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193 Commits

Author SHA1 Message Date
Chris Lattner
c0abb16551 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
8f99fbb02c 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
4eb71c8940 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
c527ed77b8 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
6f7b5bd63f 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
3b7b192b6a Remove a dead method 
llvm-svn: 8978
 2003-10-09 05:25:34 +00:00
Chris Lattner
55e1c2edfb 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
c920c81739 Inline the postResolveValues method. It was poorly named anyway 
llvm-svn: 8976
 2003-10-08 21:51:46 +00:00
Chris Lattner
a7d6d16c13 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
7b758ed3b5 Destroy allocated resources on exception. 
llvm-svn: 8969
 2003-10-08 19:55:47 +00:00
Brian Gaeke
7bd96d6b90 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
def80d731a 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
7a9db7a722 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
0e866f36a0 Use V for values, not D. 
llvm-svn: 8848
 2003-10-04 19:29:21 +00:00
Chris Lattner
2b8c4bf029 Do not leak the ModuleProvider if releaseModule() throws. 
llvm-svn: 8847
 2003-10-04 19:19:37 +00:00
Chris Lattner
62331c44ab 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
ae8b7c1a56 Just rethrow previous exception instead of making a new one 
llvm-svn: 8718
 2003-09-26 14:44:52 +00:00
Chris Lattner
222df3cfc5 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
6d9f1022d5 Fix alignment problem 
llvm-svn: 8707
 2003-09-24 22:34:17 +00:00
Misha Brukman
08e8d47b1e Actually assign the string correctly through the std::string pointer. 
llvm-svn: 8704
 2003-09-24 22:10:47 +00:00
Misha Brukman
c16b33f803 * 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
92b65ebb52 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
12fd3ebd72 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
055804accd 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
fbb96c627b * 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
63749f4126 * 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
e05ffcca52 Removed no longer used member variable. 
llvm-svn: 8677
 2003-09-22 23:58:08 +00:00
Misha Brukman
c68b0950aa Added file header comment. 
llvm-svn: 8675
 2003-09-22 23:44:46 +00:00
Chris Lattner
b98aa0e0fb Update file header for renamed file 
llvm-svn: 8673
 2003-09-22 23:42:00 +00:00
Misha Brukman
41f2a38c92 * 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
64791df910 Fix a spello Misha made while fixing one of my appostrifications 
llvm-svn: 8510
 2003-09-15 00:33:20 +00:00
Misha Brukman
629711a7c3 Fixed spelling and grammar. 
llvm-svn: 8489
 2003-09-11 22:34:13 +00:00
Chris Lattner
d75fa85cc1 Fix bug 
llvm-svn: 8410
 2003-09-08 19:43:46 +00:00
Chris Lattner
4ad8720f91 Add support for the unwind instruction 
llvm-svn: 8408
 2003-09-08 18:54:55 +00:00
Chris Lattner
049cadf854 Read volatile loads/stores 
llvm-svn: 8401
 2003-09-08 18:20:14 +00:00
Chris Lattner
cd6bbd3823 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
bc7004d26a Add support for writing volatile load/stores 
llvm-svn: 8394
 2003-09-08 17:58:37 +00:00
Chris Lattner
a70297a209 Fix reading of invoke instrs 
llvm-svn: 8365
 2003-09-05 18:25:29 +00:00
Chris Lattner
1bb427b0a7 Whoa, we were misreading invoke instructions "normal" destinations quite badly. 
llvm-svn: 8363
 2003-09-05 05:27:58 +00:00
Chris Lattner
4caa92eca5 Non-functional change 
llvm-svn: 8352
 2003-09-04 23:47:07 +00:00
Chris Lattner
0b78090518 Avoid printing meaningless numbers 
llvm-svn: 8342
 2003-09-03 20:25:27 +00:00
Chris Lattner
4e722bde53 Follow the pattern of all other atu's 
llvm-svn: 8340
 2003-09-03 16:01:54 +00:00
Chris Lattner
03980a2b30 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
f35db86ae4 Rename SwitchInst::dest_push_back -> addCase 
llvm-svn: 8089
 2003-08-23 23:14:52 +00:00
Misha Brukman
56f7db4178 Spell `necessary' correctly. 
llvm-svn: 7944
 2003-08-18 14:43:39 +00:00
Chris Lattner
1351c304dc Remove redundant const qualifiers from cast<> expressions 
llvm-svn: 7253
 2003-07-23 15:30:06 +00:00
Chris Lattner
63ea851f94 Remove explicit const qualifiers 
llvm-svn: 7245
 2003-07-23 14:54:33 +00:00
Misha Brukman
5de3e14206 The word separate' only has one e'. 
llvm-svn: 7173
 2003-07-14 17:20:40 +00:00
John Criswell
258dfc0319 Merged in autoconf branch. This provides configuration via the autoconf 
system.

llvm-svn: 7014
 2003-06-30 21:59:07 +00:00
Chris Lattner
75e1e892a6 Detemplatize the PATypeHandle class, which was only really instantiated on 'Type'. 
llvm-svn: 6774
 2003-06-18 19:22:36 +00:00