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8159 Commits

Author SHA1 Message Date
Gabor Greif
9a8e64c76f Give sentinel traits the right to determine the policy where the sentinel is kept. 
This should result in less indirect memory accesses, less dead writes and tighter code.

llvm-svn: 66061
 2009-03-04 20:36:44 +00:00
Gabor Greif
f8d2f7429d "Ghostify" embedded sentinels. This is a real win in all cases 
because less bytes are allocated and subobject construction is gone.
For reference how it works, see BasicBlock.h.
Btw. it is very assuring to see that somebody has invented
this ilist-embedded sentinel technique before me :-)

llvm-svn: 66026
 2009-03-04 06:57:48 +00:00
Dale Johannesen
b26bc461f0 Temporarily revert 65975, which breaks the llvm-gcc build. 
While the patch is clearly correct in itself, it's become
apparent other places are assuming debug intrinsics are
marked as touching memory...this needs more testing.

llvm-svn: 65992
 2009-03-04 01:14:28 +00:00
Devang Patel
dd0b382f55 Dbg Intrinsics do not access memory. 
llvm-svn: 65975
 2009-03-03 22:33:54 +00:00
Dan Gohman
cf43db79cc Make a comment less terse. 
llvm-svn: 65953
 2009-03-03 17:44:54 +00:00
Dan Gohman
51d4e8db6a Fix a bunch of Doxygen syntax issues. Escape special characters, 
and put @file directives on their own comment line.

llvm-svn: 65920
 2009-03-03 02:55:14 +00:00
Dale Johannesen
33fa9dc8a9 When sinking an insn in InstCombine bring its debug 
info with it.
Don't count debug info insns against the scan maximum
in FindAvailableLoadedValue (lest they affect codegen).

llvm-svn: 65910
 2009-03-03 01:09:07 +00:00
Bob Wilson
5b276b6bc9 Generalize BuildVectorSDNode::isConstantSplat to use APInts and handle 
arbitrary vector sizes.  Add an optional MinSplatBits parameter to specify
a minimum for the splat element size.  Update the PPC target to use the
revised interface.

llvm-svn: 65899
 2009-03-02 23:24:16 +00:00
Gabor Greif
63c1d08d66 drop support for GCC 2.x as it is hopelessly broken anyway 
llvm-svn: 65864
 2009-03-02 19:49:29 +00:00
Gabor Greif
2b1114593e Declare Sentinel fragments as mutable to get rid 
of some pointless casting. This fragment logically
does not belong to ilist anyway, but to "ghostly"
NodeType.

llvm-svn: 65843
 2009-03-02 14:47:45 +00:00
Gabor Greif
267542aaa5 remove a deprecated interface that was pretty useless 
llvm-svn: 65842
 2009-03-02 12:42:07 +00:00
Gabor Greif
f30dc30eea fix typo 
llvm-svn: 65839
 2009-03-02 12:10:56 +00:00
Mikhail Glushenkov
3f2bbd6301 Move code from Main.cpp to the include dir. 
User drivers based on llvmc must all share the initialization code.
Putting main() into libCompilerDriver is not a very good idea IMO (and ld gave
me some strange EH-related error anyway).

llvm-svn: 65825
 2009-03-02 09:03:02 +00:00
Mikhail Glushenkov
6987e30144 Cosmetic fixes: include guards. 
llvm-svn: 65824
 2009-03-02 09:02:28 +00:00
Mikhail Glushenkov
0ce41a4c26 Plugin::Priority() doesn't need to be pure virtual. 
llvm-svn: 65823
 2009-03-02 09:02:01 +00:00
Mikhail Glushenkov
1a0ddf169b Add a comment. 
llvm-svn: 65822
 2009-03-02 09:01:39 +00:00
Mikhail Glushenkov
3cde18e191 Reorganize llvmc code. 
Move the code from 'llvmc/driver' into a new CompilerDriver library, and change
the build system accordingly. Makes it easier for projects using LLVM to build
their own llvmc-based drivers.

Tested with objdir != srcdir.

llvm-svn: 65821
 2009-03-02 09:01:14 +00:00
Gabor Greif
3f56efbf04 Another sentinel optimization. This one should always 
be a win, since almost every interesting function has at least one Argument.

llvm-svn: 65778
 2009-03-01 17:13:15 +00:00
Gabor Greif
dc34b050a2 Reuse a technique (pioneered for BasicBlocks) of superposing ilist with 
its sentinel. This is quite a win when a function really has a basic block.                  
When the function is just a declaration (and stays so) the old way did not
allocate a sentinel. So this change is most beneficial when the ratio of
function definition to declaration is high. I.e. linkers etc. Incidentally  
these are the most resource demanding applications, so I expect that the
reduced malloc traffic, locality and space savings outweigh the cost of
addition of two pointers to Function.

llvm-svn: 65776
 2009-03-01 16:38:10 +00:00
Gabor Greif
9849b23219 fix a comment 
llvm-svn: 65768
 2009-03-01 09:45:52 +00:00
Gabor Greif
9b3fe3d625 Fix a typo. Thanks baldrick! 
llvm-svn: 65767
 2009-03-01 09:43:41 +00:00
Chris Lattner
0cefb564d4 simplify handling "don't print top level name" processing, so that we get 
stuff like %A = type { %A*} instead of an upref.

llvm-svn: 65748
 2009-03-01 01:16:21 +00:00
Bob Wilson
7482f84ae6 Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a new 
method in a BuildVectorSDNode "pseudo-class".

llvm-svn: 65747
 2009-03-01 01:13:55 +00:00
Chris Lattner
1a7eac8434 move type name population out of TypePrinting class into a static 
AsmWriter.cpp method.

llvm-svn: 65736
 2009-02-28 23:20:19 +00:00
Chris Lattner
2396ce476a delete a bunch of duplicated type printing logic, using the type printing 
stuff in AsmWriter.cpp for Type::getDescription().

llvm-svn: 65734
 2009-02-28 23:01:57 +00:00
Gabor Greif
2def3e8ae7 add description how the ilist_traits<Instruction> works 
llvm-svn: 65732
 2009-02-28 22:46:37 +00:00
Chris Lattner
34181d9bcc the module is not required to exist, allow it to default, giving this 
class a nice default ctor.

llvm-svn: 65731
 2009-02-28 22:41:33 +00:00
Chris Lattner
28f2b3c2a4 disable copying and assignment. 
llvm-svn: 65730
 2009-02-28 22:35:24 +00:00
Chris Lattner
03e16b833f expose TypePrinting as a public API. 
llvm-svn: 65729
 2009-02-28 22:34:45 +00:00
Chris Lattner
f47615197e Change WriteTypeSymbolic to not put a space out before types, also, remove 
the old std::ostream version.

llvm-svn: 65720
 2009-02-28 21:05:51 +00:00
Gabor Greif
5d9be2cffd make traits more flexible by splitting out node-related fragment 
llvm-svn: 65690
 2009-02-28 10:17:32 +00:00
Evan Cheng
c26c11bbd0 Avoid unused parameter warning. 
llvm-svn: 65670
 2009-02-28 01:10:24 +00:00
Gabor Greif
078dabaf4a group friendship 
llvm-svn: 65633
 2009-02-27 15:46:23 +00:00
Rafael Espindola
880e63bf01 Refactor TLS code and add some tests. The tests and expected results are: 
pic |  declaration | linkage  | visibility |

!pic |  declaration | external | default    | tls1.ll     tls2.ll     | local exec
 pic |  declaration | external | default    | tls1-pic.ll tls2-pic.ll | general dynamic
!pic | !declaration | external | default    | tls3.ll     tls4.ll     | initial exec
 pic | !declaration | external | default    | tls3-pic.ll tls4-pic.ll | general dynamic

!pic |  declaration | external | hidden     | tls7.ll     tls8.ll     | local exec
 pic |  declaration | external | hidden     | X                       | local dynamic
!pic | !declaration | external | hidden     | tls9.ll     tls10.ll    | local exec
 pic | !declaration | external | hidden     | X                       | local dynamic

!pic |  declaration | internal | default    | tls5.ll     tls6.ll     | local exec
 pic |  declaration | internal | default    | X                       | local dynamic

The ones marked with an X have not been implemented since local dynamic is not implemented.

llvm-svn: 65632
 2009-02-27 13:37:18 +00:00
Gabor Greif
154b0b2765 fix comments 
llvm-svn: 65627
 2009-02-27 09:33:37 +00:00
Gabor Greif
9b51fe4ab1 Introduce a new technique for merging BasicBlock with Instruction sentinel by superposition. 
This looks dangerous, but isn't because the sentinel is accessed in special way only,
namely the Next and Prev fields of it, and these are guaranteed to exist.

llvm-svn: 65626
 2009-02-27 08:41:37 +00:00
Dan Gohman
04e61ee3b5 Make LoopInfo::print() identify header, exit, and latch blocks, 
and print the loop depth.

llvm-svn: 65593
 2009-02-27 00:05:54 +00:00
Gabor Greif
cd59854e1c remove deleteNode definition, it is inherited in an identical fashion 
llvm-svn: 65565
 2009-02-26 19:37:54 +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
Bob Wilson
873bfcf34f Fix a duplicated word in a comment. 
llvm-svn: 65496
 2009-02-26 00:58:09 +00:00
Evan Cheng
ec34226c2b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296. 
llvm-svn: 65482
 2009-02-25 22:49:59 +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
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
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
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
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