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295610c408
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317 Commits

Author SHA1 Message Date
Owen Anderson
295610c408 Fix a serious bug that would cause deadlock during abstract type refinement. The constant creation 
gets involved, and we end up trying to recursively acquire a writer lock.  The fix for this is slightly horrible,
and involves passing a boolean "locked" parameter around in Constants.cpp, but it's better than having locked and
unlocked versions of most of the code.

llvm-svn: 73790
 2009-06-19 23:16:19 +00:00
Owen Anderson
7f70078b63 Forgot to remove some explicit locking when it became implicit in the ValueMap. 
llvm-svn: 73778
 2009-06-19 18:34:09 +00:00
Owen Anderson
5d40f51e4e Simplify a lot of code by using a R/W mutex that becomes a no-op when multithreading is disabled. 
llvm-svn: 73714
 2009-06-18 19:10:19 +00:00
Owen Anderson
a59f91c08d Move Threading.[h|cpp] from Support to System. 
llvm-svn: 73707
 2009-06-18 16:54:52 +00:00
Owen Anderson
b43a8ba8e5 Factor out some common code. 
llvm-svn: 73631
 2009-06-17 20:43:39 +00:00
Owen Anderson
f8776799ec Add an RAII ScopedWriter, which allows one to acquire a writer lock for the duration of a scope. Simplify a lot of uses of 
writer locks in Constants.cpp by using it.

llvm-svn: 73630
 2009-06-17 20:34:43 +00:00
Owen Anderson
3bf7bd1297 Simplify the locking on the Constants tables, and make it more efficient, by pushing it into the ValueMap from the callers. 
Document those ValueMap functions that are _not_ locked, so that callers are aware that they need to do the locking themselves.

llvm-svn: 73628
 2009-06-17 20:10:08 +00:00
Owen Anderson
fedb566872 Type safety for Constants.cpp! Some of this is temporary, as I'm planning to push some of the R/W locking into FoldingSet. 
llvm-svn: 73624
 2009-06-17 18:40:29 +00:00
Dan Gohman
0b9e2dc359 Use Type::isIntOrIntVector and Type::isFPOrFPVector. 
llvm-svn: 73433
 2009-06-15 22:25:12 +00:00
Dan Gohman
2e737ac21f Support vector casts in more places, fixing a variety of assertion 
failures.

To support this, add some utility functions to Type to help support
vector/scalar-independent code. Change ConstantInt::get and
ConstantFP::get to support vector types, and add an overload to
ConstantInt::get that uses a static IntegerType type, for
convenience.

Introduce a new getConstant method for ScalarEvolution, to simplify
common use cases.

llvm-svn: 73431
 2009-06-15 22:12:54 +00:00
Dan Gohman
5f6f8101d5 Split the Add, Sub, and Mul instruction opcodes into separate 
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt

llvm-svn: 72897
 2009-06-04 22:49:04 +00:00
Nick Lewycky
a9de2f1c81 Give embedded metadata its own type instead of relying on EmptyStructTy. 
llvm-svn: 72610
 2009-05-30 05:06:04 +00:00
Duncan Sands
316352b541 Add a getAlignOf helper for getting the ABI alignment of a 
type as a target independent constant expression.  I confess
that I didn't check that this method works as intended (though
I did test the equivalent hand-written IR a little).  But what
could possibly go wrong!

llvm-svn: 72213
 2009-05-21 15:52:21 +00:00
Nick Lewycky
f417462ddf Make MDNode use CallbackVH. Also change MDNode to store Value* instead of 
Constant* in preperation of a future change to support holding non-Constants
in an MDNode.

llvm-svn: 71407
 2009-05-10 20:57:05 +00:00
Nick Lewycky
eea5412e19 Add support for embedded metadata to LLVM. This introduces two new types of 
Constant, MDString and MDNode which can only be used by globals with a name
that starts with "llvm." or as arguments to a function with the same naming
restriction.

llvm-svn: 68420
 2009-04-04 07:22:01 +00:00
Anton Korobeynikov
d03a7a7e8c Fix infinite looping 
llvm-svn: 68034
 2009-03-30 15:28:21 +00:00
Anton Korobeynikov
b026804e7c Properly propagate Kind. 
llvm-svn: 68033
 2009-03-30 15:28:00 +00:00
Anton Korobeynikov
9b5ffaf6ca Extend the relocation tracker handler, so we can filter on different 'kinds' of relocations required. 
llvm-svn: 68004
 2009-03-29 17:13:18 +00:00
Chris Lattner
38c6f460d2 add a fastpath to ConstantExpr::getBitCast to handle the case when an obviously 
unneeded bitcast is requested.  This is common for frontends who just unconditionally
cast even if the target is often the right type already.  THis prevents going into
getFoldedCast which switches on the opcode and does a bunch of other stuff before
doing the same opzn.

llvm-svn: 67435
 2009-03-21 06:55:54 +00:00
Dan Gohman
4646e714c4 Apply a patch by Micah Villmow to fix AsmParser to accept vector 
shift constant expressions, and add support for folding vector
shift constant expressions. This fixes PR3802.

llvm-svn: 67010
 2009-03-14 17:09:17 +00:00
Chris Lattner
950cbfb6c0 fix typo 
llvm-svn: 66367
 2009-03-08 04:06:26 +00:00
Dan Gohman
51d4e8db6a Fix a bunch of Doxygen syntax issues. Escape special characters, 
and put @file directives on their own comment line.

llvm-svn: 65920
 2009-03-03 02:55:14 +00:00
Nate Begeman
8b548c0a9e Add suppport for ConstantExprs of shufflevectors whose result type is not equal to the 
type of the vectors being shuffled.

llvm-svn: 64401
 2009-02-12 21:28:33 +00:00
Chris Lattner
befcb38427 select constant exprs should have the same constraints as select instructions, 
notably, they should support vectors and aggregates.

llvm-svn: 61462
 2008-12-29 00:16:12 +00:00
Dan Gohman
f187690987 Make ConstantAggregateZero::get return a ConstantAggregateZero*, 
as suggested in PR3182.

llvm-svn: 60691
 2008-12-08 07:10:54 +00:00
Devang Patel
09aea7e93e Fix unused variable warnings. 
llvm-svn: 58653
 2008-11-03 23:20:04 +00:00
Bill Wendling
617f3d4b3a Fix type-o in ExprMapKeyType::operator ==(). The "&&" was missing. 
Patch by Frits van Bommel!

llvm-svn: 58175
 2008-10-26 00:19:56 +00:00
Dale Johannesen
075a62519f Add a "loses information" return value to APFloat::convert 
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.

llvm-svn: 57329
 2008-10-09 23:00:39 +00:00
Gordon Henriksen
3a9a0e274b Fix ConstantExpr::getInsertElement. 
Breakage was exposed in the Ocaml bindings tests after Chris
uncommented an assertion in r55084.

llvm-svn: 55566
 2008-08-30 15:41:51 +00:00
Chris Lattner
9e471bdb4b the bug was apparently fixed long ago, reenable the assertion 
llvm-svn: 55224
 2008-08-23 03:48:35 +00:00
Dale Johannesen
aa332f4fca Accept NOT of a constant vector of int. 
llvm-svn: 55140
 2008-08-21 21:20:09 +00:00
Chris Lattner
7a310366a6 Add a new ConstantExpr::getWithOperands that takes any array of operands 
instead of requiring an std::vector.

llvm-svn: 55084
 2008-08-20 22:27:40 +00:00
Dan Gohman
de163bb39d Fix several const-correctness issues, resolving some -Wcast-qual warnings. 
llvm-svn: 54349
 2008-08-05 14:45:15 +00:00
Nate Begeman
a6cdff50b0 Remove unnecessary implicit argument 
llvm-svn: 54031
 2008-07-25 17:56:27 +00:00
Nate Begeman
ce064348d9 Fix minor issues with VICmp/VFCmp constant expressions 
llvm-svn: 54030
 2008-07-25 17:35:37 +00:00
Dan Gohman
183bd17a66 InsertValue and ExtractValue constant expressions are always 
folded. Remove code that handled the case where they aren't
folded, and remove bitcode reader/writer support for them.

llvm-svn: 53887
 2008-07-21 23:30:30 +00:00
Chris Lattner
b786d147c9 Fix a bunch of bugs handling vector compare constant expressions, fixing 
PR2317.

llvm-svn: 53544
 2008-07-14 05:17:31 +00:00
Chris Lattner
accde0a86b Document and fix Constant::getVectorElements to return an empty vector 
when presented with a constant expr.

If ConstantExpr::getV[IF]Cmp to work when ConstantFoldCompareInstruction
returns an undef or constant expr.  

llvm-svn: 53541
 2008-07-14 05:10:41 +00:00
Dan Gohman
d1342570f2 Use find instead of lower_bound. 
llvm-svn: 53474
 2008-07-11 20:58:19 +00:00
Chris Lattner
7797bfa0fd SImplify ConstantVector::get a bit and make it turn a vector 
of all undefs into a single undef value.

llvm-svn: 53384
 2008-07-10 00:44:03 +00:00
Chris Lattner
6c12d086d9 add a helper method for code that wants to handle vector 
constants by element without caring how they are formed.

llvm-svn: 53381
 2008-07-10 00:28:11 +00:00
Matthijs Kooijman
b7ade2592f Add newline at the end of Constants.cpp. 
llvm-svn: 53092
 2008-07-03 07:46:41 +00:00
Evan Cheng
2005804de6 - Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag. 
- Correctly handle memcpy from constant string which is zero-initialized.

llvm-svn: 52891
 2008-06-30 07:31:25 +00:00
Anton Korobeynikov
6f260767ec Revert (52748 and friends): 
Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

This unbreaks llvm-gcc bootstrap.

llvm-svn: 52884
 2008-06-29 17:57:03 +00:00
Eric Christopher
4f05c48718 Move GetConstantStringInfo to lib/Analysis. Remove 
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

llvm-svn: 52748
 2008-06-26 00:31:12 +00:00
Owen Anderson
968d4e2444 Use push_back rather than operator[], which is incorrect in this cases. Unfortunately, this slow the testcase down a little bit, 
but only marginally.

llvm-svn: 52700
 2008-06-25 01:05:05 +00:00
Owen Anderson
673cae8561 In ConstantArray::getAsString(), we know the size of the resultant string in advance so we can pre-allocate it and just fill in 
the entries.  This improves the time for the AsmPrinter on InstructionCombining.cpp from 0.4248s to 0.3370s.

llvm-svn: 52690
 2008-06-24 21:58:29 +00:00
Dan Gohman
d9e2c8b72a More changes from Chris' review: simplify getIndices and avoid 
copying its return value.

llvm-svn: 52627
 2008-06-23 16:39:44 +00:00
Dan Gohman
fbf0f6cf8e Constant folding for insertvalue and extractvalue. 
llvm-svn: 51889
 2008-06-03 00:15:20 +00:00
Dan Gohman
caa9c6e94d Fix some bugs with the handling of indices in insertvalue/extractvalue. 
llvm-svn: 51820
 2008-05-31 19:09:08 +00:00