llvm-svn: 315970

llvm-svn: 315969

The nan family of math routines do not rely on global state.  They do
however depend on their parameter.  This fits the description of pure:
  Functions which have no effects except the return value and their
  return value depends only on the parameters and/or global variables.
Mark the family as `readonly`.

llvm-svn: 315968

llvm-svn: 315967

This patch adds support for passing an arbitrary python stream
(anything inheriting from IOBase) to SetOutputFileHandle or
SetErrorFileHandle.

Differential revision: https://reviews.llvm.org/D38829
<rdar://problem/34870417> 

llvm-svn: 315966

The right way to parse arch names is by creating a triple. This was
using getArchTypeForLLVMName before, which doesn't really do the right
thing here.

llvm-svn: 315965

We want to be writing a 32bit value, so we should be writing 4 bytes
instead of 2.

Patch by Alex Langford <apl@fb.com>.

Differential Revision: https://reviews.llvm.org/D38872

llvm-svn: 315964

In r315960, I accidentally assumed that the first line segment is
guaranteed to be the non-gap region entry segment (given that one is
present). It can actually be any segment on the line, and the test I
checked in demonstrates that.

llvm-svn: 315963

This reverts commit r315713.  It causes PR34968.

I think I know what the problem is, but I don't think I'll have time to fix it
this week.

llvm-svn: 315962

llvm-svn: 315961

Gap areas make it possible to correctly determine when to use counts
from deferred regions. Before gap areas were introduced, llvm-cov needed
to use a heuristic to do this: it ignored counts from segments that
start, but do not end, on a line. This heuristic breaks down on a simple
example (see PR34962).

This patch removes the heuristic and picks counts from any region entry
segment which isn't a gap area.

llvm-svn: 315960

Summary:
This patch allows checking the availability of cursors through libclang and clang.cindex (Python).
This e.g. allows to check whether a C++ member function has been marked as deleted.

Reviewers: arphaman, jbcoe

Reviewed By: jbcoe

Subscribers: cfe-commits

Tags: #clang

Patch by jklaehn (Johann Klähn)

Differential Revision: https://reviews.llvm.org/D36973

llvm-svn: 315959

Summary: Previously, `VisitAttributes` was not called for function and class templates and thus their attributes were not accessible using libclang.

Reviewers: bkramer, arphaman, rsmith, jbcoe

Reviewed By: jbcoe

Subscribers: cfe-commits

Tags: #clang

Patch by jklaehn (Johann Klähn)

Differential Revision: https://reviews.llvm.org/D36955

llvm-svn: 315958

Use the return value of UpdateNodeOperands(); in some cases, UpdateNodeOperands() modifies the node in-place and using the return value isn’t strictly necessary. However, it does not necessarily modify the node, but may return a resultant node if it already exists in the DAG. See comments in UpdateNodeOperands(). In that case, the return value must be used to avoid such scenarios as an infinite loop (node is assumed to have been updated, so added back to the worklist, and re-processed; however, node hasn’t changed so it is once again passed to UpdateNodeOperands(), assumed modified, added back to worklist; cycle infinitely repeats).

Differential Revision: https://reviews.llvm.org/D38466

llvm-svn: 315957

Record::getValueAsString returns a stringref to an interned
string (apparently had been changed since most of tablegen was
written). In this patch, I audited the usage of getValueAsString
to find places where we can trivially stop storing 'std::string' and instead
keep the stringref.

There was one instance where an unnecessary 'stringstream' was being used,
so that has been removed as well to unblock the stringref replacing string fix.

Differential Revision: https://reviews.llvm.org/D38979

llvm-svn: 315956

llvm-svn: 315955

Now that we have our own implementation of cvtres, we can add resource
files directly to the linkrepro.

Differential Revision: https://reviews.llvm.org/D38974

llvm-svn: 315954

This comes up when pre-processing standalone .s files containing
hash-prefixed comments. The pre-processor should skip the unknown
directive and not emit an extra newline as we were doing.

Fixes PR34950

llvm-svn: 315953

We add /usr/local/include to the include directory list for some BSD
systems. We should mark this as a system directory to avoid files from
/usr/local/include getting picked over files shipping with llvm.

This typically manifested as gtest headers installed with the system
getting picked over the ones shipping with llvm.

Patch by Petr Penzin <penzin.dev@gmail.com>

Differential Revision: https://reviews.llvm.org/D37415

llvm-svn: 315952

GCC ignore qualifiers on array types. Since we seem to have this
function primarily for GCC compatibility, we should try to match that
behavior.

This also adds a few more test-cases __builtin_types_compatible_p,
which were inspired by GCC's documentation on the builtin.

llvm-svn: 315951

Typically we don't use the stringstream, so instead use
raw_string_stream.  Additionally, the dependent function
changed to use raw_ostream.

llvm-svn: 315950

Without this, /linkrepro would create an invalid tar file.

No tests because this requires Windows and the linkrepro tests
require not-Windows.

Differential Revision: https://reviews.llvm.org/D38973

llvm-svn: 315948

This reverts commit r315823, thus re-applying r315781.

Also make sure we don't use G_BITCAST mapping for non-generic registers.
Non-generic registers don't have a type but do have a reg bank.
Something the COPY mapping now how to deal with but the G_BITCAST
mapping don't.

-- Original Commit Message --
We use to resort on the generic implementation to get the mappings for
COPYs. The generic implementation resorts on table lookup and
dynamically allocated objects to get the valid mappings.

Given we already know how to map G_BITCAST and have the static mappings
for them, use that code path for COPY as well. This is much more
efficient.

Improve the compile time of RegBankSelect by up to 20%.

Note: When we eventually generate all the mappings via TableGen, we
wouldn't have to do that dance to shave compile time. The intent of this
change was to make sure that moving to static structure really pays off.

NFC.

llvm-svn: 315947

Anything bigger than 64-bit just map to FPR.

llvm-svn: 315946

We used to mark all G_BITCAST of 128-bit legal but only for vector
types. Scalars of this size are just fine as well.

llvm-svn: 315945

This patch adds a new kind of metadata that indicates the possible callees of
indirect calls.

Differential Revision: https://reviews.llvm.org/D37354

llvm-svn: 315944

This will prevent doubling of line endings when parsing assembly and
emitting assembly.

Otherwise we'd parse the directive, consume the end of statement, hit
the next end of statement, and emit a fresh newline.

llvm-svn: 315943

llvm-svn: 315942

llvm-svn: 315941

[Transforms] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

llvm-svn: 315940

llvm-svn: 315939

llvm-svn: 315938

Summary: Code is already in compiler-rt

Reviewers: kcc

Subscribers: krytarowski, llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D38912

llvm-svn: 315937

static __global int Var = 0; 
__global int* Ptr[] = {&Var};
...

In this case Var is a non premptable symbol and so its address can be used as the value of Ptr, with a base relative relocation that will add the delta between the ELF address and the actual load address. Such relocations do not require a symbol.

This also fixes LLD which was incorrectly generating a PCREL64 for this case.

Differential Revision: https://reviews.llvm.org/D38910

llvm-svn: 315936

static __global int Var = 0; 
__global int* Ptr[] = {&Var};
...

In this case Var is a non premptable symbol and so its address can be used as the value of Ptr, with a base relative relocation that will add the delta between the ELF address and the actual load address. Such relocations do not require a symbol.

Differential Revision: https://reviews.llvm.org/D38909

llvm-svn: 315935

This documentation was copied directly from the GCC
documentaiton in r257867.  Reverting and alterting
the original author so that it can be rewritten in
copyright-safe language.

llvm-svn: 315934

fix  llvm-isel-fuzzer: LLVMFuzzerTestOneInput should never return non-zero (according to the contract)

llvm-svn: 315933

Revert MSVC 2017 build fix and fix it by moving the method that implicitly instantiates addPredicate out of line

llvm-svn: 315932

Attributes in the docs were previously sorted (apparently)
by the attribute name, so AnyX86Interrupt ended up being the
first one, rather than in a meaningful place. This resulted in the
4 'interrupt' titled sections being all in different places.

This replaces it with a naive alphabetical sort (case sensitive, underscore
and special characters first, etc).

Differential Revision: https://reviews.llvm.org/D38969

llvm-svn: 315931

MSVC doesn't seem to like implicitly instantiating addPredicate and then
explicitly specializing it later. It causes an internal compiler error.

llvm-svn: 315930