llvm-svn: 203824

llvm-svn: 203823

Passing a pointer to an uninitialized memory buffer is normally okay,
but if the function is declared to take a pointer-to-const then it's
very unlikely it will be modifying the buffer. In this case the analyzer
should warn that there will likely be a read of uninitialized memory.

This doesn't check all elements of an array, only the first one.
It also doesn't yet check Objective-C methods, only C functions and
C++ methods.

This is controlled by a new check: alpha.core.CallAndMessageUnInitRefArg.

Patch by Per Viberg!

llvm-svn: 203822

This replaces several "compile unit ID -> thing" mappings in favor of
one mapping from CUID to the whole line table structure (files,
directories, and lines).

This is another step along the way to refactoring out reusable
components of line table handling for use when generating debug_line.dwo
for fission type units.

Also, might be a good basis to fold some of this handling down into
MCStreamers to avoid the special case of "One line table when doing asm
printing, line table per CU otherwise" by building it into the different
MCStreamer implementations.

llvm-svn: 203821

[C++11] Replacing ObjCImplementationDecl iterators init_begin() and init_end() with iterator_range inits(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203820

[C++11] Replacing CXXRecordDecl iterators init_begin() and init_end() with iterator_range inits(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203819

LDS instructions are pseudo instructions which model
the OQAP defs and uses within a single instruction.

This fixes a hang in the opencv MedianFilter tests.

llvm-svn: 203818

[C++11] Replacing CXXRecordDecl iterators capture_begin() and capture_end() with iterator_range captures(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203817

llvm-svn: 203816

[C++11] Replacing CXXRecordDecl iterators friend_begin() and friend_end() with iterator_range friends(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203815

[C++11] Replacing CXXRecordDecl iterators ctor_begin() and ctor_end() with iterator_range ctors(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203814

When building an AST file, we don't want to output HeaderFileInfo
structures for files that are not actually used as headers in the
current context.  This can lead to assuming that unrelated files have
include counts of 0, defeating multiple-include prevention.

This is accomplished by adding an IsValid bit to the HFI.

llvm-svn: 203813

[C++11] Replacing CXXRecordDecl iterators method_begin() and method_end() with iterator_range methods(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203812

warning: multi-line comment [-Wcomment]
llvm-svn: 203811

This option enables LowerInvoke's obsolete SJLJ EH support, but the
target used in this test (ARM Darwin) no longer uses the LowerInvoke
pass, so the option has no effect here.  This target currently uses
the newer SjLjEHPrepare pass instead.

This cleanup will help with removing "-enable-correct-eh-support".

Differential Revision: http://llvm-reviews.chandlerc.com/D3064

llvm-svn: 203810

This results in some simplifications to the code where an OwningPtr had to
be used with the previous api and then ownership moved to a unique_ptr for
the rest of lld.

llvm-svn: 203809

[C++11] Replacing CXXRecordDecl iterators vbases_begin() and vbases_end() with iterator_range vbases(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203808

My fix for PR15820 in r180132 inadvertently removed the exclusion for ".*".
This puts it back again. Thanks for Nico Weber for pointing this out!

llvm-svn: 203807

This is a follow-up to r203635. Saleem pointed out that since symbolic register
names are much easier to read, it would be good if we could turn them off only
when we really need to because we're using an external assembler.

Differential Revision: http://llvm-reviews.chandlerc.com/D3056

llvm-svn: 203806

llvm-svn: 203805

llvm-svn: 203804

[C++11] Replacing CXXRecordDecl iterators bases_begin() and bases_end() with iterator_range bases(). Updating all of the usages of the iterators with range-based for loops.

llvm-svn: 203803

llvm-svn: 203802

r203272 enables generation of a Qt Compressed Help file for the LLVM source
code.

As a consequence, this change brings the same capabilities to Clang while
reusing these two variables:

  LLVM_ENABLE_DOXYGEN_QT_HELP
  LLVM_DOXYGEN_QHELPGENERATOR_PATH

and adding

  CLANG_DOXYGEN_QCH_FILENAME="org.llvm.clang.qch"
  CLANG_DOXYGEN_QHP_NAMESPACE="org.llvm.clang"
  CLANG_DOXYGEN_QHP_CUST_FILTER_NAME="Clang ${CLANG_VERSION}"
  CLANG_DOXYGEN_QHP_CUST_FILTER_ATTRS="Clang,${CLANG_VERSION}"

Patch by Konrad Kleine.

llvm-svn: 203801

Summary:
This check hints clang analyzer, that FormatTok may be null, and it
reports a null pointer dereference error:
http://buildd-clang.debian.net/scan-build/report-827c64.html#Path28

Reviewers: djasper

Reviewed By: djasper

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D3040

llvm-svn: 203800

Summary:
This adds ObjectFile::section_iterator_range, that allows to write
range-based for-loops running over all sections of a given file.
Several files from lib/ are converted to the new interface. Similar fixes
should be applied to a variety of llvm-* tools.

Reviewers: rafael

Reviewed By: rafael

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3069

llvm-svn: 203799

llvm-svn: 203798

Summary:
This helps the instruction selector to lower an i64 * i64 -> i128
multiplication into a single instruction on targets which support it.

This is an update of D2973 which was reverted because of a bug reported
as PR19084.

Reviewers: t.p.northover, chapuni

Reviewed By: t.p.northover

CC: llvm-commits, alex, chapuni

Differential Revision: http://llvm-reviews.chandlerc.com/D3021

llvm-svn: 203797

[sanitizer] in bitvector-based deadlock detector split onLock into onLockBefore and onLockAfter hooks

llvm-svn: 203796

llvm-svn: 203795

llvm-svn: 203794

llvm-svn: 203793

add_definitions shouldn't really be used for compiler flags, and the variable
LLVM_DEFINITIONS is not appropriately used at the moment, e.g. it's not exported
to LLVMConfig.cmake

llvm-svn: 203792

llvm-gcc had the ability to produce native .o files long before it died.

llvm-svn: 203791

llvm-svn: 203790

llvm-svn: 203789

O(N*log(N)). The idea is to introduce total ordering among functions set.
That allows to build binary tree and perform function look-up procedure in O(log(N)) time. 

This patch description:
Introduced total ordering among Type instances. Actually it is improvement for existing
isEquivalentType.
0. Coerce pointer of 0 address space to integer.
1. If left and right types are equal (the same Type* value), return 0 (means equal).
2. If types are of different kind (different type IDs). Return result of type IDs
comparison, treating them as numbers.
3. If types are vectors or integers, return result of its
pointers comparison (casted to numbers).
4. Check whether type ID belongs to the next group: 
* Void 
* Float 
* Double 
* X86_FP80 
* FP128 
* PPC_FP128 
* Label 
* Metadata 
If so, return 0.
5. If left and right are pointers, return result of address space
comparison (numbers comparison).
6. If types are complex.
Then both LEFT and RIGHT will be expanded and their element types will be checked with
the same way. If we get Res != 0 on some stage, return it. Otherwise return 0.
7. For all other cases put llvm_unreachable.

llvm-svn: 203788

I missed this one in my earlier commit a few days ago.

llvm-svn: 203787

llvm-svn: 203786

Similar functionality already exist on the cmake side.

llvm-svn: 203785