Summary:
Adds option -esan-aux-field-info to control generating binary with
auxiliary struct field information.
Extracts code for creating auxiliary information from
createCacheFragInfoGV into createCacheFragAuxGV.
Adds test struct_field_small.ll for -esan-aux-field-info test.
Reviewers: aizatsky
Subscribers: llvm-commits, bruening, eugenis, kcc, zhaoqin, vitalybuka
Differential Revision: http://reviews.llvm.org/D22019
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274726 91177308-0d34-0410-b5e6-96231b3b80d8
Follow-up from r274465: we don't need to capture the value in these cases,
so just match the constant that we're looking for. m_One/m_Zero work with
vector splats as well as scalars.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274670 91177308-0d34-0410-b5e6-96231b3b80d8
Added metadata to be able to make statistics on how many functions
that have been imported have been removed. Also module name might
be helpfull when debugging.
Reviewers: tejohnson, eraman
Subscribers: mehdi_amini, llvm-commits
Differential Revision: http://reviews.llvm.org/D21943
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274668 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Fixes an incorrect assert that fails on 128-bit-sized loads or stores.
Augments the wset tests to include this case.
Reviewers: aizatsky
Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits
Differential Revision: http://reviews.llvm.org/D22062
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274666 91177308-0d34-0410-b5e6-96231b3b80d8
The dse_with_dbg_value.ll test committed with r273141 is removed because this
we no longer performs any type of back tracking, which is what was causing the
codegen differences with and without debug information.
Differential Revision: http://reviews.llvm.org/D21613
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274660 91177308-0d34-0410-b5e6-96231b3b80d8
We were still crashing in the "no change" case because LVI was not
getting invalidated.
See the thread "Should analyses be able to hold AssertingVH to IR?
(related to PR28400)" for more discussion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274656 91177308-0d34-0410-b5e6-96231b3b80d8
We currently always vectorize induction variables. However, if an induction
variable is only used for counting loop iterations or computing addresses with
getelementptr instructions, we don't need to do this. Vectorizing these trivial
induction variables can create vector code that is difficult to simplify later
on. This is especially true when the unroll factor is greater than one, and we
create vector arithmetic when computing step vectors. With this patch, we check
if an induction variable is only used for counting iterations or computing
addresses, and if so, scalarize the arithmetic when computing step vectors
instead. This allows for greater simplification.
This patch addresses the suboptimal pointer arithmetic sequence seen in
PR27881.
Reference: https://llvm.org/bugs/show_bug.cgi?id=27881
Differential Revision: http://reviews.llvm.org/D21620
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274627 91177308-0d34-0410-b5e6-96231b3b80d8
StratifiedSets (as implemented) is very fast, but its accuracy is also
limited. If we take a more aggressive andersens-like approach, we can be
way more accurate, but we'll also end up being slower.
So, we've decided to split CFLAA into CFLSteensAA and CFLAndersAA.
Long-term, we want to end up in a place where CFLSteens is queried
first; if it can provide an answer, great (since queries are basically
map lookups). Otherwise, we'll fall back to CFLAnders, BasicAA, etc.
This patch splits everything out so we can try to do something like
that when we get a reasonable CFLAnders implementation.
Patch by Jia Chen.
Differential Revision: http://reviews.llvm.org/D21910
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274589 91177308-0d34-0410-b5e6-96231b3b80d8
PR28400 seems to be not an isolated issue, but a general problem related
to caching analyses. We will need to discuss on llvm-dev.
A test case is in the PR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274457 91177308-0d34-0410-b5e6-96231b3b80d8
This actually uncovered a surprisingly large chain of ultimately unused
TLI args.
From what I can gather, this argument is a remnant of when
isKnownNonNull would look at the TLI directly.
The current approach seems to be that InferFunctionAttrs runs early in
the pipeline and uses TLI to annotate the TLI-dependent non-null
information as return attributes.
This also removes the dependence of functionattrs on TLI altogether.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274455 91177308-0d34-0410-b5e6-96231b3b80d8
Fix incorrect calculation of the type size for __msan_maybe_warning_N
call that resulted in an invalid (narrowing) zext instruction and
"Assertion `castIsValid(op, S, Ty) && "Invalid cast!"' failed."
Only happens in very large functions (with more than 3500 MSan
checks) operating on integer types that are not power-of-two.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274395 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
GetBoundryInstruction returns the last instruction as the instruction which follows or end(). Otherwise the last instruction in the boundry set is not being tested by isVectorizable().
Partially solve reordering of instructions. More extensive solution to follow.
Reviewers: tstellarAMD, llvm-commits, jlebar
Subscribers: escha, arsenm, mzolotukhin
Differential Revision: http://reviews.llvm.org/D21934
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274389 91177308-0d34-0410-b5e6-96231b3b80d8
If OpB has an ADD NSW/NUW, we can use that to prove that adding 1
to OpA won't wrap if OpA + 1 == OpB.
Patch by Fiona Glaser
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274324 91177308-0d34-0410-b5e6-96231b3b80d8
If no alignment was set on the load/stores, it would vectorize
to the new type even though this increases the default alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274323 91177308-0d34-0410-b5e6-96231b3b80d8
This needs to use inttoptr/ptrtoint if combining an int and pointer
load. If a pointer is used always do an integer load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274321 91177308-0d34-0410-b5e6-96231b3b80d8
integer.
Fixes issues on some architectures where we use arithmetic ops to build
vectors, which can cause bad things to happen for loads/stores of mixed
types.
Patch by Fiona Glaser
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274307 91177308-0d34-0410-b5e6-96231b3b80d8
This pass hoists duplicated computations in the program. The primary goal of
gvn-hoist is to reduce the size of functions before inline heuristics to reduce
the total cost of function inlining.
Pass written by Sebastian Pop, Aditya Kumar, Xiaoyu Hu, and Brian Rzycki.
Important algorithmic contributions by Daniel Berlin under the form of reviews.
Differential Revision: http://reviews.llvm.org/D19338
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274305 91177308-0d34-0410-b5e6-96231b3b80d8
