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1790 Commits

Author SHA1 Message Date
Duncan Sands
9bc6a90146 Small optimization to speed up replacementPreservesLCSSAForm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122600 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 18:00:24 +00:00
Chris Lattner
a92ff91a96 implement enough of the memset inference algorithm to recognize and insert 
memsets.  This is still missing one important validity check, but this is enough
to compile stuff like this:

void test0(std::vector<char> &X) {
  for (std::vector<char>::iterator I = X.begin(), E = X.end(); I != E; ++I)
    *I = 0;
}

void test1(std::vector<int> &X) {
  for (long i = 0, e = X.size(); i != e; ++i)
    X[i] = 0x01010101;
}

With:
 $ clang t.cpp -S -o - -O2 -emit-llvm | opt -loop-idiom | opt -O3 | llc 

to:

__Z5test0RSt6vectorIcSaIcEE:            ## @_Z5test0RSt6vectorIcSaIcEE
## BB#0:                                ## %entry
	subq	$8, %rsp
	movq	(%rdi), %rax
	movq	8(%rdi), %rsi
	cmpq	%rsi, %rax
	je	LBB0_2
## BB#1:                                ## %bb.nph
	subq	%rax, %rsi
	movq	%rax, %rdi
	callq	___bzero
LBB0_2:                                 ## %for.end
	addq	$8, %rsp
	ret
...
__Z5test1RSt6vectorIiSaIiEE:            ## @_Z5test1RSt6vectorIiSaIiEE
## BB#0:                                ## %entry
	subq	$8, %rsp
	movq	(%rdi), %rax
	movq	8(%rdi), %rdx
	subq	%rax, %rdx
	cmpq	$4, %rdx
	jb	LBB1_2
## BB#1:                                ## %for.body.preheader
	andq	$-4, %rdx
	movl	$1, %esi
	movq	%rax, %rdi
	callq	_memset
LBB1_2:                                 ## %for.end
	addq	$8, %rsp
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 23:42:51 +00:00
Chris Lattner
bb89710ddd move isBytewiseValue out to ValueTracking.h/cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 20:15:01 +00:00
Dan Gohman
df3ee64d79 Constify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122447 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 22:10:08 +00:00
Duncan Sands
82fdab3358 Pull a few more simplifications out of instcombine (there are still 
plenty left though!), in particular for multiplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122330 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 14:00:22 +00:00
Dan Gohman
5034dd318a Move Value::getUnderlyingObject to be a standalone 
function so that it can live in Analysis instead of
VMCore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 20:02:24 +00:00
Duncan Sands
fea3b218d6 Move Sub simplifications and additional Add simplifications out of 
instcombine and into InstructionSimplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121861 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 14:07:39 +00:00
Dan Gohman
4a34cbd2b9 Introduce a new PartialAlias response for AliasAnalysis. For most 
AliasAnalysis consumers, PartialAlias will be treated as MayAlias.

For AliasAnalysis chaining, MayAlias says "procede to the next analysis".
PartialAlias will be used to indicate that the query should terminate,
even though it didn't reach MustAlias or NoAlias.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121507 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 19:38:58 +00:00
Devang Patel
44498a640d Add support to create debug info for functions and methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:42:44 +00:00
Devang Patel
0a2551de2c Add support to create class type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 20:18:20 +00:00
Devang Patel
43c249cf1e Add support to create vector, array, enums etc... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121224 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:50:15 +00:00
Devang Patel
94541efd92 Global variable does not need linkage name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121212 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 00:06:22 +00:00
Devang Patel
48f17ba2a6 Add support to create local variable's debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121211 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:58:00 +00:00
Devang Patel
fe58f95f36 Add support to create variables, structs etc.. using DIBuilder. 
This is still work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:25:47 +00:00
Chris Lattner
cc10244d77 Fix PR8728, a miscompilation I recently introduced. When optimizing 
memcpy's like:
  memcpy(A, B)
  memcpy(A, C)

we cannot delete the first memcpy as dead if A and C might be aliases.
If so, we actually get:

  memcpy(A, B)
  memcpy(A, A)

which is not correct to transform into:

  memcpy(A, A)

This patch was heavily influenced by Jakub Staszak's patch in PR8728, thanks
Jakub!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120974 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 01:48:06 +00:00
Chris Lattner
72c194a8be add a helper method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-06 01:01:28 +00:00
Chris Lattner
a04096580a teach DSE to use GetPointerBaseWithConstantOffset to analyze 
may-aliasing stores that partially overlap with different base
pointers.  This implements PR6043 and the non-variable part of
PR8657


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120485 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 23:05:20 +00:00
Chris Lattner
ed58a6f96f move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120476 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 22:25:26 +00:00
Cameron Zwarich
7285105922 Change the basic block map in LoopInfo from a std::map to a DenseMap. This is a 16% speedup running loops on test-suite + SPEC2000. 
Reviewed by Eric Christopher.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:51:19 +00:00
Chris Lattner
cf82dc376a Rewrite the main DSE loop to be written in terms of reasoning 
about pairs of AA::Location's instead of looking for MemDep's
"Def" predicate.  This is more powerful and general, handling
memset/memcpy/store all uniformly, and implementing PR8701 and
probably obsoleting parts of memcpyoptimizer.

This also fixes an obscure bug with init.trampoline and i8
stores, but I'm not surprised it hasn't been hit yet.  Enhancing
init.trampoline to carry the size that it stores would allow
DSE to be much more aggressive about optimizing them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120406 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 07:23:21 +00:00
Chris Lattner
c413330c99 death to extraneous \n's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 07:20:51 +00:00
Chris Lattner
9dc9e81aa7 getLocationForDest should work for memset as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:48:20 +00:00
Chris Lattner
1ab4285b72 clean up handling of 'free', detangling it from everything else. 
It can be seriously improved, but at least now it isn't intertwined
with the other logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120377 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 01:28:33 +00:00
Michael J. Spencer
1f6efa3996 Merge System into Support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:16:10 +00:00
Duncan Sands
4cd2ad15b4 Expand a little on the description of what InstructionSimplify does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120016 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 10:50:08 +00:00
Duncan Sands
b9b369fa99 Clarify that constant folding of instructions applies when all operands 
are constant.  There was in fact one exception to this (phi nodes) - so
remove that exception (InstructionSimplify handles this so there should
be no loss).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 10:16:18 +00:00
Cameron Zwarich
2974b6ffbc Optimize a common case in the Lengauer-Tarjan dominators algorithm. This gives a 
9.7% speedup running domtree on test-suite.

Reviewed by Chris Lattner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120003 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-23 06:32:37 +00:00
Chris Lattner
16f7993e0d the getLocationForSource/Dest methods can be static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119929 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 08:05:25 +00:00
Chris Lattner
e90c5cb747 add "getLocation" method to AliasAnalysis for getting the source and 
destination location of a memcpy/memmove.  I'm not clear about whether
TBAA works on these, so I'm leaving it out for now.  Dan, please revisit
this when convenient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119928 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:51:27 +00:00
Chris Lattner
f6f1f062cc implement PR8576, deleting dead stores with intervening may-alias stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119927 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-21 07:34:32 +00:00
Duncan Sands
3b0aed19f0 Simplify, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-19 08:33:20 +00:00
Duncan Sands
d0c6f3dafd Factor code for testing whether replacing one value with another 
preserves LCSSA form out of ScalarEvolution and into the LoopInfo
class.  Use it to check that SimplifyInstruction simplifications
are not breaking LCSSA form.  Fixes PR8622.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 19:59:41 +00:00
Dan Gohman
a6d60ddbbb Document the units for the Size field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 17:39:01 +00:00
Dan Gohman
9c9fcfc719 Introduce memoization for ScalarEvolution dominates and properlyDominates 
queries, and SCEVExpander getRelevantLoop queries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-18 00:34:22 +00:00
Dan Gohman
56a7568218 Factor out the code for purging a SCEV from all the various memoization maps. 
Some of these maps may merge in the future, but for now it's convenient to have
a utility function for them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 23:28:48 +00:00
Dan Gohman
714b5290b0 Merge the implementations of isLoopInvariant and hasComputableLoopEvolution, and 
memoize the results. This improves compile time in code which highly complex
expressions which get queried many times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 23:21:44 +00:00
Dan Gohman
4ce32db913 Make SCEV::getType() and SCEV::print non-virtual. Move SCEV::hasOperand 
to ScalarEvolution. Delete SCEV::~SCEV. SCEV is no longer virtual.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119578 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 22:27:42 +00:00
Dan Gohman
dc0e8fb9f9 Move SCEV::dominates and properlyDominates to ScalarEvolution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 21:41:58 +00:00
Dan Gohman
17ead4ff4b Move SCEV::isLoopInvariant and hasComputableLoopEvolution to be member 
functions of ScalarEvolution, in preparation for memoization and
other optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119562 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 21:23:15 +00:00
Dan Gohman
203a7239ae Verify SCEVAddRecExpr's invariant in ScalarEvolution::getAddRecExpr 
instead of in SCEVAddRecExpr's constructor, in preparation for an
upcoming change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119554 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 20:48:38 +00:00
Dan Gohman
7c0fd8eb72 Fix ScalarEvolution's range memoization to avoid using a 
default ctor with ConstantRange.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119550 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 20:23:08 +00:00
Duncan Sands
2b749870d0 Move some those Xor simplifications which don't require creating new 
instructions out of InstCombine and into InstructionSimplify.  While
there, introduce an m_AllOnes pattern to simplify matching with integers
and vectors with all bits equal to one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119536 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 18:52:15 +00:00
Duncan Sands
d261dc650a Previously SimplifyInstruction could report that an instruction 
simplified to itself (this can only happen in unreachable blocks).
Change it to return null instead.  Hopefully this will fix some
buildbot failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 08:35:29 +00:00
Dan Gohman
6678e7b6eb Memoize results from ScalarEvolution's getUnsignedRange and getSignedRange. 
This fixes some extreme compile times on unrolled sha512 code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-17 02:44:44 +00:00
Duncan Sands
1845009290 In which I discover the existence of loops. Threading an operation 
over a phi node by applying it to each operand may be wrong if the
operation and the phi node are mutually interdependent (the testcase
has a simple example of this).  So only do this transform if it would
be correct to perform the operation in each predecessor of the block
containing the phi, i.e. if the other operands all dominate the phi.
This should fix the FFMPEG snow.c regression reported by İsmail Dönmez.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119347 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-16 12:16:38 +00:00
Duncan Sands
eff0581583 If dom tree information is available, make it possible to pass 
it to get better phi node simplification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119055 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 18:36:10 +00:00
Duncan Sands
12a86f5b31 Strip trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 11:23:23 +00:00
Dan Gohman
6d8eb156e6 Add helper functions for computing the Location of load, store, 
and vaarg instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118845 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 21:50:19 +00:00
Dan Gohman
8e78cc4e13 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118799 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 17:33:39 +00:00
Dan Gohman
17e8078ae1 Add brief doxygen comments for AliasResult enum values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118792 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:37:38 +00:00
Dan Gohman
ec9b4ac914 Set NonLocalDepInfo's Size field to UnknownSize when invalidating 
it, so that it doesn't appear to be a known size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:20:27 +00:00
Devang Patel
62367045a4 Take care of special characters while creating named MDNode name to hold function specific local variable's info. 
This fixes radar 8653152. I am checking in testcase as a separate check-in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:19:21 +00:00
Dan Gohman
075fb5d68f Enhance GVN to do more precise alias queries for non-local memory 
references. For example, this allows gvn to eliminate the load in
this example:

  void foo(int n, int* p, int *q) {
    p[0] = 0;
    p[1] = 1;
    if (n) {
      *q = p[0];
    }
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:37:15 +00:00
Dan Gohman
e88ccb545d Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite 
their comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:30:00 +00:00
Dan Gohman
b395e4a026 Fix a copy+pasto Duncan noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:18:23 +00:00
Dan Gohman
68a6056daf Add a doesAccessArgPointees helper function, and update code to use 
it, and to be consistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:17:28 +00:00
Dan Gohman
432d08cbdb Factor out the code for testing whether a function accesses 
arbitrary memory into a helper function, and adjust some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:34:04 +00:00
Dan Gohman
50bcaece67 Give NonLocalDepResult a NonLocalDepEntry member, replacing 
indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:15:52 +00:00
Dan Gohman
42c31a7073 Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis 
chaining and simplify FunctionAttrs' GetModRefBehavior logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 01:02:18 +00:00
Dan Gohman
50a04d067f Convert comments to doxygen syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 20:33:57 +00:00
Dan Gohman
4a53f37a1a AccessesArgumentsReadonly is read-only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:50:00 +00:00
Dan Gohman
db78c4873e Add a AccessesArgumentsReadonly ModRefBehavior value, so that the intrinsic 
property IntrReadArgMem can be modeled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:48:55 +00:00
Dan Gohman
467a0adfc8 Factor out the logic for onlyReadsMemory into a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118611 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:43:24 +00:00
Dan Gohman
7293ac1281 Delete AccessesArgumentsAndGlobals, which was unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-09 19:41:37 +00:00
Dan Gohman
902da265f6 Add some comments noting some correspondences between ModRefBehavior 
values, LLVM IR function attributes, and LLVM intrinsic attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 23:46:02 +00:00
Devang Patel
2c4c6a5e8a Document parameters. Fix typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118424 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 18:28:34 +00:00
Dan Gohman
a25e5dbcc2 Extend the AliasAnalysis::pointsToConstantMemory interface to allow it 
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118412 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 16:45:26 +00:00
Dan Gohman
c80cbf2540 Delete getIntrinsicModRefBehavior. Clients can just use the normal 
getModRefBehavior now, since it now understands intrinsics as well
as normal functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118411 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 16:11:19 +00:00
Dan Gohman
6c25c920e6 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-08 15:34:42 +00:00
Devang Patel
35fcd6557f Introduce DIBuilder. It is intended to be a front-end friendly interface to emit debuggging information entries in LLVM IR. 
To create debugging information for a pointer, using DIBUilder front-end just needs
	DBuilder.CreatePointerType(Ty, Size);
instead of
	DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type,
                                       TheCU, "", getOrCreateMainFile(),
                                       0, Size, 0, 0, 0, OCTy);



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-04 15:01:38 +00:00
Devang Patel
ab70ed41f3 Add getFile() to get DIFile of a DIType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118247 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-04 14:56:34 +00:00
Devang Patel
0e82ac07bc Simplify. 
-      DIFile F = getFieldAs<DIFile>(6); 
-      return F.getDirectory();
+      return getFieldAs<DIFile>(6).getDirectory(); 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117662 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-29 16:42:37 +00:00
Devang Patel
fb9dce3806 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:41:11 +00:00
Devang Patel
8f6a281e97 Backward compatibility. Gracefully handle older versions of debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 20:08:13 +00:00
Devang Patel
bc2bb9bbd0 Do not work too hard to find type's file info. There is a special field to record file info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:50:08 +00:00
Devang Patel
42d3a34575 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:40:13 +00:00
Devang Patel
a514a4e172 Do not rely on context to find file info. It is already provided as a separate field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-28 19:14:28 +00:00
Devang Patel
f95a271922 Give a name to nameless argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-27 18:08:31 +00:00
Benjamin Kramer
a53fe6070c SmallVectorize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117213 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-23 17:10:24 +00:00
Tobias Grosser
6551360535 Add RegionPass support. 
A RegionPass is executed like a LoopPass but on the regions detected by the
RegionInfo pass instead of the loops detected by the LoopInfo pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116905 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-20 01:54:44 +00:00
Dan Gohman
db4708cf86 Move NoAA out of BasicAliasAnalysis.cpp into its own file, now that 
it doesn't have a special relationship with BasicAliasAnalysis
anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 23:09:08 +00:00
Dan Gohman
3da848bbda Reapply r116831 and r116839, converting AliasAnalysis to use 
uint64_t, plus fixes for places I missed before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 22:54:46 +00:00
Dan Gohman
1db839e734 Revert r116831 and r116839, which are breaking selfhost builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 21:06:16 +00:00
Dan Gohman
9cb4c7f878 Oops, check in all the files for converting AliasAnalysis to 
use uint64_t.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116839 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 18:08:27 +00:00
Owen Anderson
081c34b725 Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which 
must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-19 17:21:58 +00:00
Dan Gohman
eee5400442 Make the representation of AliasSets explicitly differentiate 
between "not known yet" and "known no tbaa info" so that it
can merge them properly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 23:31:47 +00:00
Dan Gohman
fb8096dee5 Don't pass the raw invalid pointer used to represent conflicting 
TBAA information to AliasAnalysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116751 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 21:28:00 +00:00
Dan Gohman
a8702eaf78 Make AliasSetTracker TBAA-aware, enabling TBAA-enabled LICM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116743 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-18 20:44:50 +00:00
Benjamin Kramer
e98fbba91f Remove noisy semicolon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116407 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 15:55:12 +00:00
Tobias Grosser
b227930cd6 Add Region::isTopLevelRegion(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 11:02:44 +00:00
Tobias Grosser
592316c419 RegionInfo: Update RegionInfo after a BB was split. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:13 +00:00
Tobias Grosser
c69bd733c0 RegioInfo: Add getExpandedRegion(). 
getExpandedRegion() enables us to create non canonical regions. Those regions
can be used to define the largerst region, that fullfills a certain property.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:11 +00:00
Tobias Grosser
4bcc0228dc RegionInfo: Allow to update exit and entry of a region. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116396 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:10 +00:00
Tobias Grosser
9649390e1f RegionInfo: Enhance addSubregion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:09 +00:00
Tobias Grosser
9ee5c50776 RegionInfo: Allow to set the parent region of a basic block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116394 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-13 05:54:07 +00:00
Kenneth Uildriks
74fa7327d6 Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-09 22:06:36 +00:00
Kenneth Uildriks
ca52c8ba12 Start separating out code metrics into code size metrics and code performance metrics. Partial Specialization will apply the former to function specializations, and the latter to all callsites that can use a specialization, in order to decide whether to create a specialization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 13:57:31 +00:00
Devang Patel
7b172c6ae6 Provie a clearner interface so that FE can decide whether a function has prototype or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:03:01 +00:00
Devang Patel
d6747df5e0 Add support for DW_TAG_unspecified_parameters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115833 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 20:50:40 +00:00
Dan Gohman
14e8190f43 Constify isReachableFromEntry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 15:49:14 +00:00