This reverts r328065.

I missed this one in r328085 and the bots were still failing.

llvm-svn: 328095

Removed a couple of methods from DispatchUnit.

llvm-svn: 328094

- constexpr is needed for out-of-class definition of the Type static
  member by some compilers
- MSVC is confused by the initialization of the static constexpr char[]
  member when it happens in a template specialization. Explicitly
  specifying the length of the array seems to be enough to help it
  figure things out.

llvm-svn: 328093

Summary:
We have had at least three pieces of code (in DWARFAbbreviationDeclaration,
DWARFAcceleratorTable and DWARFDie) that have hand-rolled support for
dumping unknown dwarf enum values. While not terrible, they are a bit
distracting and enable small differences to creep in (Unknown_ffff vs.
Unknown_0xffff). I ended up needing to add a fourth place
(DWARFVerifier), so it seems it would be a good time to centralize.

This patch creates an alternative to the XXXString dumping functions in
the BinaryFormat library, which formats an unknown value as
DW_TYPE_unknown_1234, instead of just an empty string. It is based on
the formatv function, as that allows us to avoid materializing the
string for unknown values (and because this way I don't have to invent a
name for the new functions :P).

In this patch I add formatters for dwarf attributes, forms, tags, and
index attributes as these are the ones in use currently, but adding
other enums is straight-forward.

Reviewers: dblaikie, JDevlieghere, aprantl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44570

llvm-svn: 328090

This reverts:
  r328072 "Move Compiler.h from Support to Demangler to fix layering."
  r328073 "Fix the actual user of DataTypes.h in llvm-c to avoid the circular dependency"

Failing bots:
  http://green.lab.llvm.org/green/job/clang-stage2-coverage-R/
  http://green.lab.llvm.org/green/job/clang-stage2-configure-Rlto/

llvm-svn: 328085

Summary:
When building the selection DAG we sometimes need to postpone
the handling of a dbg.value until the value it should refer to
is created. This is done by using the DanglingDebugInfoMap.
In the past this map has been limited to hold one dangling
dbg.value per value. This patch removes that restriction.

Reviewers: aprantl, rnk, probinson, vsk

Reviewed By: aprantl

Subscribers: Ka-Ka, llvm-commits, JDevlieghere

Tags: #debug-info

Differential Revision: https://reviews.llvm.org/D44610

llvm-svn: 328084

Fix build bot after r328078 "llvm-readobj] - Teach llvm-readobj to dump .note.gnu.property sections."

BB was: http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast/builds/27058/steps/test/logs/stdio

llvm-svn: 328080

NT_GNU_PROPERTY_TYPE_0 is a recently added type of .note.gnu.property
section specified in Linux Extensions to gABI.
(https://github.com/hjl-tools/linux-abi/wiki/Linux-Extensions-to-gABI)

Patch teach tool to print such notes properly.

Differential revision: https://reviews.llvm.org/D44469

llvm-svn: 328078

[X86][Broadwell] Merge multiple InstrRW entries that map to the same SchedWriteRes group (NFCI) (PR35955)

llvm-svn: 328076

llvm-svn: 328075

It's only called from one place and is defined just above that use.

llvm-svn: 328074

(follow-up to r328065)

llvm-svn: 328073

Support depends on Demangle (Support/Unix/Signals.inc), so Demangle
including Support/Compiler.h created a circular dependency.

Leave a forwarding shim of Compiler.h because it makes more sense for
users (a deeper fix might involve splitting Support into lower and upper
Support - but that also sounds a bit weird/awkward) than thinking about
the dependency on the Demangler.

llvm-svn: 328072

llvm-svn: 328071

Summary:
This code previously had a SmallVector of std::pairs containing an unsigned and another SmallVector. The outer vector was using the unsigned effectively as a key to decide which SmallVector to add into. So each time something new needed to be added the out vector needed to be scanned. If it wasn't found a new entry needed to be added to be added. This sounds very much like a map, but the next loop iterates over the outer vector to get a deterministic order.

We can simplify this code greatly if use SmallMapVector instead. This uses more stack space since we now have a vector and a map, but the searching and creating new entries all happens behind the scenes. It should also make the search more efficient though usually there are only a few entries so that doesn't matter much.

We could probably get determinism by just using std::map which would iterate over the unsigned key, but that would generate different output from what we get with the current implementation.

Reviewers: RKSimon, dblaikie

Reviewed By: dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44711

llvm-svn: 328070

Support depends on llvm-c (a few typedefs, macros, etc - Types.h,
Disassembler.h, and TargetMachine.h.

This could be done the other way - those macros/typedefs/etc could be
moved into Support and used from llvm-c instead. If someone feels that's
a better direction to go, happy to discuss it/try it out/etc.

llvm-svn: 328065

Also restrict to port 0 and 1 for SkylakeClient. It looks like the scheduler models don't account for client not having a full vector ALU on port 5 like server.

Fixes PR36808.

llvm-svn: 328061

Most basic possible test for the logic used by LICM.

Also contains a speculative build fix for compiles which complain about a definition of a stuct K; followed by a declaration as class K;

llvm-svn: 328058

The tests compile after r328049

llvm-svn: 328057

(Currently showing without, will enable and check in diff to show impact)

llvm-svn: 328056

Next step is to actually merge the implementations and get both implementations tested through the new printer.

llvm-svn: 328055

As discussed on D44687, there was no need for 2 separate for loops for collecting the Regex and then matching against instructions.

llvm-svn: 328052

The default thread model for wasm is single, and in this mode thread-local
global variables can be lowered identically to non-thread-local variables.

Differential Revision: https://reviews.llvm.org/D44703

llvm-svn: 328049

As noticed on D44687, these already match the WriteFMA def so can be removed.

llvm-svn: 328045

Unless Ded has some many I don't know about.

llvm-svn: 328043

The inline assembly generated for the ARC autorelease elision marker
must have a funclet token if it's emitted inside a funclet, otherwise
the inline assembly (and all subsequent code in the funclet) will be
marked unreachable by WinEHPrepare.

Note that this only applies for the non-O0 case, since at O0, clang
emits the autorelease elision marker itself rather than deferring to the
backend. The fix for clang is handled in a separate change.

Differential Revision: https://reviews.llvm.org/D44641

llvm-svn: 328042

Mingw uses the same stack protector functions as GCC provides
on other platforms as well.

Patch by Valentin Churavy!

Differential Revision: https://reviews.llvm.org/D27296

llvm-svn: 328039

term sections from .o files to look to see if the pointers have a relocation
entry and if so print the symbol name from the relocation entry.  If not fall
back to the existing code and use the pointer value to look up that value
in the symbol table.

rdar://38337506

llvm-svn: 328037

https://reviews.llvm.org/D44591

llvm-svn: 328035

llvm-svn: 328034

Both vectors contain unsigned so we can just use append to do the copying. Not only is this shorter, but it should be able to predict the final size and only grow the vector once if needed.

llvm-svn: 328033

llvm-svn: 328032

[TableGen] Pass result of std::unique to vector::erase instead of calculating a size and calling resize.

llvm-svn: 328031

Summary:
Added option -no-dwarf-debug-ranges option to disable emission of
.debug_ranges section.

Reviewers: probinson, echristo

Subscribers: aprantl, JDevlieghere, llvm-commits

Differential Revision: https://reviews.llvm.org/D44384

llvm-svn: 328030

This should fix the buildbots after r328011.

llvm-svn: 328029

It uses the MC framework and the tablegen matcher to do the
heavy lifting. Can handle both explicit and implicit locals
(-disable-wasm-explicit-locals). Comes with a small regression
test.

This is a first basic implementation that can parse most llvm .s
output and round-trips most instructions succesfully, but in order
to keep the commit small, does not address all issues.

There are a fair number of mismatches between what MC / assembly
matcher think a "CPU" should look like and what WASM provides,
some already have workarounds in this commit (e.g. the way it
deals with register operands) and some that require further work.
Some of that further work may involve changing what the
Disassembler outputs (and what s2wasm parses), so are probably
best left to followups.

Some known things missing:
- Many directives are ignored and not emitted.
- Vararg calls are parsed but extra args not emitted.
- Loop signatures are likely incorrect.
- $drop= is not emitted.
- Disassembler does not output SIMD types correctly, so assembler
  can't test them.

Patch by Wouter van Oortmerssen

Differential Revision: https://reviews.llvm.org/D44329

llvm-svn: 328028

Fix typo in the number of integer dividers.

llvm-svn: 328027

Temporarily revert the tests from r328012 as well.

llvm-svn: 328026

Temporarily revert r328012 (since it broke down the big-endian bots),
will resubmit an updated version later.

llvm-svn: 328024

llvm-svn: 328023