A CommonInputSection is a section containing all common symbols.
That was an input section but was abstracted in a different way
than the synthetic input sections because it was written before
the synthetic input section was invented.

This patch rewrites CommonInputSection as a synthetic input section
so that it behaves better with other sections.

llvm-svn: 286053

In short the patch introduces support for linking object file conform
MIPS N32 ABI [1]. This ABI is similar to N64 ABI but uses 32-bit
pointer size.

The most non-trivial requirement of this ABI is one more relocation
packing format. N64 ABI puts multiple relocation type into the single
relocation record. The N32 ABI uses series of successive relocations
with the same offset for this purpose. In this patch, new function
`mergeMipsN32RelTypes` handle this case and "convert" N32 relocation to
the N64 relocation so the rest of the code keep unchanged.

For now, linker does not support series of relocations applied to sections
without SHF_ALLOC bit. Probably later I will add the support or insert
some sort of assert into the `relocateNonAlloc` routine to catch this
case.

[1] ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/MIPS-N32-ABI-Handbook.pdf

Differential revision: https://reviews.llvm.org/D26298

llvm-svn: 286052

Previously, we do this piece of code to iterate over all input sections.

  for (elf::ObjectFile<ELFT> *F : Symtab.getObjectFiles())
    for (InputSectionBase<ELFT> *S : F->getSections())

It turned out that this mechanisms doesn't work well with synthetic
input sections because synthetic input sections don't belong to any
input file.

This patch defines a vector that contains all input sections including
synthetic ones.

llvm-svn: 286051

Add some additional asserts that ensure newly code-generated memory accesses
are defined on all domain and schedule domain instances.

llvm-svn: 286050

llvm-svn: 286049

Consistently use register class pat frags instead of spelling out
the type and class each time.

llvm-svn: 286048

Add asserts that verify that the memory accesses of a new copy statement
are defined for all domain instances the copy statement is defined for.

llvm-svn: 286047

llvm-svn: 286046

Don't regenerate a zeroable element mask with computeZeroableShuffleElements when its already available.

llvm-svn: 286045

Don't regenerate a zeroable element mask with computeZeroableShuffleElements when its already available.

llvm-svn: 286044

Don't regenerate a zeroable element mask with computeZeroableShuffleElements when its already available.

llvm-svn: 286043

Don't regenerate a zeroable element mask with computeZeroableShuffleElements when its already available.

llvm-svn: 286042

Before:
  aaaaaaaaaaaaaaa<
      aaaaaaaaa, aaaaaaaaaa,
      aaaaaaaaaaaaaa><<<aaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaaaaaaaaa>>>();

After:
  aaaaaaaaaaaaaaa<aaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaaaaa>
      <<<aaaaaaaaa, aaaaaaaaaa, aaaaaaaaaaaaaaaaaa>>>();

llvm-svn: 286041

Don't regenerate a zeroable element mask with computeZeroableShuffleElements when its already available.

llvm-svn: 286040

Don't regenerate a zeroable element mask with computeZeroableShuffleElements when its already available.

llvm-svn: 286039

Summary:
SmallSetVector uses DenseSet, but that means we need to reserve some
values for the empty and tombstone keys.

It seems to me we should have a general way to let us store full-range
ints inside of DenseSets, and furthermore that we probably shouldn't
silently let you add ints into DenseSets without explicitly promising
that they're in range.  But that's a battle for another day; for now,
just fix this code, since we currently do something Very Bad when
compiling ffmpeg.

Fixes PR30914.

Reviewers: jeremyhu

Subscribers: llvm-commits, mzolotukhin

Differential Revision: https://reviews.llvm.org/D26323

llvm-svn: 286038

We are repeatedly calling computeZeroableShuffleElements in many shuffle lowering calls for the same shuffle mask/inputs.

This is a first step towards reusing the zeroable result, initially just for lowerVectorShuffleAsShift calls.

llvm-svn: 286037

This is just the basic separation, without any cleanup. Further changes
will follow.

llvm-svn: 286036

Differential Revision:	https://reviews.llvm.org/D26315

llvm-svn: 286035

llvm-svn: 286034

[AVX-512] Use an equality compare instead of StringRef::startswith in a few places in auto upgrade that were looking for the complete intrinsic name anyway.

llvm-svn: 286033

Summary:
Update the boundries for mprotect.
Patch by Andrew Adams. Fixes PR30905.

Reviewers: loladiro, andrew.w.kaylor, chandlerc

Subscribers: abadams, llvm-commits

Differential Revision: https://reviews.llvm.org/D26312

llvm-svn: 286032

It currently fires an assert if you even try. Looking back, I don't think it ever worked because it only changed the name of the function object, but not the intrinsic ID stored in it. Given that, I think it can be removed since no one has noticed or complained in the past 4 years.

llvm-svn: 286031

Differential revision: https://reviews.llvm.org/D26320

llvm-svn: 286030

llvm-svn: 286029

llvm-svn: 286028

llvm-svn: 286027

ExecutionEngine::removeModule.

llvm-svn: 286026

This change fixes a bug that was introduced by r285851.
r285851 converted .interp section as an output section to an input
section. But I forgot to make it a "Live" section, so if -gc-section
is given, it was garbage collected.

llvm-svn: 286025

This Makes sure we only export targets that we're distributing, since
cmake will fail to import the file otherwise due to missing targets.

llvm-svn: 286024

[ClangTidy - performance-unnecessary-value-param] Only add "const" when current parameter is not already const qualified

Reviewers: alexfh, sbenza, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26207

llvm-svn: 286010

llvm-svn: 286009

Summary: IsExpensiveToCopy can return false positives for incomplete types, so ignore them.

All existing ClangTidy tests that depend on this function still pass as the types are complete.

Reviewers: alexfh, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26195

llvm-svn: 286008

This replaces every occurrence of _LIBCPP_STD_VER in the tests with
TEST_STD_VER. Additionally, for every affected
file, #include "test_macros.h" is being added explicitly if it wasn't
already there.

https://reviews.llvm.org/D26294

llvm-svn: 286007

Summary: This patch returns the same label if the CP entry with the same value has been created.

Reviewers: eli.friedman, rengolin, jmolloy

Subscribers: majnemer, jmolloy, llvm-commits

Differential Revision: https://reviews.llvm.org/D25804

llvm-svn: 286006

It depends on host's pow(3), and mingw's pow doesn't raise any errors, just returns +INF.

llvm-svn: 286005

It turned ou that we actually want to call std::for_each even if
threading is supported. Unless --thread is given, LLD shouldn't use
more than one threads.

llvm-svn: 286004

llvm-svn: 286003

This reflects the current state of Global ISel.  As progress is
made, we'll document our design decisions in it.
Comments very welcome!

llvm-svn: 286002

llvm-svn: 286001