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548 Commits

Author SHA1 Message Date
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