The C standard has historically not specified whether or not these functions should raise the inexact flag. Traditionally on Darwin, these functions *did* raise inexact, and the llvm lowerings followed that conventions. n1778 (C bindings for IEEE-754 (2008)) clarifies that these functions should not set inexact. This patch brings the lowerings for arm64 and x86 in line with the newly specified behavior. This also lets us fold some logic into TD patterns, which is nice.
Differential Revision: http://reviews.llvm.org/D12969
llvm-svn: 248266
Summary:
Based on a patch by David Chisnall. I've modified the original patch as follows:
* Moved the expansion to the TargetStreamers so that the directive isn't
expanded when emitting assembly.
* Fixed an operand order bug.
* Changed the move instructions from DADDu to OR to match recent changes to GAS.
Reviewers: vkalintiris
Subscribers: llvm-commits, emaste, seanbruno, theraven
Differential Revision: http://reviews.llvm.org/D13017
llvm-svn: 248258
Summary:
No functional change since no InstrItinData is provided.
Reviewers: vkalintiris
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12190
llvm-svn: 248257
Summary:
Normally, these macros are defined in fnctl.h. However, GLIBC exposes their
definition through <sys/file.h> too. This change allows us to compile
LLDB with non-GLIBC C libraries.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D13022
llvm-svn: 248255
It wasn't correctly handling this case:
int oneTwoThree = 123;
int oneTwo = 12;
method();
Review: http://reviews.llvm.org/D12369
Patch by Beren Minor. Thank you!
llvm-svn: 248254
Summary:
For fixed length instructions, we can use -max_len to limit the fuzzer to a
single instruction. This doesn't work for variable length instruction sets
since a 4-byte input could consist of one 4-byte instruction or two 2-byte
instructions.
This patch adds a --insn-limit to llvm-mc-fuzzer to limit the input in
terms of instructions processed.
Reviewers: kcc
Subscribers: kcc, llvm-commits
Differential Revision: http://reviews.llvm.org/D12960
llvm-svn: 248253
This patch generalizes the lowering of shuffles as zero extensions to allow extensions that don't start from the first element. It now recognises extensions starting anywhere in the lower 128-bits or at the start of any higher 128-bit lane.
The motivation was to reduce the number of high cost pshufb calls, but it also improves the SSE2 case as well.
Differential Revision: http://reviews.llvm.org/D12561
llvm-svn: 248250
Skipped tests can be dropped from xUnit reports if either
the name or the skip reason matches one of a given set of
regular expression patterns (via re.search(), not re.match()).
New formatter option for the xunit formatter:
--ignore-skip-matching-reason and
--ignore-skip-matching-name
Both are results-formatter options.
llvm-svn: 248247
Previously the code added an extra nullptr entry to a static array and then created an ArrayRef with a size one less than the static array. If there were no other entries the array would just contain the nullptr and the ArrayRef would be crated with size 0.
Instead, put the right number of entries in the array and explicitly emit 'None' if the size would be 0. This allows the static array constructor of makeArrayRef to be used.
llvm-svn: 248244
Before, clang's internal assembler would reject the inline asm in clang's
Intrin.h. To make sure this doesn't happen for other Intrin.h functions using
__asm__ blocks, add 32-bit and 64-bit codegen tests for Intrin.h.
Sadly, these tests discovered that __readcr3 and __writecr3 have bad
implementations in 64-bit builds. This will have to be fixed in a follow-up.
llvm-svn: 248234
Added key press handling and a first responder system and the ability for windows that can be first responders to be selected and have key presses routed to the first resonder, delegates and also travel up the parent chain.
Remove the temp file that was being created.
llvm-svn: 248232
Summary:
We should either require the DT info to be available, or check if it's
available in every place we use DT (and we already miss such check in
one place, which causes failures in some cases). As other loop passes
preserve DT and it's usually available, it makes sense to just require
it here.
There is no regression test, because the bug only shows up if pass
manager decides to clean DT info right before LoopUnswitch. If
loop-unswitch is run separately, DT is available, so bug isn't exposed.
Reviewers: chandlerc, hfinkel
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13036
llvm-svn: 248230
The parallel test runner now sends the terminate event to the formatter
(if there is one) after the parallel test runs but before dumping anything
to stdout/stderr at the end of the run. This allows the existing
stdout/stderr summary reporting to co-exist nicely with a formatter like
the test_results.Curses that otherwise clobbers the screen.
llvm-svn: 248228
This is an LLD extension to MSVC link.exe command line. MSVC linker
does not write symbol tables for executables. We do unless no /debug
option is given.
There's a situation that we want to enable debug info but don't want
to emit the symbol table. One example is when we are comparing output
file size. With this patch, you can tell the linker to not create
a symbol table by just specifying /nosymtab.
llvm-svn: 248225
We know that an argmemonly function can only access memory pointed to by it's pointer arguments. Rather than needing to consider all possible stores as aliasing (as we do for a readonly function), we can only consider the aliasing of the pointer arguments.
Note that this change only addresses hoisting. I'm thinking about how to address speculation safety as well, but that will be a different change.
FYI, argmemonly disallows accessing memory through non-pointer typed arguments.
Differential Revision: http://reviews.llvm.org/D12771
llvm-svn: 248220
Turns out that not every basic block is guaranteed to have a node within the DominatorTree. This is really hard to trigger, but the test case from the PR managed to do so. There's active discussion continuing about what documentation and/or invariants needed cleaned up.
llvm-svn: 248216
Stephen Canon