into lib/Target/Sparc
llvm-svn: 10733
2004-01-09 18:15:24 +00:00
Chris Lattner bb6fa4b327 Fix more incestuous #includage.
llvm-svn: 10732
2004-01-09 16:17:09 +00:00
Chris Lattner a4ee66f3ea 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 83e84166a3 Move InstrSelection into lib/Target/Sparc, as it's sparc specific
llvm-svn: 10730
2004-01-09 06:24:06 +00:00
Chris Lattner 3d874aebc2 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 b9c7999881 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 df3c342a4c Finegrainify namespacification
llvm-svn: 10727
2004-01-09 06:12:26 +00:00
Chris Lattner fdf788eebd Remove dependence on structure index type. s/MT/FT
llvm-svn: 10726
2004-01-09 06:02:51 +00:00
Chris Lattner 49525f8cf4 Finegrainify namespacification
llvm-svn: 10725
2004-01-09 06:02:20 +00:00
Chris Lattner ff66958154 Finegrainify namespacification
add flags for PR82

llvm-svn: 10724
2004-01-09 05:53:38 +00:00
Chris Lattner 9cc1a0e40d Inching towards fixing PR82
llvm-svn: 10722
2004-01-09 05:44:50 +00:00
Chris Lattner bc39a1a8c4 Inching our way towards fixing PR82
llvm-svn: 10721
2004-01-09 05:42:34 +00:00
Chris Lattner 59d2d7fc33 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 ae5b3d4f74 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 a64d71203e Minor cleanups.
llvm-svn: 10711
2004-01-07 05:31:12 +00:00
Alkis Evlogimenos 9f62b96206 Remove declared but undefined method.
llvm-svn: 10710
2004-01-07 02:29:33 +00:00
Alkis Evlogimenos 1e01557c4e 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 96e9a91f55 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 59f1ef40b0 Add support for new intrinsic
llvm-svn: 10701
2004-01-06 05:33:02 +00:00
Brian Gaeke 2007cec727 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 2fa1aef707 Remove simple coalescing.
llvm-svn: 10695
2004-01-05 08:24:57 +00:00
Chris Lattner a090d388a2 /me slaps forehead
llvm-svn: 10693
2004-01-05 05:45:25 +00:00
Chris Lattner fc3d0598df fix warning
llvm-svn: 10692
2004-01-05 05:42:17 +00:00
Chris Lattner 3d903f0c0b 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 45784e4303 Add new dir
llvm-svn: 10686
2004-01-05 05:25:59 +00:00
Chris Lattner 3bb92c65fd 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 08c5311729 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 5e0e67173d Update description.
llvm-svn: 10681
2004-01-04 23:09:24 +00:00
John Criswell 5782ca06fc 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 748e857996 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 78f1f51c66 * 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 09bd1a06c1 Add some comments, add new getGlobalVariable method
llvm-svn: 10671
2003-12-31 08:43:01 +00:00
Chris Lattner 73546536b2 Add missing #include
llvm-svn: 10669
2003-12-31 07:31:10 +00:00
Chris Lattner be3596c8ca * 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 efeb39e3c0 Make the lookup method const.
llvm-svn: 10667
2003-12-31 07:08:19 +00:00
Chris Lattner e866d1183b Add new function
llvm-svn: 10664
2003-12-31 06:15:37 +00:00
Chris Lattner 1c007c0ff0 New class, useful for command-line interactive programs.
llvm-svn: 10662
2003-12-31 05:40:02 +00:00
Chris Lattner eb537b2401 Fix PR198
llvm-svn: 10659
2003-12-31 03:19:37 +00:00
Chris Lattner af3f8f3b42 Add comments
llvm-svn: 10658
2003-12-31 02:50:02 +00:00
Chris Lattner fd2a514199 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 328e067246 remove some useless #includes
llvm-svn: 10654
2003-12-30 07:55:21 +00:00
Chris Lattner 9b75157c04 Use new getFileSize function instead of sys/stat.h directly.
llvm-svn: 10650
2003-12-30 07:40:35 +00:00
Chris Lattner 4a1c74dcf8 Add new method
llvm-svn: 10649
2003-12-30 07:36:14 +00:00
Chris Lattner 6b668f228f 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 0120e92b2b 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 a462161f9c 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 dca358f6ae implement new getToken function
llvm-svn: 10639
2003-12-29 05:07:02 +00:00
Chris Lattner 5d236005b0 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 a158dc8104 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 43b587d94d 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 52564b2071 Add TargetInstrInfo::isMoveInstr() to support coalescing in register
allocation.

llvm-svn: 10633
2003-12-28 17:35:08 +00:00
Chris Lattner 10cac58d23 Whoops, don't try to lower non intrinsic calls
llvm-svn: 10632
2003-12-28 09:53:23 +00:00
Chris Lattner c45a033b42 implement support for the intrinsic lowering functionality
llvm-svn: 10629
2003-12-28 09:47:19 +00:00
Chris Lattner dfc5631bfd 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 c8c6c03dda 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 4b75e04a60 Use the intrinsic lowering functionality
llvm-svn: 10626
2003-12-28 09:43:35 +00:00