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2293 Commits

Author SHA1 Message Date
Devang Patel
dfc8536d7b Fix typo. 
Thanks Duncan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74706 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-02 17:17:03 +00:00
Chris Lattner
0dabb0b177 do not try to analyze bitcasts from i64 to <2 x i32> in ComputedMaskedBits. While 
we could do this, doing so requires adjusting the demanded mask and the code isn't 
doing that yet.  This fixes PR4495


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74699 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-02 16:04:08 +00:00
Devang Patel
9e529c3f78 Add debug info utility routines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74680 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-02 01:15:24 +00:00
Devang Patel
7136a6540c Keep DIDescriptor methods together. 
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74652 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-01 22:10:23 +00:00
Andreas Bolka
fecbc59be6 Use AA to check objects before LDA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74647 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-01 21:45:23 +00:00
Chris Lattner
0fd38069cb improve the APIs for creating struct and function types with no arguments/elements 
to not have to create a temporary vector (in the API at least).  Patch by Jay Foad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74584 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-01 04:13:31 +00:00
Dan Gohman
c39f44b521 Minor code cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74551 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-30 20:13:32 +00:00
Owen Anderson
5ec56cc438 Fix the build on Cygwin. Patch by Aaron Gray. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74510 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-30 05:33:46 +00:00
Andreas Bolka
e9722fc850 Array accesses are independent if the underlying arrays differ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74499 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-30 02:12:10 +00:00
Dan Gohman
5001c21712 Minor formatting, whitespace, and 80-column fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74492 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-30 01:25:30 +00:00
Dan Gohman
099879687f Use getSCEV instead of getUnknown to create a SCEV for a 
Constant. This lets ConstantInts be handled as SCEVConstant instead
of SCEVUnknown, as getUnknown no longer has special-case code for
ConstantInt and friends. This usually doesn't affect the final
output, since the constants end up getting folded later, but it
does make intermediate expressions more obvious in many cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74459 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-29 21:31:18 +00:00
Dan Gohman
cffddcd726 Don't cache PHI exit values from exhaustive evaluations, because 
an individual exhaustive evaluation reflects only the exit value
implied by an individual exit, which may differ from the actual
exit value of the loop if there are other exits. This fixes PR4477.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74447 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-29 20:34:13 +00:00
Andreas Bolka
2fbb770d40 Relax LDA memory instruction checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74439 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-29 18:51:11 +00:00
Torok Edwin
1970a89a49 Call doInitialization(), releaseMemory(), and doFinalization() for on-the-fly passes as well. 
Also don't call finalizers for LoopPass if initialization was not called.
Add a unittest that tests that these methods are called, in the proper
order, and the correct number of times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74438 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-29 18:49:09 +00:00
Dan Gohman
23737e0423 Simplify this code, and avoid using APInt(). This fixes 
(otherwise harmless) uninitialized value warnings that
Duncan found with gcc-4.4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74437 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-29 18:25:52 +00:00
Andreas Bolka
868a302738 Missed one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74416 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-29 00:53:49 +00:00
Andreas Bolka
acd6f8d5d1 Fix case in LDA util function names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74415 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-29 00:50:26 +00:00
Andreas Bolka
c6a303052b Print pairwise dependence results, add testcases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74402 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-28 00:35:22 +00:00
Andreas Bolka
f35626d3cd Minimal LDA interface, maximally conservative tester. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74401 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-28 00:21:21 +00:00
Andreas Bolka
707207adae LDA analysis output scaffolding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74400 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-28 00:16:08 +00:00
Dan Gohman
9d59d9f849 Eliminate a layer of indirection in LoopInfo and MachineLoopInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74394 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-27 21:22:48 +00:00
Dan Gohman
1c34375f79 Convert ScalarEvolution to use BumpPtrAllocator and FoldingSet, instead 
of a team of individual allocations and a team of std::maps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74393 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-27 21:21:31 +00:00
Dan Gohman
267a385342 Change SCEVExpander to use an IRBuilder to emit instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74391 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-27 21:18:18 +00:00
Dan Gohman
667d787c0a Incorporate the insertion point into the key of SCEVExpander's CSE map. 
This helps it avoid reusing an instruction that doesn't dominate all
of the users, in cases where the original instruction was inserted
before all of the users were known.  This may result in redundant
expansions of sub-expressions that depend on loop-unpredictable values
in some cases, however this isn't very common, and it primarily impacts
IndVarSimplify, so GVN can be expected to clean these up.

This eliminates the need for IndVarSimplify's FixUsesBeforeDefs,
which fixes several bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74352 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-26 22:53:46 +00:00
Dan Gohman
9a80b459ed Fix ScalarEvolution::getAddRecExpr's code which canonicalized the 
nesting order of nested AddRec expressions to skip the transformation
if it would introduce an AddRec with operands not loop-invariant
with respect to its loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74343 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-26 22:36:20 +00:00
Dan Gohman
e890eead22 Fix SCEVAddRecExpr::isLoopInvariant to test if all of its operands 
are loop invariant, not just the start operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74338 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-26 22:17:21 +00:00
Douglas Gregor
8947881444 Fix linking of llvm-ld and lli with CMake, from Xerxes Rånby 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74285 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-26 15:37:00 +00:00
Devang Patel
13e16b65dd Remove debug info anchors - llvm.dbg.compile_units, llvm.dbg.subprograms 
and llvm.dbg.global_variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74251 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-26 01:49:18 +00:00
Owen Anderson
2d7f78eb09 Use a more correct atomic increment style. This isn't really necessary in 
this case, but it should help avoid issues in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74178 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-25 16:32:45 +00:00
Owen Anderson
2e69310fd2 Make this thread-safe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74129 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 22:16:52 +00:00
Owen Anderson
09fc0fa0b1 Get rid of a static boolean. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74125 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 22:08:59 +00:00
Andreas Bolka
cb21010fa0 Scaffolding for LDA pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74120 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 21:29:13 +00:00
Owen Anderson
8cbc94afb7 Get rid of the global CFGOnly flag by threading a ShortNames parameters through the GraphViz rendering code. 
Update other uses in the codebase for this change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74084 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 17:37:09 +00:00
Dan Gohman
9311ef6a91 Minor whitespace cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74074 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 14:49:00 +00:00
Dan Gohman
e5aceed168 Simplify [su]max(MAX, n) to MAX. This comes up in loop tripcount 
computations in loops with multiple exits.

Adjust the testcase for PR4436 so that the relevant portion isn't
optimized away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74073 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 14:46:22 +00:00
Dan Gohman
64a845e836 Delete some orphaned comments, fix some 80-column violations, 
and tidy up a few other formatting issues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74060 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 04:48:43 +00:00
Dan Gohman
40a5a1b39e Extend ScalarEvolution's multiple-exit support to compute exact 
trip counts in more cases.

Generalize ScalarEvolution's isLoopGuardedByCond code to recognize
And and Or conditions, splitting the code out into an
isNecessaryCond helper function so that it can evaluate Ands and Ors
recursively, and make SCEVExpander be much more aggressive about
hoisting instructions out of loops.

test/CodeGen/X86/pr3495.ll has an additional instruction now, but
it appears to be due to an arbitrary register allocation difference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74048 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 01:18:18 +00:00
Dan Gohman
62849c065e Teach GetMinSignBits about SCEVAddExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74045 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 01:05:09 +00:00
Dan Gohman
6bbcba18db Move the special cases for constants out of getUnknown and into 
createSCEV. Also, recognize UndefValue in createSCEV.

Change getIntegerSCEV's comment to avoid mentioning FP types,
and re-implement it in terms of getConstant instead of getUnknown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74041 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 00:54:57 +00:00
Dan Gohman
b8be8b70a2 Use ScalarEvolution::getConstant instead of getUnknown to create 
SCEVConstants. This cleanup is a step toward letting getUnknown
be simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74037 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 00:38:39 +00:00
Dan Gohman
aa551ae10e Include the maximum trip count expression in ScalarEvolution's print output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74035 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 00:33:16 +00:00
Dan Gohman
4d289bf4af Add an isAllOnesValue utility function, similar to isZero and isOne. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74032 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-24 00:30:26 +00:00
Devang Patel
9af2fa879c It is not a good idea to have data member's name match argument's name. In fact, it is a simple receipe to waste an hour or so. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74018 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 22:25:41 +00:00
Devang Patel
d933803b51 Use getReturnTypeName() to print return type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74017 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 22:23:13 +00:00
Dan Gohman
91380b7239 Fix a bug in the trip-count computation with And/Or. If either of the 
sides is CouldNotCompute, the resulting exact count must be CouldNotCompute.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73920 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 23:28:56 +00:00
Owen Anderson
e7b6118a51 Remove unneeded #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:09:07 +00:00
Dan Gohman
469f3cdc13 Fix a few minor issues that were exposed by the removal of SCEVHandle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73910 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:08:45 +00:00
Dan Gohman
bd5ce52740 Fix llvm::ComputeNumSignBits to handle pointer types 
conservatively correctly, instead of aborting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:02:32 +00:00
Owen Anderson
753ad615f9 Remove the parent pointer from SCEV, since it did not end up being needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73907 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 21:57:23 +00:00
Owen Anderson
372b46cad9 SCEVHandle is no more! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73906 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 21:39:50 +00:00