Revert "Using an invalid -O falls back on -O3 instead of an error"

Trying to fix test failures since earlier today.

One of the tests added in this commit is outputting test/Driver/clang_f_opts.s
which the builders that build in-tree (eg. clang-native-arm-cortex-a9) are
trying to run as a test case, causing failures.

clang_f_opts.c:
  If -### doesn't emit the warning then this test probably shouldn't be in
  here in the first place. Frontend maybe?

invalid-o-level.c:
  Running %clang_cc1 in the Driver tests doesn't make sense because -cc1
  bypasses the driver. (I'm not reverting the commit that introduced this but
  please fix instead of keeping it this way.)

Reverting to fix the build failures and also so that the tests can be thought
out more thoroughly.

This reverts commit r194817.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194845 91177308-0d34-0410-b5e6-96231b3b80d8
Fix bogus diagnostic wording. There's no such thing as a compound expression.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194849 91177308-0d34-0410-b5e6-96231b3b80d8
Diagnose C++11 attributes before fp_contract pragmas.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194850 91177308-0d34-0410-b5e6-96231b3b80d8
These ACLE tests no longer need to cast the return value.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194854 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC ARC. Lookup type associated with objc_bridage at
the point of CF object type-cast and issue diagnostic
if it is not a valid ObjectiveC class. // rdar//15454846.
This is wip.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194861 91177308-0d34-0410-b5e6-96231b3b80d8
Fix typo in CGRecordLayoutBuilder.cpp: s/Field/Fields/ in comment

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194863 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC ARG. A positive test of my previous patch.
// rdar://15454846


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194864 91177308-0d34-0410-b5e6-96231b3b80d8
PR8455: Handle an attribute between a goto label and a variable declaration per
the GNU documentation: the attribute only appertains to the label if it is
followed by a semicolon. Based on a patch by Aaron Ballman!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194869 91177308-0d34-0410-b5e6-96231b3b80d8
PR17949: Fix crash if someone puts a namespace inside a class template.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194872 91177308-0d34-0410-b5e6-96231b3b80d8
Darwin(ish): enable embedded compiler-rt builds on Darwin.

This builds extra versions of compiler-rt targeting various unhosted targets.
Only built on Darwin since even though they're not iOS or OSX, they share some
quirks.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194878 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC ARC. Only briding of pointer to struct CF object is allowed.
Improve on wording on illegal objc_bridge argumment.
// rdar://15454846


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194881 91177308-0d34-0410-b5e6-96231b3b80d8
Updated comment - testing commit rights



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194884 91177308-0d34-0410-b5e6-96231b3b80d8
Implemented aarch64 Neon scalar vmulx_lane intrinsics
Implemented aarch64 Neon scalar vfma_lane intrinsics
Implemented aarch64 Neon scalar vfms_lane intrinsics

Implemented legacy vmul_n_f64, vmul_lane_f64, vmul_laneq_f64
intrinsics (v1f64 parameter type) using Neon scalar instructions.

Implemented legacy vfma_lane_f64, vfms_lane_f64,
vfma_laneq_f64, vfms_laneq_f64 intrinsics (v1f64 parameter type)
using Neon scalar instructions.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194889 91177308-0d34-0410-b5e6-96231b3b80d8
Corrected comment about MS prgama warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194897 91177308-0d34-0410-b5e6-96231b3b80d8
Consumed analysis: track state of temporary objects.
Earlier versions discarded the state too soon, and did not track state changes,
e.g. when passing a temporary to a move constructor.  Patch by
chris.wailes@gmail.com; review and minor fixes by delesley.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194900 91177308-0d34-0410-b5e6-96231b3b80d8
Downgrade the Error on an 'inline' operator new or delete to an ExtWarn. Some
projects are relying on such (questionable) practices, so we should give them
a way to opt out of this diagnostic.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194905 91177308-0d34-0410-b5e6-96231b3b80d8
X86: Make specifying avx2 simpler on Darwin with '-arch'

Teach the '-arch' command line option to enable the compiler-friendly
features of core-avx2 CPUs on Darwin. Pass the information along in the
target triple like Darwin+ARM does.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194907 91177308-0d34-0410-b5e6-96231b3b80d8
ObjetiveC ARC. Start diagnosing invalid toll free bridging.
// rdar://15454846.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194915 91177308-0d34-0410-b5e6-96231b3b80d8
If a replaceable global operator new/delete is marked inline, don't warn if
it's also __attribute__((used)), since that undoes the problematic part of
'inline'.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194916 91177308-0d34-0410-b5e6-96231b3b80d8
Move remaining %clang_cc1 tests out of test/Driver

clang -cc1 skips the driver so it never made sense to include these with the
Driver tests.

Basic type tests and flag tests generally both go in Frontend.

Now that the final -cc1 tests have been moved out of test/Driver, add a
local substitution to enforce and detect future mistakes.

These miscategorized tests were probably the source of confusion in r194817.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194919 91177308-0d34-0410-b5e6-96231b3b80d8