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224 Commits

Author SHA1 Message Date
Chris Lattner
3ff64cf568 add support for new linkage types 
llvm-svn: 9228
 2003-10-18 06:30:21 +00:00
Chris Lattner
3f700e8e47 * 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
Misha Brukman
54c766e934 Add separator between different types of readers. 
llvm-svn: 9183
 2003-10-16 21:19:54 +00:00
Chris Lattner
2bdaaa4e08 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
0ad8f7bb8f Minor cleanups 
llvm-svn: 9079
 2003-10-13 14:57:53 +00:00
Chris Lattner
8f34f82f84 Avoid calling getTypeSlot more 
llvm-svn: 9077
 2003-10-13 14:34:59 +00:00
Chris Lattner
09abbd2da6 This is a header file, thus it needs a -*-C++-*- 
llvm-svn: 9072
 2003-10-13 04:22:07 +00:00
Chris Lattner
b6c8569f05 Regularize header file comments 
llvm-svn: 9071
 2003-10-13 03:32:08 +00:00
Chris Lattner
c7042b310c 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
3fd3ddbd2d Another 10% performance improvement by not using replaceAllUsesWith 
llvm-svn: 8994
 2003-10-09 23:10:14 +00:00
Chris Lattner
b8883ea999 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
7467b5ff4e 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
85f5b18995 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
36f2dcd3d5 Change getConstantValue to throw an exception on error, not return null 
llvm-svn: 8988
 2003-10-09 20:41:16 +00:00
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
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
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
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
Chris Lattner
23450e834e 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
f354fef44b Do not assert fail or crash when a bytecode parse fails! 
llvm-svn: 6284
 2003-05-22 18:26:48 +00:00
Chris Lattner
bb4bd699e0 Eliminate the uchar typedef, use unsigned char explicitly 
llvm-svn: 6283
 2003-05-22 18:08:30 +00:00
Chris Lattner
a8490da0eb Fix Bug: Assembler/2003-05-12-MinIntProblem.llx 
llvm-svn: 6123
 2003-05-12 15:13:52 +00:00
Chris Lattner
e1faff42f4 Add support for the new va_arg instruction 
llvm-svn: 6029
 2003-05-08 02:44:12 +00:00
Misha Brukman
c881f68151 Fixed 'prevalent'. 
llvm-svn: 5860
 2003-04-23 02:59:05 +00:00
Chris Lattner
08a79481cd 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
3327cb03d4 Preserve module source information in the ModuleID 
llvm-svn: 5836
 2003-04-22 18:02:52 +00:00
Chris Lattner
c1da4513e0 Initial support for reading standard .a files 
llvm-svn: 5820
 2003-04-19 21:45:34 +00:00
Chris Lattner
8b1c27945b Add support for reading unaligned bytecode buffers 
llvm-svn: 5819
 2003-04-19 21:45:17 +00:00
Chris Lattner
8453f87c9c Fix a big bad bug I checked in yesterday :( 
llvm-svn: 5807
 2003-04-18 04:11:56 +00:00
Chris Lattner
545bebf00c Add support to the bytecode reader/writer for the new linkage types 
llvm-svn: 5790
 2003-04-16 21:16:05 +00:00
Chris Lattner
fa4f750f3e Add new linkage types to support a real frontend 
llvm-svn: 5786
 2003-04-16 20:28:45 +00:00
Chris Lattner
dd194d3844 * Bug fixes: 
- Fix problems where the constant table would not get updated when
    resolving constants causes other constants to change.

Changes to the V2 bytecode format
  - Null values are implicitly encoded instead of explicitly, this makes
    things more compact!
  - More compactly represent ConstantPointerRefs
  - Bytecode files are represented as:
      Header|GlobalTypes|GlobalVars/Function Protos|Constants|Functions|SymTab
    instead of
      Header|GlobalTypes|Constants|GlobalVars/Function Protos|Functions|SymTab
    which makes a lot of things simpler.

Changes to the reader:
  - Function loading code is much simpler.  We now no longer make function
    PlaceHolderHelper objects to be replaced with real functions.

llvm-svn: 5748
 2003-03-19 20:54:26 +00:00
Chris Lattner
1bb2b2b8c9 Infrastructure for more compact bytecode files and REAL support for versioning 
llvm-svn: 5716
 2003-03-06 17:55:45 +00:00
Chris Lattner
70b5574318 s/Method/Function in variable and method names 
llvm-svn: 5715
 2003-03-06 17:18:14 +00:00
Chris Lattner
66c7c883d3 Continue simplifying error handling, s/method/function 
llvm-svn: 5714
 2003-03-06 17:15:19 +00:00
Chris Lattner
5210697f31 Cleanup error handling constructs 
llvm-svn: 5713
 2003-03-06 17:03:28 +00:00
Chris Lattner
84c6e94784 Pull common code out 
llvm-svn: 5712
 2003-03-06 16:50:32 +00:00
Chris Lattner
f9b71aab86 Use the std namespace explicitly 
llvm-svn: 5708
 2003-03-06 16:32:25 +00:00
Chris Lattner
b5027095e5 - Eliminated the deferred symbol table stuff in Module & Function, it really 
wasn't an optimization and it was causing lots of bugs.

llvm-svn: 4779
 2002-11-20 18:36:02 +00:00
Chris Lattner
dd74dc44b6 - Fix a really nasty bug in the bytecode reader that caused it to fail 
reading bytecode files with > 255 types in them, but only when optimization
    is enabled.  This was caused by GCC shrinking an enum to a single byte
    instead of a whole word.

llvm-svn: 4266
 2002-10-23 00:51:54 +00:00
Chris Lattner
a2c2d8af59 Wow, for some reason, when reading bytecode from stdin, we were only reading 
4 bytes at a time.  Change this to read blocks of 4k

llvm-svn: 4265
 2002-10-22 23:55:24 +00:00
Chris Lattner
33988dc76d There is no way to guarantee that constants are not forward referenced. 
Handle forward referenced constants in a general way.  This fixes bug:
Assembler/2002-10-13-ConstantEncodingProblem.llx and allows the SPEC
197.parser benchmark to be built

llvm-svn: 4161
 2002-10-14 03:33:02 +00:00
Chris Lattner
82f54dca49 - Change Function's so that their argument list is populated when they are 
constructed.  Before, external functions would have an empty argument list,
    now a Function ALWAYS has a populated argument list.

llvm-svn: 4149
 2002-10-13 20:57:00 +00:00
Chris Lattner
fdf2ca9468 - Rename Instruction::First*Op to *OpsBegin, and Num*Ops to *OpsEnd to 
reflect the fact that it's a range being defined.

llvm-svn: 4147
 2002-10-13 19:39:16 +00:00
Anand Shukla
da24f223d3 Changed uchar to unsigned char in function ParseBytecodeBuffer, because seemingly it affects opt in uncertain ways :) 
llvm-svn: 3866
 2002-09-20 20:57:54 +00:00
Chris Lattner
547be87c13 Change the MallocInst & AllocaInst ctors to take the allocated type, not the 
pointer type returned.

llvm-svn: 3711
 2002-09-13 22:28:50 +00:00
Chris Lattner
20b85d96e4 Eliminated the MemAccessInst class, folding contents into GEP class. 
llvm-svn: 3487
 2002-08-22 23:37:20 +00:00
Chris Lattner
969c616d51 Load & StoreInst no longer derive from MemAccessInst, so we don't have 
to handle indexing anymore

llvm-svn: 3485
 2002-08-22 22:49:05 +00:00
Chris Lattner
65c79aaf22 Emit an obnoxious warning message for bytecode that includes load/store 
instructions that use indexing.  Convert them transparently into a pair
of instructions.

llvm-svn: 3431
 2002-08-21 22:55:27 +00:00
Chris Lattner
ebf7d3b8ff Fix bug: test/Regression/Assembler/2002-08-19-BytecodeReader.llx 
llvm-svn: 3384
 2002-08-19 16:48:21 +00:00
Chris Lattner
8cc9a599b5 Turn off a debugging optimization that just slows bytecode reading down 
llvm-svn: 3377
 2002-08-18 00:38:32 +00:00
Chris Lattner
31188e9d7b Fix stupid oversight of missing #include. 
llvm-svn: 3367
 2002-08-17 22:02:41 +00:00
Chris Lattner
f3d49adf85 - Finally nailed: test/Regression/Assembler/2002-08-16-ConstExprInlined.llx 
- ParseConstantPool was resolving reference to value using the function
      slot # instead of the global slot #.
  - Bytecode reader changes:
    - Remove the failure<> template from Bytecode Reader
    - Remove extraneous #includes
    - s/method/function/ a bit
    - Eliminate the fwdRefs class that just added abstraction where it was not
      needed, making things more complex.
    - Use a vector instead of a list for function signatures.

llvm-svn: 3366
 2002-08-17 22:01:27 +00:00
Chris Lattner
6a9d88347a Remove support for Not ConstantExpr. This simplifies the unary case to only 
have to support the cast instruction, so the function is renamed to getCast.

llvm-svn: 3328
 2002-08-14 18:24:09 +00:00
Chris Lattner
12b9a2a7e6 Cleanup ConstantExpr handling: 
* Correctly delete TypeHandles in AsmParser.  In addition to not leaking
   memory, this prevents a bug that could have occurred when a type got
   resolved that the constexpr was using
 * Check for errors in the AsmParser instead of hitting assertion failures
   deep in the code
 * Simplify the interface to the ConstantExpr class, removing unneccesary
   parameters to the ::get* methods.
 * Rename the 'getelementptr' version of ConstantExpr::get to
   ConstantExpr::getGetElementPtr

llvm-svn: 3160
 2002-07-30 18:54:22 +00:00
Chris Lattner
469e4fc557 Break line to fit 80 columns 
llvm-svn: 3083
 2002-07-25 15:40:04 +00:00
Chris Lattner
24bcbdd155 *** empty log message *** 
llvm-svn: 3002
 2002-07-23 17:52:38 +00:00