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160 Commits

Author SHA1 Message Date
Devang Patel
06fdaccc89 Destroy MDNodes gracefully while deleting llvm context. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96609 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-18 20:53:16 +00:00
Victor Hernandez
e685f230b6 Add MDNode::getIfExists(), an efficient way to determine if a value is used by metadata (since metadata does not appear in a value's use list) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:36:35 +00:00
Devang Patel
bc5201f837 Remove MetadataBase class because it is not adding significant value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94243 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 22:52:10 +00:00
Chris Lattner
d3a6d90da7 tidy up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-21 21:01:47 +00:00
Victor Hernandez
6f8694b272 Fix if/else brackets; getFunctionForValue() is to be called for non-metadata values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93984 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 06:22:33 +00:00
Chandler Carruth
9520cc2eae Fix the conditions to unambiguously show the logic they represent. This is the 
logic enforced in the test case as well, so hopefully it is correct. Please
review Victor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93980 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 06:01:02 +00:00
Victor Hernandez
8fffff5371 Refactor common parts of MDNode::getFunction() and assertLocalFunction() into getFunctionForValue() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 04:45:57 +00:00
Victor Hernandez
6cead7879a Add comment that MDNode::getFunction() is not to be used by performance-critical code (currently only used by AsmWriter) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93802 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 22:55:08 +00:00
Victor Hernandez
54630e1cef Simplify MDNode::getFunction() and assertLocalFunction() by avoiding extra Function* variable and smallptrset since function-local metadata cannot be cyclic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93762 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 20:36:54 +00:00
Victor Hernandez
e05f66ef2e In debug builds, assert that function-local metadata has only 1 parent function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 20:12:34 +00:00
Victor Hernandez
c7650b4d19 Add MDNode::getFunction(), which figures out the metadata's function, if it has function that it is local to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 01:45:14 +00:00
Benjamin Kramer
b357e06f67 Introduce Twine::toStringRef, a variant of toVector which avoids the copy if the 
twine can be represented as a single StringRef. Use the new methode to simplify
some twine users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 12:45:23 +00:00
Devang Patel
d77fdba573 Use Twine, instead of StringRef, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93249 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:57:56 +00:00
Devang Patel
26028f27dd Use ilist_tratis to autoinsert and remove NamedMDNode from MDSymbolTable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93247 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:34:06 +00:00
Mikhail Glushenkov
0d75d874bf Suppress a warning on gcc 4.4. 
warning: suggest parentheses around ‘&&’ within ‘||’.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 18:48:49 +00:00
Victor Hernandez
24e64df7ec Compute isFunctionLocal in MDNode ctor or via argument in new function getWhenValsUnresolved(). 
Document PFS argument to ParseValID() and ConvertGlobalOrMetadataValIDToValue().



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 07:14:18 +00:00
Devang Patel
8fba578be7 Derive NamedMDNode from Value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 00:30:14 +00:00
Devang Patel
0386f01e06 Use separate namespace for named metadata. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92931 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 19:39:36 +00:00
Devang Patel
3e30c2a3c5 NamedMDNode is a collection MDNodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 20:41:31 +00:00
Chris Lattner
5d0cacdbb6 rename "elements" of metadata to "operands". "Elements" are 
things that occur in types.  "operands" are things that occur
in values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92322 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-31 01:22:29 +00:00
Chris Lattner
b76359e36e Optimize MDNode to coallocate the operand list immediately 
after the MDNode in memory.  This eliminates the operands
pointer and saves a new[] per node.

Note that the code in DIDerivedType::replaceAllUsesWith is wrong
and quite scary.  A MDNode should not be RAUW'd with something
else: this changes all uses of the mdnode, which may not be debug
info related!  Debug info should use something non-mdnode for
declarations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92321 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-31 01:05:46 +00:00
Chris Lattner
54a1f9f9c1 do not bother reuniquing mdnodes whose operands drop to null. Doing 
so can be a huge performance issue when tearing down modules and mdnodes
are not guaranteed to be unique anyway.  This speeds up:
$ time ~/llvm/Release/bin/clang gcc.c -w -S -g

from 72 to 35s, where gcc.c is from:
http://people.csail.mit.edu/smcc/projects/single-file-programs/



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92315 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-30 21:42:11 +00:00
Chris Lattner
081134741b Final step in the metadata API restructuring: move the 
getMDKindID/getMDKindNames methods to LLVMContext (and add
convenience methods to Module), eliminating MetadataContext.
Move the state that it maintains out to LLVMContext.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92259 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 09:01:33 +00:00
Chris Lattner
b17f65829c privatize another interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92255 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 07:56:15 +00:00
Chris Lattner
44f3d23b60 the only call to this function (from clang) has been removed, zap it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92254 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 07:50:09 +00:00
Chris Lattner
508b19a5a4 remove some unneeded Metadata interfaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 07:44:16 +00:00
Chris Lattner
a43a3f2379 When doing v1->RAUW(v2), don't do anything to metadata. We don't know 
why one was replaced with the other.  Even in the specific case of 
debug information, it doesn't make sense to transfer the location over,
this will just result in jumbled loc info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92241 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 02:53:52 +00:00
Chris Lattner
b2406d9895 sink the Instruction::HasMetadata bit into SubclassData. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92240 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 02:46:09 +00:00
Chris Lattner
cafe9bba32 add a layer of accessors around the Value::SubClassData member, and use 
a convention (shadowing the setter with private forwarding function) to
prevent subclasses from accidentally using it.

This exposed some bogosity in ConstantExprs, which was propaging the
opcode of the constant expr into the NUW/NSW/Exact field in the
getWithOperands/getWithOperandReplaced methods.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92239 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-29 02:14:09 +00:00
Chris Lattner
3990b121cf This is a major cleanup of the instruction metadata interfaces that 
I asked Devang to do back on Sep 27.  Instead of going through the
MetadataContext class with methods like getMD() and getMDs(), just
ask the instruction directly for its metadata with getMetadata()
and getAllMetadata().

This includes a variety of other fixes and improvements: previously
all Value*'s were bloated because the HasMetadata bit was thrown into
value, adding a 9th bit to a byte.  Now this is properly sunk down to
the Instruction class (the only place where it makes sense) and it
will be folded away somewhere soon.

This also fixes some confusion in getMDs and its clients about 
whether the returned list is indexed by the MDID or densely packed.
This is now returned sorted and densely packed and the comments make
this clear.

This introduces a number of fixme's which I'll follow up on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92235 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 23:41:32 +00:00
Chris Lattner
0eb419800a rename getMDKind -> getMDKindID, make it autoinsert if an MD Kind 
doesn't exist already, eliminate registerMDKind.  Tidy up a bunch
of random stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92225 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 20:45:51 +00:00
Chris Lattner
7d05c46d60 rename getHandlerNames to getMDKindNames, simplify its interface 
and simplify all the clients that use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92224 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 20:10:43 +00:00
Chris Lattner
06ac32cc86 tidy up and delete a dead smallvector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92223 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 19:49:00 +00:00
Chris Lattner
df58389ef1 avoid a completely unneeded linear walk. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92221 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 09:32:10 +00:00
Chris Lattner
496425774e Eliminate two bits of ugliness in MDNode::replaceElement: 
eliminate the temporary smallvector, and only do FindNodeOrInsertPos
twice if the first one succeeds and we delete a node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92220 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 09:24:53 +00:00
Chris Lattner
f2410180d0 rearrange some methods, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92219 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 09:12:35 +00:00
Chris Lattner
1d880e5114 avoid temporary CallbackVH's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92218 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 09:10:16 +00:00
Chris Lattner
b241b37031 Rewrite the function-local validation logic for MDNodes (most of r91708). 
Among other benefits, this doesn't leak the SmallPtrSet, has the verifier
code in the verifier pass, actually does the verification at the end,
and is considerably simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92217 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 09:07:21 +00:00
Chris Lattner
dfdb5dcf56 rename MDNode instance variables to something meaningful. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92216 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 08:48:12 +00:00
Chris Lattner
5e9cd43423 snip one more #include from Metadata.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92214 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 08:30:43 +00:00
Chris Lattner
37da0ad07b prune some #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92212 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 08:24:16 +00:00
Chris Lattner
bcb18538c2 change the strange MetadataContext::getMDs function to expose less 
irrelevant internal implementation details to clients.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 08:14:54 +00:00
Chris Lattner
5710969728 change NamedMDNode to use a pimpl for its operand list instead 
of making it a declared part of the value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92209 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 08:07:14 +00:00
Chris Lattner
c5e08a9639 move ElementVH out of the MDNode class into the MDNode.cpp file. Among 
other things, this avoids vtable and rtti data for it being splatted in 
every translation unit that uses it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92207 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-28 07:41:54 +00:00
Eli Friedman
3eed182e2d Fix gcc warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91715 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-18 21:07:18 +00:00
Victor Hernandez
5d30162150 Formalize MDNode's function-localness: 
- an MDNode is designated as function-local when created, and continues to be even if its operands are modified not to refer to function-local IR
- function-localness is designated via lowest bit in SubclassData
- getLocalFunction() descends MDNode tree to see if it is consistently function-local

Add verification of MDNodes to checks that MDNodes are consistently function-local.
Update AsmWriter to use isFunctionLocal().



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91708 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-18 20:09:14 +00:00
Victor Hernandez
6bc2b8b215 Use different name for argument and field 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91524 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-16 08:10:57 +00:00
Victor Hernandez
57c0f20601 MDNodes that refer to an instruction are local to a function; in that case, explicitly keep track of the function they are local to 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91497 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-16 02:52:09 +00:00
Nick Lewycky
807d2fa1eb Oops! Fix bug introduced in my recent cleanup change. Thanks to Tobias Grosser 
for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90015 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 19:57:53 +00:00
Nick Lewycky
dbee4b3be5 Fix typo spotted by Gabor Greif. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 23:19:05 +00:00