When checking if the type is a r-value ref, we would not do a complete
check. This would result in us treating a trailing parameter reference
`&)` as a r-value ref, and improperly inject the cv qualifier on the
type. We now correctly demangle the type `KFvRmE` as a constant
function rather than a constant reference.
Fixes PR31741!
llvm-svn: 292973
Summary:
GVNHoist performs all the optimizations that MLSM does to loads, in a
more general way, and in a faster time bound (MLSM is N^3 in most
cases, N^4 in a few edge cases).
This disables the load portion.
Note that the way ld_hoist_st_sink.ll is written makes one think that
the loads should be moved to the while.preheader block, but
1. Neither MLSM nor GVNHoist do it (they both move them to identical places).
2. MLSM couldn't possibly do it anyway, as the while.preheader block
is not the head of the diamond, while.body is. (GVNHoist could do it
if it was legal).
3. At a glance, it's not legal anyway because the in-loop load
conflict with the in-loop store, so the loads must stay in-loop.
I am happy to update the test to use update_test_checks so that
checking is tighter, just was going to do it as a followup.
Note that i can find no particular benefit to the store portion on any
real testcase/benchmark i have (even size-wise). If we really still
want it, i am happy to commit to writing a targeted store sinker, just
taking the code from the MemorySSA port of MergedLoadStoreMotion
(which is N^2 worst case, and N most of the time).
We can do what it does in a much better time bound.
We also should be both hoisting and sinking stores, not just sinking
them, anyway, since whether we should hoist or sink to merge depends
basically on luck of the draw of where the blockers are placed.
Nonetheless, i have left it alone for now.
Reviewers: chandlerc, davide
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29079
llvm-svn: 292971
When demangling a CV-qualified function type with a final parameter with
a reference type, we would insert the CV qualification on the parameter
rather than the function, and in the process adjust the insertion point
by one extra, splitting the type name. This avoids doing so, even
though the attribution is still incorrect.
llvm-svn: 292965
Fix an off-by-one case which would destroy the final parameter in a
CV-qualified function type with a reference. We still get the CV
qualification incorrect, but at least we do not clobber the type name
any longer.
Partially fixes PR31741.
llvm-svn: 292963
Summary: These accessors maps directly to the command line option.
Reviewers: steven_wu
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D29065
llvm-svn: 292960
Summary: As per title. This will add the instructiions we are interested in in the worklist.
Reviewers: mehdi_amini, majnemer, andreadb
Differential Revision: https://reviews.llvm.org/D29081
llvm-svn: 292957
Regalloc creates COPY instructions which do not formally use VALU.
That results in v_mov instructions displaced after exec mask modification.
One pass which do it is SIOptimizeExecMasking, but potentially it can be
done by other passes too.
This patch adds a pass immediately after regalloc to add implicit exec
use operand to all VGPR copy instructions.
Differential Revision: https://reviews.llvm.org/D28874
llvm-svn: 292956
pc_array_size and kPcArrayMaxSize appear to be measured in elements, not
bytes, so we shouldn't multiply idx by sizeof(uptr) in this bounds
check. 32-bit Chrome was tripping this assertion because it has 64
million coverage points. I don't think it's worth adding a test that has
that many coverage points.
llvm-svn: 292955
In order to follow the pattern of the existing 'slow-misaligned-128store'
option, rename the option 'no-quad-ldst-pairs' to 'slow-paired-128'.
llvm-svn: 292954
Summary:
This is in keeping with LLVM convention. The classes are InstPrinters, but the library is ${target}AsmPrinter.
This patch is in response to bryant pointing out to me that Lanai was the only backend deviating from convention here. Thanks!
Reviewers: jpienaar, bryant
Subscribers: mgorny, jgosnell, llvm-commits
Differential Revision: https://reviews.llvm.org/D29043
llvm-svn: 292953
Also fixes a much worse bug where we emitted the wrong gap size for the
def range uncovered by the test for this issue.
Fixes PR31726.
llvm-svn: 292949
The comment talked about replacing vpmovzxwd+vpslld+vpsrad with vpmovsxwd - which isn't valid as we're sign extending a <8 x i1> bool vector not an all/nobits <8 x i16>
llvm-svn: 292948
Summary:
When conditional branches with complex conditions are split into
multiple branches in SelectionDAGBuilder::FindMergedConditions, also
handle inverted conditions. These may sometimes appear without having
been optimized by InstCombine when CodeGenPrepare decides to sink and
duplicate cmp instructions, causing them to have only one use. This
problem can be increased by e.g. GVNHoist hiding more cmps from
InstCombine by combining equivalent cmps from different blocks.
For example codegen X & !(Y | Z) as:
jmp_if_X TmpBB
jmp FBB
TmpBB:
jmp_if_notY Tmp2BB
jmp FBB
Tmp2BB:
jmp_if_notZ TBB
jmp FBB
Reviewers: bogner, MatzeB, qcolombet
Subscribers: llvm-commits, hiraditya, mcrosier, sebpop
Differential Revision: https://reviews.llvm.org/D28380
llvm-svn: 292944
and UNSUPPORTED"
After r292904 llvm-lit fails to emit the test results in the XML format for
Apple's internal buildbots.
rdar://30164800
llvm-svn: 292942
Next code crashed under MSVS2015 for me:
this->OutSec->Info = this->Info = 1 + It - Symbols.begin();
Because It was end() and addition of 1 is not allowed.
vector implementation catched and failed that inside:
_Myiter& operator+=(difference_type _Off)
{ // increment by integer
#if _ITERATOR_DEBUG_LEVEL == 2
if (this->_Getcont() == 0
|| this->_Ptr + _Off < ((_Myvec *)this->_Getcont())->_Myfirst
|| ((_Myvec *)this->_Getcont())->_Mylast < this->_Ptr + _Off)
{ // report error
_DEBUG_ERROR("vector iterator + offset out of range");
_SCL_SECURE_OUT_OF_RANGE;
llvm-svn: 292940
It turns out things are not as simple as I hoped. sys/personality.h
exists on all androids but it does not define the required symbols on
all platform levels.
Add a compile check for platform level to compile against both new and
old android headers.
llvm-svn: 292939
Fixes PR30964. The old behavior can be achieved using a setting.
Patch by: Andras Leitereg!
Differential Revision: https://reviews.llvm.org/D28667
llvm-svn: 292938
Implementation of software single step for FreeBSD on ARM. The code is
largely based on the Linux implementation of the same functionality.
Patch by Dmitry Mikulin!
Differential Revision: https://reviews.llvm.org/D25756
llvm-svn: 292937
The comment in ISDOpcodes.h for EXTRACT_VECTOR_ELT now explains that the high
bits are undefined if the result is extended.
Review: Hal Finkel
llvm-svn: 292933
methods from protocols and categories as well
Code completion results for class methods already include instance methods
from Objective-C root classes. This commit ensures that the results also include
instance methods from protocols that the root class implements and root class
categories as well.
rdar://28012953
Differential Revision: https://reviews.llvm.org/D27257
llvm-svn: 292932
On android API level 9 the header does not get included transitively.
Include it directly.
As far as I can see, all non-windows platforms should have this header.
If that turns out to be incorrect, we can add some ifdefs around that.
llvm-svn: 292931
a lazy-asserting PoisoningVH.
AssertVH is fundamentally incompatible with cache-invalidation of
analysis results. The invaliadtion happens after the AssertingVH has
already fired. Instead, use a PoisoningVH that will assert if the
dangling handle is ever used rather than merely be assigned or
destroyed.
This patch also removes all of the (numerous) doomed attempts to work
around this fundamental incompatibility. It is a pretty significant
simplification IMO.
The most interesting change is in the Inliner where we still do some
clearing because we don't want to rely on the coarse grained
invalidation strategy of the containing pass manager. However, I prefer
the approach that contains this logic to the cleanup phase of the
Inliner, and I think we could enhance the CGSCC analysis management
layer to make this even better in the future if desired.
The rest is straight cleanup.
I've also added a test for one of the harder cases to work around: when
a *module analysis* contains many AssertingVHes pointing at functions.
Differential Revision: https://reviews.llvm.org/D29006
llvm-svn: 292928
Summary:
Test cases I've added in review D26218 were too brittle and weren't working properly.
This patch fixes this.
Reviewers: alexfh
Reviewed By: alexfh
Subscribers: cfe-commits
Patch by Nikita Kakuev!
Differential Revision: https://reviews.llvm.org/D26466
llvm-svn: 292926
AssertingVH that delays any reported error until the handle is *used*.
This allows data structures to contain handles which become dangling
provided the data structure is cleaned up afterward rather than used for
anything interesting.
The implementation is moderately horrible in part because it works to
leave AssertingVH in place, undisturbed. If at some point there is
consensus that this is simply how AssertingVH should be used, it can be
substantially simplified.
This remains a boring pointer in a non-asserts build as you would
expect. The only place we pay cost is in asserts builds.
I plan to use this as a basis for replacing the asserting VHs that
currently dangle in the new PM until invalidation occurs in both LVI and
SCEV.
Differential Revision: https://reviews.llvm.org/D29061
llvm-svn: 292925
This reverts commit r292883. Unfortunately <string_view> uses
_LIBCPP_ASSERT in a way which is not compatible with the C++11 dylib
build. I'll investigate more tomorrow.
llvm-svn: 292923
Each test contains 20-30K test cases but takes only several (from 4 to 10)
seconds to complete on average machine. The tests cover the majority of
AMDGPU Gfx7/Gfx8 instructions, including many dark corners, and intended
to quickly find out if something is broken.
llvm-svn: 292922
Saleem Abdulrasool