clang/lib/Basic/FileManager.cpp: Detect the root directory with PathV2. It should be better fix for PR10331, or, "clang X:\foo.c" fails.

llvm-svn: 158596

The target specific __builtin_va_list types are now explicitly built instead
of injecting strings into the preprocessor input.

llvm-svn: 158592

broken duplicates of comments that are in the corresponding header files.

llvm-svn: 158550

llvm-svn: 158549

llvm-svn: 158548

This functionality is based on what is done on ARM, and enables selecting PPC CPUs
in a way compatible with gcc's driver. Also, mirroring gcc (and what is done on x86),
-mcpu=native support was added. This uses the host cpu detection from LLVM
(which will also soon be updated by refactoring code currently in backend).

In order for this to work, the target needs a list of valid CPUs -- we now accept all CPUs accepted by LLVM.
A few preprocessor defines for common CPU types have been added.

llvm-svn: 158334

llvm-svn: 158284

from Tom Honermann!

llvm-svn: 158211

In standard C since C89, a 'translation-unit' is syntactically defined to have
at least one "external-declaration", which is either a decl or a function
definition. In Clang the latter gives us a declaration as well.

The tricky bit about this warning is that our predefines can contain external
declarations (__builtin_va_list and the 128-bit integer types). Therefore our
AST parser now makes sure we have at least one declaration that doesn't come
from the predefines buffer.

Also, remove bogus warning about empty source files. This doesn't catch source
files that only contain comments, and never fired anyway because of our
predefines.

PR12665 and <rdar://problem/9165548>

llvm-svn: 158085

when single float ABI is selected.

llvm-svn: 157996

llvm-svn: 157907

llvm-svn: 157906

llvm-svn: 157904

llvm-svn: 157733

SSE4A should not imply LZCNT and POPCNT. FMA4 should imply SSE4A. Add missing break at the end of btver1 feature list.

llvm-svn: 157680

This doesn't really fit the existing SSELevel so it gets an extra flag.

llvm-svn: 157630

llvm-svn: 157626

No test as the output is highly dependend on the local configuration.

llvm-svn: 157520

NV_CONTRIB

llvm-svn: 157403

llvm-svn: 157173

Because in CUDA types do not have associated address spaces,
globals are declared in their "native" address space, and accessed
by bitcasting the pointer to address space 0.  This relies on address
space 0 being a unified address space.

llvm-svn: 157167

llvm-svn: 156567

that bridging between the two is free. Saves ~4k of code size,
although I don't see any measurable performance difference
(unfortunately).

llvm-svn: 156187

validate that we didn't override the contents of any of such files.

If this is detected, emit a diagnostic error and recover gracefully
by using the contents of the original file that the PCH was built from.

Part of rdar://11305263

llvm-svn: 156107

llvm-svn: 155900

llvm-svn: 155632

llvm-svn: 155624

with _REENTRANT. Also remove undef _POSIX_THREADS in phread.h.

Patch by Brad Smith!

llvm-svn: 155535

test suite failures.

llvm-svn: 155371

llvm-svn: 155363

r155047. See the LLVM log for the primary motivation:
  http://llvm.org/viewvc/llvm-project?rev=155047&view=rev

Primary commit r154828:
  - Several issues were raised in review, and fixed in subsequent
    commits.
  - Follow-up commits also reverted, and which should be folded into the
    original before reposting:
    - r154837: Re-add the 'undef BUILTIN' thing to fix the build.
    - r154928: Fix build warnings, re-add (and correct) header and
      license
    - r154937: Typo fix.

Please resubmit this patch with the relevant LLVM resubmission.

llvm-svn: 155048

MIPS: Followup to r154606. Expand list of accepted MIPS target features in the MipsTargetInfoBase::setFeatureEnabled() routine.

llvm-svn: 154998

type for rewriter project will be BoolTy.
// rdar://11231426. 

llvm-svn: 154861

llvm-svn: 154828

Otherwise MipsTargetInfoBase::getDefaultFeatures() might return an invalid
features set with an empty feature name.

llvm-svn: 154606

This method is very hot, it is called when emitting diagnostics, in -E mode
and for many #pragma handlers. It scans through the whole source file to
count newlines, records and caches them in a vector.

The speedup from vectorization isn't very large, as we fall back to bytewise
scanning when we hit a newline. There might be a way to avoid leaving the sse
loop but everything I tried didn't work out because a call to push_back
clobbers xmm registers.

About 2% speedup on average on "clang -E > /dev/null" of all .cpp files in
clang's lib/Sema.

llvm-svn: 154204

to the base class MipsTargetInfoBase. These macros are applicable for both
32/64-bits targets.

llvm-svn: 154116

uses Neon instructions for single-precision FP.

-mfpmath=neon is analogous to passing llc -mattr=+neonfp.
-mfpmath=[vfp|vfp2|vfp3|vfp4] is analogous to passing llc -mattr=-neonfp.

rdar://11108618

llvm-svn: 154046

Patch by Jack Carter. Testcase cleanup by me.

llvm-svn: 153921

llvm-svn: 153678