The purpose of the YAML diagnostic output file is to collect information on
optimizations performed, or not performed, for later processing by tools that
help users (and compiler developers) understand how code was optimized. As
such, the diagnostics that appear in the file should not be coupled to what a
user might want to see summarized for them as the compiler runs, and in fact,
because the user likely does not know what optimization diagnostics their tools
might want to use, the user cannot provide a useful filter regardless. As such,
we shouldn't filter the diagnostics going to the output file.
Differential Revision: https://reviews.llvm.org/D25224
llvm-svn: 283236
CMake requires that all targets expressed as dependencies exist, so we can't have intrinsics_gen in LLVM_COMMON_DEPENDS when it is written out, otherwise projects building out of tree will have CMake errors.
llvm-svn: 283234
IntegerType::MAX_INT_BITS is apparently not in sync with Type::SubclassData
size. This patch fixes this.
Differential Revision: https://reviews.llvm.org/D24814
llvm-svn: 283215
This patch corresponds to review:
The newly added VSX D-Form (register + offset) memory ops target the upper half
of the VSX register set. The existing ones target the lower half. In order to
unify these and have the ability to target all the VSX registers using D-Form
operations, this patch defines Pseudo-ops for the loads/stores which are
expanded post-RA. The expansion then choses the correct opcode based on the
register that was allocated for the operation.
llvm-svn: 283212
Treat soft-float as unsupported for fast-isel. Additionally, ensure we check
that lowering f32 arguments also considers the case of soft-float mode.
Reviewers: ehostunreach, vkalintiris, zoran.jovanovic
Differential Review: https://reviews.llvm.org/D24505
llvm-svn: 283209
Previously code would access invalid memory and may crash,
patch fixes the issue.
Differential revision: https://reviews.llvm.org/D25187
llvm-svn: 283204
The SMULO/UMULO DAG nodes, when not directly supported by the target,
expand to a multiplication twice as wide. In case that the resulting
type is not legal, an __mul?i3 intrinsic is used. Since the type is
not legal, the legalizer cannot directly call the intrinsic with
the wide arguments; instead, it "pre-lowers" them by splitting them
in halves.
The "pre-lowering" code in essence made assumptions about
the calling convention, specifically that i(N*2) values will be
split into two iN values and passed in consecutive registers in
little-endian order. This, naturally, breaks on a big-endian system,
such as our OR1K out-of-tree backend.
Thanks to James Miller <james@aatch.net> for help in debugging.
Differential Revision: https://reviews.llvm.org/D25223
llvm-svn: 283203
When using broken input object found using AFL,
getExtendedSymbolTableIndex() crashed because ShndxTable
was empty as object does not contain SHT_SYMTAB_SHNDX section.
Differential revision: https://reviews.llvm.org/D25189
llvm-svn: 283196
This fixes the inconsistency of the fp denormal option names: in LLVM this was
DenormalType, but in Clang this is DenormalMode which seems better.
Differential Revision: https://reviews.llvm.org/D24906
llvm-svn: 283192
This patch corresponds to review:
https://reviews.llvm.org/D23155
This patch removes the VSHRC register class (based on D20310) and adds
exploitation of the Power9 sub-word integer loads into VSX registers as well
as vector sign extensions.
The new instructions are useful for a few purposes:
Int to Fp conversions of 1 or 2-byte values loaded from memory
Building vectors of 1 or 2-byte integers with values loaded from memory
Storing individual 1 or 2-byte elements from integer vectors
This patch implements all of those uses.
llvm-svn: 283190
Reintroduce versioning of shared libraries via SOVERSION, addressing
the issues with the previous design, since Gentoo is relying
on shared-split install of LLVM. The SOVERSIONs were originally
introduced in r229720 for all libraries, and removed in r252093 in favor
of custom SONAME. As far as I understand, the major concern with the old
versioning was that the used versions were incompatible with ldconfig.
Having considered that, this commit introduce SOVERSIONS with the
following considerations:
1. SOVERSIONs are formed of major & minor version concatenated -- i.e.
for 4.0 its .so.40. This matches the common practice where the first
version number indicates ABI breakage, and therefore fixes the issues
with ldconfig. Additionally, VERSION with the remaining verion
components appended is used, however this is not strictly necessary.
2. The versioning is only applied to libraries with no explicit SONAME
specified -- i.e. it won't apply to libLLVM but only to the split
libraries. It will also apply to libraries installed by the subprojects.
3. The versioning is only done on *nix systems, Darwin excluded. This
matches the current use of SONAME.
Differential Revision: https://reviews.llvm.org/D24757
llvm-svn: 283189
Use separate doctrees between different Sphinx builders in order to
prevent race condition issues due to multiple Sphinx instances accessing
the same doctree cache in parallel.
Bug: https://llvm.org/bugs/show_bug.cgi?id=23781
Differential Revision: https://reviews.llvm.org/D23755
llvm-svn: 283188
Summary:
The minimum version of Python necessary to run the LLVM test suite is
2.7. Code to work around Python 2.5 and lower isn't necessary.
Reviewers: ddunbar, echristo, delcypher, beanz
Subscribers: llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D25209
llvm-svn: 283169
Slightly improves the precision of GlobalsAA in certain situations, and
makes the behavior of optimization passes more predictable.
Differential Revision: https://reviews.llvm.org/D24104
llvm-svn: 283165
The tail duplication pass uses an assumed layout when making duplication
decisions. This is fine, but passes up duplication opportunities that
may arise when blocks are outlined. Because we want the updated CFG to
affect subsequent placement decisions, this change must occur during
placement.
In order to achieve this goal, TailDuplicationPass is split into a
utility class, TailDuplicator, and the pass itself. The pass delegates
nearly everything to the TailDuplicator object, except for looping over
the blocks in a function. This allows the same code to be used for tail
duplication in both places.
This change, in concert with outlining optional branches, allows
triangle shaped code to perform much better, esepecially when the
taken/untaken branches are correlated, as it creates a second spine when
the tests are small enough.
llvm-svn: 283164
We now build MemorySSA in its ctor, instead of waiting until the user
calls MemorySSA::getWalker. This silently changed our unittests, since
we add BasicAA to AAResults *after* constructing MemorySSA (...but
before calling MemorySSA::getWalker).
None of them broke because we do most of our "did this get optimized
correctly?" tests in .ll files.
llvm-svn: 283158
WebAssembly has officially switched from being an AST to being a stack
machine. Update various bits of terminology and README.md entries
accordingly.
llvm-svn: 283154
Summary:
optparse is deprecated in Python 2.7, which is the minimum version of
Python required to run the LLVM test suite. Replace its usage in lit
with argparse, optparse's 2.7 replacement module.
argparse has several benefits over optparse, but this commit does not
make use of those benefits yet. Instead, it simply uses the new API,
and attempts to keep the number of changes to a minimum.
Confirmed that lit's test suite, as well as LLVM's regression test suite,
still pass with these changes.
Patch By Brian Gesiak!
Reviewers: ddunbar, echristo, beanz, delcypher
Subscribers: llvm-commits, mehdi_amini
Differential Revision: https://reviews.llvm.org/D25173
llvm-svn: 283152
This is to avoid problems with win32 + ELF which surprisingly happens a
lot in practice: If a user just specifies -march on the commandline the
object format changes along with the architecture to ELF in many
instances while the OS stays with the default/host OS.
llvm-svn: 283151
This avoids llc using the hosts OS/vendor as defaults and triggering
unwanted behaviour in the tests. This should deal with the buildbot
breakages on windows after r283140.
llvm-svn: 283149
Refactor the code so that the same function can be used for all
instructions with all the same operands for up to 3 operands.
This is going to be useful for cast instructions.
NFC.
llvm-svn: 283144
Each shadow only represents data flow that is restricted to its reaching
def. Propagating more than that could lead to spurious register liveness,
resulting in extra (incorrectly) block live-ins.
llvm-svn: 283143
Windows has no GOT relocations the way elf/darwin has. Some people use
x86_64-pc-win32-macho to build EFI firmware; Do not produce GOT
relocations for this target.
Differential Revision: https://reviews.llvm.org/D24627
llvm-svn: 283140
Summary: LoopSink pass uses some common function in LICM. This patch refactor the LICM code to make it usable by LoopSink pass (https://reviews.llvm.org/D22778).
Reviewers: davidxl, danielcdh, hfinkel, chandlerc
Subscribers: hfinkel, llvm-commits
Differential Revision: https://reviews.llvm.org/D24168
llvm-svn: 283134
Splitting the edge is nontrivial because of the landing pad, and we would
currently assert trying to do it.
Differential Revision: https://reviews.llvm.org/D24680
llvm-svn: 283129
