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Author SHA1 Message Date
Gabor Greif
5e7d4d643d Another sentinel optimization. This one should always 
be a win, since almost every interesting function has at least one Argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65778 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 17:13:15 +00:00
Gabor Greif
abd6f28a74 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65776 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 16:38:10 +00:00
Gabor Greif
1f3bd7a2ee fix a comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65768 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 09:45:52 +00:00
Gabor Greif
1a31d09a16 Fix a typo. Thanks baldrick! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65767 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 09:43:41 +00:00
Chris Lattner
d2b6cb0a2b simplify handling "don't print top level name" processing, so that we get 
stuff like %A = type { %A*} instead of an upref.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65748 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 01:16:21 +00:00
Bob Wilson
a27ea9e89f Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a new 
method in a BuildVectorSDNode "pseudo-class".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65747 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-01 01:13:55 +00:00
Chris Lattner
e9fa33eb66 move type name population out of TypePrinting class into a static 
AsmWriter.cpp method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65736 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 23:20:19 +00:00
Chris Lattner
ae3042316f delete a bunch of duplicated type printing logic, using the type printing 
stuff in AsmWriter.cpp for Type::getDescription().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65734 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 23:01:57 +00:00
Gabor Greif
7eef1800ea add description how the ilist_traits<Instruction> works 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65732 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 22:46:37 +00:00
Chris Lattner
6fa088393e the module is not required to exist, allow it to default, giving this 
class a nice default ctor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65731 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 22:41:33 +00:00
Chris Lattner
a725c45e9e disable copying and assignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65730 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 22:35:24 +00:00
Chris Lattner
d8030a7179 expose TypePrinting as a public API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65729 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 22:34:45 +00:00
Chris Lattner
c287137ce7 Change WriteTypeSymbolic to not put a space out before types, also, remove 
the old std::ostream version.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65720 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 21:05:51 +00:00
Gabor Greif
b141e397d5 make traits more flexible by splitting out node-related fragment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65690 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 10:17:32 +00:00
Evan Cheng
9a5c4e09f5 Avoid unused parameter warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65670 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-28 01:10:24 +00:00
Gabor Greif
a05764c4fb group friendship 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65633 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 15:46:23 +00:00
Rafael Espindola
9a58023c6c 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.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65632 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 13:37:18 +00:00
Gabor Greif
1c17ca10b5 fix comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65627 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 09:33:37 +00:00
Gabor Greif
0a0e68a7ea 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65626 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 08:41:37 +00:00
Dan Gohman
927793b6a1 Make LoopInfo::print() identify header, exit, and latch blocks, 
and print the loop depth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65593 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-27 00:05:54 +00:00
Gabor Greif
9de4221e6e remove deleteNode definition, it is inherited in an identical fashion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65565 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-26 19:37:54 +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
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
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
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
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
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
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
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
Scott Michel
4214a5531c Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTOR 
instruction. The class also consolidates the code for detecting constant
splats that's shared across PowerPC and the CellSPU backends (and might be
useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for
generating new BUILD_VECTOR nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65296 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-22 23:36:09 +00:00
Nick Lewycky
bdf0d7cfc1 Regenerate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65250 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-21 22:38:49 +00:00
Ted Kremenek
07bf7efa0a Add version of StringsEqualNoCase that takes two null-terminated C-strings and compares up to 'len' characters. I tend to screw up string comparison functions, so anyone who is interested please review this\! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65236 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-21 18:25:30 +00:00
Gabor Greif
67a2743b6b fix and clean up a comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65212 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-21 01:09:07 +00:00
Misha Brukman
d3ff4a188e Removed trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65199 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 23:04:06 +00:00
Misha Brukman
085a9ebbc7 Removed trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65197 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 22:54:36 +00:00
Misha Brukman
fe2cce63aa Removed trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65196 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 22:51:36 +00:00
Misha Brukman
a2769a33c9 Fixed lint errors: 
* Alphabetized #includes
* Removed trailing whitespace
* Wrapped or shortened lines over 80 chars


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 22:20:18 +00:00
Evan Cheng
a1fd5b386d Factor address mode matcher out of codegen prepare to make it available to other passes, e.g. loop strength reduction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65134 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 18:24:38 +00:00
Bill Wendling
4ed0c5fb07 Add an accessor method to DwarfWriter to tell of debugging info should be emitted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65092 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 00:44:43 +00:00
Bill Wendling
5d0f68134e Add a default debug location object to the Machine Function. It's used to emit a default debugging label at the beginning of a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65091 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-20 00:42:52 +00:00
Dale Johannesen
c1c9d7e6a9 Describe tail merging's use of InsertBranch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65062 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-19 19:40:21 +00:00
Bill Wendling
4dd82f6aaa Print out a new label only if the debug location *tuple* is different. The debug 
locations may change, but the tuples may be the same.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65039 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-19 09:16:38 +00:00
Bill Wendling
cb819f13d7 Put code that generates debug labels into TableGen so that it can be used by 
everyone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64978 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-18 23:12:06 +00:00
Dan Gohman
f5a309e989 Use a sign-extend instead of a zero-extend when promoting a 
trip count value when the original loop iteration condition is
signed and the canonical induction variable won't undergo signed
overflow. This isn't required for correctness; it just preserves
more information about original loop iteration values.

Add a getTruncateOrSignExtend method to ScalarEvolution,
following getTruncateOrZeroExtend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64918 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-18 17:22:41 +00:00
Dan Gohman
b317143ba8 Clarify the definition of "latch block" in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64916 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-18 16:43:19 +00:00
Dan Gohman
38deef9ce5 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64915 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-02-18 16:37:45 +00:00