Add -mqpx and -mno-qpx feature flags to toggle use of the PPC QPX vector instruction set

I've renamed the altivec test to ppc-features (because now there is more than one feature to test).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174204 91177308-0d34-0410-b5e6-96231b3b80d8
Fix exception handling line table problems introduced by r173593

r173593 made us a little too eager to associate all code at the end of a
function with the user-written 'return' line. This caused problems with
breakpoints as they'd be set in exception handling code preceeding the
actual non-exception return handling code, leading to the breakpoint never
being hit in non-exceptional execution.

This change restores the pre-r173593 exception handling line information where
the cleanup code is associated with the '}' not the return line.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174206 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Reuse a LazyCompoundVal if its type matches the new region.

This allows us to keep from chaining LazyCompoundVals in cases like this:
  CGRect r = CGRectMake(0, 0, 640, 480);
  CGRect r2 = r;
  CGRect r3 = r2;

Previously we only made this optimization if the struct did not begin with
an aggregate member, to make sure that we weren't picking up an LCV for
the first field of the struct. But since LazyCompoundVals are typed, we can
make that inference directly by comparing types.

This is a pure optimization; the test changes are to guard against possible
future regressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174211 91177308-0d34-0410-b5e6-96231b3b80d8
Re-apply "[analyzer] Model trivial copy/move ctors with an aggregate bind."

With the optimization in the previous commit, this should be safe again.

Originally applied in r173951, then reverted in r174069.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174212 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Explain why we have system-header-simulator*.h files.

Suggested by Csaba. Text based on an e-mail of mine on cfe-dev.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174213 91177308-0d34-0410-b5e6-96231b3b80d8
objc: Provide correct fixit instruction when two mismatched
nsstringis are compared without. // rdar://12716301


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174214 91177308-0d34-0410-b5e6-96231b3b80d8
Add some missing PPC cpus

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174215 91177308-0d34-0410-b5e6-96231b3b80d8
Comment parsing: improve the fidelity of XML output for many block commands

This change introduces a 'kind' attribute for the <Para> tag, that captures the
kind of the parent block command.

For example:

\todo Meow.

used to be just <Para>Meow.</Para>, but now it is
<Para kind="todo">Meow.</Para>


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174216 91177308-0d34-0410-b5e6-96231b3b80d8
Unbreak Makefile build after r174216


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174217 91177308-0d34-0410-b5e6-96231b3b80d8
Const'ify Preprocessor::getPredefinesFileID.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174218 91177308-0d34-0410-b5e6-96231b3b80d8
clang/test/CodeGenCXX/debug-info-class.cpp: Fixup for -Asserts.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174229 91177308-0d34-0410-b5e6-96231b3b80d8
Merge "special" types from different modules in the AST reader.

Different modules may have different views of the various "special"
types in the AST, such as the redefinition type for "id". Merge those
types rather than only considering the redefinition types for the
first AST file loaded.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174234 91177308-0d34-0410-b5e6-96231b3b80d8
libclang: introduce cxstring::{createRef,createDup} for C strings

Also migrate all clients from the old API.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174238 91177308-0d34-0410-b5e6-96231b3b80d8
This patch makes "&Cls::purevfn" not an odr use. This isn't what the standard
says, but that's a defect (to be filed). "Cls::purevfn()" is still an odr use.

Also fixes a bug that caused us to not mark the function referenced just
because we didn't want to mark it odr used.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174242 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174243 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Print Inline mode with -analyzer-display-progress.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174244 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Always inline functions with bodies generated by BodyFarm.

Inlining these functions is essential for correctness. We often have
cases where we do not inline calls. For example, the shallow mode and
when reanalyzing previously inlined ObjC methods as top level.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174245 91177308-0d34-0410-b5e6-96231b3b80d8
Basics

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174246 91177308-0d34-0410-b5e6-96231b3b80d8
Generalize DebugInfo tests by avoiding explicit metadata numbers

This addresses several (not all) debug info tests that use explicit metadata
numbers. Wherever the same number appeared more than once in a test I used
a named match to ensure the same number appeared in all those cases (this may
still be overly constraining test cases as they may not have actually cared
about that relationship). For one-off numbers I just replaced them with an
unnamed regex.

This may underconstrain poorly written test cases that were interested in
checking that certain metadata nodes were related but didn't actually match
on all the related nodes numbers.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174247 91177308-0d34-0410-b5e6-96231b3b80d8
Sentenc-ify comment added in r174206.

Based on post-commit review by Paul Robinson.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174248 91177308-0d34-0410-b5e6-96231b3b80d8