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891 Commits

Author SHA1 Message Date
Chris Lattner
54d077797b Check to see if all blocks are extractible first. 
llvm-svn: 13491
 2004-05-12 16:08:01 +00:00
Chris Lattner
cf43edc33e Don't leave dead bytecode.output files around if the optimizer/block extractor crashes. 
llvm-svn: 13477
 2004-05-12 02:55:45 +00:00
Chris Lattner
9bb62d5754 Implement the final missing bits for block extractor support. Now bugpoint 
can extract basic blocks up to the limit of the block extractor implementation.

llvm-svn: 13475
 2004-05-12 02:43:24 +00:00
Chris Lattner
bc83892156 Implement basic block extraction for the miscompilation debugger. This still needs 
two things: the FIXME in ExtractBlocks needs to be implemented, and the basic block
extractor itself needs to have enough bugs fixed for this to be more or less
useful.

Until the time that this is generally useful, it is hidden behind the new bugpoint
-enable-block-extraction option.  I hope to get the FIXME done tonight.

Also of note, this patch adds a -extract-bbs option to bugpoint which can be used
to debug the block extractor.  (hint hint Misha :)

llvm-svn: 13471
 2004-05-11 21:54:13 +00:00
Chris Lattner
c698aea90a A class that is meant to be a base class should have a virtual destructor 
llvm-svn: 13470
 2004-05-11 20:41:07 +00:00
Brian Gaeke
e99247512f Allow the user to set the LLVMINTERP environment variable as a workaround, for 
when they have to run a gccld shell script without having lli in their path.
This is intended to address Bug 289.

Also, emit the traditional syntax ${1+"$@"} for passing all of a shell script's
args to a subprocess. If you have arguments that have spaces in them, $* will
not preserve the quoting (i.e., the quoted string "foo bar" as an argument will
end up as two arguments "foo" "bar" to lli.)

llvm-svn: 13414
 2004-05-07 21:47:36 +00:00
Chris Lattner
d055a56886 Use the new commandline flag to allow us to call bugpoint like this: 
bugpoint ... --tool-args -enable-correct-eh-support -regalloc=linearscan --args -- -foo

So that tool-args option gets the -enable-correct-eh-support -regalloc=linearscan flags instead of bugpoint.

llvm-svn: 13389
 2004-05-06 22:05:35 +00:00
Chris Lattner
f1cb30f481 Remove a really old comment 
llvm-svn: 13385
 2004-05-06 19:29:58 +00:00
Brian Gaeke
433b49b796 Add --tool-args flag which lets you pass arguments to llc or lli. 
This is intended to address Bug 40.

llvm-svn: 13358
 2004-05-04 21:09:16 +00:00
Chris Lattner
7902d8fd02 Teach bugpoint to be a little bit smarter and avoid repeating work 
llvm-svn: 13132
 2004-04-23 20:36:51 +00:00
Misha Brukman
2c7503786d Add command-line option to select whether to isolate or delete function from 
module. Default is `isolate' as before.

llvm-svn: 13113
 2004-04-22 23:07:39 +00:00
Misha Brukman
1e9b5281d0 Add a space before result for readability on the command line. 
llvm-svn: 13109
 2004-04-22 20:02:09 +00:00
Misha Brukman
f8b15005bf Add doxygenified comments to functions. 
llvm-svn: 13097
 2004-04-21 18:36:43 +00:00
Alkis Evlogimenos
904f4f9a21 Include cerrno (gcc-3.4 fix) 
llvm-svn: 13091
 2004-04-21 16:11:40 +00:00
Misha Brukman
85b8b45f7b As per Chris, greatly simplify handling of external functions by using the 
wrapper idea uniformly: we can use Value::replaceAllUsesWith() instead of
special-casing by class of user.

llvm-svn: 13063
 2004-04-19 03:36:47 +00:00
Misha Brukman
eba5545346 * Reorder #includes 
* Wrap a long line

llvm-svn: 13061
 2004-04-19 03:12:35 +00:00
Misha Brukman
e7ccafce7e Finally implement rewriting global initializers which use external functions 
by creating an internal wrapper function with same signature as the external
function, and use it instead of the "real" function.

The wrapper then calls the external function using the same JIT function
resolution API that has been used before for rewriting instructions, since the
wrapper has an explicit call instruction which we can rewrite.

llvm-svn: 13054
 2004-04-19 01:12:01 +00:00
Chris Lattner
0caf28f4ff Move loop optimization passes up, add loop unroller 
llvm-svn: 13030
 2004-04-18 05:21:01 +00:00
Misha Brukman
ab36a84bda Don't use invalid HTML in a doxygen comment. 
llvm-svn: 12962
 2004-04-15 15:23:45 +00:00
Chris Lattner
0bb60b108d Add a couple more IPO's 
llvm-svn: 12863
 2004-04-12 05:38:15 +00:00
Chris Lattner
4b1e880424 finegrainify namespacification 
llvm-svn: 12862
 2004-04-12 05:38:01 +00:00
Chris Lattner
903a90b9de Disambiguate symbols after loop extraction so that we can diagnose a code 
generator bug if multiple loops are extracted from a function.

llvm-svn: 12847
 2004-04-11 23:52:35 +00:00
Chris Lattner
ff16e6b701 Fix an obvious bug in the refactoring I did a few days ago 
llvm-svn: 12797
 2004-04-09 22:28:33 +00:00
Chris Lattner
caefe03e39 Disable strict alias analysis in the backend c compiler, as the code we 
generate is not TBAA safe.

llvm-svn: 12774
 2004-04-08 15:18:59 +00:00
Chris Lattner
825c162788 Revert previous patch, I'm a moron :) 
llvm-svn: 12773
 2004-04-08 15:18:03 +00:00
Chris Lattner
5608c6da7e Right, we break strict aliasing requirements. Make sure to disable strict 
aliasing in the C compiler.

llvm-svn: 12772
 2004-04-08 15:14:43 +00:00
Misha Brukman
e2d817bc26 Wrap at 80 cols. 
llvm-svn: 12701
 2004-04-06 17:04:30 +00:00
Chris Lattner
1a40aaf3ba Minor cleanups 
llvm-svn: 12700
 2004-04-06 16:54:04 +00:00
Chris Lattner
3259504cce Add a new gccld -native-cbe option which causes gccld to generate native code 
for the application with the C backend instead of the native LLVM code generator

llvm-svn: 12698
 2004-04-06 16:43:13 +00:00
Chris Lattner
d2c51f2cc3 Merge the code generator miscompilation code into the optimizer miscompilation 
code.  This "instantly" gives us loop-extractor power to assist with the
debugment of our nasty codegen issues.  :)

llvm-svn: 12678
 2004-04-05 22:58:16 +00:00
Chris Lattner
0442a87f47 Make a method public 
llvm-svn: 12677
 2004-04-05 22:01:48 +00:00
Chris Lattner
f856e42795 Minor cleanups, remove some old debug code 
llvm-svn: 12676
 2004-04-05 21:37:55 +00:00
Chris Lattner
5c943cebf1 Refactor and genericize code 
llvm-svn: 12675
 2004-04-05 21:37:38 +00:00
Chris Lattner
5ac19e9daf Make full use of the Mangler interface to simplify code 
llvm-svn: 12671
 2004-04-05 19:31:02 +00:00
Chris Lattner
61dcf6709b Minor change 
llvm-svn: 12655
 2004-04-05 01:31:50 +00:00
Chris Lattner
f592eff643 Remove obsolete analyses 
llvm-svn: 12634
 2004-04-02 20:56:33 +00:00
Chris Lattner
5ad71e4688 Tweak libraries for scev changes 
llvm-svn: 12625
 2004-04-02 20:32:46 +00:00
Chris Lattner
b9a26ff8fc Minor speedup 
llvm-svn: 12612
 2004-04-02 16:28:32 +00:00
Chris Lattner
ec5b2f9597 minor formatting change 
llvm-svn: 12606
 2004-04-02 06:32:45 +00:00
Chris Lattner
950f3fac90 Fix two pretty serious bugs: 
1. Each time the loop extractor extracted a loop, we would leak a module.
  2. When we extracted a loop, we didn't add the new function to the list of
     miscompiled functions.  Thus if the bug was in a loop nest and we
     extracted it, we could actually *LOSE THE BUG*, which is very bad.

With these patches, bugpoint has successfully found a bug for me in a function
with several nested loops, and cut it down to just one of them. :) :)

llvm-svn: 12605
 2004-04-02 06:32:17 +00:00
Chris Lattner
54aa691a5c Fix a fairly nasty bug that prevented bugpoint from working quite right when 
hacking on programs with two functions that have the same name.

llvm-svn: 12604
 2004-04-02 06:30:33 +00:00
Chris Lattner
b3f5ab8d5b If the program returns a non-zero exit value, don't leave files laying 
around

llvm-svn: 12603
 2004-04-02 05:33:06 +00:00
Chris Lattner
a262913211 Fix wonky header 
Address PR305: LLVM tools will happily spew bytecode onto your terminal

llvm-svn: 12602
 2004-04-02 05:06:57 +00:00
Chris Lattner
e45504d887 When loop extraction succeeds, make sure to map the function pointers over 
to avoid dangling references.

llvm-svn: 12470
 2004-03-17 17:42:09 +00:00
Chris Lattner
e2b4b9ca3f Fix an inverted condition that causes us to think that loop extraction 
accomplished something when it really did not.  This does not fix the bigger problem tho.

llvm-svn: 12469
 2004-03-17 17:37:18 +00:00
Chris Lattner
9a8238e477 Fix an iterator invalidation problem in a "buggy" pass 
llvm-svn: 12468
 2004-03-17 17:29:08 +00:00
Brian Gaeke
f6f76523cb Add a better head-of-file comment. 
llvm-svn: 12447
 2004-03-16 21:47:20 +00:00
Chris Lattner
83c74abb8e Fix thinko, and PR292 
llvm-svn: 12426
 2004-03-16 01:51:54 +00:00
Chris Lattner
4ef444f59b After reducing a miscompiled program down to the functions which are being 
miscompiled, try to use the loop extractor to reduce the program down to a
loop nest that is being miscompiled.  In practice, the loop extractor appears
to have too many bugs for this to be useful, but hopefully they will be fixed
soon...

llvm-svn: 12398
 2004-03-14 22:08:00 +00:00
Chris Lattner
acf045e970 Fix a minor bug in runPassesOn 
llvm-svn: 12397
 2004-03-14 21:37:41 +00:00