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493 Commits

Author SHA1 Message Date
Chris Lattner
a6ecd35eab * 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
b9c0efb378 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
231965667f Finegrainify namespacification 
llvm-svn: 10737
 2004-01-10 18:49:43 +00:00
Chris Lattner
6e130238f7 Inching our way towards fixing PR82 
llvm-svn: 10721
 2004-01-09 05:42:34 +00:00
Chris Lattner
5f7770c06b remove some useless #includes 
llvm-svn: 10654
 2003-12-30 07:55:21 +00:00
Chris Lattner
2827a074c2 Use new getFileSize function instead of sys/stat.h directly. 
llvm-svn: 10650
 2003-12-30 07:40:35 +00:00
Chris Lattner
6317315a2f 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
5ad07a3fbf minor cleanups 
llvm-svn: 10612
 2003-12-26 06:16:00 +00:00
John Criswell
8740fbd052 Reverted back to revision 1.11. The previous fix doesn't really fix 
anything; it just causes the bug to go dormant.

llvm-svn: 10585
 2003-12-22 16:22:49 +00:00
John Criswell
80daeb4cdb Fix PR#193. 
Modified ReadArchiveBuffer() so that it dynamically allocates the
std::string object used to hold the bytecode object file's name.  This is
necessary because it is passed by reference to the new Module that is
allocated to represent the bytecode object, and previously we were
using a std::string that disappeared on function exit.

llvm-svn: 10565
 2003-12-20 22:37:29 +00:00
Brian Gaeke
81d68517ea Make getObjectType() smarter about ranlibbed Mac OS X archives. 
llvm-svn: 10493
 2003-12-17 00:18:18 +00:00
Brian Gaeke
94157211b6 Throw better error messages, by calling strerror(errno) when we 
get an error inside the bytecode reader.

llvm-svn: 10415
 2003-12-12 00:47:44 +00:00
Brian Gaeke
e962a55ac5 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
a2ac517a20 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
60d2a51347 * 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
4bb9013bb6 Minor efficiency improvements, finegrainify namespacification 
llvm-svn: 10084
 2003-11-19 17:21:11 +00:00
Chris Lattner
af14b55e1b In the future, these slabs can be null... 
llvm-svn: 10083
 2003-11-19 17:20:42 +00:00
Chris Lattner
417f92b621 Minor efficiency improvements all over. Finegrainify Namespacification 
llvm-svn: 10082
 2003-11-19 17:17:36 +00:00
Chris Lattner
4c0e027b28 Fine grainify namespacification, #include file that defines the interface! 
llvm-svn: 10081
 2003-11-19 16:06:55 +00:00
Chris Lattner
e5b1d0a66d 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
b660dfb79a Remove usage of ConstantPointer 
llvm-svn: 10051
 2003-11-17 17:28:29 +00:00
Brian Gaeke
e2e424701a 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
ccac6e36fb 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
0ba2cec700 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
d25f86d683 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
2df84a62cd no need for endl 
llvm-svn: 9736
 2003-11-05 19:53:32 +00:00
Chris Lattner
352ad83271 Add support for constant expr shifts 
llvm-svn: 9735
 2003-11-05 19:53:03 +00:00
Alkis Evlogimenos
9430d79c1f 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
ee245ddcdf 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
de34542f41 Added LLVM copyright header. 
llvm-svn: 9321
 2003-10-21 15:17:13 +00:00
John Criswell
71d2894956 Added LLVM copyright notice to Makefiles. 
llvm-svn: 9312
 2003-10-20 22:26:57 +00:00
John Criswell
b402729b30 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
87843f87b8 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
620cb7e35a Fix warning 
llvm-svn: 9236
 2003-10-18 19:48:10 +00:00
Chris Lattner
3ff64cf568 add support for new linkage types 
llvm-svn: 9228
 2003-10-18 06:30:21 +00:00
Chris Lattner
e4fc9caea1 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
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
Alkis Evlogimenos
5a1f705c88 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
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
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
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
0b18a0d886 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
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
839f5a9077 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.

Writer changes:
  - We now explictly encode versioning information in the bytecode files.
  - This allows new code to read bytecode files produced by old code, but
    new bytecode files can have enhancements such as the above.  Although this
    makes the reader a bit more complex (having to deal with old formats), the
    writer only needs to be able to produce the most recent version.

llvm-svn: 5749
 2003-03-19 20:56:46 +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
5282326985 Don't keep track of # big vs #small instructions seperately 
llvm-svn: 5385
 2003-01-21 20:13:49 +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
6ee0d4ed15 Clean up code a bit, no functionality changes. 
llvm-svn: 4162
 2002-10-14 03:34:17 +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
Chris Lattner
7cf9f6f4b1 Updates to work with recent Statistic's changes: 
* Renamed StatisticReporter.h/cpp to Statistic.h/cpp
    * Broke constructor to take two const char * arguments instead of one, so
      that indendation can be taken care of automatically.
    * Sort the list by pass name when printing
    * Make sure to print all statistics as a group, instead of randomly when
      the statistics dtors are called.
    * Updated ProgrammersManual with new semantics.

llvm-svn: 4002
 2002-10-01 22:38:41 +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
Misha Brukman
ab67f309cd On the quest of eliminating unnecessary includes. 
llvm-svn: 3715
 2002-09-14 02:18:57 +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
1720a4c0b7 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: 3161
 2002-07-30 18:54:25 +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
ec1a192b16 *** empty log message *** 
llvm-svn: 3105
 2002-07-26 18:40:14 +00:00
Chris Lattner
469e4fc557 Break line to fit 80 columns 
llvm-svn: 3083
 2002-07-25 15:40:04 +00:00
Chris Lattner
071b32361f Register the WriteBytecodePass 
llvm-svn: 3033
 2002-07-23 19:56:44 +00:00
Chris Lattner
24bcbdd155 *** empty log message *** 
llvm-svn: 3002
 2002-07-23 17:52:38 +00:00
Chris Lattner
3f60c43a80 ConstExpr::getelementptr now takes a vector of Constants not Values 
llvm-svn: 2948
 2002-07-18 00:14:27 +00:00
Anand Shukla
14f0ab662d added std:: to pair 
llvm-svn: 2917
 2002-07-16 00:04:57 +00:00
Anand Shukla
c01ca9bfd4 added std:: to vector 
llvm-svn: 2916
 2002-07-16 00:04:15 +00:00
Vikram S. Adve
e182dd58ae Add support for writing ConstantExpr nodes. 
llvm-svn: 2899
 2002-07-14 23:08:30 +00:00
Vikram S. Adve
155a8ec344 Write out the plane for types first, since values of primitive types 
may be constructed by expressions of other types (and so the
contents of the primitive type planes must come after all types).
Use a helper function outputConstantsInPlane in outputConstants to
do this.

llvm-svn: 2898
 2002-07-14 23:07:51 +00:00
Vikram S. Adve
c5355ed343 Use a helper function outputConstantsInPlane in outputConstants. 
llvm-svn: 2897
 2002-07-14 23:05:53 +00:00
Vikram S. Adve
83551932d4 Add support for reading ConstantExpr nodes. 
Add class ConstantFwdRefs to resolve forward references to constants
and to globals. (Hmm... this class could be renamed I guess.)

llvm-svn: 2896
 2002-07-14 23:05:09 +00:00
Vikram S. Adve
81fee7fa10 Add support for reading ConstantExpr nodes. 
Add class ConstantFwdRefs to resolve forward references to constants
and to globals (unified old code for globals into this).

llvm-svn: 2895
 2002-07-14 23:04:18 +00:00
Chris Lattner
ab88b62968 Convert tabs to spaces 
llvm-svn: 2805
 2002-06-30 16:04:37 +00:00
Anand Shukla
b35aa2b2e7 changes to make it compatible with 64bit gcc 
llvm-svn: 2790
 2002-06-25 20:44:04 +00:00
Chris Lattner
d7cbd7d5d2 MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2778
 2002-06-25 16:13:21 +00:00
Chris Lattner
593394bb04 Fix constness problem 
llvm-svn: 2759
 2002-06-05 17:49:40 +00:00
Chris Lattner
8556c1936d Fix constness problems now that the cast operators preserve the constness 
of their argument

llvm-svn: 2758
 2002-06-05 17:38:28 +00:00
Chris Lattner
fd8d5b852c Replace all usages of Type::isPointerType with isa<PointerType> 
llvm-svn: 2486
 2002-05-06 16:15:30 +00:00
Chris Lattner
96e0c48175 Eliminate duplicate or unneccesary #include's 
llvm-svn: 2397
 2002-04-29 17:42:12 +00:00
Chris Lattner
321a8cf4ba Split ConstantVals.h into Constant.h and Constants.h 
llvm-svn: 2378
 2002-04-28 19:55:58 +00:00
Chris Lattner
efd4654268 Remove unneccesary #include 
llvm-svn: 2352
 2002-04-28 04:50:19 +00:00
Chris Lattner
f43286a1e4 Make debugging code not use getStrValue 
llvm-svn: 2295
 2002-04-18 18:14:56 +00:00
Chris Lattner
5e12c7caf5 Move FunctionArgument out of iOther.h into Argument.h and rename class to 
be 'Argument' instead of FunctionArgument.

llvm-svn: 2216
 2002-04-09 19:48:49 +00:00
Chris Lattner
cd3575a5cf s/method/function 
llvm-svn: 2177
 2002-04-08 22:01:15 +00:00
Chris Lattner
8bfb164f22 llvm/Assembly/Writer.h is unneccesary except for extreme output 
isLabelType is obsolete

llvm-svn: 2176
 2002-04-08 21:59:36 +00:00
Chris Lattner
137fa92dce * Move include/llvm/Analysis/SlotCalculator.h to include/llvm/SlotCalculator.h 
because the slot calculator is already part of the VMCore library.
* Rename incorporateMethod and purgeMethod to *Function

llvm-svn: 2154
 2002-04-07 22:49:37 +00:00
Chris Lattner
bc15ae64dd Change references to the Method class to be references to the Function 
class.  The Method class is obsolete (renamed) and all references to it
are being converted over to Function.

llvm-svn: 2144
 2002-04-07 20:49:59 +00:00
Chris Lattner
ff6ec9b552 Enable better debug output. When debugging the type system, print out the 
type tables after reading a bytecode file to make sure they are ok

llvm-svn: 2126
 2002-04-07 06:11:22 +00:00
Chris Lattner
8afff0c29a s/MethodType/FunctionType 
llvm-svn: 2115
 2002-04-04 22:19:18 +00:00
Chris Lattner
798be9a43a Add debug support 
llvm-svn: 2105
 2002-04-04 19:24:11 +00:00
Chris Lattner
8c98acc07f s/Method/Function 
llvm-svn: 2035
 2002-03-29 03:51:11 +00:00
Chris Lattner
849c762b02 Change references from Method to Function 
change references from MethodARgument to FunctionArgument

llvm-svn: 1991
 2002-03-26 18:01:55 +00:00
Chris Lattner
c481e92886 Rename Method to Function 
llvm-svn: 1957
 2002-03-23 22:51:58 +00:00
Chris Lattner
b0a2c5546b Method.h no longer includes BasicBlock.h 
Method::inst_* is now in llvm/Support/InstIterator.h
GraphTraits specializations for BasicBlock and Methods are now in llvm/Support/CFG.h

llvm-svn: 1746
 2002-02-12 21:07:25 +00:00
Chris Lattner
071f08916e Chuck fixed the GCC problems so this hack is now unneccesary 
llvm-svn: 1519
 2002-01-21 23:17:07 +00:00
Chris Lattner
3dc9a2a61f Changes to build successfully with GCC 3.02 
llvm-svn: 1503
 2002-01-20 22:54:45 +00:00
Chris Lattner
43c92f9dbd Remove unsized array support 
llvm-svn: 1461
 2001-12-14 16:30:51 +00:00
Chris Lattner
8ab6f31913 Add pointer indexing support 
llvm-svn: 1460
 2001-12-14 16:30:09 +00:00
Chris Lattner
c4a5815033 Renamed inst_const_iterator -> const_inst_iterator 
Renamed op_const_iterator   -> const_op_iterator
Renamed PointerType::getValueType() -> PointerType::getElementType()

llvm-svn: 1408
 2001-12-04 00:03:30 +00:00
Chris Lattner
f6b7da2bb5 Rename ConstPoolVal -> Constant 
Rename ConstPool*   -> Constant*
Rename ConstPoolVals.h -> ConstantVals.h

llvm-svn: 1407
 2001-12-03 22:26:30 +00:00
Chris Lattner
bcf2df7058 Split the PHINode class out from the iOther.h file into the iPHINode.h file 
llvm-svn: 1405
 2001-12-03 18:02:31 +00:00
Chris Lattner
f90b19a71c Move support directory 
llvm-svn: 1401
 2001-11-29 16:32:16 +00:00
Chris Lattner
e577171af8 Implement internal method support 
llvm-svn: 1374
 2001-11-26 18:56:10 +00:00
Chris Lattner
47661d9be5 Implement array indexing 
llvm-svn: 1337
 2001-11-26 16:54:55 +00:00
Chris Lattner
7d0854c71e Remove debug info :( 
llvm-svn: 1280
 2001-11-12 21:52:57 +00:00
Chris Lattner
a6ada3716c Fix bug in new assertion 
llvm-svn: 1279
 2001-11-12 21:48:38 +00:00
Chris Lattner
3dc54c19b3 Add an assertion check 
llvm-svn: 1276
 2001-11-12 20:30:32 +00:00
Chris Lattner
2dce653a78 I don't know what I was thinking 
llvm-svn: 1275
 2001-11-12 20:30:12 +00:00
Chris Lattner
9010727e28 Fix obscure nasty bug with bytecode writing that could cause the last byte to be dropped. 
llvm-svn: 1123
 2001-11-04 21:32:41 +00:00
Chris Lattner
d61e4631f5 Fix major bugs in type resolution 
llvm-svn: 1092
 2001-11-03 03:27:53 +00:00
Chris Lattner
b0b7551e5f Frivolous cleanups 
llvm-svn: 973
 2001-10-24 06:21:22 +00:00
Chris Lattner
668806b733 Dang it, do NOT check in code that enables debugging. Bad chris 
llvm-svn: 972
 2001-10-24 05:14:35 +00:00
Chris Lattner
7ec504f5dc Changes to get some meaningful feedback from the bytecode reader. At some point this stuff should all be exception driven, but for now it is not. 
llvm-svn: 970
 2001-10-24 01:15:12 +00:00
Chris Lattner
1e04123949 Oops, didn't mean to check in enabled debugging support. :( 
llvm-svn: 962
 2001-10-23 03:21:42 +00:00
Chris Lattner
bc4f868dd8 Fixed a LONG standing, SCARY problem with bytecode encoding. It turns out to be an endian problem that only shows up with type 0 instructions in LARGE programs. 
llvm-svn: 961
 2001-10-23 03:21:10 +00:00
Chris Lattner
0553612e11 Allow unresolved/opaque types to be read and written to bytecode files 
llvm-svn: 959
 2001-10-23 01:53:22 +00:00
Chris Lattner
e8b0d4522f Fix another annoying bug that took forever to track down. This one involves abstract type resolution at a bad time that broke symbol tables. 
llvm-svn: 958
 2001-10-23 01:53:01 +00:00
Chris Lattner
9c5e9e028e Fix problem with a cast instruction that must be expanded to type 0 
llvm-svn: 929
 2001-10-21 00:14:44 +00:00
Chris Lattner
f790ec066e Dang, we were losing the Constant bit on globals. Fix this 
llvm-svn: 885
 2001-10-18 06:11:23 +00:00
Chris Lattner
fd1ab08cba Rename ConstPoolPointerReference to ConstPoolPointerRef - My fingers get tired typing that much 
llvm-svn: 822
 2001-10-15 13:21:42 +00:00
Chris Lattner
9acb843577 External methods shouldn't have argument lists 
llvm-svn: 807
 2001-10-14 23:28:41 +00:00
Chris Lattner
21a0de20bf * Use new style casts more 
* Add real support for global variable addresses initializing constants
* Fix encoding/decoding of VarArgs calls
* Support the Invoke instruction

llvm-svn: 761
 2001-10-13 06:48:38 +00:00
Chris Lattner
601ab4b0ff * Add real support for global variable addresses initializing constants 
* Add minor optimization to BytecodeParser::refineAbstractType
* MethodType::get now take an explicit isVarArg parameter
* Fix encoding/decoding of VarArgs calls
* Support the Invoke instruction

llvm-svn: 760
 2001-10-13 06:47:01 +00:00
Chris Lattner
5eb7388b84 Rename getNullPointer to getNull 
llvm-svn: 708
 2001-10-03 15:39:24 +00:00
Chris Lattner
a01eda3091 * Both Method & GlobalVariable now subclass GlobalValue 
* ConstPoolPointerReference now represents a pointer to a GlobalValue
* Methods name references are now explicit pointers to methods
* Rename Value::GlobalVal to Value::GlobalVariableVal to avoid confusion

llvm-svn: 703
 2001-10-03 14:53:21 +00:00
Chris Lattner
08b1dde37e Commit more code over to new cast style 
llvm-svn: 697
 2001-10-02 03:41:24 +00:00
Chris Lattner
ad1b0a1a83 Convert more code to use new style casts 
Eliminate old style casts from value.h

llvm-svn: 696
 2001-10-01 20:11:19 +00:00
Chris Lattner
4c684cde80 Add more support for new style casts 
Convert more code to use them

llvm-svn: 695
 2001-10-01 18:26:53 +00:00
Chris Lattner
43781f1f96 Add support for new style casts 
llvm-svn: 694
 2001-10-01 16:18:37 +00:00
Chris Lattner
b77eae1b27 Implement constant pointers, and null specifically in the parser, bytecode writer, and 
bytecode reader.

llvm-svn: 668
 2001-09-30 22:46:54 +00:00
Chris Lattner
9b45b18404 Pull iterators out of CFG.h and CFGdecls and put them in Support directory 
llvm-svn: 664
 2001-09-28 22:56:31 +00:00
Chris Lattner
ac91b150a7 Add support for global constants, and for initializers for constants 
llvm-svn: 598
 2001-09-18 04:01:05 +00:00
Chris Lattner
fb161a3063 Fix a bug with not removing method level types after compilation 
llvm-svn: 582
 2001-09-14 22:03:42 +00:00
Chris Lattner
00391ca46d ModuleTyID doesn't exist anyymore 
Use correct cast

llvm-svn: 539
 2001-09-10 20:09:08 +00:00
Chris Lattner
ee86b5f051 getMethodType is now just getType 
llvm-svn: 538
 2001-09-10 20:08:52 +00:00
Chris Lattner
9d1629d688 Implement global variable support 
llvm-svn: 530
 2001-09-10 07:58:01 +00:00
Chris Lattner
28154ea366 * Emit bytecode using a deque instead of a vector to be faster 
* Internal rep no longer has a constant pool
* Support emission of recursive types
* Don't output a constant pool for an external method
* The bytecode writer is no longer a module analyzer

llvm-svn: 449
 2001-09-07 16:39:41 +00:00
Chris Lattner
0d073caf6c * Remove support for internal constant pool 
* Support globally unique constants
* Support recursive and forward referenced types
* Support abstract types
* Add new BCR_TRACE macro to enable debugging of why the bytecode reader
  occasionally refuses to read something

llvm-svn: 448
 2001-09-07 16:37:43 +00:00
Chris Lattner
64c7f2be62 * Make sure that the size of the type field can also control the output 
instruction pattern.

llvm-svn: 324
 2001-07-28 17:51:21 +00:00
Chris Lattner
29c977bd03 * Add calls to failure template so that it is actually possible to debug 
why bytecode parsing is failing.  Just put a breakpoint in the failure
  templates.

llvm-svn: 323
 2001-07-28 17:50:18 +00:00
Chris Lattner
fc1d7dd221 Add support for extern varargs methods & varargs method calls 
llvm-svn: 297
 2001-07-25 22:47:55 +00:00
Chris Lattner
2b73dd7866 Doh! Wrong accessor. Caused 'can not read bytecode' errors. :( 
llvm-svn: 282
 2001-07-23 18:51:23 +00:00
Chris Lattner
ff6c44f04f Moved inline/llvm/Tools/* to include/llvm/Support/* 
llvm-svn: 279
 2001-07-23 17:46:59 +00:00
Chris Lattner
964af23ab4 Add support to the bytecode writer to recognize floating point constants 
llvm-svn: 190
 2001-07-15 00:17:23 +00:00
Chris Lattner
856ac86318 Add support to the bytecode reader to recognize floating point constants 
llvm-svn: 189
 2001-07-15 00:17:18 +00:00
Chris Lattner
f3410f8701 * The parent of a constant pool is a symtabvalue, not a value. 
llvm-svn: 181
 2001-07-14 06:10:49 +00:00
Chris Lattner
6065e61656 Implementation of Store & GetElementPtr 
llvm-svn: 164
 2001-07-08 23:22:50 +00:00
Chris Lattner
dccda26cd8 Implemented shl, shl, & load instructions 
llvm-svn: 161
 2001-07-08 21:10:27 +00:00
Chris Lattner
3473967aeb Moved Cast from being a Unary instruction to being an "Other" instruction 
llvm-svn: 160
 2001-07-08 19:03:27 +00:00
Chris Lattner
7a7ddef47e Neg instruction removed. Cast instruction implemented. 
llvm-svn: 156
 2001-07-08 04:57:15 +00:00
Chris Lattner
1619a709b4 Convert BinaryOperand and UnaryOperator to only take instruction types of 
the appropriate enum

llvm-svn: 153
 2001-07-07 20:17:23 +00:00
Chris Lattner
c00392210d Broad superficial changes: 
* Renamed getOpcode to getOpcodeName
* Changed getOpcodeName to return a const char * instead of string
* Added a getOpcode method to replace getInstType
* Changed code to use getOpcode instead of getInstType

llvm-svn: 152
 2001-07-07 19:24:15 +00:00
Chris Lattner
6f7587e4d3 Changed the fundemental architecture of Operands for Instructions. Now 
Operands are maintained as a vector<Use> in the User class, and operator
iterators are provided as before.  Getting an operand no longer requires
a virtual function call.

WARNING: getOperand(x) where x >= getNumOperands() will now assert instead
of returning null!

llvm-svn: 149
 2001-07-07 08:36:50 +00:00
Chris Lattner
d616582a7a Miscellaneous cleanups: 
* Convert post to pre-increment for for loops
  * Use generic programming more
  * Use new Value::cast* instructions
  * Use new Module, Method, & BasicBlock forwarding methods
  * Use new facilities in STLExtras.h
  * Use new Instruction::isPHINode() method

llvm-svn: 96
 2001-06-27 23:41:11 +00:00
Chris Lattner
07b100a643 Convert ugly postincrement to efficient preincrement 
llvm-svn: 89
 2001-06-27 23:34:01 +00:00
Chris Lattner
287398c2a9 Renamed get.*Operator to create seeing that it would have to be qualified 
with the classname anyways.

llvm-svn: 74
 2001-06-25 07:31:31 +00:00
Chris Lattner
a6d2f96bdb Updates to support 
* Changes in PHI node structure

llvm-svn: 25
 2001-06-11 15:04:40 +00:00
Chris Lattner
11c3121788 Moved getBinaryOperator to the BinaryOperator class and the getUnaryOperator 
to the UnaryOperator class (from the Instruction class).

llvm-svn: 21
 2001-06-08 21:30:13 +00:00
Chris Lattner
e6b9b382e2 Initial revision 
llvm-svn: 2
 2001-06-06 20:29:01 +00:00