Summary:
Previously there were three ways to inform the NVVMReflect pass whether
you wanted to flush denormals to zero:
* An LLVM command-line option
* Parameters to the NVVMReflect constructor
* Metadata on the module itself.
This change removes the first two, leaving only the third.
The motivation for this change, aside from simplifying things, is that
we want LLVM to be aware of whether it's operating in FTZ mode, so other
passes can use this information. Ideally we'd have a target-generic
piece of metadata on the module. This change moves us in that
direction.
Reviewers: tra
Subscribers: jholewinski, llvm-commits
Differential Revision: https://reviews.llvm.org/D28700
llvm-svn: 292068
This is uncovered when running tools/dsymutil/X86/empty_range.s.test
with ASAN. Haven't investigate yet, whether that means there is an ODR
violation in that test.
llvm-svn: 292065
This reverts commit r291973.
The test fails in a Release build with LLVM_BUILD_GLOBAL_ISEL enabled.
AFAICT, llc segfaults. I'll add a few more details to the original
commit.
llvm-svn: 292061
First, I've moved a test of IVUsers from the LSR tree to a dedicated
IVUsers test directory. I've also simplified its RUN line now that the
new pass manager's loop PM is providing analyses on their own.
No functionality changed, but it makes subsequent changes cleaner.
llvm-svn: 292060
events.
This pass sometimes has a pointer to BlockFrequencyInfo so it needs
custom invalidation logic. It is also otherwise immutable so we can
reduce the number of invalidations that happen substantially.
llvm-svn: 292058
negotiateFunction where appropriate.
Replacing the old ECError with a custom type allows us to attach the name of
the function that could not be negotiated, enabling better diagnostics for
negotiation failures.
llvm-svn: 292055
a function's CFG when that CFG is unchanged.
This allows transformation passes to simply claim they preserve the CFG
and analysis passes to check for the CFG being preserved to remove the
fanout of all analyses being listed in all passes.
I've gone through and removed or cleaned up as many of the comments
reminding us to do this as I could.
Differential Revision: https://reviews.llvm.org/D28627
llvm-svn: 292054
These all involve bitcasts around the memory operands. This isn't
something we normally do for isel patterns. I suspect DAG combine should
convert the load type making this unnecessary.
llvm-svn: 292050
Summary:
This string parameter is passed to -fuse-ld when linking. It can be
an absolute path to your custom linker, otherwise clang will look for
`ld.{name}`.
Reviewers: davide, tejohnson, pcc
Subscribers: llvm-commits, mgorny
Differential Revision: https://reviews.llvm.org/D28738
llvm-svn: 292047
This patch adds a new class NameHashTableBuilder which creates /names streams.
This patch contains a test to confirm that a stream created by
NameHashTableBuilder can be read by NameHashTable reader class.
Differential Revision: https://reviews.llvm.org/D28707
llvm-svn: 292040
mark it as never invalidated in the new PM.
The old PM already required this to work, and after a discussion with
Hal this seems to really be the only sensible answer. The cache
gracefully degrades as the IR is mutated, and most things which do this
should already be incrementally updating the cache.
This gets rid of a bunch of logic preserving and testing the
invalidation of this analysis.
llvm-svn: 292039
cover domtree and alias analysis. These are the pretty clear analyses
that we would always want to survive this pass.
To make these survive, we also need to preserve the assumption cache.
Added a test that verifies the important bits of this preservation.
llvm-svn: 292037
This fixes some problems when building ClangDiagnostics.cpp on Visual Studio 2017 RC. As far as I understand, there was a change in the implementation of the constructor for std::vector with two iterator parameters, which in our case causes an attempt to dereference const Iterator objects. Since there was no overload for a const Iterator, the compile would fail.
Patch by Hugo Puhlmann!
Differential Revision: https://reviews.llvm.org/D28726
llvm-svn: 292034
VPMACSDQH/VPMACSDQL act as VPADDQ( VPMULDQ( x, y ), z ) - multiply+extending either the odd/even 4i32 input elements and adding to v2i64 accumulator
llvm-svn: 292020
Tests showing missed opportunities to use XOP's integer fma instructions
Some of these are pretty awkward to match as they often have implicit sext/trunc stages but many just ignore overflow bits which makes things pretty straightforward.
llvm-svn: 292017
Correct handling of the following FileCheck options is implemented in
update_llc_test_checks.py and update_test_checks.py scripts:
1) -check-prefix (with a single dash)
2) -check-prefixes (with multiple prefixes)
Differential Revision: https://reviews.llvm.org/D28572
llvm-svn: 292008
Isel now selects masked move instructions for vselect instead of blendm. But sometimes it beneficial to register allocation to remove the tied register constraint by using blendm instructions.
This also picks up cases where the masked move was created due to a masked load intrinsic.
Differential Revision: https://reviews.llvm.org/D28454
llvm-svn: 292005
We'll now expand AVX512_128_SET0 to an EVEX VXORD if VLX available. Or if its not, but register allocation has selected a non-extended register we will use VEX VXORPS. And if its an extended register without VLX we'll use a 512-bit XOR. Do the same for AVX512_FsFLD0SS/SD.
This makes it possible for the register allocator to have all 32 registers available to work with.
llvm-svn: 292004
This fallthrough if other cases are added between fabs and default
could cause fabs to fall to the next case resulting in a bug.
Better getting rid of it immediately just to be sure.
llvm-svn: 292003
extractProfTotalWeight checks if the profile type is sample profile, but
before that we have to ensure that summary is available. Also expanded
the unittest to test the case where there is no summar
Differential Revision: https://reviews.llvm.org/D28708
llvm-svn: 291982
