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Author SHA1 Message Date
Chris Lattner
d838fcd03d more notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65507 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 06:47:09 +00:00
Chris Lattner
75e26caaca add some notes from Nicolas G. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65503 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 05:20:36 +00:00
Owen Anderson
130abb29cc Enable stack slot coloring DCE. Evan's spiller fixes were needed before this could happen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65501 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 04:47:57 +00:00
Evan Cheng
236aa8a503 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65499 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 03:12:02 +00:00
Evan Cheng
04cf3e39f3 The last commit was overly conservative. It's ok to reuse value that's already marked livein. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65498 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 03:02:21 +00:00
Evan Cheng
f792352c25 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65497 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 02:30:42 +00:00
Bob Wilson
7b048b391f Fix a duplicated word in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65496 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 00:58:09 +00:00
Julien Lerouge
1aa1f74a09 Fix a typo that prevents hello.mm from running (and runs hello.m twice). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65493 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 00:16:33 +00:00
Evan Cheng
a87008d90b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 22:49:59 +00:00
Dale Johannesen
8a36f509cd 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65481 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 22:39:13 +00:00
Devang Patel
053372dc3c Print variable's display name in dwarf DIE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65468 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 19:41:35 +00:00
Chris Lattner
58b1ac76d4 Fix PR3667 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65464 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 18:20:01 +00:00
Duncan Sands
411c285404 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 18:10:49 +00:00
Zhou Sheng
9a7c743fc0 Don't block basic block with only SwitchInst to fold into predecessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65456 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 15:34:27 +00:00
Duncan Sands
326a4988ba Flesh out the Ada section a little. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65448 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 11:59:06 +00:00
Duncan Sands
50723a94f4 The C backend does not support arbitrary precision integers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65447 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 11:51:54 +00:00
Duncan Sands
07636eae92 Note on new type legalizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65446 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 11:50:08 +00:00
Duncan Sands
8524cb9fa5 Add note on support for arbitrary precision integers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65445 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 11:37:39 +00:00
Chris Lattner
99f375b6c8 more notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65439 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 07:32:53 +00:00
Evan Cheng
e3d423244a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65438 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 07:04:34 +00:00
Nick Lewycky
20babb112c Add a totally synthetic situation I came up with while looking at a bug in 
related code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65437 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 06:52:48 +00:00
Chris Lattner
74c80df2b8 random notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65436 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 06:34:50 +00:00
Nick Lewycky
d9f66e6ca3 Recommend against using Gold to build LLVM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65435 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 06:29:47 +00:00
Chris Lattner
1f859860ba don't know if there is a vmkit release to match 2.5 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 05:45:05 +00:00
Chris Lattner
f40c40bf93 update clang section 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65430 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 05:09:54 +00:00
Chris Lattner
38ab04cb44 rip out llvm 2.4 details to make room for 2.5 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65429 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 04:41:31 +00:00
Scott Michel
8f1579aedc Expand tabs to spaces (overlooked in previous commit) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65427 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 03:57:49 +00:00
Scott Michel
df38043a46 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65426 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-25 03:12:50 +00:00
Mon P Wang
0d52ff1f7b Added support to have TableGen provide information if an intrinsic (core 
or target) can be overloaded or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 23:17:49 +00:00
Devang Patel
d8e880c670 If compile unit's language is not set then don't crash while dump'ing compile unit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65402 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 23:15:09 +00:00
Daniel Dunbar
a7b42034fc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65383 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 19:10:46 +00:00
Dan Gohman
46bdfb0e6b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65382 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 18:55:53 +00:00
Bill Wendling
57f0db833d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 08:30:20 +00:00
Owen Anderson
3d8bde8dfb Add a debugging option for SSC DCE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65375 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 05:44:18 +00:00
Bill Wendling
5aa4977fba - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65367 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 02:35:30 +00:00
Dan Gohman
85937de26b Add a testcase for the problem fixed in r65289. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65365 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 02:17:42 +00:00
Dan Gohman
0001e56f15 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 02:00:40 +00:00
Dan Gohman
c34fea3935 Generalize the ChangeCompareStride code, in preparation for 
handling non-constant strides. No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65363 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 01:58:00 +00:00
Dan Gohman
d0a90b9876 Preserve the DominanceFrontier analysis in the LoopDeletion pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65359 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 01:21:53 +00:00
Devang Patel
002ec1482c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65357 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 00:52:19 +00:00
Bill Wendling
d1d1c8b3d5 Un-XFAIL this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 00:37:28 +00:00
Devang Patel
5622f07a21 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65353 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 00:05:16 +00:00
Devang Patel
53cac18cca If there is not any debug info available for any global variables and any subprograms then there is not any debug info to emit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65352 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-24 00:02:15 +00:00
Dan Gohman
15cab2817b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65347 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-23 23:20:35 +00:00
Dan Gohman
e9865945ad Fast-isel can't do TLS yet, so it should fall back to SDISel 
if it sees TLS addresses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65341 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-23 22:03:08 +00:00
Ted Kremenek
638b8b446e Correctly implement ImmutableMap::getMaxElement() by getting the actual <key, value> pair. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65327 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-23 17:28:16 +00:00
Ted Kremenek
1c7a666fce Add ImmutableMap::getMaxElement(), a method that returns the <key,value> pair in a ImmutableMap that has the highest ranked key. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65326 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-23 17:27:18 +00:00
Dan Gohman
e2abdd3ff0 LoopDeletion needs to inform ScalarEvolution when a loop is deleted, 
so that ScalarEvolution doesn't hang onto a dangling Loop*, which
could be a problem if another Loop happens to get allocated at the
same address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65323 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-23 17:10:29 +00:00
Dan Gohman
834db732ba Use the -stack-alignment option instead of using a target triple 
for avoiding dynamic stack realignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65319 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-23 16:34:46 +00:00
Dan Gohman
474cecf0e9 IndVarSimplify preserves ScalarEvolution. In the 
-std-compile-opts sequence, this avoids the need for ScalarEvolution to
be rerun before LoopDeletion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-23 16:29:41 +00:00