Commit Graph

2810 Commits

Author SHA1 Message Date
Chris Lattner
e05a188cd6 add accessor, improve comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90792 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-07 19:45:30 +00:00
Victor Hernandez
2f9dac721d Introduce the "@llvm.dbg.value" debug intrinsic.
The semantics of llvm.dbg.value are that starting from where it is executed, an offset into the specified user source variable is specified to get a new value.

An example:
  call void @llvm.dbg.value(metadata !{ i32 7 }, i64 0, metadata !2)
Here the user source variable associated with metadata #2 gets the value "i32 7" at offset 0.
 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90788 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-07 19:36:34 +00:00
Chris Lattner
6fcca1cc87 add support for phi translation and incorpation of new expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90782 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-07 19:04:49 +00:00
Chris Lattner
9a8641201b checkpoint of the new PHITransAddr code, still not done and not used by
anything.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90779 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-07 18:36:53 +00:00
Nick Lewycky
93d3311d1f Fix indentation in switch statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90650 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-05 06:37:24 +00:00
Chris Lattner
44a7a380aa Fix PR5551 by not ignoring the top level constantexpr when
folding a load from constant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90545 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04 06:29:29 +00:00
Chris Lattner
bbf9a5845a add to cmake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04 04:15:36 +00:00
Chris Lattner
210e45af3a add the start of a class used to handle phi translation in memdep and
gvn (this is just a skeleton so far).  This will ultimately be used
to fix a nasty miscompilation with GVN.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90518 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04 02:10:16 +00:00
Bob Wilson
eb35699e64 Fix a comment typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90511 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-04 01:33:04 +00:00
Devang Patel
5d11eb0ed5 Add support to emit debug info for virtual functions and virtual base classes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90474 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 19:11:07 +00:00
Benjamin Kramer
88a91b579b Fix MSVC build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 13:23:03 +00:00
Andreas Neustifter
8c30abec6d Convert ProfileVerifier to template so it can be used for different types of ProfileInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90451 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 12:55:57 +00:00
Andreas Neustifter
1640f7e033 Do not create negative edge weights in ProfileEstimator.
Use integer values for weights to prevent rounding errors.
Make ProfileEstimator more robust in general CFGs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90449 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 12:41:14 +00:00
Andreas Neustifter
44299c9507 Use ProfileInfo-API in ProfileInfo Loader and do more assertions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 11:00:37 +00:00
Andreas Neustifter
e2baf6b455 Converted ProfileInfo to template, added more API for ProfileInfo-preserving.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90445 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 09:30:12 +00:00
Chris Lattner
e568fa2d29 fix PR5673 by being more careful about pointers to functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90369 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 01:05:45 +00:00
Chris Lattner
7896c9f436 improve portability to avoid conflicting with std::next in c++'0x.
Patch by Howard Hinnant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 00:50:42 +00:00
Benjamin Kramer
0fea11a805 Silence compiler warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90319 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02 15:33:44 +00:00
Owen Anderson
9ff5a23186 Cleanup/remove some parts of the lifetime region handling code in memdep and GVN,
per Chris' comments.  Adjust testcases to match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90304 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02 07:35:19 +00:00
Mon P Wang
69a008075b Fixed an assertion failure for tracking sext of a vector of integers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90290 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02 04:59:58 +00:00
Devang Patel
e3a18de4f6 Add utility routine to create subprogram definition entry from subprogram declaration entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90282 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01 23:09:02 +00:00
Chris Lattner
1e8de49fe7 rename some variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01 21:16:01 +00:00
Chris Lattner
1ffb70f21d tidy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01 21:15:15 +00:00
Chris Lattner
855d9da596 fix 255.vortex again, third time's the charm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90217 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-01 07:33:32 +00:00
Tobias Grosser
56f4ef3232 Remove ShortNames from getNodeLabel in DOTGraphTraits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 12:38:47 +00:00
Tobias Grosser
a10d598602 Instantiate DefaultDOTGraphTraits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90133 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 12:38:13 +00:00
Tobias Grosser
2833fac273 Small PostDominatorTree improvements
* Do not SEGFAULT if tree entryNode() is NULL
 * Print function names in dotty printer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90130 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 12:06:37 +00:00
Nick Lewycky
f58e86d762 Revert r90107, fixing test/Transforms/GVN/2009-11-29-ReverseMap.ll and the
llvm-gcc build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90113 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 07:05:51 +00:00
Chris Lattner
366429b400 reapply r90093 with an addition of keeping the forward
and reverse nonlocal memdep maps in synch, this should
fix 255.vortex.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90107 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30 02:26:29 +00:00
Nick Lewycky
fac554a131 Teach ConstantFolding to do a better job when folding gep(bitcast).
This permits the devirtualization of llvm.org/PR3100#c9 when compiled by clang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90099 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-29 21:40:55 +00:00
Chris Lattner
ae3d24880d revert this patch for now, it causes failures of:
LLVM::Transforms/GVN/2009-02-17-LoadPRECrash.ll
    LLVM::Transforms/GVN/2009-06-17-InvalidPRE.ll



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90096 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-29 21:14:59 +00:00
Chris Lattner
1903d97c2c Fix a really nasty caching bug I introduced in memdep. An entry
was being added to the Result vector, but not being put in the
cache.  This means that if the cache was reused wholesale for a
later query that it would be missing this entry and we'd do an
incorrect load elimination.

Unfortunately, it's not really possible to write a useful 
testcase for this, but this unbreaks 255.vortex.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90093 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-29 21:09:36 +00:00
Nick Lewycky
2eac9493fc Detabify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90085 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-29 18:10:39 +00:00
Nick Lewycky
d801c10de6 Teach memdep to look for memory use intrinsics during dependency queries. Fixes
PR5574.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90045 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-28 21:27:49 +00:00
Chris Lattner
dd696052f0 Enhance InsertPHITranslatedPointer to be able to return a list of newly
inserted instructions.  No functionality change until someone starts using it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-28 15:39:14 +00:00
Chris Lattner
ab9530ee5d implement a FIXME: limit the depth that DecomposeGEPExpression goes the same
way that getUnderlyingObject does it. 

This fixes the 'DecomposeGEPExpression and getUnderlyingObject disagree!' 
assertion on sqlite3.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90038 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-28 15:12:41 +00:00
Chris Lattner
af7a28939e enable code to handle un-phi-translatable cases more aggressively:
if we don't have an address expression available in a predecessor,
then model this as the value being clobbered at the end of the pred
block instead of being modeled as a complete phi translation failure.
This is important for PRE of loads because we want to see that the
load is available in all but this predecessor, and complete phi
translation failure results in not getting any information about
predecessors.

This doesn't do anything until I renable code insertion since PRE
now sees that it is available in all but one predecessors, but can't
insert the addressing in the predecessor that is missing it to 
eliminate the redundancy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90037 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-28 14:54:10 +00:00
Chris Lattner
6f7b210b25 Rework InsertPHITranslatedPointer to handle the recursive case, this
fixes PR5630 and sets the stage for the next phase of goodness (testcase
pending).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 22:05:15 +00:00
Chris Lattner
5141421e38 recursively phi translate bitcast operands too, for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90016 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 20:25:30 +00:00
Chris Lattner
11c6bab704 add support for recursive phi translation and phi
translation of add with immediate.  This allows us
to optimize this function:

void test(int N, double* G) {
  long j;
  G[1] = 1;
    for (j = 1; j < N - 1; j++)
        G[j+1] = G[j] + G[j+1];
}

to only do one load every iteration of the loop.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90013 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 19:11:31 +00:00
Chris Lattner
8aee8efc0c factor some logic out of instcombine into a new SimplifyAddInst method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 17:42:22 +00:00
Chris Lattner
9763487bd5 add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90002 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 08:40:14 +00:00
Chris Lattner
e95035aea4 reduce nesting, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90001 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 08:37:22 +00:00
Chris Lattner
a650f770d4 limit the recursion depth of GetLinearExpression. This
fixes a crash analyzing consumer-lame, which had an "%X = add %X, 1"
in unreachable code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90000 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 08:32:52 +00:00
Chris Lattner
616613d7a4 teach GVN's load PRE to insert computations of the address in predecessors
where it is not available.  It's unclear how to get this inserted 
computation into GVN's scalar availability sets, Owen, help? :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89997 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 08:25:10 +00:00
Chris Lattner
62deff066c Fix phi translation in load PRE to agree with the phi
translation done by memdep, and reenable gep translation 
again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89992 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 06:31:14 +00:00
Chris Lattner
b99be5beac redisable this, my bootstrap worked because it wasn't an optimized build, whoops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89991 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 05:53:01 +00:00
Chris Lattner
cca130bb66 try again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89990 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 05:19:56 +00:00
Chris Lattner
518c988ae9 this is causing buildbot failures, disable for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89985 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 01:52:22 +00:00
Chris Lattner
e19e4baf3b teach phi translation of GEPs to simplify geps like 'gep x, 0'.
This allows us to compile the example from PR5313 into:

LBB1_2:                                                     ## %bb
	incl	%ecx
	movb	%al, (%rsi)
	movslq	%ecx, %rax
	movb	(%rdi,%rax), %al
	testb	%al, %al
	jne	LBB1_2

instead of:

LBB1_2:                                                     ## %bb
	movslq	%eax, %rcx
	incl	%eax
	movb	(%rdi,%rcx), %cl
	movb	%cl, (%rsi)
	movslq	%eax, %rcx
	cmpb	$0, (%rdi,%rcx)
	jne	LBB1_2



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89981 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-27 00:34:38 +00:00