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
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
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
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
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
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
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
Summary: Add missing flag to UsersManual
It would be good to merge it to 4.0 branch.
Reviewers: hans
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D28727
llvm-svn: 292112
Before:
aaaaaaaaaaaaaaaaaa(aaaaaaaa, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
aaaaaaaaaaaaaaaaaaaaa);
After:
aaaaaaaaaaaaaaaaaa(aaaaaaaa,
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa::
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
aaaaaaaaaaaaaaaaaaaaa);
No new test cases, as the existing ones cover this fairly well.
llvm-svn: 292110
We have already refactored the underlying platform thread type into
__libcpp_thread_t, but there are few places in the source where we
still assume it is an integral type.
This patch refactores those points back into the threading API.
Differential revision: https://reviews.llvm.org/D28608
Reviewers: EricWF
llvm-svn: 292107
The unit test I added in the previous commit discovered a bug in
PrependPathComponent on windows -- it was calling SetFile with the host native
path syntax, whereas it should be explicitly specifying the path syntax (as
AppendPathComponent does). This fixes it.
llvm-svn: 292106
There is no point in regularly committing a binary file to the repository, as
this just unnecessarily increases the repository size. Interested people can
find the isl manual for example at isl.gforge.inria.fr/manual.pdf.
llvm-svn: 292105
I had a error in map-file.s testcase under MSVS2015/win32:
map-file.s:30:16: error: expected string not found in input
// CHECK-NEXT: 0000000000200158 0000000000000030 8 .eh_frame
<stdin>:2:1: note: scanning from here
0000000000200158 10 30 .eh_frame
Format string '%0*x' requires an argument of type 'unsigned int',
but argument has type 'uint64_t'. Proper format is '%0*llx' then.
This fixes testcase failture for me.
llvm-svn: 292102
Simplify a pshufb shuffle mask based on the elements of the mask that are actually demanded.
Differential Revision: https://reviews.llvm.org/D28745
llvm-svn: 292101
Summary:
PrependPathComponent was unconditionally inserting path separators between the
path components. This is not correct if the prepended path is "/", which caused
problems down the line. Fix the function to use the same algorithm as
AppendPathComponent and add a test. This fixes one part of llvm.org/pr31611.
Reviewers: clayborg, zturner
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D28677
llvm-svn: 292100
Summary: Change r291428 introduced ASI detection after closing curly braces. That would generally be correct, however this breaks indentation for structural statements. What happens is that CompoundStatementIndenter increases indentation for the current line, then after reading ASI creates a new line (with the increased line level), and only after the structural parser sees e.g. the if/then/else branch closed, line level is reduced. That leads to the new line started by ASI having a level too high.
Reviewers: djasper
Subscribers: sammccall, cfe-commits, klimek
Differential Revision: https://reviews.llvm.org/D28763
llvm-svn: 292099
We were frequently checking for a list of types and the different types
conveyed no real information. So lump them together explicitly.
llvm-svn: 292095
Pavel Labath