Commit Graph

281 Commits

Author SHA1 Message Date
Brian Gaeke 36fb4f19cd In getObjectType(), doxygenify comment, and take a pointer to the
beginning of the archive member data as an argument.

Get rid of ParseLongFilenameSection(), which is dead.

In ReadArchiveBuffer(), implement support for 4.4BSD/MacOSX long filenames.
This is kind of invasive, because they prepend the long filename to the archive
member data, and then lie about the size. So we have to keep track of the real
size.

llvm-svn: 10392
2003-12-11 00:38:04 +00:00
Chris Lattner d9cf9b30eb Emit & read more compressed bytecode by not emitting a bytecodeblock for
each basic block in function.  Instead, just emit a stream of instructions,
chopping up basic blocks based on when we find terminator instructions.  This
saves a fairly substantial chunk of bytecode space.  In stripped, sample
cases, for example, we get this reduction in size:

197.parser: 163036 -> 137180:  18.8% reduction
254.gap   : 844936 -> 689392:  22.6%
255.vortex: 621724 -> 528444:  17.7%

...

Not bad for something this simple.  :)  Note that this doesn't require a new
bytecode version number at all, though version 1.1 should not need to support
the old format.

llvm-svn: 10280
2003-12-01 07:05:31 +00:00
Chris Lattner 9c68fa3ab1 * Finegrainify namespacification
* Strength reduce several data structures which were left over from the
  "bad old days"
* Minor efficiency improvements
* Major efficiency improvement: In BytecodeParser::insertValue, do not allocate
  a new ValueTab entry just because some value exists with a large type.  This
  dramatically reduces the number of allocations/deallocations performed by the
  bytecode reader, and speeds up parsing of Kimwitu++ from 34s to 17s.  This is
  to help address PR127

llvm-svn: 10085
2003-11-19 17:27:18 +00:00
Chris Lattner 8700c28ac9 Minor efficiency improvements, finegrainify namespacification
llvm-svn: 10084
2003-11-19 17:21:11 +00:00
Chris Lattner bf346b526f In the future, these slabs can be null...
llvm-svn: 10083
2003-11-19 17:20:42 +00:00
Chris Lattner 11e8f1b595 Minor efficiency improvements all over. Finegrainify Namespacification
llvm-svn: 10082
2003-11-19 17:17:36 +00:00
Chris Lattner e8de15976a Fine grainify namespacification, #include file that defines the interface!
llvm-svn: 10081
2003-11-19 16:06:55 +00:00
Chris Lattner ffa9d511f9 Minor speedup to do less linear time searches of information we already have.
speeds up disassembly of kc++ by .6s

llvm-svn: 10079
2003-11-19 06:01:12 +00:00
Chris Lattner ea25538936 Remove usage of ConstantPointer
llvm-svn: 10051
2003-11-17 17:28:29 +00:00
Brian Gaeke 900cc96e08 Implement skeletal support for __.SYMDEF (ranlib) sections in archives.
Correctly parse the Long Filename section of the archive.
When reading in archive members, set their ModuleIDs to
 "ARCHIVENAME(MEMBERNAME)", as is traditional.

llvm-svn: 10043
2003-11-16 23:08:48 +00:00
Chris Lattner 93dea78f85 I can't believe the incompetence of the people I have to deal with around here.
These fools don't even wrap code at 80 columns.

Oh wait, _I_ wrote that.  That explains a lot!!

llvm-svn: 9999
2003-11-14 16:34:25 +00:00
Chris Lattner cd45bc4086 Fix PR 110: the constant folding code assumes that if something is not a
constant expression, but is of (for example) ubyte type, then it is a
ConstantUInt.  This was not true for placeholders.

llvm-svn: 9994
2003-11-14 06:38:46 +00:00
Brian Gaeke 960707c335 Put all LLVM code into the llvm namespace, as per bug 109.
llvm-svn: 9903
2003-11-11 22:41:34 +00:00
Chris Lattner c3d6f21bbe no need for endl
llvm-svn: 9736
2003-11-05 19:53:32 +00:00
Chris Lattner b36e8a1a2e Add support for constant expr shifts
llvm-svn: 9735
2003-11-05 19:53:03 +00:00
Alkis Evlogimenos 404beb98ef Put DEBUG_OUTPUT at the top along with TRACE_LEVEL. Also fix the code
inside DEBUG_OUTPUT so that it compiles.

llvm-svn: 9614
2003-10-30 18:33:58 +00:00
Brian Gaeke 45eb2eeb74 Explicitly cast type, so we aren't passing output_vbr a size_t.
llvm-svn: 9590
2003-10-29 20:09:01 +00:00
John Criswell 29265fe981 Added LLVM copyright header.
llvm-svn: 9321
2003-10-21 15:17:13 +00:00
John Criswell 4436c49787 Added LLVM copyright notice to Makefiles.
llvm-svn: 9312
2003-10-20 22:26:57 +00:00
John Criswell 482202a601 Added LLVM project notice to the top of every C++ source file.
Header files will be on the way.

llvm-svn: 9298
2003-10-20 19:43:21 +00:00
Chris Lattner b94550e537 Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions.
llvm-svn: 9269
2003-10-19 21:34:28 +00:00
Chris Lattner eb6cfaef4b Fix warning
llvm-svn: 9236
2003-10-18 19:48:10 +00:00
Chris Lattner dc83293a38 add support for new linkage types
llvm-svn: 9228
2003-10-18 06:30:21 +00:00
Chris Lattner 9d57347490 Updated to emit the final 1.0 bytecode format. This supports weak linkage,
more efficient encoding of varargs calls, and the new varargs intrinsics.

llvm-svn: 9221
2003-10-18 05:54:48 +00:00
Chris Lattner 7c6c539296 * New revised variable argument handling support
* More dense bytecode encoding for varargs calls (like printf)
* Eliminated the extremely old bytecode format.  rev #0 is now 1.0

llvm-svn: 9220
2003-10-18 05:54:18 +00:00
Alkis Evlogimenos 8faf8d93d5 Eliminate some extraneous code in SlotCalculator::insertVal().
Rename SlotCalculator::getValSlot() to SlotCalculator::getSlot(),
       SlotCalculator::insertValue() to SlotCalculator::getOrCreateSlot(),
       SlotCalculator::insertVal() to SlotCalculator::insertValue(), and
       SlotCalculator::doInsertVal() to SlotCalculator::doInsertValue().

llvm-svn: 9190
2003-10-17 02:02:40 +00:00
Misha Brukman 0659ddc455 Add separator between different types of readers.
llvm-svn: 9183
2003-10-16 21:19:54 +00:00
Chris Lattner 2d05c60bac Add support for 'weak' linkage.
For now, we translate linkonce into weak linkage in the bytecode format because
we don't have enough bits to represent it.  We will rev the bytecode version
soon anyways, so this will be fixed in the near future.

llvm-svn: 9170
2003-10-16 18:28:50 +00:00
Chris Lattner aa78cc9e5d Minor cleanups
llvm-svn: 9079
2003-10-13 14:57:53 +00:00
Chris Lattner a785563692 Avoid calling getTypeSlot more
llvm-svn: 9077
2003-10-13 14:34:59 +00:00
Chris Lattner f0bf7cb739 This is a header file, thus it needs a -*-C++-*-
llvm-svn: 9072
2003-10-13 04:22:07 +00:00
Chris Lattner 44d2c3514a Regularize header file comments
llvm-svn: 9071
2003-10-13 03:32:08 +00:00
Chris Lattner fdf472a83a Ok, the "fix" for this is to do a real associative container. Symbol tables
are ordered by name, not by slot, so the previous solution wasn't any good.
On a large testcase, this reduces time to parse from 2.17s to 1.58s.

llvm-svn: 9002
2003-10-10 05:43:47 +00:00
Chris Lattner 1434d68164 Another 10% performance improvement by not using replaceAllUsesWith
llvm-svn: 8994
2003-10-09 23:10:14 +00:00
Chris Lattner 2ec9de30cd Reserve space for PHI nodes when we read them in. This provides a VERY
tasty 15% speedup on the testcase from Bill.

llvm-svn: 8993
2003-10-09 22:46:58 +00:00
Chris Lattner 5255bed8bc Use the version of getValue that takes the type plane instead of the type
if possible.  This provides a consistent 8.5% speedup.

llvm-svn: 8991
2003-10-09 22:39:30 +00:00
Chris Lattner 819ce2dca1 Pass a vector around to reduce dynamic allocation
Throw the RawInst class in an anon namespace

llvm-svn: 8990
2003-10-09 20:45:42 +00:00
Chris Lattner 1ae8a48a62 Change getConstantValue to throw an exception on error, not return null
llvm-svn: 8988
2003-10-09 20:41:16 +00:00
Chris Lattner a89c91020c Remove potentially N^2 algorithm from symbol table reader. No speedup
in practice though

llvm-svn: 8985
2003-10-09 20:30:04 +00:00
Chris Lattner e7691a4520 Major refactoring of the bytecode reader. This includes the following
changes:
  * BytecodeReader::getType(...) used to return a null pointer
    on error.  This was only checked about half the time.  Now we convert
    it to throw an exception, and delete the half that checked for error.
    This was checked in before, but psmith crashed and lost the change :(
  * insertValue no longer returns -1 on error, so callers don't need to
    check for it.
  * Substantial rewrite of InstructionReader.cpp, to use more efficient,
    simpler, data structures.  This provides another 5% speedup.  This also
    makes the code much easier to read and understand.

llvm-svn: 8984
2003-10-09 20:22:47 +00:00
Chris Lattner bd26abdc95 Significantly clean up parsing of instructions. This exceptionizes and
simplifies the control flow a bit.  This provides a small (~3%) speedup,
but it's primarily a cleanup exercise.

llvm-svn: 8983
2003-10-09 18:25:19 +00:00
Chris Lattner 1e8addf890 Eliminate the instruction placeholder. Simplify a bunch of code.
This results in no significant speedup, but does provide simpler code

llvm-svn: 8980
2003-10-09 06:14:26 +00:00
Chris Lattner 42dce1e365 Eliminate the old LateResolveValues data structure, replacing it with a
new, simpler, ForwardReferences data structure.  This is just the first
simple replacement, subsequent changes will improve the code more.

This simple change improves the performance of loading a file from HDF5
(contributed by Bill) from 2.36s to 1.93s, a 22% improvement.  This
presumably has to do with the fact that we only create ONE placeholder for
a particular forward referenced values, and also may be because the data
structure is much simpler.

llvm-svn: 8979
2003-10-09 06:05:40 +00:00
Chris Lattner a9c297c8ea Remove a dead method
llvm-svn: 8978
2003-10-09 05:25:34 +00:00
Chris Lattner abf6412c09 This patch substantially simplifies and cleans up handling of basic blocks
in the bytecode parser.  Before we tried to shoehorn basic blocks into the
"getValue" code path with other types of values.  For a variety of reasons
this was a bad idea, so this patch separates it out into its own data structure.

This simplifies the code, makes it fit in 80 columns, and is also much faster.
In a testcase provided by Bill, which has lots of PHI nodes, this patch speeds
up bytecode parsing from taking 6.9s to taking 2.32s.  More speedups to
follow later.

llvm-svn: 8977
2003-10-08 22:52:54 +00:00
Chris Lattner f29c7b1a3f Inline the postResolveValues method. It was poorly named anyway
llvm-svn: 8976
2003-10-08 21:51:46 +00:00
Chris Lattner 85555779de Various cleanups and simplifications. This speeds up reading a bytecode file
Bill gave me from 8.69s to 6.90s.

llvm-svn: 8971
2003-10-08 21:18:57 +00:00
Misha Brukman b5c59fa16d Destroy allocated resources on exception.
llvm-svn: 8969
2003-10-08 19:55:47 +00:00
Brian Gaeke 82f64531f6 All of our supported operating systems (so far) and FreeBSD technically
want you to include <sys/stat.h> for fstat(), struct stat, and friends.

llvm-svn: 8887
2003-10-06 03:30:28 +00:00
Chris Lattner cc593fb6c6 Rename AbstractModuleProvider -> ModuleProvider, to match the header file name,
and because, while the class used by the interface is abstract, the actual
concept is not.

llvm-svn: 8850
2003-10-04 20:14:59 +00:00
Chris Lattner 069d6493c9 Transform two methods to return pointers directly instead of returning them
as 'by reference' arguments.

llvm-svn: 8849
2003-10-04 20:00:03 +00:00
Chris Lattner 4318c4b549 Use V for values, not D.
llvm-svn: 8848
2003-10-04 19:29:21 +00:00
Chris Lattner a0d15e4d9e Do not leak the ModuleProvider if releaseModule() throws.
llvm-svn: 8847
2003-10-04 19:19:37 +00:00
Chris Lattner c7caffab32 There is no need for BytecodeParser to be an AbstractTypeUser. Instead, it
can just use PATypeHolders

llvm-svn: 8832
2003-10-02 20:26:18 +00:00
Chris Lattner 4437995826 Just rethrow previous exception instead of making a new one
llvm-svn: 8718
2003-09-26 14:44:52 +00:00
Chris Lattner 1e9402d93d Define the instance variable Buffer, not the automatic variable Buffer.
This was causing us to munmap random stuff, which is obviously bad.

llvm-svn: 8709
2003-09-25 04:13:53 +00:00
Chris Lattner ce6feda799 Fix alignment problem
llvm-svn: 8707
2003-09-24 22:34:17 +00:00
Misha Brukman 86c8a485d0 Actually assign the string correctly through the std::string pointer.
llvm-svn: 8704
2003-09-24 22:10:47 +00:00
Misha Brukman c3634809e6 * Eliminate BytecodeBufferReader::Length member variable
* Kill unused ALIN_PTRS #define
* Set the error string if user passed it in to be compatible with former API

llvm-svn: 8701
2003-09-24 22:04:02 +00:00
John Criswell 89f4dcf5bc Added code that ensures that we pass the beginning of the data buffer to
the parsing routines regardless of whether the buffer is re-aligned or not.

llvm-svn: 8693
2003-09-23 21:19:11 +00:00
Misha Brukman 1a74cffdec Stop returning bool and pass Instruction by reference;
return std::auto_ptr and use exceptions

llvm-svn: 8684
2003-09-23 16:17:50 +00:00
Misha Brukman 0c0a882bc3 Suggestions made by Chris:
* Instead of a #define, use inline function
* Fix the name on the #define, errr... now inline function to be more logical:
  it doesn't CHECK the alignment, it PERFORMS the alignment
* To get string name of a Type*, use getDescription(), not getName()

llvm-svn: 8683
2003-09-23 16:15:29 +00:00
Misha Brukman 301f7dfa19 * Group class definitions & implementations together
* Make sure we align the buffer we're given
* Do not let exceptions propagate when the caller asks for a Module*
* Add doxygenified comments to wrapper functions

llvm-svn: 8682
2003-09-23 16:13:28 +00:00
Misha Brukman 715fe875bb * Constantify arguments to copy function
* Stop using a #define, make it an inline if statement

llvm-svn: 8678
2003-09-23 15:09:26 +00:00
Misha Brukman 3e18bc1518 Removed no longer used member variable.
llvm-svn: 8677
2003-09-22 23:58:08 +00:00
Misha Brukman bafce80ba4 Added file header comment.
llvm-svn: 8675
2003-09-22 23:44:46 +00:00
Chris Lattner df60fe04ab Update file header for renamed file
llvm-svn: 8673
2003-09-22 23:42:00 +00:00
Misha Brukman 6e9a3517f2 * Cleaned up code:
- no more passing around a string pointer to set errors
  - no more returning booleans and checking for errors, we use C++ exceptions
* Broke functionality into 2 new classes, one reads from file, one from a stream
* Implemented lazy function streaming - the parser can read in a function at-a-time

llvm-svn: 8671
2003-09-22 23:38:23 +00:00
Chris Lattner af4c95a051 Fix a spello Misha made while fixing one of my appostrifications
llvm-svn: 8510
2003-09-15 00:33:20 +00:00
Misha Brukman acda7df68b Fixed spelling and grammar.
llvm-svn: 8489
2003-09-11 22:34:13 +00:00
Chris Lattner 0b792b4ed3 Fix bug
llvm-svn: 8410
2003-09-08 19:43:46 +00:00
Chris Lattner 9c58cf6d03 Add support for the unwind instruction
llvm-svn: 8408
2003-09-08 18:54:55 +00:00
Chris Lattner a9083c961e Read volatile loads/stores
llvm-svn: 8401
2003-09-08 18:20:14 +00:00
Chris Lattner 53bd0b24f2 Remove a gross hack that was there to support bytecode files that are over a year old.
If you still have these suckers laying around, you have GOT to rebuild them.  geeze.

llvm-svn: 8395
2003-09-08 18:04:16 +00:00
Chris Lattner 8e8593a2c4 Add support for writing volatile load/stores
llvm-svn: 8394
2003-09-08 17:58:37 +00:00
Chris Lattner 15ad3f07db Fix reading of invoke instrs
llvm-svn: 8365
2003-09-05 18:25:29 +00:00
Chris Lattner 7f8d98776f Whoa, we were misreading invoke instructions "normal" destinations quite badly.
llvm-svn: 8363
2003-09-05 05:27:58 +00:00
Chris Lattner b4520603a4 Non-functional change
llvm-svn: 8352
2003-09-04 23:47:07 +00:00
Chris Lattner 54d85e389f Avoid printing meaningless numbers
llvm-svn: 8342
2003-09-03 20:25:27 +00:00
Chris Lattner 53db94da05 Follow the pattern of all other atu's
llvm-svn: 8340
2003-09-03 16:01:54 +00:00
Chris Lattner 55a07adc36 Allow modules to have 'any' pointer size and endianness. Luckily, we had
some space for extra flags, so we don't need to bump the revision number.

llvm-svn: 8118
2003-08-24 13:47:36 +00:00
Chris Lattner 6a2b859191 Rename SwitchInst::dest_push_back -> addCase
llvm-svn: 8089
2003-08-23 23:14:52 +00:00
Misha Brukman 7eb05a170a Spell `necessary' correctly.
llvm-svn: 7944
2003-08-18 14:43:39 +00:00
Chris Lattner f26a8ee580 Remove redundant const qualifiers from cast<> expressions
llvm-svn: 7253
2003-07-23 15:30:06 +00:00
Chris Lattner c5372125b9 Remove explicit const qualifiers
llvm-svn: 7245
2003-07-23 14:54:33 +00:00
Misha Brukman 7fdaab4f68 The word `separate' only has one `e'.
llvm-svn: 7173
2003-07-14 17:20:40 +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 8826647168 Detemplatize the PATypeHandle class, which was only really instantiated on 'Type'.
llvm-svn: 6774
2003-06-18 19:22:36 +00:00
Chris Lattner bbd00c12e0 Fix bug: Assembler/2003-06-17-InvokeDisassemble.llx
"yes, invoke instructions can have just three arguments"

llvm-svn: 6736
2003-06-17 13:31:10 +00:00
Chris Lattner 4a20791049 Fix bug: Assembler/2003-05-03-BytecodeReaderProblem.llx
by emitting the type planes before any constants (which could be constant
expressions involving undefined types!)

llvm-svn: 6285
2003-05-22 18:35:38 +00:00
Chris Lattner c56bdc5520 Do not assert fail or crash when a bytecode parse fails!
llvm-svn: 6284
2003-05-22 18:26:48 +00:00
Chris Lattner e69a1b9866 Eliminate the uchar typedef, use unsigned char explicitly
llvm-svn: 6283
2003-05-22 18:08:30 +00:00
Chris Lattner 09eb76ddfd Fix Bug: Assembler/2003-05-12-MinIntProblem.llx
llvm-svn: 6123
2003-05-12 15:13:52 +00:00
Chris Lattner f70da10697 Add support for the new va_arg instruction
llvm-svn: 6029
2003-05-08 02:44:12 +00:00
Misha Brukman 1d6f220a87 Fixed 'prevalent'.
llvm-svn: 5860
2003-04-23 02:59:05 +00:00
Chris Lattner 35834a503b Add support for reading and writing pointersize/endianness to and from bytecode
llvm-svn: 5839
2003-04-22 18:15:10 +00:00
Chris Lattner b672b5607f Preserve module source information in the ModuleID
llvm-svn: 5836
2003-04-22 18:02:52 +00:00
Chris Lattner bc35e27dfd Initial support for reading standard .a files
llvm-svn: 5820
2003-04-19 21:45:34 +00:00
Chris Lattner 561e0005c5 Add support for reading unaligned bytecode buffers
llvm-svn: 5819
2003-04-19 21:45:17 +00:00
Chris Lattner 56d9f7f02a Fix a big bad bug I checked in yesterday :(
llvm-svn: 5807
2003-04-18 04:11:56 +00:00