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134 Commits

Author SHA1 Message Date
Dan Gohman
17aa92c92a Make NamedMDNode not be a subclass of Value, and simplify the interface 
for creating and populating NamedMDNodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109061 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 23:38:33 +00:00
Dan Gohman
872814ae04 Disallow null as a named metadata operand. 
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 18:54:18 +00:00
Dan Gohman
d9c86dc6d9 Use TrackingVH instead of WeakVH for NamedMDNode's operands, since nodes 
referenced by NamedMDNodes shouldn't be deleted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 18:01:42 +00:00
Dan Gohman
1ec7f5feb3 Tidy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109020 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 17:53:53 +00:00
Dan Gohman
4f1be4abba Rename removeAllMetadata to clearMetadataHashEntries and simplify 
it to just do the things that need to be done when an instruction
is deleted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 22:25:04 +00:00
Dan Gohman
a09e67af33 Remove setDbgMetadata and getDbgMetadata; their users have been 
replaced with setDebugLoc and getDebugLoc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-20 20:18:21 +00:00
Dan Gohman
ac80975ea4 Add support for empty metadata nodes: !{}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108259 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-13 19:33:27 +00:00
Devang Patel
6db2389d69 Add fixme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107697 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-06 21:05:17 +00:00
Duncan Sands
d29f5282e0 Fix a problem exposed by my previous commit and noticed by a release-asserts 
buildbot: the debugging and non-debugging versions of getFunction were not
functionally equivalent: the non-debugging version wrongly assumed that if a
metadata operand was not metadata, then it had a non-null containing function.
This is not true, since the operand might be a global value, constant etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 14:25:42 +00:00
Duncan Sands
203f7cb68b Fix a variant of PR6112 found by thinking about it: when doing 
RAUW of a global variable with a local variable in function F,
if function local metadata M in function G was using the global
then M would become function-local to both F and G, which is not
allowed.  See the testcase for an example.  Fixed by detecting
this situation and zapping the metadata operand when it occurs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103007 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 12:43:36 +00:00
Chris Lattner
f3f325b82f fix PR6112 - When globalopt (or any other pass) does RAUW(@G, %G), 
metadata references in non-function-local MDNodes should drop to 
null.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 20:16:12 +00:00
Chris Lattner
84e679beea rename NewDebugLoc -> DebugLoc, prune #includes in DebugLoc.h. 
This keeps around temporary typedef for clang/llvm-gcc so the
build won't break when I commit this :)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100218 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-02 20:21:22 +00:00
Chris Lattner
61336ae001 Switch the representation of the location in instruction from 
being a TrackingVH<MDNode> to a NewDebugLoc, shrinking 
sizeof(Instruction) a lot, and providing clients the ability
to deal with locations in terms of NewDebugLoc instead of
having to deal with Metadata.  This is still fully compatible
with all clients that *do* use MDNodes for everything of
course.

No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100088 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-01 05:23:13 +00:00
Chris Lattner
870cfcf9a6 add new apis for getting/setting !dbg metadata on 
instructions.  In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people should be
doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-31 03:34:40 +00:00
Chris Lattner
ec39f095f5 Fix a major source of compile-time slowness at -O0 -g by optimizing 
the storage of !dbg metadata kinds in the instruction themselves.
The on-the-side hash table works great for metadata that not-all
instructions get, or for metadata that only exists when optimizing.
But when compile-time is everything, it isn't great.

I'm not super thrilled with the fact that this plops a TrackingVH in
Instruction, because it grows it by 3 words.  I'm investigating 
alternatives, but this should be a step in the right direction in any
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99957 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 23:03:27 +00:00
Chris Lattner
04e3b1ef78 move some method definitions to files that make sense. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99927 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 20:48:48 +00:00
Devang Patel
f906cb933e Include isFunctionLocal while calculating folding node set profile for a MDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 06:04:47 +00:00
Devang Patel
ea7b6bb323 Include isFunctionLocal while calculating folding node set provide for a MDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99484 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 05:36:13 +00:00
Jeffrey Yasskin
6f555ca2cd Delete MDNodes when LLVMContext is destroyed. Previous attempts: r97918, r97788. 
Tested: clang debug bootstrap, llvm-gcc bootstrap, `make check-lit`
after configuring with --with-llvmgccdir (and this did run the
FrontendC* tests this time)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-13 01:26:15 +00:00
Benjamin Kramer
48ee0bbb72 Remove duplicated code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98156 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 16:04:20 +00:00
Jeffrey Yasskin
6fec233a1e Roll back r97918 again. Just configuring against llvm-gcc wasn't enough to run 
the FrontendC* tests. :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97921 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-07 19:26:40 +00:00
Jeffrey Yasskin
92ce42f9fc Reapply r97788 to free MDNodes when the LLVMContext is destroyed. It 
bootstraps llvm-gcc this time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97918 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-07 18:46:57 +00:00
Jeffrey Yasskin
b71a2fcf5e Revert r97788 because it broke test/FrontendC/2010-02-16-DbgVarScope.c. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97792 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 06:43:49 +00:00
Jeffrey Yasskin
c8cfa30ca5 Free MDNodes when the LLVMContext is destroyed. Leak found by Valgrind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 05:47:09 +00:00
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