This is useful when parsing an object that references multiple attribute groups.
N.B. If both builders have alignments specified, then they should match!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174480 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174456 91177308-0d34-0410-b5e6-96231b3b80d8
Rename the PARAMATTR_CODE_ENTRY to PARAMATTR_CODE_ENTRY_OLD. It will be replaced
by another encoding. Keep around the current LLVM attribute encoder/decoder
code, but move it to the bitcode directories so that no one's tempted to use
them.
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I am going to add in the actual test cases with the actual functionality
changes in a later patch because I want to include some test cases.
To be clear when I say no *TRUE* functionality change I mean that this
patch (like it says in the title) only contains getters/setters and sets
up a default initial value of the instance variable to false so that
this patch does not affect any other uses of Global Variable.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174295 91177308-0d34-0410-b5e6-96231b3b80d8
The main lists of debug info metadata attached to the compile_unit had an extra
layer of metadata nodes they went through for no apparent reason. This patch
removes that (& still passes just as much of the GDB 7.5 test suite). If anyone
can show evidence as to why these extra metadata nodes are there I'm open to
reverting this patch & documenting why they're there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174266 91177308-0d34-0410-b5e6-96231b3b80d8
Use the AttributeSet's iterators in AttrBuilder::hasAttributes() when
determining of the intersection of the AttrBuilder and AttributeSet is non-null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174250 91177308-0d34-0410-b5e6-96231b3b80d8
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).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174110 91177308-0d34-0410-b5e6-96231b3b80d8
Attributes that are strings are typically target-dependent attributes. They are
of this form in the IR:
"attr"
"attr" = "val"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174090 91177308-0d34-0410-b5e6-96231b3b80d8
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().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174026 91177308-0d34-0410-b5e6-96231b3b80d8
--- Reverse-merging r174010 into '.':
U include/llvm/IR/Attributes.h
U lib/IR/Verifier.cpp
U lib/IR/Attributes.cpp
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The AttrBuilder is there to build up multiple attributes. The Attribute class
represents only one attribute at a time. So remove this unnecessary builder
creator method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174010 91177308-0d34-0410-b5e6-96231b3b80d8
Several places were still treating the Attribute object as respresenting
multiple attributes. Those places now use the AttributeSet to represent
multiple attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174003 91177308-0d34-0410-b5e6-96231b3b80d8
for example, a one-past-the-end pointer from one global variable may
be equal to the base pointer of another global variable.
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There are still places which treat the Attribute object as a collection of
attributes. I'm systematically removing them.
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The AttributeSetNode contains all of the attributes. This removes one (hopefully
last) use of the Attribute class as a container of multiple attributes.
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We no longer accept an encoded integer as representing all of the
attributes. Convert this via the AttrBuilder class into an AttributeSet with the
correct representation (an AttributeSetImpl that holds a list of Attribute
objects).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173750 91177308-0d34-0410-b5e6-96231b3b80d8
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.
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This now uses the AttributeSet object instead of the Attribute /
AttributeWithIndex objects. It's fairly simple now. It goes through all of the
subsets before the one we're modifying, adds them to the new set. It then adds
the modified subset (with the requested attributes removed). And then adds the
rest of the subsets.
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This now uses the AttributeSet object instead of the Attribute /
AttributeWithIndex objects. It's fairly simple now. It goes through all of the
subsets before the one we're modifying, adds them to the new set. It then adds
the modified subset. And then adds the rest of the subsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173659 91177308-0d34-0410-b5e6-96231b3b80d8
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.
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The 'getSlot' function and its ilk allow introspection into the AttributeSet
class. However, that class should be opaque. Allow access through accessor
methods instead.
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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.
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SSPStrong applies a heuristic to insert stack protectors in these situations:
* A Protector is required for functions which contain an array, regardless of
type or length.
* A Protector is required for functions which contain a structure/union which
contains an array, regardless of type or length. Note, there is no limit to
the depth of nesting.
* A protector is required when the address of a local variable (i.e., stack
based variable) is exposed. (E.g., such as through a local whose address is
taken as part of the RHS of an assignment or a local whose address is taken as
part of a function argument.)
This patch implements the SSPString attribute to be equivalent to
SSPRequired. This will change in a subsequent patch.
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Collections of attributes are handled via the AttributeSet class now. This
finally frees us up to make significant changes to how attributes are structured.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173228 91177308-0d34-0410-b5e6-96231b3b80d8
Use the AttributeSet when we're talking about more than one attribute. Add a
function that adds a single attribute. No functionality change intended.
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Previously we tried to infer it from the bit width size, with an added
IsIEEE argument for the PPC/IEEE 128-bit case, which had a default
value. This default value allowed bugs to creep in, where it was
inappropriate.
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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.
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We weren't encoding boolean constants correctly due to modeling boolean as a
signed type & then sign extending an i1 up to a byte & getting 255.
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Further encapsulation of the Attribute object. Don't allow direct access to the
Attribute object as an aggregate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172853 91177308-0d34-0410-b5e6-96231b3b80d8
Because the Attribute class is going to stop representing a collection of
attributes, limit the use of it as an aggregate in favor of using AttributeSet.
This replaces some of the uses for querying the function attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172844 91177308-0d34-0410-b5e6-96231b3b80d8
of a class. Emit static data member declarations and definitions
through correctly.
Part of PR14471.
Patch by Paul Robinson!
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