PR10998: It is not legal to sink an instruction past the terminator of a block; make sure we don't do that.

llvm-svn: 140428

The token stream was not getting properly reset when leaving
ParseLexedMethodDef in some error cases. In the testcase, that caused later
accesses to the token stream to touch memory which had been freed as we
finished parsing the class definition. Major hat-tip to AddressSanitizer for
helping pinpoint the use-after-free, including the allocation and deallocation
points:

==21510== ERROR: AddressSanitizer heap-use-after-free on address 0x7feb3de87848 at pc 0x249f4e2 bp 0x7fff15a89df0 sp 0x7fff15a89ce0
READ of size 1 at 0x7feb3de87848 thread T0
  #0 0x249f4e2 clang::TokenLexer::Lex()
  #1 0x1c834a0 clang::Parser::ConsumeToken()
  #2 0x1c7dc0f clang::Parser::ParseDeclarationOrFunctionDefinition()
  #3 0x1c7e16b clang::Parser::ParseDeclarationOrFunctionDefinition()
<snip>
0x7feb3de87848 is located 1992 bytes inside of 3816-byte region [0x7feb3de87080,0x7feb3de87f68)
freed by thread T0 here:
  #0 0x3a22c19 free
  #1 0x1d136a1 clang::Parser::LexedMethod::~LexedMethod()
  #2 0x1cef528 clang::Parser::DeallocateParsedClasses()
  #3 0x1cef676 clang::Parser::PopParsingClass()
  #4 0x1cea094 clang::Parser::ParseCXXMemberSpecification()
  #5 0x1ce7ae5 clang::Parser::ParseClassSpecifier()
  #6 0x1cfe588 clang::Parser::ParseDeclarationSpecifiers()
  #7 0x1c7dbe8 clang::Parser::ParseDeclarationOrFunctionDefinition()
  #8 0x1c7e16b clang::Parser::ParseDeclarationOrFunctionDefinition()
<snip>
previously allocated by thread T0 here:
  #0 0x3a2302d realloc
  #1 0x39d7c97 llvm::SmallVectorBase::grow_pod()
  #2 0x1ac588e llvm::SmallVectorImpl<>::push_back()
  #3 0x1d12d8b clang::Parser::ConsumeAndStoreUntil()
  #4 0x1c9c24d clang::Parser::ConsumeAndStoreUntil()
  #5 0x1d12c1e clang::Parser::ConsumeAndStoreUntil()
  #6 0x1c9c24d clang::Parser::ConsumeAndStoreUntil()
  #7 0x1d10042 clang::Parser::ParseCXXInlineMethodDef()
  #8 0x1cec51a clang::Parser::ParseCXXClassMemberDeclaration()
  #9 0x1ce9de5 clang::Parser::ParseCXXMemberSpecification()
  #10 0x1ce7ae5 clang::Parser::ParseClassSpecifier()
  #11 0x1cfe588 clang::Parser::ParseDeclarationSpecifiers()
  #12 0x1c7dbe8 clang::Parser::ParseDeclarationOrFunctionDefinition()
  #13 0x1c7e16b clang::Parser::ParseDeclarationOrFunctionDefinition()
<snip>

llvm-svn: 140427

llvm-svn: 140426

Math is hard, and isScaledConstantInRange() always returned false for
negative constants.  It was doing unsigned division of negative numbers
before casting back to signed.

llvm-svn: 140425

llvm-svn: 140424

llvm-svn: 140423

llvm-svn: 140422

It should not crash lldb.

llvm-svn: 140421

Post-index loads/stores in still need to print the post-indexed immediate, even if it's zero, to distinguish them from non-post-indexed instructions.

llvm-svn: 140420

too long, so that the jump from the line above the bad line to the line after
ends up in the middle of the bad line instead.  Added a workaround to lldb to just
continue to the end if we find ourselves stopped in the middle of some other line.

llvm-svn: 140419

Add a (bool)end_to_end parameter, default true, to the Target::Remove/Disable/EnableALLWatchpointLocations()
methods.  If passed as false, it signifies that only the debugger side is affected.

Modify Target::DeleteCurrentProcess() to use DisableAllWatchpointLocations(false) to
disable the watchpoint locations, instead of removing them between process instances.

llvm-svn: 140418

return before we try to dereference the target later in the function.
Currently,

% lldb -x
(lldb) target stop-hook list

crashes because of this.

llvm-svn: 140417

If stepping takes us from the line range we were stepping through into the MIDDLE of another line, then continue till we get to the real beginning of a line.  This is mostly to work around debug information bugs.

llvm-svn: 140416

llvm-svn: 140415

Also, on windows, chdir seems to live in <direct.h>.

llvm-svn: 140414

llvm-svn: 140413

llvm-svn: 140412

llvm-svn: 140411

llvm-svn: 140410

to operate "as if" in a certain working directory.
 - For now, we just implement this by changing the actual working directory, but
   eventually we would want to handle this transparently. This is useful to
   avoid an extra exec() pair in some situations, and will be something we would
   want to support for more flexibility in using the Clang libraries.

llvm-svn: 140409

llvm-svn: 140408

llvm-svn: 140407

merging for overrides. One might want to make a method's availability
in a superclass different from that of its subclass. Fixes
<rdar://problem/10166223>.

llvm-svn: 140406

is cast to a boolean.  An exception has been made for string literals in
logical expressions to allow the common case of use in assert statements.

bool x;
x = "hi";  // Warn here
void foo(bool x);
foo("hi");  // Warn here
assert(0 && "error");
assert("error);  // Warn here

llvm-svn: 140405

MatchRHSPunctuation appropriately and giving a useful source location
for the complaint about attributes being added to a category.

llvm-svn: 140404

Move immutable map canonization out of the removeDeadBindings loop (via using ImmutableMapRef). Gives ~2% speedup.

llvm-svn: 140403

Add getTreeFactory() to ImmutableSet to allow construction of ImmutableSetRef from an ImmutableSet object.

llvm-svn: 140402

llvm-svn: 140401

the key function is inline, rather than the original
declaration. Perhaps FunctionDecl::isInlined() is poorly named. Fixes
<rdar://problem/9979458>. 

llvm-svn: 140400

write barrier with captured pointer to object. // rdar://10150823

llvm-svn: 140399

llvm-svn: 140398

llvm-svn: 140397

llvm-svn: 140396

callee-saved registers and reserved registers.

llvm-svn: 140395

llvm-svn: 140394

llvm-svn: 140393

Update the test case to fix test suite failure.

llvm-svn: 140392

patch contributed by Jia Liu!

llvm-svn: 140391

llvm-svn: 140390

llvm-svn: 140389