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Author SHA1 Message Date
Chris Lattner
d26c9e183e enhance CanEvaluateZExtd to handle shift left and sext, allowing 
more expressions to be promoted and casts eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93096 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 02:22:12 +00:00
Chris Lattner
3f7dc880c4 remove an xform subsumed by EvaluateInDifferentType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 01:35:55 +00:00
Julien Lerouge
5c1735a4df Fix nondeterministic behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93093 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 01:07:22 +00:00
Chris Lattner
4f37978b90 clean up this xform by using m_Trunc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 01:04:31 +00:00
Chris Lattner
d84dfa43f2 inline and remove the rest of commonIntCastTransforms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 01:00:46 +00:00
Chris Lattner
75215c9e39 Inline the expression type promotion/demotion stuff out of 
commonIntCastTransforms into the callers, eliminating a switch,
and allowing the static predicate  methods to be moved down to
live next to the corresponding function.  No functionality 
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93089 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 00:58:42 +00:00
Chris Lattner
10bc755d9f hopefully unbreak the ocaml bindings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 23:25:21 +00:00
Chris Lattner
76ef298310 add 3 passes which have been added but aren't used afaik. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93080 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 22:30:40 +00:00
Chris Lattner
d686c8e73f "In order to ease automatic bindings generation, it would be helpful if boolean values were distinguishable from integers. The attached patch introduces "typedef int LLVMBool;", and uses LLVMBool instead of int throughout the C API, wherever a boolean value is called for." 
Patch by James Y Knight!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93079 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 22:27:07 +00:00
Jeffrey Yasskin
95fa80af6f Clarify the requirements for a "tail call" to actually be optimized into a 
jump.  People clearly weren't finding the extra requirements in
CodeGenerator.html.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93070 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 19:44:16 +00:00
Chris Lattner
aa38865b6b fix bogus test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93069 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 19:24:49 +00:00
Chris Lattner
afab1df368 fix bogus test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93068 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 19:24:18 +00:00
Chris Lattner
2fdf8dbed5 fix PR5983, reject function bodies with no blocks per the grammar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 19:20:07 +00:00
Chris Lattner
873187c042 improve documentation for linkonce to be less confusing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93066 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 19:15:14 +00:00
Jeffrey Yasskin
a77169dbeb Fix http://llvm.org/PR5729: x86-64 tail calls were putting their targets into 
R11, and then asserting that the target was in R9.  Since R9 isn't reserved for
the target anymore, and is used as an argument, this patch changes the
assertion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93065 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 18:56:43 +00:00
Chris Lattner
6d7d735fea 2010 is upon us. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93062 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 18:40:31 +00:00
Dan Gohman
3073329c53 Use WriteAsOperand instead of getName() to print loop header names, 
so that unnamed blocks are handled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93059 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 18:17:45 +00:00
Dan Gohman
7a523dde57 Tighten up the vim LLVM IR syntax highlighting regex for labels, and add a 
highlighting rule for identifiers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93056 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 17:22:48 +00:00
Dan Gohman
acb75a9d70 Set the vim auto-indent setting for open braces after case statements to 
follow LLVM source convention.

Before:
  case X: {
            stuff;
          }

After:
  case X: {
    stuff;
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93055 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 17:15:21 +00:00
David Chisnall
3472246ede Fixed linking of modules containing aliases to constant bitcasts. Existing behaviour first tried to replace the aliases with the global that they aliased (rather than the bitcast), causing a crash on an assert because the types didn't match. When this was fixed, it then did the same thing creating the new alias (creating an alias with a different type to its aliasee). 
Linking modules containing aliases to GEPs is still not quite right.  GEPs that are equivalent to bitcasts will be replaced by bitcasts, GEPs that are not will just break.  Aliases to GEPs that are not equivalent to bitcasts are horribly broken anyway (it might be worth adding an assert when creating the alias to prevent these being created; they just cause problems later).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93052 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 16:27:31 +00:00
Duncan Sands
1fa8b00b30 Suppress use of uninitialized variable warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93046 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 08:30:33 +00:00
Chris Lattner
c2d1b6949c only factor from expressions whose uses are empty and whose 
base is the right expression type.  This fixes PR5981.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93045 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 06:01:36 +00:00
Dan Gohman
d199636039 Revert an earlier change to SIGN_EXTEND_INREG for vectors. The VTSDNode 
really does need to be a vector type, because
TargetLowering::getOperationAction for SIGN_EXTEND_INREG uses that type,
and it needs to be able to distinguish between vectors and scalars.

Also, fix some more issues with legalization of vector casts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 02:13:55 +00:00
Chris Lattner
70644e92d8 clean up this code, add a fixme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93042 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 02:02:37 +00:00
Devang Patel
87df867fd7 Delete NamedMDSymTable while destrucing Module. 
Disable  copy ctor and operator= for NamedMDSymTable. Hide typedef that should be public.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93041 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 01:44:59 +00:00
Dale Johannesen
d2035203a0 Add DEBUG_DECLARE. Not used yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93040 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 01:24:25 +00:00
Devang Patel
380e80fb53 NamedMDNode is never used so there is no need to enumerate it here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93039 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 01:24:03 +00:00
Julien Lerouge
c5dd34209b Fix nondeterministic behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 01:06:49 +00:00
Devang Patel
7f9664699e NamedMDNode element is either null or MDNode. Otherwise this is a malformed NamedMDNode record. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 01:02:22 +00:00
Devang Patel
8fba578be7 Derive NamedMDNode from Value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 00:30:14 +00:00
Evan Cheng
54e146b935 Dan pointed out checking whether a node is dead by comparing its opcode to ISD::DELETED_NODE is not safe. Use a DAGUpdateListener to remove dead nodes from work list instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 00:21:08 +00:00
Dale Johannesen
87563b3937 Add DEBUG_VALUE. Not used yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93030 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 23:51:25 +00:00
Evan Cheng
306b4cafc1 Fix a critical bug in 64-bit atomic operation lowering for 32-bit. The results of the cmpxchg8b instructions are being thrown away when it branches back to the top of the checking loop. This means the loop always compares against the old value and this can result in a dead lock. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 23:41:50 +00:00
Eric Christopher
d003c5b3d7 Grammar thinko. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93027 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 21:42:39 +00:00
Eric Christopher
4d1f58861d Remove unnecessary dyn_cast and add a comment. Part of a WIP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93026 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 21:37:11 +00:00
Chris Lattner
c8b3fce5c5 mplement a theoretical fixme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 19:28:47 +00:00
Chris Lattner
14bf8f0285 rename CanEvaluateInDifferentType -> CanEvaluateTruncated and 
simplify it now that it is only used for truncates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 19:19:23 +00:00
Evan Cheng
ad5b52fd5e Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93020 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 19:14:57 +00:00
Chris Lattner
a85732fa3b teach instcombine to delete sign extending shift pairs (sra(shl X, C), C) when 
the input is already sign extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93019 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 19:04:21 +00:00
Chris Lattner
b31189f262 fix PR5978 by peeling the loop so that we avoid shifting the 
result int by 8 for the first byte.  While normally harmless,
if the result is smaller than a byte, this shift is invalid.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93018 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 19:02:23 +00:00
Duncan Sands
54a57045eb Suppress an unused variable warning when assertions are off; 
remove some trailing whitespace while there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 17:51:48 +00:00
Chris Lattner
9aa1e246dd tidy up some stuff duncan pointed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93007 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 17:48:19 +00:00
Johnny Chen
d248ffb7d5 Minor change, change the order of two "let Inst{...}" stmts within multiclass 
T2I_bin_ii12rs definition.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 17:41:33 +00:00
Eric Christopher
968b35ff47 After further thought revert the patch to make fast-isel avoid 
putting relocations into the constant pool - this isn't needed
for correctness and in the rare occasion it happens would pull
us out of fast isel for the block.

If fast-isel application startup time ever becomes an issue we
can add better support for these addresses instead of bailing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 08:24:49 +00:00
Evan Cheng
6f279e0bda ReplaceAllUsesOfValueWith may delete other nodes that the one being replaced. Do not delete dead nodes again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 02:36:12 +00:00
Evan Cheng
b093bd0565 Fix what looks to me obvious instruction definition bugs. 
1. CMPXCHG8B and CMPXCHG16B did not specify implicit physical register defs and uses.
2. LCMPXCHG8B is loading 64 bit memory, not 32 bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92985 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 01:29:19 +00:00
Eric Christopher
d74a7d4e2c Remove extraneous include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 00:05:33 +00:00
Tobias Grosser
fde781b8d6 Add assert to check dominance dfs numbers. 
Compare the dominance information calculated using a dominance tree walk to the
information calculated based on DFS numbers, if XDEBUG is enabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 23:50:41 +00:00
Tobias Grosser
365ccd3a91 Remove workaround in PostDominators 
Remove a FIXME and unify code that was necessary to work around broken
updateDFSNumbers().  Before updateDFSNumbers() did not work correctly for post
dominators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92968 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 23:50:25 +00:00
Tobias Grosser
ecd4694458 Fix DFS number calculation for postdominators 
The DFS number calculation for postdominators was broken. In the case of
multiple exits that form the post dominator root nodes, do not iterate over
all exits, but start from the virtual root node. Otherwise bbs, that are not
post dominated by any exit but by the virtual root node, will never be assigned
a DFS number.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92967 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 23:50:06 +00:00