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Commit Graph

132 Commits

Author SHA1 Message Date
Andrea Di Biagio
b486212f5a Add function attribute 'optnone'.
This function attribute indicates that the function is not optimized
by any optimization or code generator passes with the 
exception of interprocedural optimization passes.

llvm-svn: 189101
2013-08-23 11:53:55 +00:00
Peter Collingbourne
351d17e1e9 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
6ee348574a 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
Bill Wendling
6420062d1b Add a way to add a kind-value string pair to an attribute.
llvm-svn: 187138
2013-07-25 18:34:24 +00:00
Bill Wendling
a61c3eb016 Replace the "NoFramePointerElimNonLeaf" target option with a function attribute.
There's no need to specify a flag to omit frame pointer elimination on non-leaf
nodes...(Honestly, I can't parse that option out.) Use the function attribute
stuff instead.

llvm-svn: 187093
2013-07-25 00:34:29 +00:00
Benjamin Kramer
e161438f33 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
Nick Lewycky
7b093a1c2f Extend 'readonly' and 'readnone' to work on function arguments as well as
functions. Make the function attributes pass add it to known library functions
and when it can deduce it.

llvm-svn: 185735
2013-07-06 00:29:58 +00:00
Michael Gottesman
fe055b3806 Added support for the Builtin attribute.
The Builtin attribute is an attribute that can be placed on function call site that signal that even though a function is declared as being a builtin,

rdar://problem/13727199

llvm-svn: 185049
2013-06-27 00:25:01 +00:00
Diego Novillo
d1f091f169 Add a new function attribute 'cold' to functions.
Other than recognizing the attribute, the patch does little else.
It changes the branch probability analyzer so that edges into
blocks postdominated by a cold function are given low weight.

Added analysis and code generation tests.  Added documentation for the
new attribute.

llvm-svn: 182638
2013-05-24 12:26:52 +00:00
Rafael Espindola
0a4792bcbe 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
b2fd483e24 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
Bill Wendling
4bc92c258f Revert the command line option patch. However, keep the part that makes this pass on Windows. I.e., we don't emit the target dependent attributes in a comment before the function.
llvm-svn: 180750
2013-04-29 23:48:06 +00:00
Reid Kleckner
3bf655a0d0 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
49248bb367 revert r179735, it has no testcases, and doesn't really make sense.
llvm-svn: 180574
2013-04-25 20:34:16 +00:00
Stephen Lin
9d99ba2071 Add CodeGen support for functions that always return arguments via a new parameter attribute 'returned', which is taken advantage of in target-independent tail call opportunity detection and in ARM call lowering (when placed on an integral first parameter).
llvm-svn: 179925
2013-04-20 05:14:40 +00:00
Benjamin Kramer
ff677123a0 Attributes: Don't print trailing whitespace on the function attribute comment.
llvm-svn: 179849
2013-04-19 11:43:21 +00:00
Bill Wendling
4f17a0e079 Make the TargetIndependent flag have the right boolean value.
llvm-svn: 179798
2013-04-18 21:45:04 +00:00
Bill Wendling
2bc73801cb 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
480edeaf79 This patch addresses two cleanup issues:
1. Verify::VerifyParameterAttrs in "lib/IR/Verifier.cpp" and
   AttrBuilder::removeFunctionOnlyAttrs in "lib/IR/Attributes.cpp" (only called
   by Verify::VerifyFunctionAttrs) separately maintained a list of function-only
   attribute types. I've consolidated the logic into a new function used for
   both cases in "lib/IR/Verifier.cpp", so this logic is in one place (other
   than the AsmParser front-end)

2. Various functions in "lib/IR/Verifier.cpp" passed AttributeSet around by
   reference needlessly, as it's just a handle to an immutable pimpl body.

Patch by Stephen Lin!

llvm-svn: 179790
2013-04-18 20:15:25 +00:00
Bill Wendling
503365830b 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
Reed Kotler
6f984e6349 Add some additonal attribute helper functions. Test will be on follow
up putback to clang for mips16.

llvm-svn: 176968
2013-03-13 20:20:08 +00:00
Bill Wendling
f8dd7555be Don't add an attribute that already exists and don't remove an attribute that doesn't exist.
llvm-svn: 176289
2013-02-28 19:17:40 +00:00
Kostya Serebryany
f560b78692 Unify clang/llvm attributes for asan/tsan/msan (LLVM part)
These are two related changes (one in llvm, one in clang).
LLVM: 
- rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode)
- rename thread_safety => sanitize_thread
- rename no_uninitialized_checks -> sanitize_memory

CLANG: 
- add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis))
- add __attribute__((no_sanitize_thread))
- add __attribute__((no_sanitize_memory))

for S in address thread memory
If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not
set llvm attribute sanitize_S

llvm-svn: 176075
2013-02-26 06:58:09 +00:00
Bill Wendling
1c47920d57 Remove warning about default covering no cases.
llvm-svn: 175846
2013-02-22 00:50:09 +00:00
Bill Wendling
2f6959fb95 Add a bitmask for NoBuiltin. This should *not* be used.
llvm-svn: 175843
2013-02-22 00:40:12 +00:00
Bill Wendling
eecb534c87 Implement the NoBuiltin attribute.
The 'nobuiltin' attribute is applied to call sites to indicate that LLVM should
not treat the callee function as a built-in function. I.e., it shouldn't try to
replace that function with different code.

llvm-svn: 175835
2013-02-22 00:12:35 +00:00
Benjamin Kramer
3137f73f0e Futureproof AttrBuild if we ever have more than 64 attr enum values.
Currently we're at 34. Bitset should compile into virtually the same code as
uint64_t here.

llvm-svn: 175437
2013-02-18 12:09:51 +00:00
Benjamin Kramer
920e1f81a3 GCC doesn't like ++ on enums.
llvm-svn: 175373
2013-02-16 19:22:28 +00:00
Benjamin Kramer
493e1a2895 Turn the enum attributes DenseSet in AttrBuilder into a set of bits.
Avoids malloc and is a lot denser. We lose iteration over target independent
attributes, but that's a strange interface anyways and didn't have any users
outside of AttrBuilder.

llvm-svn: 175370
2013-02-16 19:13:18 +00:00
Bill Wendling
12753ce9bc Simplify the 'operator<' for the attribute object.
llvm-svn: 175252
2013-02-15 05:25:26 +00:00
Anna Zaks
ebd25dd190 Revert "Simplify the attributes '<' comparison function."
This reverts commit 82c101153fe7b35bce48781fab038e1b8f31a7bd.

llvm-svn: 175250
2013-02-15 04:15:55 +00:00
Bill Wendling
67e51ec173 Simplify the attributes '<' comparison function.
llvm-svn: 175235
2013-02-15 00:55:08 +00:00
Bill Wendling
8d3d898234 Use array_pod_sort.
llvm-svn: 175048
2013-02-13 09:26:26 +00:00
Bill Wendling
45be8c5d89 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
03550a5d33 Support string attributes in the AttrBuilder.
llvm-svn: 174948
2013-02-12 07:56:49 +00:00
Bill Wendling
f45666e4e9 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
Kostya Serebryany
8e2f1fbfb7 [tsan/msan] adding thread_safety and uninitialized_checks attributes
llvm-svn: 174864
2013-02-11 08:13:54 +00:00
Bill Wendling
9d49d49b2a The 'Raw' method cannot handle 'string' attributes. Don't even try.
llvm-svn: 174848
2013-02-10 23:18:05 +00:00
Bill Wendling
3eaebd7f41 Handle string attributes in the AttrBuilder.
llvm-svn: 174834
2013-02-10 10:13:23 +00:00
Bill Wendling
eb7e06de6d Add accessor for the LLVMContext.
llvm-svn: 174824
2013-02-10 05:00:40 +00:00
Bill Wendling
f45bd45085 Add a 'StringRef' version of hasAttribute.
Fix the 'operator==' and 'hasAttributes' queries to take into account
target-dependent attributes.

llvm-svn: 174481
2013-02-06 01:33:42 +00:00
Bill Wendling
555fe288d9 Add methods to merge an AttrBuilder into another builder.
This is useful when parsing an object that references multiple attribute groups.

N.B. If both builders have alignments specified, then they should match!

llvm-svn: 174480
2013-02-06 01:16:00 +00:00
Bill Wendling
dffa0dbdc3 Add the target-dependent (string) attributes from the AttrBuilder to the AttributeSet.
llvm-svn: 174467
2013-02-05 23:48:36 +00:00
Bill Wendling
baf40a92db 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
5bcf9a9307 Add target-dependent versions of addAttribute/removeAttribute to AttrBuilder.
llvm-svn: 174356
2013-02-05 08:09:32 +00:00
Bill Wendling
401162ecf9 Initial cleanups of the param-attribute code in the bitcode reader/writer.
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.

llvm-svn: 174335
2013-02-04 23:32:23 +00:00
Bill Wendling
16d277acec Remove AttrBuilder::Raw().
llvm-svn: 174251
2013-02-02 00:52:44 +00:00
Bill Wendling
7a69360bb2 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
867f5df67b 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
5c32451ec5 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