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11253 Commits

Author SHA1 Message Date
Chris Lattner fb87cdecd8 Mostly cosmetic improvements. Do fix the bug where a global value was considered an input. 
llvm-svn: 12406
 2004-03-15 01:26:44 +00:00
Chris Lattner 73ab1fa7c8 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.

llvm-svn: 12405
 2004-03-15 01:18:23 +00:00
Chris Lattner fec74e7ce2 New testcase that causes the code extractor to generate bogus code. 
llvm-svn: 12404
 2004-03-15 00:08:49 +00:00
Chris Lattner 2f155d8734 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.

llvm-svn: 12403
 2004-03-15 00:02:02 +00:00
Chris Lattner 5b2072ecd3 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

llvm-svn: 12402
 2004-03-14 23:43:24 +00:00
Chris Lattner b4d8bf365c 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.

llvm-svn: 12401
 2004-03-14 23:05:49 +00:00
Chris Lattner 9c431f6c44 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.

llvm-svn: 12400
 2004-03-14 22:34:55 +00:00
Chris Lattner 99e9b17641 New testcase that crashes the loop extractor 
llvm-svn: 12399
 2004-03-14 22:16:52 +00:00
Chris Lattner bcec7875fb 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 0e6549b8c7 Fix a minor bug in runPassesOn 
llvm-svn: 12397
 2004-03-14 21:37:41 +00:00
Chris Lattner 37117a0f6a Add a new "AutoDebugCrashes" option 
llvm-svn: 12396
 2004-03-14 21:21:57 +00:00
Chris Lattner 6ce2d03352 Refactor to use a new method 
llvm-svn: 12395
 2004-03-14 21:17:22 +00:00
Chris Lattner 1a5c540c27 Add new method 
llvm-svn: 12394
 2004-03-14 21:17:03 +00:00
Chris Lattner fd72bed301 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

llvm-svn: 12393
 2004-03-14 20:50:42 +00:00
Alkis Evlogimenos 4837f6c0d9 Another API change to MRegisterInfo::foldMemoryOperand. Instead of a 
MachineBasicBlock::iterator take a MachineInstr*.

llvm-svn: 12392
 2004-03-14 20:14:27 +00:00
Chris Lattner 3fe96bc9fd Add a method to extract a loop 
llvm-svn: 12391
 2004-03-14 20:02:07 +00:00
Chris Lattner a1672c1bd8 Split into two passes. Now there is the general loop extractor, usable on 
the command line, and the single loop extractor, usable by bugpoint

llvm-svn: 12390
 2004-03-14 20:01:36 +00:00
Chris Lattner f624c99379 Rename createLoopExtractorPass to createSingleLoopExtractorPass 
Doxygenify

llvm-svn: 12389
 2004-03-14 20:00:37 +00:00
Chris Lattner 5a5e414bc0 add a fixme 
llvm-svn: 12388
 2004-03-14 19:31:00 +00:00
Chris Lattner 567543f09e 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.

llvm-svn: 12387
 2004-03-14 19:27:19 +00:00
Alkis Evlogimenos 48da2f8a6d Change MRegisterInfo::foldMemoryOperand to return the folded 
instruction to make the API more flexible.

llvm-svn: 12386
 2004-03-14 07:19:51 +00:00
Chris Lattner 0137de5ecb Passes don't print stuff! 
llvm-svn: 12385
 2004-03-14 04:17:53 +00:00
Chris Lattner b68659552a Do not create empty basic blocks when the lowerswitch pass expects blocks to 
be non-empty!  This fixes LowerSwitch/2004-03-13-SwitchIsDefaultCrash.ll

llvm-svn: 12384
 2004-03-14 04:14:31 +00:00
Chris Lattner e7ae4a8cb4 New testcase that crashes the -lowerswitch pass 
llvm-svn: 12383
 2004-03-14 04:13:57 +00:00
Chris Lattner 4fca71eb44 Minor random cleanups 
llvm-svn: 12382
 2004-03-14 04:01:47 +00:00
Chris Lattner 6c3e8c78cf 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

llvm-svn: 12381
 2004-03-14 04:01:06 +00:00
Chris Lattner d078812f96 If a block is dead, dominators will not be calculated for it. Because of this 
loop information won't see it, and we could have unreachable blocks pointing to
the non-header node of blocks in a natural loop.  This isn't tidy, so have the
loopsimplify pass clean it up.

llvm-svn: 12380
 2004-03-14 03:59:22 +00:00
Chris Lattner 9ece94b02b Catch some more cases of broken code. The loop extractor seems to be creating 
situations where there is a branch that goes to a block in another function.

llvm-svn: 12379
 2004-03-14 03:23:54 +00:00
Chris Lattner 3684469326 Verify functions as they are produced if -debug is specified. Reduce 
curly braceage

llvm-svn: 12378
 2004-03-14 03:17:22 +00:00
Chris Lattner b870ca7766 verifyFunction has been broken for a long time now. Fix it. 
llvm-svn: 12377
 2004-03-14 03:16:15 +00:00
Chris Lattner d828ad5089 New testcase that crashes the loop extractor 
llvm-svn: 12376
 2004-03-14 03:03:59 +00:00
Chris Lattner 78a996aec4 Move prototype to IPO.h instead of Scalar.h 
Make sure that the file interface header (IPO.h) is included first
remove dead #incldue

llvm-svn: 12375
 2004-03-14 02:37:16 +00:00
Chris Lattner 6d24a7ce8a Move loop extractor to the IPO header 
llvm-svn: 12374
 2004-03-14 02:36:34 +00:00
Chris Lattner 692a47aeb9 Indent anon namespace properly, add copyright block 
llvm-svn: 12373
 2004-03-14 02:34:07 +00:00
Chris Lattner 41ec709e00 Move to the IPO library. Utils shouldn't contain passes. 
llvm-svn: 12372
 2004-03-14 02:32:27 +00:00
Chris Lattner 96a7fbd503 Remove dead file 
llvm-svn: 12371
 2004-03-14 02:13:57 +00:00
Chris Lattner 8eebc49884 DemoteRegToStack got moved from DemoteRegToStack.h to Local.h 
llvm-svn: 12368
 2004-03-14 02:13:38 +00:00
Chris Lattner 3b18771d9f Move DemoteRegToStack prototype out of DemoteRegToStack.h to this file. 
llvm-svn: 12367
 2004-03-14 02:13:07 +00:00
Chris Lattner b911de4c39 Document stuff that is known to be broken 
llvm-svn: 12366
 2004-03-14 02:03:02 +00:00
Chris Lattner 7d2a539735 Add some debugging output 
Fix InstCombine/2004-03-13-InstCombineInfLoop.ll which caused an infinite
loop compiling (I think) povray.

llvm-svn: 12365
 2004-03-13 23:54:27 +00:00
Chris Lattner e561cb51de New testcase, distilled from povray I think. 
llvm-svn: 12364
 2004-03-13 23:53:04 +00:00
Chris Lattner 2dc85b27e4 This change makes two big adjustments. 
* Be a lot more accurate about what the effects will be when inlining a call
   to a function when an argument is an alloca.
 * Dramatically reduce the penalty for inlining a call in a large function.
   This heuristic made it almost impossible to inline a function into a large
   function, no matter how small the callee is.

llvm-svn: 12363
 2004-03-13 23:15:45 +00:00
Chris Lattner 797cb2f6c1 This little patch speeds up the loop used to update the dominator set analysis. 
On the testcase from GCC PR12440, which has a LOT of loops (1392 of which require
preheaders to be inserted), this speeds up the loopsimplify pass from 1.931s to
0.1875s.  The loop in question goes from 1.65s -> 0.0097s, which isn't bad. All of
these times are a debug build.

This adds a dependency on DominatorTree analysis that was not there before, but
we always had dominatortree available anyway, because LICM requires both loop
simplify and DT, so this doesn't add any extra analysis in practice.

llvm-svn: 12362
 2004-03-13 22:01:26 +00:00
Chris Lattner 024385ba5f Turn on argument promotion in gccas. This can give us substantially better 
code in cases where the file has lots of static functions or anon namespaces.

llvm-svn: 12361
 2004-03-13 21:38:35 +00:00
Chris Lattner 84d0f63804 Option no more 
llvm-svn: 12360
 2004-03-13 19:36:30 +00:00
Chris Lattner 0ee372cfe3 Fix the "infinite looping unless you disable adce" bug 
Also remove an option to disable adce :)

llvm-svn: 12359
 2004-03-13 19:35:54 +00:00
Chris Lattner 652eb53dad Fix a tiny bug that caused an incorrect assertion failure poolallocating 
boxed-sim.

llvm-svn: 12358
 2004-03-13 01:14:23 +00:00
Chris Lattner 699aa70f0c It helps if I save the file. :) 
llvm-svn: 12357
 2004-03-13 00:24:52 +00:00
Chris Lattner 071a5e5649 Rename the intrinsic enum values for llvm.va_* from Intrinsic::va_* to 
Intrinsic::va*.  This avoid conflicting with macros in the stdlib.h file.

llvm-svn: 12356
 2004-03-13 00:24:00 +00:00
Chris Lattner 022167f13b Implement sub.ll:test14 
llvm-svn: 12355
 2004-03-13 00:11:49 +00:00
Chris Lattner d689a5eb9c Oh right, casts can interfere. Test this too 
llvm-svn: 12354
 2004-03-13 00:11:38 +00:00
Chris Lattner 92295c5031 Implement InstCombine/sub.ll:test12 & test13 
llvm-svn: 12353
 2004-03-12 23:53:13 +00:00
Chris Lattner b4e933ba14 new testcases 
llvm-svn: 12352
 2004-03-12 23:52:51 +00:00
Chris Lattner f9e69b4553 Fix a couple of minor problems. Because PHI nodes can use themselves, this 
could cause infinite loops.  Also, getUnderlyingObject can return null

llvm-svn: 12351
 2004-03-12 23:12:55 +00:00
John Criswell 13875932b2 Performed some updates on the new options to these command line tools. 
llvm-svn: 12350
 2004-03-12 22:45:35 +00:00
Chris Lattner a036253872 Implement mod/ref analysis for a trivial case where locals don't escape. 
This comes up when you have a local array on the stack and you never pass
the address of elements around.

llvm-svn: 12349
 2004-03-12 22:39:00 +00:00
Chris Lattner 1f91c54600 new testcase 
llvm-svn: 12348
 2004-03-12 22:38:31 +00:00
Brian Gaeke afb74be0ce Revise comment and error message for the Bug 38 situation. Also, make it 
print out the name of the function being used.

llvm-svn: 12347
 2004-03-12 21:37:46 +00:00
John Criswell 5d6345a01b Fixed grammar typo. 
llvm-svn: 12345
 2004-03-12 21:29:42 +00:00
Brian Gaeke 1694dafece Make -print-machineinstrs show us the code both before and after reg. alloc. 
llvm-svn: 12344
 2004-03-12 21:19:08 +00:00
John Criswell eb55b52a58 Fixed grammar typo. 
llvm-svn: 12343
 2004-03-12 21:19:06 +00:00
John Criswell faba462a9a Added minor information on C++. 
llvm-svn: 12341
 2004-03-12 20:42:16 +00:00
John Criswell 64f13ab753 Updated to LLVM 1.2. 
Added information on getting the LLVM GCC front end from CVS.
Added new configure script options.
Made other minor corrections and modifications.

llvm-svn: 12340
 2004-03-12 20:31:37 +00:00
Chris Lattner 6e8d083a8b Fix PR266: Make Module Not Inherit From Annotable 
llvm-svn: 12339
 2004-03-12 19:51:16 +00:00
John Criswell d89dbd0236 Point to the new license (includes year 2004). 
Changed crtend.o to libcrtend.a.

llvm-svn: 12338
 2004-03-12 18:20:15 +00:00
John Criswell 50f289ace1 Added a header indicating that the Linux and MacOS configure procedures are 
the same.

Added LLVM copyright and warranty disclaimer information.

llvm-svn: 12337
 2004-03-12 18:02:17 +00:00
Alkis Evlogimenos 9884bda541 Add support for a wider range of CMOV instructions. 
llvm-svn: 12336
 2004-03-12 17:59:56 +00:00
John Criswell 18d7b688cf Updated copyright to year 2004. 
llvm-svn: 12335
 2004-03-12 17:29:20 +00:00
Misha Brukman 4483c9b864 Simplify code to process CallSites (thanks to Chris). 
llvm-svn: 12334
 2004-03-12 16:20:49 +00:00
Misha Brukman 8340686112 Test the mod/ref analysis in DSA. 
llvm-svn: 12333
 2004-03-12 06:17:22 +00:00
Misha Brukman a447feac33 Keep transitively-required passes alive for queries to work after the initial 
user pass is destroyed.

llvm-svn: 12332
 2004-03-12 06:16:28 +00:00
Misha Brukman bf28cf6b7d Evaluate ModRef information in addition to regular ol' pointer analysis. 
llvm-svn: 12331
 2004-03-12 06:15:08 +00:00
Misha Brukman 362841dccc Implement getModRefInfo() for DSA to calculate whether a function modifies or 
references a pointer.

llvm-svn: 12330
 2004-03-12 06:14:22 +00:00
Misha Brukman 386ef6dec8 Add AnalysisUsage::addRequiredTransitive() to keep analysis info alive for 
future queries by clients.

llvm-svn: 12329
 2004-03-12 06:13:15 +00:00
Chris Lattner fd747f8db8 test instruction combiner opts for select instruction 
llvm-svn: 12328
 2004-03-12 06:01:00 +00:00
Chris Lattner 8988f92470 Teach vim about the select instruction. Allow it to forget about the long-dead 
not instruction.

llvm-svn: 12327
 2004-03-12 05:55:07 +00:00
Chris Lattner be3c688488 Teach emacs about the select instruction 
llvm-svn: 12326
 2004-03-12 05:54:48 +00:00
Chris Lattner 75648e7ae4 Add support for checking the select instruction 
llvm-svn: 12325
 2004-03-12 05:54:31 +00:00
Chris Lattner 8337d4462f Know the opcode name of the select instruction 
llvm-svn: 12324
 2004-03-12 05:54:20 +00:00
Chris Lattner 6e415c06c2 Add support for select constant expressions. Use reserve a bit more to avoid 
memory wasteage.

llvm-svn: 12323
 2004-03-12 05:54:04 +00:00
Chris Lattner 16375e30b0 Add new function 
llvm-svn: 12322
 2004-03-12 05:53:41 +00:00
Chris Lattner 6ea4b52903 Teach the constant folder how to do select instructions 
llvm-svn: 12321
 2004-03-12 05:53:32 +00:00
Chris Lattner 52bd5cb967 Print select instructions correctly 
llvm-svn: 12320
 2004-03-12 05:53:14 +00:00
Chris Lattner cb015ee6c0 Add constant folding wrapper support for select instructions. 
llvm-svn: 12319
 2004-03-12 05:53:03 +00:00
Chris Lattner 59db22dcd4 Add sccp support for select instructions 
llvm-svn: 12318
 2004-03-12 05:52:44 +00:00
Chris Lattner b909e8b0d4 Add trivial optimizations for select instructions 
llvm-svn: 12317
 2004-03-12 05:52:32 +00:00
Chris Lattner 65a64e1e7a ADd support for select instructions 
llvm-svn: 12316
 2004-03-12 05:52:14 +00:00
Chris Lattner e7c9f6f7ae Write select instructions to bytecode 
llvm-svn: 12315
 2004-03-12 05:52:01 +00:00
Chris Lattner 92412466b6 Read select instrs from bytecode 
llvm-svn: 12314
 2004-03-12 05:51:49 +00:00
Chris Lattner 6536f0c35f Allow parsing select instruction and constant expr 
llvm-svn: 12313
 2004-03-12 05:51:36 +00:00
Chris Lattner 26cca63a7e Add the visitSelectInst visitor method 
llvm-svn: 12312
 2004-03-12 05:51:22 +00:00
Chris Lattner 5dec674075 Add the SelectInst class 
llvm-svn: 12311
 2004-03-12 05:51:05 +00:00
Chris Lattner 439b128ce7 Add the Instruction::Select enum 
llvm-svn: 12310
 2004-03-12 05:50:53 +00:00
Chris Lattner e75c0c0eac Add support for select constant exprs 
llvm-svn: 12309
 2004-03-12 05:50:39 +00:00
Chris Lattner ec98a76eb6 This is no longer an open project 
llvm-svn: 12308
 2004-03-12 05:50:24 +00:00
Chris Lattner b53c28d6ca Cleanup the cast section, add the select instruction 
llvm-svn: 12307
 2004-03-12 05:50:16 +00:00
Chris Lattner b24b5165dc New testcase 
llvm-svn: 12306
 2004-03-12 05:50:02 +00:00
Misha Brukman 96d3b0a6de Make code more readable. 
llvm-svn: 12305
 2004-03-12 00:58:41 +00:00
Misha Brukman 1df51ed4e5 Fix indentation. 
llvm-svn: 12298
 2004-03-11 23:53:51 +00:00
Misha Brukman 505a0838f6 Move implementations of functions here, which avoids #including <cstdlib> in the 
header file and all those who #include it.

llvm-svn: 12297
 2004-03-11 23:52:43 +00:00
Misha Brukman 5c24fb6b48 Move function implementations to a .cpp file, avoid #including <cstdlib> here. 
llvm-svn: 12296
 2004-03-11 23:52:03 +00:00
Misha Brukman d8abb840f2 Forward-declare templates for fix compilation when Argument.h is included first. 
llvm-svn: 12295
 2004-03-11 23:42:24 +00:00
Misha Brukman 94eeb90cd4 Doxygenified and cleand up comments. 
llvm-svn: 12294
 2004-03-11 23:08:20 +00:00
Misha Brukman fff0ac8c3d Miscellaneous additions are a separate section. 
llvm-svn: 12293
 2004-03-11 21:26:29 +00:00
Brian Gaeke 24d24e3e5b Make sure libcrtend.a gets installed when you make install-bytecode. 
llvm-svn: 12292
 2004-03-11 20:55:23 +00:00
Brian Gaeke 14e98b9d96 Get rid of the abort in PhyRegAlloc::finishSavingState(). 
Make an explicit call to it from runOnFunction() if we know we're supposed to
write into the global. This is lame (esp. the const_cast), but it solves
the problem.

llvm-svn: 12291
 2004-03-11 19:46:30 +00:00
Brian Gaeke c028910d25 Give pass a name 
llvm-svn: 12290
 2004-03-11 19:23:15 +00:00
Misha Brukman d313bdfa43 Fix compilation on Sparc: assert(0) => abort() 
llvm-svn: 12289
 2004-03-11 19:08:24 +00:00
Misha Brukman aed39f9d1e SparcV8 removed until it grows up becomes a mature backend. 
llvm-svn: 12288
 2004-03-11 18:16:33 +00:00
Alkis Evlogimenos 4b98c4412f Fix spelling. 
llvm-svn: 12287
 2004-03-11 10:14:21 +00:00
Brian Gaeke 5935e0a002 In PhyRegAlloc::saveState(), dump Arguments' saved-state, and try to 
make the output more compact.

Divorce state-saving from the doFinalization method; for some reason it's not
getting called when I want it to, at Reoptimizer time. Put the guts in
PhyRegAlloc::finishSavingState(). Put an abort() in it so that I can be really
really sure that it's getting called.

Update comments.

llvm-svn: 12286
 2004-03-11 06:45:52 +00:00
Brian Gaeke 44a540e869 Remove ghostly directory from the build 
llvm-svn: 12285
 2004-03-11 04:42:41 +00:00
Alkis Evlogimenos 9d08818de9 Embed a floating frame of the bugzilla query in the page. This way 
people looking for open projects cannot miss the link :-)

llvm-svn: 12284
 2004-03-11 02:50:35 +00:00
Chris Lattner d2d7ccdb4b Minor additions and cleanups 
llvm-svn: 12279
 2004-03-11 00:50:54 +00:00
Brian Gaeke 0e09916d60 Move all the SaveState options and stuff inton one spot at the top of the file. 
De-constify SaveStateToModule; we have to set both it and SaveRegAllocState
explicitly in the reoptimizer.
Make SaveRegAllocState an 'external location' option.

llvm-svn: 12278
 2004-03-10 22:21:03 +00:00
Brian Gaeke f819263cc1 Only call verifySavedState if SaveRegAllocState is set AND debugging flag is on. 
llvm-svn: 12277
 2004-03-10 22:01:59 +00:00
Chris Lattner d68b5893a6 Bugz fixed 
llvm-svn: 12276
 2004-03-10 21:43:47 +00:00
Chris Lattner 61f57617d7 Fix PR284: [indvars] Induction variable analysis violates LLVM invariants 
llvm-svn: 12275
 2004-03-10 21:42:19 +00:00
Chris Lattner 6fdbd60ed6 New testcase for PR284: [indvars] Induction variable analysis violates LLVM invariants 
llvm-svn: 12274
 2004-03-10 21:41:47 +00:00
Alkis Evlogimenos 1ccca74a65 Add link to bugzilla query of unassigned enhancements. Specific open 
projects like 'port glibc to llvm' or 'improve nightly tester', should
have an unassigned enhancement bug opened for them so that they can be
tracked more easily. Open projects should only list generic projects
like 'compile programs with the LLVM compiler' or 'write a new backend
for target'.

llvm-svn: 12273
 2004-03-10 19:38:33 +00:00
Misha Brukman 12f1eddc90 We need a logo. 
llvm-svn: 12272
 2004-03-10 19:22:29 +00:00
Brian Gaeke 53d2513820 Add brainstorm for a random test vector generator 
llvm-svn: 12271
 2004-03-10 19:15:50 +00:00
Brian Gaeke 73121d9395 Recommend using install-bytecode target 
llvm-svn: 12270
 2004-03-10 19:08:52 +00:00
Brian Gaeke 1eec234f91 My fix for PR274 broke the build on Darwin/PPC. As I'm fairly certain this 
bug only affects Linux systems that use GLIBC, I'm going to put ifdefs around
the array.

llvm-svn: 12269
 2004-03-10 17:38:28 +00:00
Brian Gaeke 0f31060c5a Add support for 'install-bytecode' target, used for ONLY installing 
bytecode-libs.

llvm-svn: 12268
 2004-03-10 17:38:01 +00:00
Brian Gaeke 8f1977ac07 Fix up a seriously outdated comment. 
llvm-svn: 12267
 2004-03-10 17:37:50 +00:00
Chris Lattner 6f61db7f8a New testcase for PR275 
llvm-svn: 12266
 2004-03-10 03:07:45 +00:00
Chris Lattner 30f984671a New testcase for PR276: llvm-g++ does not mangle method names that match stdlib function names 
llvm-svn: 12265
 2004-03-09 22:51:03 +00:00
Chris Lattner b26b6fe9a7 implement new method 
llvm-svn: 12264
 2004-03-09 19:37:06 +00:00
Chris Lattner f53977cd42 new method 
llvm-svn: 12263
 2004-03-09 19:36:59 +00:00
Alkis Evlogimenos 6623cd78f9 Spill explicit physical register defs as well. 
llvm-svn: 12260
 2004-03-09 08:35:13 +00:00
Brian Gaeke 0766126e2e Now that I read it again, this part in particular strikes me as kind of 
pushy and contentious...

llvm-svn: 12259
 2004-03-09 07:20:26 +00:00
Alkis Evlogimenos f234284986 Check if printing of implicit uses is required for all types of shift 
instructions.

llvm-svn: 12258
 2004-03-09 06:10:15 +00:00
Brian Gaeke 75a2efdd6c b00g fixed 
llvm-svn: 12257
 2004-03-09 05:43:59 +00:00
Brian Gaeke 96e450b3b2 Address PR274 - '[JIT] Programs cannot resolve the fstat function' 
by trying to get the compiler to generate an undefined reference for it
and related functions which live in libc_nonshared.a on Linux.

Linkers... sigh.

llvm-svn: 12256
 2004-03-09 05:22:10 +00:00
Brian Gaeke 3a27bd889b Hmm, who left this sitting around in my tree 
llvm-svn: 12255
 2004-03-09 04:49:13 +00:00
Alkis Evlogimenos 8a3f2f3600 Differentiate between extended precision floats (80-bit) and double precision floats (64-bit) 
llvm-svn: 12254
 2004-03-09 03:37:54 +00:00
Alkis Evlogimenos 8ac958bf43 Use newly added API to emit bytes for instructions that gas misassembles 
llvm-svn: 12253
 2004-03-09 03:35:34 +00:00
Alkis Evlogimenos 508b459d12 Add emitInstruction() API so that we can get the bytes of a simple instruction 
llvm-svn: 12252
 2004-03-09 03:34:53 +00:00
Alkis Evlogimenos a7c2da3af5 Constify things a bit 
llvm-svn: 12251
 2004-03-09 03:30:12 +00:00
Chris Lattner c567f402e5 Bug fixed 
llvm-svn: 12250
 2004-03-09 00:59:15 +00:00
Chris Lattner 349910567e Checkin testcase for PR261 
llvm-svn: 12249
 2004-03-09 00:55:58 +00:00
Chris Lattner 0536f8df6e John fixed this bug 
llvm-svn: 12248
 2004-03-09 00:40:49 +00:00
Brian Gaeke d734587436 Change PhyRegAlloc::saveStateForValue()'s arg type to deal with 
AllocInfo.Instruction becoming an int.

llvm-svn: 12247
 2004-03-08 23:22:03 +00:00
Brian Gaeke f0a73a3f42 Save argument list alloc state by recording it as the operands of Instruction 
#-1. Other minor changes to deal with AllocInfo.Instruction becoming an int.

llvm-svn: 12246
 2004-03-08 23:22:02 +00:00
Brian Gaeke 0be7ea7289 Make AllocInfo's Instruction an int, so that we can overload it for arguments. 
(Instruction #-1's operands = argument list).

llvm-svn: 12245
 2004-03-08 23:22:01 +00:00
Misha Brukman b22926616e Fix some spelling and grammar. 
llvm-svn: 12244
 2004-03-08 23:06:46 +00:00
Chris Lattner d6e1b28837 Update the profiling section 
llvm-svn: 12243
 2004-03-08 22:29:35 +00:00
Chris Lattner 9bde783c5c Switch to using edge profiling information as the basic source of profile info 
from using basic block counts.

llvm-svn: 12242
 2004-03-08 22:04:08 +00:00
Chris Lattner d6eda1a9ef Switch over to using edge profile information as the basic profiling representation, 
from basic block counts.

llvm-svn: 12241
 2004-03-08 22:03:45 +00:00
Chris Lattner bd481d588a Refactor implementations 
llvm-svn: 12240
 2004-03-08 21:30:35 +00:00
Chris Lattner 755ffeb292 We don't want to make this a pure interface, as it makes all implementors 
bear the burden of implementing what will be all exactly the same methods.
They just want to provide the information in differing ways.

llvm-svn: 12239
 2004-03-08 21:30:18 +00:00
Chris Lattner b08e4653cb Rearrange some methods, implement the dominates method 
llvm-svn: 12237
 2004-03-08 21:07:12 +00:00
Chris Lattner 63b49d0574 Import the trace class from the reoptimizer 
llvm-svn: 12236
 2004-03-08 20:57:27 +00:00
Chris Lattner 9c222ed4b5 Default to using edge counts 
llvm-svn: 12234
 2004-03-08 20:04:46 +00:00
Chris Lattner c71ea6e3d4 Annotate functions with edge counts as well, if they are available. 
llvm-svn: 12233
 2004-03-08 20:04:32 +00:00
Chris Lattner 5302943ff7 If we have edge counts, we can produce block counts. I've verified that 
using an edge profile to produce block counts gives the exact same numbers
as using a block count directly.

llvm-svn: 12232
 2004-03-08 20:03:52 +00:00
Chris Lattner 96cdd27b65 Adjust to new interface 
llvm-svn: 12231
 2004-03-08 18:51:45 +00:00
Chris Lattner 03745f3e80 Add the ability to put an annotation at the end of a basic block as well. 
llvm-svn: 12230
 2004-03-08 18:51:05 +00:00
Chris Lattner 8b8a0641a1 Add initial support for reading edge counts. This will be improved to enable 
translation of edge counts into block/function counts when possible.

llvm-svn: 12229
 2004-03-08 18:20:18 +00:00
Chris Lattner 178608ee2b Add support for representing edge counts 
llvm-svn: 12228
 2004-03-08 18:19:37 +00:00
Chris Lattner 29ba1be907 Add edge profiling support to the runtime library 
llvm-svn: 12227
 2004-03-08 18:04:31 +00:00
Misha Brukman 3702b9d79b Fix link to license: point to current version in CVS. 
llvm-svn: 12226
 2004-03-08 17:59:31 +00:00
Chris Lattner 721264aecc Initial support for edge profiling 
llvm-svn: 12225
 2004-03-08 17:54:34 +00:00
Chris Lattner dae48f93b0 Split utility functions out of BlockProfiling.cpp 
llvm-svn: 12224
 2004-03-08 17:06:13 +00:00
Chris Lattner b16526108c Remove the comment "Constants must always have an initial value.", which 
is incorrect.  Fix some formatting nastiness.

llvm-svn: 12223
 2004-03-08 16:49:10 +00:00
Chris Lattner d91e676700 finegrainify namespacification 
llvm-svn: 12221
 2004-03-08 16:45:53 +00:00
Chris Lattner e2b27080e7 Insert functions into the module promptly, not lazily. This fixes a bug 
I introduced last night.  Note to self: test the *correct* tree...

llvm-svn: 12220
 2004-03-08 16:14:19 +00:00
Chris Lattner ea0789ca7b Implement test/Regression/Assembler/2004-03-07-FunctionAddressAlignment.llx 
llvm-svn: 12218
 2004-03-08 06:17:35 +00:00
Chris Lattner be3a169d18 New testcase for folding in some important situations. The first two 
come up a lot in the code generated by the C++ front-end for pointers
to member functions.  See PR166.

llvm-svn: 12217
 2004-03-08 06:17:15 +00:00
Chris Lattner c3ecaae16c Remove Module::mutateConstantPointerRef, which is now thankfully dead! 
This is one small step towards the complete obliteration of
ConstantPointerRef's entirely!! Woot!

llvm-svn: 12216
 2004-03-08 06:16:10 +00:00
Chris Lattner 8301a593a9 Remove Module::mutateConstantPointerRef, which is now thankfully dead! 
llvm-svn: 12215
 2004-03-08 06:15:33 +00:00
Chris Lattner 9f4918ab93 Eliminate nightmarish API 
llvm-svn: 12214
 2004-03-08 06:11:10 +00:00
Chris Lattner 16e27f3af3 remove *THANKFULLY* dead method 
llvm-svn: 12213
 2004-03-08 06:10:32 +00:00
Chris Lattner 75998c0885 Eliminate a REALLY HORRIBLE API: mutateReferences, which is gross gross gross. 
llvm-svn: 12212
 2004-03-08 06:09:57 +00:00
Chris Lattner 7e201ecc31 New testcase for PR269 
llvm-svn: 12211
 2004-03-08 05:35:12 +00:00
Chris Lattner f0cbbabea7 Bug fixed 
llvm-svn: 12210
 2004-03-08 04:55:45 +00:00
Chris Lattner 451e10e46a Testcase that crashes the C front-end. 
llvm-svn: 12209
 2004-03-08 04:41:32 +00:00
Chris Lattner 84c697d520 Fix a bug handling globals that are constants, but are still external 
llvm-svn: 12208
 2004-03-08 03:52:24 +00:00
Chris Lattner 98502aae76 Avoid allocating special registers a bit more robustly 
llvm-svn: 12207
 2004-03-08 03:48:07 +00:00
Chris Lattner 0653e1167d New code-quality testcase. 
llvm-svn: 12205
 2004-03-08 02:12:36 +00:00
Chris Lattner 653e662a93 Implement folding explicit load instructions into binary operations. For a 
testcase like this:

int %test(int* %P, int %A) {
        %Pv = load int* %P
        %B = add int %A, %Pv
        ret int %B
}

We now generate:
test:
        mov %ECX, DWORD PTR [%ESP + 4]
        mov %EAX, DWORD PTR [%ESP + 8]
        add %EAX, DWORD PTR [%ECX]
        ret

Instead of:
test:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, DWORD PTR [%ESP + 8]
        mov %EAX, DWORD PTR [%EAX]
        add %EAX, %ECX
        ret

... saving one instruction, and often a register.  Note that there are a lot
of other instructions that could use this, but they aren't handled.  I'm not
really interested in adding them, but mul/div and all of the FP instructions
could be supported as well if someone wanted to add them.

llvm-svn: 12204
 2004-03-08 01:58:35 +00:00
Chris Lattner 1dd6afe6a2 Rearrange and refactor some code. No functionality changes. 
llvm-svn: 12203
 2004-03-08 01:18:36 +00:00
Chris Lattner fe6f2e3e80 Implement ArgumentPromotion/aggregate-promote.ll 
This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference.  This can
enable a LOT of subsequent optimizations in the caller function.

It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference.  When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.

This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well.  For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times.  this is amazingly good considering that
we are using 'basicaa' so far.

llvm-svn: 12202
 2004-03-08 01:04:36 +00:00
Chris Lattner 1f7f22c42c New testcase 
llvm-svn: 12201
 2004-03-08 00:58:19 +00:00
Chris Lattner cc544e57f3 Implement: ArgumentPromotion/chained.ll 
llvm-svn: 12200
 2004-03-07 22:52:53 +00:00
Chris Lattner 332a8bdf31 New testcase for missed case 
llvm-svn: 12199
 2004-03-07 22:52:41 +00:00
Chris Lattner 64b8d697ad Fix another minor bug, exposed by perlbmk 
llvm-svn: 12198
 2004-03-07 22:43:27 +00:00
Chris Lattner 538fee7aa2 Since 'load null' is undefined, we can make it do whatever we want. Returning 
a zero value is the most likely way to cause further simplification, so we do it.

llvm-svn: 12197
 2004-03-07 22:16:24 +00:00
Chris Lattner ac2e2d3bdd Run the new pass in gccld now that it passes all tests 
llvm-svn: 12196
 2004-03-07 22:12:40 +00:00
Chris Lattner 6770842b67 Fix a minor bug and turn debug output into, well, debug output. 
llvm-svn: 12195
 2004-03-07 21:54:50 +00:00
Chris Lattner 1f607f2f2e Add prototype 
llvm-svn: 12194
 2004-03-07 21:30:08 +00:00
Chris Lattner 483ae01c9c New LLVM pass: argument promotion. This version only handles simple scalar 
variables.

llvm-svn: 12193
 2004-03-07 21:29:54 +00:00
Chris Lattner f2b8692b73 New testcase 
llvm-svn: 12192
 2004-03-07 21:28:54 +00:00
Alkis Evlogimenos d6f62ba55b Add memory operand version of conditional move. 
llvm-svn: 12190
 2004-03-07 03:19:11 +00:00
Alkis Evlogimenos cb98644e9b As I wrote in the docs, simple is the default spiller :-) 
llvm-svn: 12189
 2004-03-06 23:08:44 +00:00
Alkis Evlogimenos 79850121ad Add simple spiller. 
llvm-svn: 12188
 2004-03-06 22:38:29 +00:00
Alkis Evlogimenos 36fd868f08 The default register allocator is local not simple. 
llvm-svn: 12187
 2004-03-06 22:27:41 +00:00
Brian Gaeke 4e0669cef0 Support return values of basic integer types. 
Emit RETL instruction to return instead of funny JMPL.
Fix indentation.

llvm-svn: 12186
 2004-03-06 05:32:28 +00:00
Brian Gaeke c65b97d4f6 Sort stanzas into Sparc V8 book page number order. 
Add RET, RETL.  Rename SAVE, RESTORE & JMPL for consistency.

llvm-svn: 12185
 2004-03-06 05:32:13 +00:00