Here we define the `graph` subcommand which generates a graph from the function
call information and uses it to present the call information graphically with
additional annotations.

Reviewers: dblaikie, dberris

Differential Revision: https://reviews.llvm.org/D27243

llvm-svn: 292156

Attempt to workaround MSVC build issue where I suspect an enum class constant 0 is considered a possible null pointer

I can't reproduce this so far with web compilers, so throwing this at
the bots to see if it sticks.

llvm-svn: 292155

Generally, the ISEL is expanded into if-then-else sequence, in some
cases (like when the destination register is the same with the true
or false value register), it may just be expanded into just the if
or else sequence.

llvm-svn: 292154

It's not clear what 'First' and 'Second' mean, so use 'Inner' and 'Outer'
to match foldShiftedShift() and add comments with formulas, so it's easier
to see what's going on.

llvm-svn: 292153

llvm-svn: 292152

Some existing 'FIXME' tests are still not folded because of splat holes in value tracking.

llvm-svn: 292151

The shift-shift possibilities became easier to see after:
https://reviews.llvm.org/rL292145

llvm-svn: 292150

llvm-svn: 292149

Fixes:

  Warning, treated as error:
  /home/buildbot/llvm-build-dir/llvm-sphinx-docs/llvm/src/docs/NVPTXUsage.rst:333:
  ERROR: Error in "code-block" directive:
  maximum 1 argument(s) allowed, 17 supplied.

llvm-svn: 292148

This feature is currently not supported and an explicit assert to prevent the
introduction of such accesses has been added in r282893. This test case allows
to reproduce the assert (and without the assert the miscompile) added in
r282893. It will help when adding such support at some point.

llvm-svn: 292147

LLD exports symbols that are also present in used shared libraries to
make sure they are preempted at runtime. That is a reasonable default,
but we must allow for it to be overwritten with linker script. If we
don't, libraries that expect to be able to hide a c++ delete operator
will fail.

This should fix the firebird build.

llvm-svn: 292146

Reduces code duplication and makes it easier to extend these folds for vectors.

llvm-svn: 292145

[InstCombine][SSE] Tests showing missed opportunities to pass demanded elts through a packss/packus truncation

llvm-svn: 292144

std::to_string is not available in the android ndk. Using llvm::to_string
instead.

Committing as obvious.

llvm-svn: 292143

Falkor only partially implements the ARMv8.1a extensions, so this patch
refactors the support for the SQRDML[A|S]H instruction into a separate
feature.

Differential Revision: https://reviews.llvm.org/D28681

llvm-svn: 292142

std::to_string is not available in the android NDK. Use llvm::to_string instead.

Committing as obvious.

llvm-svn: 292141

Before this change, this code has been mixed with a check for non-affine
loops (and when originally introduce was also duplicated). By creating
a separate loop and explicitly documenting this property, the current
behavior becomes a lot more clear.

llvm-svn: 292140

llvm-svn: 292139

The loop body in buildAliasGroups is still too large to easily scan it. Hence,
we split the loop body out into a separate function to improve readability.

llvm-svn: 292138

Instead of modifying the original alias group and repurposing it as read-write
access group when splitting accesses in read-only and read-write accesses, we
just keep all three groups: the original alias group, the set of read-only
accesses and the set of read-write accesses.  This allows us to remove some
complicated iterator handling and also allows for more code-reuse in
calculateMinMaxAccess.

llvm-svn: 292137

Several buildbots encountered a crash in tablegen when building this commit.
Reverting while I investigate the cause.

llvm-svn: 292136

Mark the dynamic-exception tests as unsupported under C++17, since it has no dynamic-exception specs. Also, remove a FIXME workaround from the config that allowed these tests to work under C++17. This addresses PR#31621.

llvm-svn: 292135

This patch refactors code that calls codegen for target regions.  Currently
the codebase only supports the 'target' directive.  The patch pulls out
common target processing code into a static function that can be called
by codegen for any target directive.

Reviewers: ABataev
Differential Revision: https://reviews.llvm.org/D28752

llvm-svn: 292134

When transferring affected values in the cache from an old value, identified by
the value of the current callback, to the specified new value we might need to
insert a new entry into the DenseMap which constitutes the cache. Doing so
might delete the current callback object. Move the copying logic into a new
function, a member of the assumption cache itself, so that we don't run into UB
should the callback handle itself be removed mid-copy.

Differential Revision: https://reviews.llvm.org/D28749

llvm-svn: 292133

Summary:
Adds a RegisterBank tablegen class that can be used to declare the register
banks and an associated tablegen pass to generate the necessary code.

Reviewers: t.p.northover, ab, rovka, qcolombet

Subscribers: aditya_nandakumar, rengolin, kristof.beyls, vkalintiris, mgorny, dberris, llvm-commits, rovka

Differential Revision: https://reviews.llvm.org/D27338

llvm-svn: 292132

This reverts commit 1d0e0374438ca6e153844c683826ba9b82486bb1.

llvm-svn: 292131

llvm-svn: 292130

Generally, the ISEL is expanded into if-then-else sequence, in some
cases (like when the destination register is the same with the true
or false value register), it may just be expanded into just the if
or else sequence.

llvm-svn: 292128

llvm-svn: 292127

It seems over time we added an additional map that maps from the base address
of a read-only access to the actual access. However this map is never used.
Drop the creation and use of this map to simplify our alias check generation
code.

llvm-svn: 292126

The alias group will anyhow be cleared at the end of this function and is not
used afterwards. We avoid an explicit clear() call at multiple places to
improve readability of this code.

llvm-svn: 292125

llvm-svn: 292124

llvm-svn: 292123

Hoisting small vectors out of a loop seems to be a pure performance
optimization, which is unlikely to have great impact in practice. As this
hoisting just increases code-complexity, we fold the SmallVectors back into
the loop.

In subsequent commits, we will further simplify and structure this code, but
we committed this change separately to provide an explanation to make clear
that we purposefully reverted this optimization.

llvm-svn: 292122

The function buildAliasGroups got very large. We extract out the splitting
of alias groups to reduce its size and to better document the current behavior.

llvm-svn: 292121

The function buildAliasGroups got very large. We extract out the actual
construction of alias groups to reduce its size and to better document the
current behavior.

llvm-svn: 292120

seems to have been a C&P error from old GCC specs for OpenBSD.

llvm-svn: 292119

llvm-svn: 292118

Permit explicit $fcc<X> operand in c.cond.fmt instruction.

Add c.cond.fmt to the MIPS to microMIPS instruction mapping table.

Check that $fcc1 - $fcc7 are unusable for MIPS-I to MIPS-III for
c.cond.fmt, bc1t, bc1f.

Reviewers: seanbruno, zoran.jovanovic, vkalintiris

Differential Revision: https://reviews.llvm.org/D24510

llvm-svn: 292117

llvm-svn: 292116