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Author SHA1 Message Date
Chris Lattner
52cac3c555 foo bug291 bar PR 291 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12430 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 05:17:07 +00:00
Chris Lattner
ad32064a0e PR291 
Bug 291!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12429 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 05:16:05 +00:00
Chris Lattner
a1d1fcec93 // Testcase from Bug 291 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12428 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 05:14:47 +00:00
Chris Lattner
002be76733 Add some missing functions. Make sure to handle calls together in case the 
client has another VN implementation that can VN calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12427 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 03:41:35 +00:00
Chris Lattner
002dbddccd Fix thinko, and PR292 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12426 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 01:51:54 +00:00
Chris Lattner
6ae9eb1566 Fix PR294 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12425 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 01:45:55 +00:00
Alkis Evlogimenos
63dd4ff809 Add LAHF instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12424 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 17:20:14 +00:00
Chris Lattner
6dd196f762 Restore old inlining heuristic. As the comment indicates, this is a nasty 
horrible hack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12423 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 06:38:14 +00:00
Chris Lattner
fcead4f426 Ok, the assertion was bogus. Calls that do not read/write memory should not 
have an alias set, just like adds and subtracts don't.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12422 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 06:28:07 +00:00
Chris Lattner
df209fcc7e This assertion is bogus now that calls do not necessarily read/write memory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12421 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 06:24:15 +00:00
Chris Lattner
46234fd97f Add counters for the number of calls elimianted 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12420 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 05:46:59 +00:00
Chris Lattner
5a6e947f1d Implement CSE of call instructions in the most trivial case. This implements 
GCSE/call_cse.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12419 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 05:44:59 +00:00
Chris Lattner
142c304dbb New testcase for CSE of call instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12418 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 05:44:29 +00:00
Chris Lattner
bbcc147220 Fix a minor bug, implementing GCSE/call_pure_function.ll 
Also, add some stuff I missed before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12417 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:18:28 +00:00
Chris Lattner
66d0884954 Make sure that pure calls don't kill loads 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12416 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:17:53 +00:00
Chris Lattner
118dd0ce3d Implement LICM of calls in simple cases. This is sufficient to move around 
sin/cos/strlen calls and stuff.  This implements:
  LICM/call_sink_pure_function.ll
  LICM/call_sink_const_function.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12415 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:11:30 +00:00
Chris Lattner
65a88e83e3 New testcases to test LICM of call instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12414 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:10:08 +00:00
Chris Lattner
5b5f7c11d0 Don't be COMPLETELY pessimistic in the face of function calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:08:36 +00:00
Chris Lattner
c87f0bb345 Tweak argument 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12412 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:08:18 +00:00
Chris Lattner
5cb66e24d4 Deinline a couple of methods. Improve comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12411 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:07:59 +00:00
Chris Lattner
992860c44e Deinline some virtual methods, provide better mod/ref answers through the 
use of the boolean queries


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12410 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:07:29 +00:00
Chris Lattner
b79d79297d Pass through the boolean queries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12409 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:06:46 +00:00
Chris Lattner
4244bb5bbd Teach basicaa about some stdc functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12408 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 03:36:49 +00:00
Chris Lattner
3e295b1b59 Add two new methods which can be used to enable a bunch of transformations 
in common cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12407 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 01:58:54 +00:00
Chris Lattner
15d443b566 Mostly cosmetic improvements. Do fix the bug where a global value was considered an input. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 01:26:44 +00:00
Chris Lattner
0de632bfae Assert that input blocks meet the invariants we expect 
Simplify the input/output finder.  All elements of a basic block are
instructions.  Any used arguments are also inputs.  An instruction can only
be used by another instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12405 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 01:18:23 +00:00
Chris Lattner
e94fd1963d New testcase that causes the code extractor to generate bogus code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12404 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 00:08:49 +00:00
Chris Lattner
5156c39d64 Fix several bugs in the loop extractor. In particular, subloops were never 
extracted, and a function that contained a single top-level loop never had
the loop extracted, regardless of how much non-loop code there was.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12403 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 00:02:02 +00:00
Chris Lattner
65826bf435 No correctness fixes here, just minor qoi fixes: 
* Don't insert a branch to the switch instruction after the call, just
  make it a single block.
* Insert the new alloca instructions in the entry block of the original
  function instead of having them execute dynamically
* Don't make the default edge of the switch instruction go back to the switch.
  The loop extractor shouldn't create new loops!
* Give meaningful names to the alloca slots and the reload instructions
* Some minor code simplifications


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12402 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 23:43:24 +00:00
Chris Lattner
12f390e9c0 Simplify code a bit, and fix bug CodeExtractor/2004-03-14-NoSwitchSupport.ll 
This also implements a two minor improvements:
  * Don't insert live-out stores IN the region, insert them on the code path
    that exits the region
  * If the region is exited to the same block from multiple paths, share the
    switch statement entry, live-out store code, and the basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12401 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 23:05:49 +00:00
Chris Lattner
0e06674287 Simplify the code a bit by making the collection of basic blocks to extract 
a member of the class.  While we're at it, turn the collection into a set
instead of a vector to improve efficiency and make queries simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12400 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 22:34:55 +00:00
Chris Lattner
3b04a7a131 New testcase that crashes the loop extractor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12399 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 22:16:52 +00:00
Chris Lattner
a1cf1c8c87 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...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12398 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 22:08:00 +00:00
Chris Lattner
44a64bccac Fix a minor bug in runPassesOn 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12397 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 21:37:41 +00:00
Chris Lattner
0a00256900 Add a new "AutoDebugCrashes" option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12396 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 21:21:57 +00:00
Chris Lattner
a75766a6c1 Refactor to use a new method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12395 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 21:17:22 +00:00
Chris Lattner
3b6441e105 Add new method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12394 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 21:17:03 +00:00
Chris Lattner
efdc0b5057 Refactor and clean up a bunch more code. No major functionality changes. 
* Make several methods of bugdriver global functions (ParseInputFile, PrintFunctionList)
 * Make PrintFunctionList truncate the output after 10 entries, like the crash debugger
   did.  This allows code sharing.
 * Add a couple of methods to BugDriver that allows us to eliminate some friends
 * Improve comments in ExtractFunction.cpp
 * Make classes that used to be friends up bugdriver now live in anon namespaces
 * Rip a bunch of functionality in the miscompilation tester into a new
   TestMergedProgram function for future code sharing.
 * Fix a bug in the miscompilation tester induced in my last checkin


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12393 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 20:50:42 +00:00
Alkis Evlogimenos
a1a7148c4d Another API change to MRegisterInfo::foldMemoryOperand. Instead of a 
MachineBasicBlock::iterator take a MachineInstr*.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12392 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 20:14:27 +00:00
Chris Lattner
7546c3884a Add a method to extract a loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12391 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 20:02:07 +00:00
Chris Lattner
41bc0b069c Split into two passes. Now there is the general loop extractor, usable on 
the command line, and the single loop extractor, usable by bugpoint


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12390 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 20:01:36 +00:00
Chris Lattner
7bc91c62f0 Rename createLoopExtractorPass to createSingleLoopExtractorPass 
Doxygenify


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 20:00:37 +00:00
Chris Lattner
5eda1f2f65 add a fixme 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12388 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 19:31:00 +00:00
Chris Lattner
be21ca54e0 Refactor all of the "splitting a module into two pieces" code to avoid 
code duplication.  Also, don't use ReduceMiscompilingFunctions::TestFuncs
to print out the final message.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12387 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 19:27:19 +00:00
Alkis Evlogimenos
39354c99a1 Change MRegisterInfo::foldMemoryOperand to return the folded 
instruction to make the API more flexible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12386 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 07:19:51 +00:00
Chris Lattner
97836fad2c Passes don't print stuff! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12385 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:17:53 +00:00
Chris Lattner
bf9eaddfb0 Do not create empty basic blocks when the lowerswitch pass expects blocks to 
be non-empty!  This fixes LowerSwitch/2004-03-13-SwitchIsDefaultCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12384 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:14:31 +00:00
Chris Lattner
6cc83750b8 New testcase that crashes the -lowerswitch pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12383 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:13:57 +00:00
Chris Lattner
bb41156c0c Minor random cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12382 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:01:47 +00:00
Chris Lattner
16d0eb0468 FunctionPass's should not define their own 'run' method. 
Require 'simplified' loops, not just raw natural loops.  This fixes
CodeExtractor/2004-03-13-LoopExtractorCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12381 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:01:06 +00:00