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3175 Commits

Author SHA1 Message Date
Dan Gohman
d454f5c234 Generalize AAEval so that it can be used both per-function and 
interprocedurally. Note that as of this writing, existing alias
analysis passes are not prepared to be used interprocedurally.

llvm-svn: 107013
 2010-06-28 16:01:37 +00:00
Devang Patel
fdca552823 Use named MDNode, llvm.dbg.sp, to collect subprogram info. This will be used to emit local variable's debug info of deleted functions. 
llvm-svn: 106989
 2010-06-28 05:53:08 +00:00
Devang Patel
858a0f3664 Do not forget last element, function, while creating Subprogram definition MDNode from subprogram declare MDNode. 
llvm-svn: 106985
 2010-06-27 21:04:31 +00:00
Dan Gohman
01de3704f9 Eliminate a redundant FoldingSet lookup. 
llvm-svn: 106872
 2010-06-25 18:47:08 +00:00
Dan Gohman
bfbfa95b51 Don't try to preserve pointer types in SCEVConstants; the old code 
was over-complicated.

llvm-svn: 106760
 2010-06-24 16:47:03 +00:00
Dan Gohman
35a5a7285a Make the trunc code consistent with the zext and sext code in its 
handling of pointer types.

llvm-svn: 106757
 2010-06-24 16:33:38 +00:00
Gabor Greif
b86c04f740 use ArgOperand accessors 
llvm-svn: 106697
 2010-06-23 23:38:07 +00:00
Gabor Greif
bfb7386690 use the new isFreeCall API and ArgOperand accessors 
llvm-svn: 106692
 2010-06-23 22:48:06 +00:00
Gabor Greif
4615fc1c93 minor enhancement to llvm::isFreeCall API: return CallInst; no functional change 
llvm-svn: 106686
 2010-06-23 21:51:12 +00:00
Gabor Greif
0b348ae475 use ArgOperand getters 
llvm-svn: 106685
 2010-06-23 21:41:47 +00:00
Dan Gohman
f44783ab4e Replace ScalarEvolution's private copy of getLoopPredecessor 
with LoopInfo's public copy.

llvm-svn: 106603
 2010-06-22 23:43:28 +00:00
Dan Gohman
74d5144414 Use pre-increment instead of post-increment when the result is not used. 
llvm-svn: 106542
 2010-06-22 15:08:57 +00:00
Dan Gohman
a3bc6b13f7 Allow "exhaustive" trip count evaluation on phi nodes with all 
constant operands.

llvm-svn: 106537
 2010-06-22 13:15:46 +00:00
Devang Patel
f50b6147ad Use single interface, using twine, to get named metadata. 
getNamedMetadata().

llvm-svn: 106518
 2010-06-22 01:19:38 +00:00
Devang Patel
dee41b010a Do not rely on Twine temporaries to survive. 
llvm-svn: 106515
 2010-06-22 01:01:58 +00:00
Dan Gohman
6a3c46ad49 Use A.append(...) instead of A.insert(A.end(), ...) when A is a 
SmallVector, and other SmallVector simplifications.

llvm-svn: 106452
 2010-06-21 19:47:52 +00:00
Devang Patel
3dbb143c29 Do not directly use function names to construct new name for named metadata. 
"llvm.dbg.lv.~A" is not a valid name.

llvm-svn: 106438
 2010-06-21 18:36:58 +00:00
Dan Gohman
90c5f8753d Restore a call to rememberInstruction which was accidentally dropped 
in refactoring.

llvm-svn: 106398
 2010-06-19 22:50:35 +00:00
Dan Gohman
cec5b682b6 Fix ScalarEvolution's "exhaustive" trip count evaluation code to avoid 
assuming that loops are in canonical form, as ScalarEvolution doesn't
depend on LoopSimplify itself. Also, with indirectbr not all loops can
be simplified. This fixes PR7416.

llvm-svn: 106389
 2010-06-19 14:17:24 +00:00
Dan Gohman
fb091c213b Factor out duplicated code for reusing and inserting casts into 
a helper function.

llvm-svn: 106388
 2010-06-19 13:25:23 +00:00
Dan Gohman
b5ec637e57 Revert r106304 (105548 and friends), which are the SCEVComplexityCompare 
optimizations. There is still some nondeterminism remaining.

llvm-svn: 106306
 2010-06-18 19:54:20 +00:00
Dan Gohman
527b570925 Reapply 105540, 105542, and 105548, and revert r105732. 
llvm-svn: 106304
 2010-06-18 19:26:04 +00:00
Dan Gohman
75f6f94c48 Reapply 105546. 
llvm-svn: 106302
 2010-06-18 19:12:32 +00:00
Dan Gohman
ab895769a7 Reapply 105544. 
llvm-svn: 106301
 2010-06-18 19:09:27 +00:00
Dan Gohman
e20e668c7e Remove getIntegerSCEV; it's redundant with getConstant, and getConstant 
is more consistent with the ConstantInt API.

llvm-svn: 106281
 2010-06-18 14:33:50 +00:00
Dan Gohman
0b5b93b20d Eliminate unnecessary uses of getZExtValue(). 
llvm-svn: 106279
 2010-06-18 14:22:04 +00:00
Dan Gohman
eab6b51039 Fix a typo in a comment. 
llvm-svn: 106260
 2010-06-18 00:53:08 +00:00
Dan Gohman
1d9d93381a Simplify this code. 
llvm-svn: 106254
 2010-06-17 23:34:09 +00:00
Jim Grosbach
67b46d6303 A few more places where SCEVExpander bits need to skip over debug intrinsics 
when iterating through instructions. Yet more work for rdar://7797940

llvm-svn: 106149
 2010-06-16 21:13:38 +00:00
Devang Patel
108d77796f Check function pointer first, before comparing function names. 
llvm-svn: 106088
 2010-06-16 06:42:02 +00:00
Devang Patel
3282324020 Use separate named MDNode to hold each function's local variable info. 
This speeds up local variable handling in DwarfDebug.

llvm-svn: 106075
 2010-06-16 00:53:55 +00:00
Stuart Hastings
f9ef9ff3d6 Support for nested functions/classes in debug output. (Again.) Radar 7424645. 
llvm-svn: 105828
 2010-06-11 20:08:44 +00:00
Stuart Hastings
7b15c202c7 Delete duplicate function. 
llvm-svn: 105827
 2010-06-11 20:05:01 +00:00
Evan Cheng
28c151ae52 Revert 105540, 105542, 105544, 105546, and 105548 to unbreak bootstrapping. 
llvm-svn: 105740
 2010-06-09 18:59:43 +00:00
Kenneth Uildriks
2c6b68924d Pulled CodeMetrics out of InlineCost.h and made it a bit more general, so it can be reused from PartialSpecializationCost 
llvm-svn: 105725
 2010-06-09 15:11:37 +00:00
Dan Gohman
490f4d7020 The FoldingSet hash data includes pointer values, so it isn't 
determinstic. Instead, give SCEV objects an arbitrary sequence
number.

llvm-svn: 105548
 2010-06-07 19:36:14 +00:00
Dan Gohman
ee75f6f4dd Optimize this code somewhat by taking advantage of the fact 
that the operands are sorted.

llvm-svn: 105546
 2010-06-07 19:20:57 +00:00
Dan Gohman
e4676a62de Micro-optimize this, to speed up this hotspot in debug builds a little. 
llvm-svn: 105544
 2010-06-07 19:16:37 +00:00
Dan Gohman
044a968609 Micro-optimize this. 
llvm-svn: 105542
 2010-06-07 19:12:54 +00:00
Dan Gohman
65954b2eb4 Optimize ScalarEvolution's SCEVComplexityCompare predicate: don't go 
scrounging through SCEVUnknown contents and SCEVNAryExpr operands;
instead just do a simple deterministic comparison of the precomputed
hash data.

Also, since this is more precise, it eliminates the need for the slow
N^2 duplicate detection code.

llvm-svn: 105540
 2010-06-07 19:06:13 +00:00
Bill Wendling
a96eaed21d Create new accessors to get arguments for call/invoke instructions. It breaks 
encapsulation to force the users of these classes to know about the internal
data structure of the Operands structure. It also can lead to errors, like in
the MSIL writer.

llvm-svn: 105539
 2010-06-07 19:05:06 +00:00
Stuart Hastings
37ed2a9663 Revert 105492 & 105493 due to a testcase regression. Radar 7424645. 
llvm-svn: 105511
 2010-06-05 00:39:29 +00:00
Dan Gohman
1865db1b89 LSR needs to remember inserted instructions even in postinc mode, because 
there could be multiple subexpressions within a single expansion which
require insert point adjustment. This fixes PR7306.

llvm-svn: 105510
 2010-06-05 00:33:07 +00:00
Stuart Hastings
eb78f8db98 Support for nested functions/classes in debug output. Radar 7424645. 
llvm-svn: 105492
 2010-06-04 22:36:03 +00:00
Dan Gohman
332b06bd4f Fix normalization and de-normalization of non-affine SCEVs. 
llvm-svn: 105480
 2010-06-04 19:16:34 +00:00
Dan Gohman
56a2a0fb80 Fix the noalias checking so that it doesn't worry about 
an argument aliasing itself. Thanks Duncan!

llvm-svn: 105288
 2010-06-01 20:51:40 +00:00
Dan Gohman
13a88a7def Fix AliasDebugger to be aware of operand values too. 
llvm-svn: 105012
 2010-05-28 22:31:51 +00:00
Dan Gohman
fe69bf7b4c Add lint checks for function attributes. 
llvm-svn: 105009
 2010-05-28 21:43:57 +00:00
Dan Gohman
a20b0d02e6 Fix lint's memcpy and memmove checks, and its basic block traversal. 
llvm-svn: 104970
 2010-05-28 17:44:00 +00:00
Dan Gohman
9a50a9215c Detect self-referential values. 
llvm-svn: 104957
 2010-05-28 16:45:33 +00:00