The ';' was introduced in 237642. With it in place, we get a large number of
warnings in -pedantic mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237667 91177308-0d34-0410-b5e6-96231b3b80d8
This cleans up the FoldConstantArithmetic code by factoring out the case
of two ConstantSDNodes into an own function. This avoids unnecessary
complexity for many callers who already have ConstantSDNode arguments.
This also avoids an intermeidate SmallVector datastructure and a loop
over that datastructure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237651 91177308-0d34-0410-b5e6-96231b3b80d8
On 64-bit targets, Function has 4-bytes of padding in its struct layout.
This uses the space for the intrinsic ID. It is set and recalculated whenever the function name is set. This is similar to the current behavior which clears the function from the intrinsic ID cache when its renamed.
The intrinsic cache itself is removed as the only purpose was to speedup calls to getIntrinsicID() which now just reading the new field in the struct.
Reviewed by Duncan. http://reviews.llvm.org/D9836
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237642 91177308-0d34-0410-b5e6-96231b3b80d8
The common case is a direct call, so don't make all those users have to
explicitly pass the result of llvm::Function::getFunctionType.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237627 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Added isLoadableOrStorableType to PointerType.
We were doing some checks in some places, occasionally assert()ing instead
of telling the caller. With this patch, I'm putting all type checking in
the same place for load/store type instructions, and verifying the same
thing every time.
I also added a check for load/store of a function type.
Applied extracted check to Load, Store, and Cmpxcg.
I don't have exhaustive tests for all of these, but all Error() calls in
TypeCheckLoadStoreInst are being tested (in invalid.test).
Reviewers: dblaikie, rafael
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9785
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237619 91177308-0d34-0410-b5e6-96231b3b80d8
The destructor of BlockScalarNode is never called. Store the contained
string in BumpPtrAllocated memory instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237614 91177308-0d34-0410-b5e6-96231b3b80d8
This was previously returning int. However there are no negative opcode
numbers and more importantly this was needlessly different from
MCInstrDesc::getOpcode() (which even is the value returned here) and
SDValue::getOpcode()/SDNode::getOpcode().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237611 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Allow hoisting of loads from values marked with dereferenceable_or_null
attribute. For values marked with the attribute perform
context-sensitive analysis to determine whether it's known-non-null or
not.
Patch by Artur Pilipenko!
Reviewers: hfinkel, sanjoy, reames
Reviewed By: reames
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9253
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237593 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This allows other passes (such as SLSR) to compute the SCEV expression for an
imaginary GEP.
Test Plan: no regression
Reviewers: atrick, sanjoy
Reviewed By: sanjoy
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9786
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237589 91177308-0d34-0410-b5e6-96231b3b80d8
At the present time, we don't have a way to represent general dependency
relationships, so everything is represented using memory dependency. In order
to preserve the data dependency of a READ_REGISTER on WRITE_REGISTER, we need
to model WRITE_REGISTER as writing (which we had been doing) and model
READ_REGISTER as reading (which we had not been doing). Fix this, and also the
way that the chain operands were generated at the SDAG level.
Patch by Nicholas Paul Johnson, thanks! Test case by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237584 91177308-0d34-0410-b5e6-96231b3b80d8
When dependence analysis encounters a non-constant distance between
memory accesses it aborts the analysis and falls back to run-time checks
only. In this case we weren't resetting the array of dependences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237574 91177308-0d34-0410-b5e6-96231b3b80d8
DenseMap has great support for catching invalidated iterators now so we can get
rid of this crude hack. Use after frees are covered by asan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237523 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
But still handle them the same way since I don't know how they differ on
this target.
Of these, 'o' and 'v' are not tested but were already implemented.
I'm not sure why 'i' is required for X86 since it's supposed to be an
immediate constraint rather than a memory constraint. A test asserts
without it so I've included it for now.
No functional change intended.
Reviewers: nadav
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8254
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237517 91177308-0d34-0410-b5e6-96231b3b80d8
This patch adds support for the following new instructions in the
Power ISA 2.07:
vpksdss
vpksdus
vpkudus
vpkudum
vupkhsw
vupklsw
These instructions are available through the vec_packs, vec_packsu,
vec_unpackh, and vec_unpackl built-in interfaces. These are
lane-sensitive instructions, so the built-ins have different
implementations for big- and little-endian, and the instructions must
be marked as killing the vector swap optimization for now.
The first three instructions perform saturating pack operations. The
fourth performs a modulo pack operation, which means it can be
represented with a vector shuffle, and conversely the appropriate
vector shuffles may cause this instruction to be generated. The other
instructions are only generated via built-in support for now.
Appropriate tests have been added.
There is a companion patch to clang for the rest of this support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237499 91177308-0d34-0410-b5e6-96231b3b80d8
Transition one API from `MCSymbolData` to `MCSymbol`. The function
needs both, and the backpointer from `MCSymbolData` to `MCSymbol` is
going away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237498 91177308-0d34-0410-b5e6-96231b3b80d8
Change `MCFragment::Atom` from an `MCSymbolData` to an `MCSymbol`,
moving in the direction of removing the back-pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237497 91177308-0d34-0410-b5e6-96231b3b80d8
Instead of storing a list of the `MCSymbolData` in use, store the
`MCSymbol`s. Churning in the direction of removing the back pointer
from `MCSymbolData`.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237496 91177308-0d34-0410-b5e6-96231b3b80d8
Turn `MCSymbolData` into a field inside of `MCSymbol`. Keep all the old
API alive for now, so that consumers can be updated in a later commit.
This means we still temporarily need the back pointer from
`MCSymbolData` to `MCSymbol`, but I'll remove it in a follow-up.
This optimizes for object emission over assembly emission. By removing
the `DenseMap` in `MCAssembler`, llc memory usage drops from around 1040
MB to 1001 MB (3.8%).
(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237490 91177308-0d34-0410-b5e6-96231b3b80d8
Instead of an intrusive double-linked linked list, use a
`std::vector<>`. This saves a pointer per symbol and simplifies
`MCSymbolData`. Otherwise, no functionality change here.
While I measured a memory drop from around 1047MB to 1040MB (0.6%) --
and this is a decent cleanup in its own right -- it's primarily a
preparation patch for merging `MCSymbol` and `MCSymbolData`. I'll post
an updated patch for that to the list in a moment.
(I'm looking at `llc` memory usage on `verify-uselistorder.lto.opt.bc`;
see r236629 for details.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237487 91177308-0d34-0410-b5e6-96231b3b80d8
Stop exposing the storage for `MCAssembler::Symbols`, and have
`MCAssembler` add symbols directly to its list instead of using a hook
in `MCSymbolData`. This opens up room for a follow-up commit to switch
from a linked list to a vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237486 91177308-0d34-0410-b5e6-96231b3b80d8
MCInstrDesc.h includes things like MCInst.h which i can now remove after this. That will be a future commit.
Reviewed by Jim Grosbach.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237478 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This is a pass for speculative execution of instructions for simple if-then (triangle) control flow. It's aimed at GPUs, but could perhaps be used in other contexts. Enabling this pass gives us a 1.0% geomean improvement on Google benchmark suites, with one benchmark improving 33%.
Credit goes to Jingyue Wu for writing an earlier version of this pass.
Patched by Bjarke Roune.
Test Plan:
This patch adds a set of tests in test/Transforms/SpeculativeExecution/spec.ll
The pass is controlled by a flag which defaults to having the pass not run.
Reviewers: eliben, dberlin, meheff, jingyue, hfinkel
Reviewed By: jingyue, hfinkel
Subscribers: majnemer, jholewinski, llvm-commits
Differential Revision: http://reviews.llvm.org/D9360
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237459 91177308-0d34-0410-b5e6-96231b3b80d8
This teaches the min/max idiom detector in ValueTracking to see through
casts such as SExt/ZExt/Trunc. SCEV can already do this, so we're bringing
non-SCEV analyses up to the same level.
The returned LHS/RHS will not match the type of the original SelectInst
any more, so a CastOp is returned too to inform the caller how to
convert to the SelectInst's type.
No in-tree users yet; this will be used by InstCombine in a followup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237452 91177308-0d34-0410-b5e6-96231b3b80d8
This adds new SDNodes for signed/unsigned min/max. These nodes are built from
select/icmp pairs matched at SDAGBuilder stage.
This patch adds the nodes, as well as legalization support and sets them to
be "expand" for all targets.
NFC for now; this will be tested when I switch AArch64 to using these new
nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237423 91177308-0d34-0410-b5e6-96231b3b80d8
Instead of doing that, create a temporary copy of MCTargetOptions and reset its
SanitizeAddress field based on the function's attribute every time an InlineAsm
instruction is emitted in AsmPrinter::EmitInlineAsm.
This is part of the work to remove TargetMachine::resetTargetOptions (the FIXME
added to TargetMachine.cpp in r236009 explains why this function has to be
removed).
Differential Revision: http://reviews.llvm.org/D9570
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237412 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Extract method haveNoCommonBitsSet so that we don't have to duplicate this logic in
InstCombine and SeparateConstOffsetFromGEP.
This patch also makes SeparateConstOffsetFromGEP more precise by passing
DominatorTree to computeKnownBits.
Test Plan: value-tracking-domtree.ll that tests ValueTracking indeed leverages dominating conditions
Reviewers: broune, meheff, majnemer
Reviewed By: majnemer
Subscribers: jholewinski, llvm-commits
Differential Revision: http://reviews.llvm.org/D9734
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237407 91177308-0d34-0410-b5e6-96231b3b80d8
This commit gives the users of the YAML Traits I/O library
the ability to serialize scalars using the YAML literal block
scalar notation by allowing them to implement a specialization
of the `BlockScalarTraits` struct for their custom types.
Reviewers: Duncan P. N. Exon Smith
Differential Revision: http://reviews.llvm.org/D9613
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237404 91177308-0d34-0410-b5e6-96231b3b80d8
