llvm-svn: 177342

llvm-svn: 177341

For each compile unit, we want to register a function that will flush that
compile unit. Otherwise, __gcov_flush() would only flush the counters within the
current compile unit, and not any outside of it.

PR15191 & <rdar://problem/13167507>

llvm-svn: 177340

llvm-svn: 177339

PPC64 supports unaligned loads and stores of 64-bit values, but
in order to use the r+i forms, the offset must be a multiple of 4.
Unfortunately, this cannot always be determined by examining the
immediate itself because it might be available only via a TOC entry.

In order to get around this issue, we additionally predicate the
selection of the r+i form on the alignment of the load or store
(forcing it to be at least 4 in order to select the r+i form).

llvm-svn: 177338

The __llvm_gcov_flush() functions only work for the local compile unit. However,
when __gcov_flush() is called, the user expects all of the counters to be
flushed, not just the ones in the current compile unit.

This adds some library functions that register the flush functions. It also
defined __gcov_flush() so that loops through that list and calls the functions.

PR15191 & <rdar://problem/13167507>

llvm-svn: 177337

Issue reported by Tom Honermann!
http://llvm.org/bugs/show_bug.cgi?id=15377

llvm-svn: 177336

Add missing diagnostic for a nested-name-specifier on a free-standing type definition. Bump some related diagnostics from warning to extension in C++, since they're errors there. Add some missing checks for function specifiers on non-function declarations.

llvm-svn: 177335

The default logic marks them as too expensive.

For example, before this patch we estimated:
  cost of 16 for instruction:   %r = uitofp <4 x i16> %v0 to <4 x float>

While this translates to:
  vmovl.u16 q8, d16
  vcvt.f32.u32  q8, q8

All other costs are left to the values assigned by the fallback logic. Theses
costs are mostly reasonable in the sense that they get progressively more
expensive as the instruction sequences emitted get longer.

radar://13445992

llvm-svn: 177334

Fix cost of some "cheap" cast instructions. Before this patch we used to
estimate for example:
  cost of 16 for instruction:   %r = fptoui <4 x float> %v0 to <4 x i16>

While we would emit:
  vcvt.s32.f32  q8, q8
  vmovn.i32 d16, q8
  vuzp.8  d16, d17

All other costs are left to the values assigned by the fallback logic. Theses
costs are mostly reasonable in the sense that they get progressively more
expensive as the instruction sequences emitted get longer.

radar://13434072

llvm-svn: 177333

- don't use preprocessor macros
- use switch statements
- don't put anything in the lldb namespace, use "lldb_perf" namespace.
- Pass the action struct into each TestStep() for each step fill in
- Modify the ActionWanted class to have accessors to make the continue, next, finish, kill instead of using preproc macros

llvm-svn: 177332

Also add some checks to not merge globals used within landing pad instructions or marked as "used".

llvm-svn: 177331

Report and suggested fix by Tom Honermann!
http://llvm.org/bugs/show_bug.cgi?id=13020

llvm-svn: 177330

I have filed http://llvm.org/bugs/show_bug.cgi?id=15538 against clang.
This code is safer anyway because "cast" assumes you really know that
it's okay to make the cast. In this case isa should not be false and
dyn_cast should not return null as far as I understand. But everything
else is valid so I did not want to revert my previous patch for attributes
mips16/nomips16 or use an llvm_unreachable here which would make a number
of our tests fail for mips.

llvm-svn: 177329

Hal Finkel recently added code to allow unaligned memory references
for PowerPC.  Two tests were temporarily modified with
-disable-ppc-unaligned to keep them from failing.  This patch adjusts
the expected code generation for the unaligned references.

llvm-svn: 177328

llvm-svn: 177327

We hitch a ride with the existing OpndItins class that was used to add
instruction itinerary classes in the many multiclasses in this file.

Use the link provided by the X86FoldableSchedWrite.Folded to find the
right SchedWrite for folded loads.

llvm-svn: 177326

llvm-svn: 177325

any, and add a note that we cannot treat __int128 as an extended integral type.

llvm-svn: 177324

This new-style scheduling information is going to replace the
instruction iteneraries.

This also serves as a test case for Andy's fix in r177317.

llvm-svn: 177323

This handles the case where we have an inbounds GEP with alloca as the pointer.
This fixes the regression in PR12750 and rdar://13286434.
Note that we can also fix this by handling some GEP cases in isKnownNonNull.

llvm-svn: 177321

reports, and implement implicit definition of inheriting constructors.
Remaining missing features: inheriting constructor templates, implicit
exception specifications for inheriting constructors, inheriting constructors
from dependent bases.

llvm-svn: 177320

llvm-svn: 177319

llvm-svn: 177318

Properly handle cases where a group of instructions have different
SchedRW lists with the same itinerary class.
This was supposed to work, but I left in an early break.

llvm-svn: 177317

Apparently my final cleanup to use a relevant suffix for these tests before
committing r176831 caused them to stop running since lit wasn't configured to
run tests with that suffix in those directories (why don't we just have a
global suffix list?). So, add the suffix to the relevant directories & fix the
test that has bitrotted over the last week due to my debug info schema changes.

llvm-svn: 177315

llvm-svn: 177314

When doing SCEV based code generation, we ignore instructions calculating values
that are fully defined by a SCEV expression. The values that are calculated by
this instructions are recalculated on demand.

This commit improves the check to verify if certain instructions can be ignored
and recalculated on demand.

llvm-svn: 177313

llvm-svn: 177312

into the pre-preprocessed file to be passed to
modern translator when compiling in no debug mode.
// rdar://13138170

llvm-svn: 177311

Removed raw references to __sun__, __FreeBSD__, __GLIBC__ and __linux__; now just check to see if they are defined.

llvm-svn: 177310

llvm-svn: 177309

llvm-svn: 177307

llvm-svn: 177306

delegating to Generic_GCC::SelectTool (it already updates the tool map).

llvm-svn: 177305

llvm-svn: 177304

llvm-svn: 177303

argument.

llvm-svn: 177301

useIntegratedAs.

llvm-svn: 177300

llvm-svn: 177299