Fix an off-by-one error by switching < to <= in -Wtautological-constant-out-of-range-compare and added test case.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168023 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r167567, restoring the ability of clang to run gcc in cases where it
can't handle the input file type. This resulted in PR14338.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168024 91177308-0d34-0410-b5e6-96231b3b80d8
Make -ffp-contract a codegen option, rather than a laguage option. This makes
more sense anyway - it determines how expressions are codegen'd. It also ensures
that -ffp-contract=fast has the intended effect when compiling LLVM IR.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168027 91177308-0d34-0410-b5e6-96231b3b80d8
Teach the uninitialized field warning about anonymous structs and union members.
Fixes PR14073!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168031 91177308-0d34-0410-b5e6-96231b3b80d8
[UBSan] Add support for building ubsan runtime library on Linux with 'make'. Clang part.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168039 91177308-0d34-0410-b5e6-96231b3b80d8
Use empty parens for empty function parameter list instead of '(void)'.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168041 91177308-0d34-0410-b5e6-96231b3b80d8
Do not cache a pointer to ExprEvalContexts.back().

It may become a dangling pointer if the underlying SmallVector reallocates.
Sadly the testcase is really large and doesn't reduce well because of
SmallVector's reallocation patterns.

Fixes PR14336.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168045 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify code. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168047 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused diagnostics from TableGen files.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168055 91177308-0d34-0410-b5e6-96231b3b80d8
Comment to XML conversion: convert some tests to use the new [[@LINE]]
FileCheck feature.  This will hopefully make tests less fragile.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168056 91177308-0d34-0410-b5e6-96231b3b80d8
[modules] Setup the import location of a module file and use it
as the include location of the main file of an imported module.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168061 91177308-0d34-0410-b5e6-96231b3b80d8
[modules] Use a memory buffer directly as input for the module includes,
instead of messing with virtual files.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168062 91177308-0d34-0410-b5e6-96231b3b80d8
x
block extended signatur option. Change previous option
to a cc1 -fencode-extended-block-signature and pass it
to cc1 and recognize this option to produce extended block
type signature. // rdar://12109031 


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168063 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Mark symbol values as dead in the environment.

This allows us to properly remove dead bindings at the end of the top-level
stack frame, using the ReturnStmt, if there is one, to keep the return value
live. This in turn removes the need for a check::EndPath callback in leak
checkers.

This does cause some changes in the path notes for leak checkers. Previously,
a leak would be reported at the location of the closing brace in a function.
Now, it gets reported at the last statement. This matches the way leaks are
currently reported for inlined functions, but is less than ideal for both.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168066 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] MallocChecker: Remove now-unnecessary check::EndPath callback.

Also, don't bother to stop tracking symbols in the return value, either.
They are now properly considered live during checkDeadSymbols.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168067 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] MacOSKeychainAPIChecker: Remove now-unnecessary check::EndPath.

Also, don't bother to stop tracking symbols in the return value, either.
They are now properly considered live during checkDeadSymbols.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168068 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] StreamChecker: Remove now-unnecessary check::EndPath callback.

Also, don't bother to stop tracking symbols in the return value, either.
They are now properly considered live during checkDeadSymbols.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168069 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Report leaks at the closing brace of a function body.

This fixes a few cases where we'd emit path notes like this:

  +---+
 1|   v
  p = malloc(len);
  ^   |2
  +---+

In general this should make path notes more consistent and more correct,
especially in cases where the leak happens on the false branch of an if
that jumps directly to the end of the function. There are a couple places
where the leak is reported farther away from the cause; these are usually
cases where there are several levels of nested braces before the end of
the function. This still matches our current behavior for when there /is/
a statement after all the braces, though.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168070 91177308-0d34-0410-b5e6-96231b3b80d8
If an excluded header does not exist, just ignore it

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168077 91177308-0d34-0410-b5e6-96231b3b80d8