Tweak -Wuninitialized's handling of 'int x = x' to report that as the root cause of an uninitialized variable IFF there are other uses of that uninitialized variable.  Fixes <rdar://problem/9259237>.

llvm-svn: 141881

Self-review easily caught this obvious bug.

llvm-svn: 141880

llvm-svn: 141879

llvm-svn: 141878

functions, e.g., (&f)(0). Fixes <rdar://problem/9803316>.

llvm-svn: 141877

llvm-svn: 141876

Many distros provide stdc++.dll recently. --enable-embed-stdcxx might confuse people.

llvm-svn: 141875

llvm-svn: 141874

llvm-svn: 141873

llvm-svn: 141872

llvm-svn: 141871

This avoids unnecessary expansion of expressions and allows the SCEV
expander to work on expression DAGs, not just trees.
Fixes PR11090.

llvm-svn: 141870

llvm-svn: 141869

just expression trees.

Partially fixes PR11090. Test case will be with the full fix.

llvm-svn: 141868

llvm-svn: 141867

llvm-svn: 141866

Patch by Pekka Jääskeläinen!

llvm-svn: 141865

llvm-svn: 141863

Not having it confused assembly printing of jumptables.

llvm-svn: 141862

attributes are found, propagate them to subsequent declarations.

llvm-svn: 141861

release the stack segment and reset the stack pointer. Place the code in its own
MBB to make the verifier happy.

llvm-svn: 141859

http://lab.llvm.org:8011/builders/llvm-x86_64-linux/builds/101

--- Reverse-merging r141854 into '.':
U    test/MC/Disassembler/X86/x86-32.txt
U    test/MC/Disassembler/X86/simple-tests.txt
D    test/CodeGen/X86/bmi.ll
U    lib/Target/X86/X86InstrInfo.td
U    lib/Target/X86/X86ISelLowering.cpp
U    lib/Target/X86/X86.td
U    lib/Target/X86/X86Subtarget.h

llvm-svn: 141857

Should not add instructions to a BB after a return instruction. The machine instruction verifier doesn't like this, nor do I.

llvm-svn: 141856

llvm-svn: 141855

Add X86 TZCNT instruction and patterns to select it. Also added core-avx2 processor which is gcc's name for Haswell.

llvm-svn: 141854

llvm-svn: 141853

Fix crash-on-invalid, improve error recovery, and test coverage for missing colon after access specifiers in C++

llvm-svn: 141852

llvm-svn: 141851

have the same address as the one we deleted, and we don't want that in the set
yet. Noticed by inspection.

llvm-svn: 141849

down through Module and SymbolVendor into SymbolFile.
Added checks to SymbolFileDWARF that restrict symbol
searches when a namespace is passed in.

llvm-svn: 141847

llvm-svn: 141846

be in namespaces.

llvm-svn: 141845

llvm-svn: 141844

and a "DWARFCompileUnit *" to avoid doing a DIE lookup twice and to prepare
for using namespaces in the lookups.

llvm-svn: 141843

llvm-svn: 141842

llvm-svn: 141840

we don't need to look them up again when materializing.

Switched over the materialization mechanism (for JIT
expressions) and the lookup mechanism (for interpreted
expressions) to use the VariableSP/Symbol that were
found during parsing.

llvm-svn: 141839

file. This will help us to minimize lookups that can't possibly match anything
in the current symbol file.

llvm-svn: 141838

llvm-svn: 141837

Now that MI->getRegClassConstraint() can also handle inline assembly,
don't bail when recomputing the register class of a virtual register
used by inline asm.

This fixes PR11078.

llvm-svn: 141836