Commit Graph

3172 Commits

Author SHA1 Message Date
Dan Gohman 89dd42af31 Eliminate a redundant FoldingSet lookup.
llvm-svn: 106872
2010-06-25 18:47:08 +00:00
Dan Gohman 5235cc2c25 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 3ace9f4e3d 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 1abbde3103 use ArgOperand accessors
llvm-svn: 106697
2010-06-23 23:38:07 +00:00
Gabor Greif 253c6bf366 use the new isFreeCall API and ArgOperand accessors
llvm-svn: 106692
2010-06-23 22:48:06 +00:00
Gabor Greif 5f5a864539 minor enhancement to llvm::isFreeCall API: return CallInst; no functional change
llvm-svn: 106686
2010-06-23 21:51:12 +00:00
Gabor Greif ad7884ad98 use ArgOperand getters
llvm-svn: 106685
2010-06-23 21:41:47 +00:00
Dan Gohman 75c6b0bb1f 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 d2d1ae105d 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 f820bd327d 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 b6e058da18 Use single interface, using twine, to get named metadata.
getNamedMetadata().

llvm-svn: 106518
2010-06-22 01:19:38 +00:00
Devang Patel ad51735794 Do not rely on Twine temporaries to survive.
llvm-svn: 106515
2010-06-22 01:01:58 +00:00
Dan Gohman dd41bba517 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 e80de80270 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 c515ab1eb2 Restore a call to rememberInstruction which was accidentally dropped
in refactoring.

llvm-svn: 106398
2010-06-19 22:50:35 +00:00
Dan Gohman 866971ed3d 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 d277246137 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 24ceda8eb0 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 4c807fca97 Reapply 105540, 105542, and 105548, and revert r105732.
llvm-svn: 106304
2010-06-18 19:26:04 +00:00
Dan Gohman 45073042eb Reapply 105546.
llvm-svn: 106302
2010-06-18 19:12:32 +00:00
Dan Gohman 9136d9fbf8 Reapply 105544.
llvm-svn: 106301
2010-06-18 19:09:27 +00:00
Dan Gohman 3d8a9d7490 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 f1d8304fe3 Eliminate unnecessary uses of getZExtValue().
llvm-svn: 106279
2010-06-18 14:22:04 +00:00
Dan Gohman 8ba26b48bb Fix a typo in a comment.
llvm-svn: 106260
2010-06-18 00:53:08 +00:00
Dan Gohman 8f5954f42c Simplify this code.
llvm-svn: 106254
2010-06-17 23:34:09 +00:00
Jim Grosbach fd3b4e7390 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 d119da54de Check function pointer first, before comparing function names.
llvm-svn: 106088
2010-06-16 06:42:02 +00:00
Devang Patel a6d20f446f 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 afe54f1625 Support for nested functions/classes in debug output. (Again.) Radar 7424645.
llvm-svn: 105828
2010-06-11 20:08:44 +00:00
Stuart Hastings 6111abf8ad Delete duplicate function.
llvm-svn: 105827
2010-06-11 20:05:01 +00:00
Evan Cheng ae83e1f5cb Revert 105540, 105542, 105544, 105546, and 105548 to unbreak bootstrapping.
llvm-svn: 105740
2010-06-09 18:59:43 +00:00
Kenneth Uildriks 9b21208bfb 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 ebf2e977cf 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 3553feed79 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 a2effb6452 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 18a4b46404 Micro-optimize this.
llvm-svn: 105542
2010-06-07 19:12:54 +00:00
Dan Gohman 70910a6ab6 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 a3bba3371a 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 3ca391027f Revert 105492 & 105493 due to a testcase regression. Radar 7424645.
llvm-svn: 105511
2010-06-05 00:39:29 +00:00
Dan Gohman bbfb6aca92 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 7c015988fe Support for nested functions/classes in debug output. Radar 7424645.
llvm-svn: 105492
2010-06-04 22:36:03 +00:00
Dan Gohman 538b413ccb Fix normalization and de-normalization of non-affine SCEVs.
llvm-svn: 105480
2010-06-04 19:16:34 +00:00
Dan Gohman 49a372cebc 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 34709d06c0 Fix AliasDebugger to be aware of operand values too.
llvm-svn: 105012
2010-05-28 22:31:51 +00:00
Dan Gohman 0fa67e479a Add lint checks for function attributes.
llvm-svn: 105009
2010-05-28 21:43:57 +00:00
Dan Gohman c575ec61ea 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 862f034188 Detect self-referential values.
llvm-svn: 104957
2010-05-28 16:45:33 +00:00
Stuart Hastings c1e216583f Revert 104841, 104842, 104876 due to buildbot failures. Radar 7424645.
llvm-svn: 104953
2010-05-28 16:41:07 +00:00
Dan Gohman cef9fc37f4 Eli pointed out that va_arg instruction result values don't
reference the stack.

llvm-svn: 104951
2010-05-28 16:34:49 +00:00
Dan Gohman 54d7aaa819 Teach lint how to look through simple store+load pairs and other
effective no-op constructs, to make it more effective on
unoptimized IR.

llvm-svn: 104950
2010-05-28 16:21:24 +00:00