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Author SHA1 Message Date
Chris Lattner
340f4a5fcb final random and incoherent notes after making it through all the commits. 
Next step: making them more coherent.

llvm-svn: 65511
 2009-02-26 07:29:17 +00:00
Zhou Sheng
670d50e102 Ignore dbg info intrinsics when folding conditional branch to 
conditional branch predecessors.

llvm-svn: 65509
 2009-02-26 06:56:37 +00:00
Nick Lewycky
0132cfe834 Add the function attributes pass during LTO time. 
llvm-svn: 65508
 2009-02-26 06:56:16 +00:00
Chris Lattner
8ef915d2ec more notes. 
llvm-svn: 65507
 2009-02-26 06:47:09 +00:00
Chris Lattner
5e69c7d5b6 add some notes from Nicolas G. 
llvm-svn: 65503
 2009-02-26 05:20:36 +00:00
Owen Anderson
32d31bc5cc Enable stack slot coloring DCE. Evan's spiller fixes were needed before this could happen. 
llvm-svn: 65501
 2009-02-26 04:47:57 +00:00
Evan Cheng
4014a9a5b8 ADDS{D|S}rr_Int and MULS{D|S}rr_Int are not commutable. The users of these intrinsics expect the high bits will not be modified. 
llvm-svn: 65499
 2009-02-26 03:12:02 +00:00
Evan Cheng
86fc9440db The last commit was overly conservative. It's ok to reuse value that's already marked livein. 
llvm-svn: 65498
 2009-02-26 03:02:21 +00:00
Evan Cheng
435dbd4665 If an available register falls through to a succ block, unset the last kill. Sorry, it's impossible to reduce a sensible test case. It basically requires the moon and stars to align in order to cause a failure. 
llvm-svn: 65497
 2009-02-26 02:30:42 +00:00
Bob Wilson
873bfcf34f Fix a duplicated word in a comment. 
llvm-svn: 65496
 2009-02-26 00:58:09 +00:00
Julien Lerouge
980b081d2a Fix a typo that prevents hello.mm from running (and runs hello.m twice). 
llvm-svn: 65493
 2009-02-26 00:16:33 +00:00
Evan Cheng
ec34226c2b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296. 
llvm-svn: 65482
 2009-02-25 22:49:59 +00:00
Dale Johannesen
9a6ca304f1 Fix big-endian codegen bug. We're splitting up 
overly long ints, e.g. i96, into pieces at PHIs
and the nodes that feed into them; however big-endian
reverses the order of the pieces (for some reason), and
wasn't doing it the same way on both sides, so
the pieces didn't match and runtime failures ensued.
Fixes 188.ammp and sqlite3 on ppc32.

llvm-svn: 65481
 2009-02-25 22:39:13 +00:00
Devang Patel
2fd41ecef5 Print variable's display name in dwarf DIE. 
llvm-svn: 65468
 2009-02-25 19:41:35 +00:00
Chris Lattner
1443cb8f77 Fix PR3667 
llvm-svn: 65464
 2009-02-25 18:20:01 +00:00
Duncan Sands
4111c9d34c Check that records with a known constant size are not 
copied field by LLVM field if the record has a variable
sized field in it.  The problem is that the LLVM field
will not completely cover the variable sized gcc field.

llvm-svn: 65463
 2009-02-25 18:10:49 +00:00
Zhou Sheng
241d74737b Don't block basic block with only SwitchInst to fold into predecessors. 
llvm-svn: 65456
 2009-02-25 15:34:27 +00:00
Duncan Sands
3e50fc3451 Flesh out the Ada section a little. 
llvm-svn: 65448
 2009-02-25 11:59:06 +00:00
Duncan Sands
21bdbc2fe1 The C backend does not support arbitrary precision integers. 
llvm-svn: 65447
 2009-02-25 11:51:54 +00:00
Duncan Sands
161bf4fbbb Note on new type legalizer. 
llvm-svn: 65446
 2009-02-25 11:50:08 +00:00
Duncan Sands
a86cde89c6 Add note on support for arbitrary precision integers. 
llvm-svn: 65445
 2009-02-25 11:37:39 +00:00
Chris Lattner
4bda3547ba more notes. 
llvm-svn: 65439
 2009-02-25 07:32:53 +00:00
Evan Cheng
befebff8fc Clean up dwarf writer, part 1. This eliminated the horrible recursive getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior. 
This is a very minor compile time win.

llvm-svn: 65438
 2009-02-25 07:04:34 +00:00
Nick Lewycky
8672fb675c Add a totally synthetic situation I came up with while looking at a bug in 
related code.

llvm-svn: 65437
 2009-02-25 06:52:48 +00:00
Chris Lattner
800261b58f random notes 
llvm-svn: 65436
 2009-02-25 06:34:50 +00:00
Nick Lewycky
97156ee783 Recommend against using Gold to build LLVM. 
llvm-svn: 65435
 2009-02-25 06:29:47 +00:00
Chris Lattner
78e2933103 don't know if there is a vmkit release to match 2.5 
llvm-svn: 65434
 2009-02-25 05:45:05 +00:00
Chris Lattner
50a191ab82 update clang section 
llvm-svn: 65430
 2009-02-25 05:09:54 +00:00
Chris Lattner
934fa00e1d rip out llvm 2.4 details to make room for 2.5 
llvm-svn: 65429
 2009-02-25 04:41:31 +00:00
Scott Michel
3f273a8412 Expand tabs to spaces (overlooked in previous commit) 
llvm-svn: 65427
 2009-02-25 03:57:49 +00:00
Scott Michel
29d7559c09 Remove all "cached" data from BuildVectorSDNode, preferring to retrieve 
results via reference parameters.

This patch also appears to fix Evan's reported problem supplied as a
reduced bugpoint test case.

llvm-svn: 65426
 2009-02-25 03:12:50 +00:00
Mon P Wang
c9b4dab417 Added support to have TableGen provide information if an intrinsic (core 
or target) can be overloaded or not.

llvm-svn: 65404
 2009-02-24 23:17:49 +00:00
Devang Patel
936c18daca If compile unit's language is not set then don't crash while dump'ing compile unit. 
llvm-svn: 65402
 2009-02-24 23:15:09 +00:00
Daniel Dunbar
d5e0934e30 Extension of GEP in constant folder was broken (apparently this code 
has never been run!).
 - Sorry, don't know how to make an LLVM test case for this.

llvm-svn: 65383
 2009-02-24 19:10:46 +00:00
Dan Gohman
dd9c79d45b Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount, 
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.

llvm-svn: 65382
 2009-02-24 18:55:53 +00:00
Bill Wendling
9d4eb136da Overhaul my earlier submission due to feedback. It's a large patch, but most of 
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.

llvm-svn: 65379
 2009-02-24 08:30:20 +00:00
Owen Anderson
ffcb59129f Add a debugging option for SSC DCE. 
llvm-svn: 65375
 2009-02-24 05:44:18 +00:00
Bill Wendling
0d8316c5e0 - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit 
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.

llvm-svn: 65367
 2009-02-24 02:35:30 +00:00
Dan Gohman
486728ef53 Add a testcase for the problem fixed in r65289. 
llvm-svn: 65365
 2009-02-24 02:17:42 +00:00
Dan Gohman
1197d46ccf Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simple 
ashr instcombine to help expose this code. And apply the fix to
SelectionDAG's copy of this code too.

llvm-svn: 65364
 2009-02-24 02:00:40 +00:00
Dan Gohman
f5bb2d8747 Generalize the ChangeCompareStride code, in preparation for 
handling non-constant strides. No functionality change.

llvm-svn: 65363
 2009-02-24 01:58:00 +00:00
Dan Gohman
3a3b51162b Preserve the DominanceFrontier analysis in the LoopDeletion pass. 
llvm-svn: 65359
 2009-02-24 01:21:53 +00:00
Devang Patel
49b26ded5d gdb uses DW_AT_prototyped to identify K&R style in C based languages. 
This fixes objc.dg/dwarf-prototypes.m scan-assembler DW_AT_prototyped from llvmgcc42 test suite.

llvm-svn: 65357
 2009-02-24 00:52:19 +00:00
Bill Wendling
0d306fc85f Un-XFAIL this test. 
llvm-svn: 65355
 2009-02-24 00:37:28 +00:00
Devang Patel
702836b2dd While folding unconditional return move DbgRegionEndInst into the predecessor, instead of removing it. This fixes following tests from llvmgcc42 testsuite. 
gcc.c-torture/execute/20000605-3.c
gcc.c-torture/execute/20020619-1.c
gcc.c-torture/execute/20030920-1.c
gcc.c-torture/execute/loop-ivopts-1.c

llvm-svn: 65353
 2009-02-24 00:05:16 +00:00
Devang Patel
98ea831c24 If there is not any debug info available for any global variables and any subprograms then there is not any debug info to emit. 
llvm-svn: 65352
 2009-02-24 00:02:15 +00:00
Dan Gohman
1d93a1d2cb Back out the change in 64918 that used sign-extensions when promoting 
trip counts that use signed comparisons. It's not obviously the best
approach for preserving trip count information, and at any rate there
isn't anything in the tree right now that makes use of that, so for
now always using zero-extensions is preferable.

llvm-svn: 65347
 2009-02-23 23:20:35 +00:00
Dan Gohman
3766eeea36 Fast-isel can't do TLS yet, so it should fall back to SDISel 
if it sees TLS addresses.

llvm-svn: 65341
 2009-02-23 22:03:08 +00:00
Ted Kremenek
d5ea51e615 Correctly implement ImmutableMap::getMaxElement() by getting the actual <key, value> pair. 
llvm-svn: 65327
 2009-02-23 17:28:16 +00:00
Ted Kremenek
d8c425b68d Add ImmutableMap::getMaxElement(), a method that returns the <key,value> pair in a ImmutableMap that has the highest ranked key. 
llvm-svn: 65326
 2009-02-23 17:27:18 +00:00