Commit Graph

61 Commits

Author SHA1 Message Date
Benjamin Kramer a7c40ef022 Canonicalize header guards into a common format.
Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)

Changes made by clang-tidy with minor tweaks.

llvm-svn: 215558
2014-08-13 16:26:38 +00:00
Hal Finkel b0407ba071 Add a dereferenceable attribute
This attribute indicates that the parameter or return pointer is
dereferenceable. Practically speaking, loads from such a pointer within the
associated byte range are safe to speculatively execute. Such pointer
parameters are common in source languages (C++ references, for example).

llvm-svn: 213385
2014-07-18 15:51:28 +00:00
Hal Finkel e15442c8aa Rename AlignAttribute to IntAttribute
Currently the only kind of integer IR attributes that we have are alignment
attributes, and so the attribute kind that takes an integer parameter is called
AlignAttr, but that will change (we'll soon be adding a dereferenceable
attribute that also takes an integer value). Accordingly, rename AlignAttribute
to IntAttribute (class names, enums, etc.).

No functionality change intended.

llvm-svn: 213352
2014-07-18 06:51:55 +00:00
Craig Topper f398d7c6bf [C++11] Add 'override' keyword to IR library.
llvm-svn: 202939
2014-03-05 06:35:38 +00:00
Juergen Ributzka d12ccbd343 [weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 195064
2013-11-19 00:57:56 +00:00
Alexey Samsonov 49109a279c Revert r194865 and r194874.
This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
  Base *foo = new Child();
  delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

llvm-svn: 194997
2013-11-18 09:31:53 +00:00
Juergen Ributzka dbedae89b9 [weak vtables] Remove a bunch of weak vtables
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

llvm-svn: 194865
2013-11-15 22:34:48 +00:00
Benjamin Kramer 079b96e6f7 Revert "Give internal classes hidden visibility."
It works with clang, but GCC has different rules so we can't make all of those
hidden. This reverts commit r190534.

llvm-svn: 190536
2013-09-11 18:05:11 +00:00
Benjamin Kramer 6a44af3629 Give internal classes hidden visibility.
Worth 100k on a linux/x86_64 Release+Asserts clang.

llvm-svn: 190534
2013-09-11 17:42:27 +00:00
Peter Collingbourne abca2ecaab Add a AttributeSetImpl::dump function.
This is for the benefit of those of us with inferior debuggers which
do not permit member function calls on value types.

llvm-svn: 187685
2013-08-02 22:34:30 +00:00
Peter Collingbourne bd6c7459bb Make one of the AttributeSet ctors maintain the invariant that the
attribute list is ordered by index.

Differential Revision: http://llvm-reviews.chandlerc.com/D1265

llvm-svn: 187682
2013-08-02 22:29:40 +00:00
Benjamin Kramer 741146b825 Reduce the number of indirections in the attributes implementation.
- Coallocate entires for AttributeSetImpls and Nodes after the class itself.
- Remove mutable iterators from immutable classes.
- Remove unused context field from AttributeImpl.
- Derive Enum/Align/String attribute implementations from AttributeImpl instead
  of having a whole new inheritance tree for them.
- Derive AlignAttributeImpl from EnumAttributeImpl.

llvm-svn: 186075
2013-07-11 12:13:16 +00:00
Rafael Espindola cbf5a7ad06 Now that the underlying issue is fixed, revert r180750 and r180722.
The cause of the windows failures was fixed by r180791. Revert to the state
after Sabre's original revert.

Original message:

revert r179735, it has no testcases, and doesn't really make sense.

llvm-svn: 180844
2013-05-01 13:07:03 +00:00
Rafael Espindola dd27530a44 Change getSlotIndex to return unsigned.
The actual storage was already using unsigned, but the interface was using
uint64_t. This is wasteful on 32 bits and looks to be the root causes of
a miscompilation on Windows where a value was being sign extended to 64bits
to compare with the result of getSlotIndex.

Patch by Pasi Parviainen!

llvm-svn: 180791
2013-04-30 16:53:38 +00:00
Reid Kleckner e02c622baa Revert "revert r179735, it has no testcases, and doesn't really make sense."
This un-reverts r179735 and reverts commit r180574.

This fixes assertion failures for me locally and should fix the failures
on Windows reported widely on llvm-dev.  We should check if the bots
caught this and if so why not.

llvm-svn: 180722
2013-04-29 18:23:53 +00:00
Chris Lattner 6b2702a6cc revert r179735, it has no testcases, and doesn't really make sense.
llvm-svn: 180574
2013-04-25 20:34:16 +00:00
Bill Wendling 211316cc54 Cleanup patch:
Semantics of parameters named Index and Idx were inconsistent between
"include/llvm/IR/Attributes.h", "lib/IR/AttributeImpl.h" and
"lib/IR/Attributes.cpp": sometimes these were fixed 1-based indexes of IR
parameters (or AttributeSet::ReturnIndex for IR return values or
AttributeSet::FunctionIndex for IR functions), other times they were the
internal slot for storage in the underlying AttributeSetImpl. I renamed usage of
the former to "Index" and usage of the latter to "Slot" ("Slot" was already
being used consistently for the latter in a subset of cases)

Patch by Stephen Lin!

llvm-svn: 179791
2013-04-18 20:17:28 +00:00
Bill Wendling 877cf534ab Add an option `-enable-old-style-attr-syntax' to print out function attributes in the "old" style.
It's sometimes beneficial to emit a testcase with the old style attribute
syntax. Allow someone to do this.
<rdar://problem/13563209>

llvm-svn: 179735
2013-04-17 23:35:59 +00:00
Bill Wendling 8a0e0841f3 Don't add the 'Value' string if there isn't one.
This was causing the folding set to fail to fold attributes, because it was
being calculated in one spot without an empty values string but here with an
empty values string.

llvm-svn: 176301
2013-02-28 21:17:03 +00:00
Bill Wendling bce7b97c80 Add some accessor and query methods for retrieving Attribute objects and such.
llvm-svn: 175046
2013-02-13 08:42:21 +00:00
Bill Wendling 829b478980 Add support for printing out the attribute groups.
This emits the attribute groups that are used by the functions. (It currently
doesn't print out return type or parameter attributes within attribute groups.)

Note: The functions still retrieve their attributes from the "old" bitcode
format (using the deprecated 'Raw()' method). This means that string attributes
within an attribute group will not show up during a disassembly. This will be
addressed in a future commit.

llvm-svn: 174867
2013-02-11 08:43:33 +00:00
Craig Topper 3931a4422a Remove unused private field to suppress a build warning.
llvm-svn: 174491
2013-02-06 06:48:10 +00:00
Bill Wendling 3f12ac2138 Convert to storing the attribute's internals as enums, integers, and strings.
The stuff we're handing are all enums (Attribute::AttrKind), integers and
strings. Don't convert them to Constants, which is an unnecessary step here. The
rest of the changes are mostly mechanical.

llvm-svn: 174456
2013-02-05 22:37:24 +00:00
Bill Wendling 9ca01da53d Use the AttributeSet's iterators.
Use the AttributeSet's iterators in AttrBuilder::hasAttributes() when
determining of the intersection of the AttrBuilder and AttributeSet is non-null.

llvm-svn: 174250
2013-02-02 00:42:06 +00:00
Bill Wendling 7a33f779b9 Change the AttributeImpl to hold a single Constant* for the values.
This Constant could be an aggregate to represent multiple values.

llvm-svn: 174228
2013-02-01 22:32:30 +00:00
Bill Wendling c79cdff195 Remove some dead code, improve some asserts, and other assorted changes. No functionality change.
llvm-svn: 174132
2013-02-01 01:04:27 +00:00
Bill Wendling 3f9fcd48a4 Remove one of the odious 'Raw' methods.
llvm-svn: 174130
2013-02-01 00:48:14 +00:00
Bill Wendling 1c7cc8ae90 Remove the AttrBuilder form of the Attribute::get creators.
The AttrBuilder is for building a collection of attributes. The Attribute object
holds only one attribute. So it's not really useful for the Attribute object to
have a creator which takes an AttrBuilder.

This has two fallouts:

1. The AttrBuilder no longer holds its internal attributes in a bit-mask form.
2. The attributes are now ordered alphabetically (hence why the tests have changed).

llvm-svn: 174110
2013-01-31 23:16:25 +00:00
Bill Wendling 9c2eba95d2 Add support for emitting a string attribute.
Attributes that are strings are typically target-dependent attributes. They are
of this form in the IR:

   "attr"
   "attr" = "val"

llvm-svn: 174090
2013-01-31 20:59:05 +00:00
Bill Wendling d471863c1e Remove the Attribute::hasAttributes() function.
That function doesn't make sense anymore because there's only one attribute per
Attribute object now.

llvm-svn: 174044
2013-01-31 06:22:35 +00:00
NAKAMURA Takumi b0944392aa Revert r174026, "Remove Attribute::hasAttributes() and make Attribute::hasAttribute() private."
It broke many hosts to crash.

llvm-svn: 174035
2013-01-31 03:47:28 +00:00
Bill Wendling 3b4a02bf84 Remove Attribute::hasAttributes() and make Attribute::hasAttribute() private.
The Attribute::hasAttributes() is kind of meaningless since an Attribute can
have only one attribute. And we would rather people use the 'operator=='
instead of Attribute::hasAttribute().

llvm-svn: 174026
2013-01-31 02:18:19 +00:00
Bill Wendling c3c714ba7e s/Data/Kind/g. No functionality change.
llvm-svn: 173827
2013-01-29 20:37:10 +00:00
Bill Wendling f2955aa3f2 Convert getAttributes() to return an AttributeSetNode.
The AttributeSetNode contains all of the attributes. This removes one (hopefully
last) use of the Attribute class as a container of multiple attributes.

llvm-svn: 173761
2013-01-29 03:20:31 +00:00
Bill Wendling d509a6653a Reorder some functions and add comments. No functionality change.
llvm-svn: 173733
2013-01-29 00:34:06 +00:00
Bill Wendling eeebb13fb2 Try to appease some broken compilers by using 'unsigned' instead of 'uint64_t'.
llvm-svn: 173725
2013-01-28 22:33:39 +00:00
Bill Wendling ec454546ec Remove the AttributeWithIndex class.
The AttributeWithIndex class exposed the interior structure of the AttributeSet
class. That was gross. Remove it and all of the code that relied upon it.

llvm-svn: 173722
2013-01-28 21:55:20 +00:00
Bill Wendling 9eb689cf1c Remove a use of AttributeWithIndex.
We want to remove AttributeWithIndex because it provides a non-encapsulated view
of the AttributeSetImpl object. Instead, use accessor methods and iterators.

Eventually, this code can be simplified because the Attribute object will hold
only one attribute instead of multiple attributes.

llvm-svn: 173641
2013-01-28 00:21:34 +00:00
Bill Wendling dbbe7fe865 Use proper return type for attribute index.
llvm-svn: 173638
2013-01-27 23:49:44 +00:00
Bill Wendling 1f786a7371 Push the calculation of the 'Raw' attribute mask down into the implementation. It in turn uses the correct list for calculating the 'Raw' value.
llvm-svn: 173637
2013-01-27 23:41:29 +00:00
Bill Wendling 97b4f70b2e Privitize some the copy c'tor and assignment operator of uniquified objects.
llvm-svn: 173632
2013-01-27 21:38:03 +00:00
Bill Wendling 5c8b2dff4d Add some helpful comments.
llvm-svn: 173631
2013-01-27 21:32:11 +00:00
Bill Wendling 72223f2959 Start using more of the AttrNode in the AttributeSetImpl class.
Also add some asserts.

llvm-svn: 173627
2013-01-27 21:20:06 +00:00
Bill Wendling 152289ce16 In the AttributeSetImpl c'tor, fill in the AttrNodes data structure with the attributes being passed in.
llvm-svn: 173618
2013-01-27 12:50:02 +00:00
Bill Wendling 57625a4966 Remove some introspection functions.
The 'getSlot' function and its ilk allow introspection into the AttributeSet
class. However, that class should be opaque. Allow access through accessor
methods instead.

llvm-svn: 173522
2013-01-25 23:09:36 +00:00
Bill Wendling 25e65a61cc Add an accessor method to get the slot's index. This will limit the use of AttributeWithIndex.
llvm-svn: 173495
2013-01-25 21:30:53 +00:00
Bill Wendling 39a4c80570 Add a profile for uniquifying the AttributeSet with the AttributeSetNodes.
llvm-svn: 173313
2013-01-24 01:01:34 +00:00
Bill Wendling d2e493bb65 Create a new class: AttributeSetNode.
This is a helper class for the AttributeSetImpl class. It holds a set of
attributes that apply to a single element: function, return type, or
parameter.

These are uniqued.

llvm-svn: 173310
2013-01-24 00:06:56 +00:00
Bill Wendling 9de4b973f1 Remove dead methods.
llvm-svn: 173302
2013-01-23 22:38:33 +00:00
Bill Wendling bd4ea16bf3 Make AttributeSet::getFnAttributes() return an AttributeSet instead of an Attribute.
This is more code to isolate the use of the Attribute class to that of just
holding one attribute instead of a collection of attributes.

llvm-svn: 173094
2013-01-21 21:57:28 +00:00