Extend -Bprefix functionality and make it closer to gcc. If the "prefix"
is not a directory, Driver::GetProgramPath() routine does not try to append
the program name as a "path component" to it. It just joins the "prefix" with
the program name and checks the resulting path existence.

The patch reviewed by Rafael Espindola.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167114 91177308-0d34-0410-b5e6-96231b3b80d8
Fix if-else braces layout accordingly to the style guide.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167118 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Let ConstraintManager subclasses provide a more efficient checkNull.

Previously, every call to a ConstraintManager's isNull would do a full
assumeDual to test feasibility. Now, ConstraintManagers can override
checkNull if they have a cheaper way to do the same thing.
RangeConstraintManager can do this in less than half the work.

<rdar://problem/12608209>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167138 91177308-0d34-0410-b5e6-96231b3b80d8
Decouple code-completion for the SkipFunctionBodies frontend option and
add a test to make sure code-completion skips bodies.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167141 91177308-0d34-0410-b5e6-96231b3b80d8
If skipping bodies is enabled outside code-completion, just skip the body directly
without using tentative parsing.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167142 91177308-0d34-0410-b5e6-96231b3b80d8
This patch removes the XFAIL for powerpc for
test/CodeGenCXX/member-alignment.cpp.  The test succeeds for
powerpc64-unknown-linux-gnu.  If other flavors of powerpc are
shown by buildbots to still be broken, we can adjust the test
at that time.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167143 91177308-0d34-0410-b5e6-96231b3b80d8
Add "static" to some functions in altivec.c where it was missing.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167148 91177308-0d34-0410-b5e6-96231b3b80d8
[driver] Completely rework how superfluous options are stripped out of the crash
diagnostics script.

This addresses the FIXME pertaining to quoted arguments.  We also delineate
between those flags that have an argument (e.g., -D macro, -MF file) and
those that do not (e.g., -M, -MM, -MG).  Finally, we add the -dwarf-debug-flags
to the list of flags to be removed.
rdar://12329974

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167152 91177308-0d34-0410-b5e6-96231b3b80d8
Fix for -ast-dump-filter

Summary:
-ast-dump-filter implementation used to stop AST traversal after traversing a NULL Decl node.

Added test and fixed.

Reviewers: djasper, klimek, rsmith

Reviewed By: djasper

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D93

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167155 91177308-0d34-0410-b5e6-96231b3b80d8
getArchTypeForDarwinArchName is only used in the clang driver, copy it there.
I will remove it from llvm in the next commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167156 91177308-0d34-0410-b5e6-96231b3b80d8
[driver] Remove the -ccc-host-triple alias.  This has been replaced by the
-target option.
rdar://10692880

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167158 91177308-0d34-0410-b5e6-96231b3b80d8
ARM AAPCS-VFP: fix tracking of allocated VFP registers.

According to the spec, we can backfill VFP registers that were skipped due
to alignment constraints.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167159 91177308-0d34-0410-b5e6-96231b3b80d8
[driver] Remove an extra space with the -internal-externc-isystem option, so
that matching works correctly.
Part of rdar://12329974

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167161 91177308-0d34-0410-b5e6-96231b3b80d8
[clang tests] Added require ppc64-registered-target to Headers/altivec-header.c to ensure it only runs on ppc64.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167162 91177308-0d34-0410-b5e6-96231b3b80d8
[PCH] Remove the stat cache from the PCH file.

The stat cache became essentially useless ever since we started
validating all file entries in the PCH.
But the motivating reason for removing it now is that it also affected
correctness in this situation:

-You have a header without include guards (using "#pragma once" or #import)
-When creating the PCH:
  -The same header is referenced in an #include with different filename cases.
  -In the PCH, of course, we record only one file entry for the header file
  -But we cache in the PCH file the stat info for both filename cases

-Then the source files are updated and the header file is updated in a way that
 its size and modification time are the same but its inode changes

-When using the PCH:
  -We validate the headers, we check that header file and we create a file entry with its current inode
  -There's another #include with a filename with different case than the previously created file entry
  -In order to get its stat info we go through the cached stat info of the PCH and we receive the old inode
  -because of the different inodes, we think they are different files so we go ahead and include its contents.

Removing the stat cache will potentially break clients that are attempting to use the stat cache
as a way of avoiding having the actual input files available. If that use case is important, patches are welcome
to bring it back in a way that will actually work correctly (i.e., emit a PCH that is self-contained, coping with
literal strings, line/column computations, etc.).

This fixes rdar://5502805

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167172 91177308-0d34-0410-b5e6-96231b3b80d8
[driver] Remove an extra space with the -iprefix option, so that
matching works correctly.
Part of rdar://12329974


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167173 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Fix a bug in SimpleStreamChecker - return after sink.

Thanks Ted.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167176 91177308-0d34-0410-b5e6-96231b3b80d8
Correctly reject gotos in function-level try blocks.  PR14225.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167184 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Rename ConditionTruthVal::isTrue to isConstrainedTrue.

(and the same for isFalse)

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167186 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Minor cleanup in SimpleStreamChecker's class definition.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167187 91177308-0d34-0410-b5e6-96231b3b80d8