Many of the MachO load commands can have data appended after the command structure. This data is frequently strings, but can actually be anything. This patch adds support for three optional fields on load command yaml descriptions.
The new PayloadString YAML field is populated with the data after load commands known to have strings as extra data.
The new ZeroPadBytes YAML field is a count of zero'd bytes after the end of the load command structure before the next command. This can apply anywhere in the file. MachO2YAML verifies that bytes are zero before populating this field, and YAML2MachO will add zero'd bytes.
The new PayloadBytes YAML field stores all bytes after the end of the load command structure before the next command if they are non-zero. This is a catch all for all unhandled bytes. If MachO2Yaml populates PayloadBytes it will not populate ZeroPadBytes, instead zero'd bytes will be in the PayloadBytes structure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270115 91177308-0d34-0410-b5e6-96231b3b80d8
A baby step toward translating DIType records to CodeView.
This does not (yet) combine the record length with the record data. I'm going back and forth trying to determine if that's a good idea.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270106 91177308-0d34-0410-b5e6-96231b3b80d8
InterleavedAccessPass is an IR-level pass, so this change will enable testing
it with opt. This is part of D20250.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270101 91177308-0d34-0410-b5e6-96231b3b80d8
getRegAsmName ends up making a copy of the register's name in order to
make a lower-case version of it. This is bad because
getRegForInlineAsmConstraint, it's sole caller, does a lowercase
comparison anyway.
This resulted in a significant regression in compile time for the Linux
kernel because getRegAsmName is called in a loop by
getRegForInlineAsmConstraint.
Instead, forgo the call to lower in getRegAsmName and have it return a
StringRef.
No functionality change is intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270099 91177308-0d34-0410-b5e6-96231b3b80d8
Remove a comment about not supporting LRVH/STRVH from the README
LRVH/STRVH are being generated as of r269688
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270092 91177308-0d34-0410-b5e6-96231b3b80d8
Previously, specifying -post-RA-scheduler=true had the side effect of
disabling the antidependency breaker, yielding different behavior than
if the post-RA-scheduler was enabled via the scheduling model.
Differential Revision: http://reviews.llvm.org/D20186
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It broke buildbot:
http://lab.llvm.org:8011/builders/clang-s390x-linux/builds/4817/steps/ninja%20check%201/logs/stdio
Actually it is just because D20273 not yet commited, but these 2 were crossing with each other,
and I`ll better find the way to land them separatelly soon.
Initial commit message:
[llvm-mc] - Teach llvm-mc to generate compressed debug sections in zlib style.
Before this patch llvm-mc generated zlib-gnu styled sections.
That means no SHF_COMPRESSED flag was set, magic 'zlib' signature
was used in combination with full size field. Sections were renamed to "*.z*".
This patch reimplements the compression style to zlib one as zlib-gnu looks
to be depricated everywhere.
Differential revision: http://reviews.llvm.org/D20331
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270075 91177308-0d34-0410-b5e6-96231b3b80d8
There are at least 2 places (DAGCombiner, X86ISelLowering) where this could be used instead
of ad-hoc and watered down code that is trying to match a power-of-2 pattern.
Differential Revision: http://reviews.llvm.org/D20439
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270073 91177308-0d34-0410-b5e6-96231b3b80d8
This patch changes the order in which we attempt to prove the independence of
strided accesses. We previously did this after we knew the dependence distance
was positive. With this change, we check for independence before handling the
negative distance case. The patch prevents LAA from reporting forward
dependences for independent strided accesses.
This change was requested in the review of D19984.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270072 91177308-0d34-0410-b5e6-96231b3b80d8
Before this patch llvm-mc generated zlib-gnu styled sections.
That means no SHF_COMPRESSED flag was set, magic 'zlib' signature
was used in combination with full size field. Sections were renamed to "*.z*".
This patch reimplements the compression style to zlib one as zlib-gnu looks
to be depricated everywhere.
Differential revision: http://reviews.llvm.org/D20331
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270070 91177308-0d34-0410-b5e6-96231b3b80d8
Mask0Imm and ~Mask1Imm must be equivalent and one of the MaskImms is a shifted
mask (e.g., 0x000ffff0). Both 'and's must have a single use.
This changes code like:
and w8, w0, #0xffff000f
and w9, w1, #0x0000fff0
orr w0, w9, w8
into
lsr w8, w1, #4
bfi w0, w8, #4, #12
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270063 91177308-0d34-0410-b5e6-96231b3b80d8
Fixes for MUBUF_Atomic instructions to make operand list valid:
- For RTN insns, make a copy of $vdata_in operand as $vdata.
- Do not add operand for GLC, it is hardcoded and comes as a token.
Workaround to avoid adding multiple default optional operands.
Tests added.
Differential Revision: http://reviews.llvm.org/D20257
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270049 91177308-0d34-0410-b5e6-96231b3b80d8
Enable "Remove Redundant LEAs" part of the LEA optimization pass for -O2.
This gives 6.4% performance improve on Broadwell on nnet benchmark from Coremark-pro.
There is no significant effect on other benchmarks (Geekbench, Spec2000, Spec2006).
Differential Revision: http://reviews.llvm.org/D19659
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270036 91177308-0d34-0410-b5e6-96231b3b80d8
Transition InstrProf and Coverage over to the stricter Error/Expected
interface.
Changes since the initial commit:
- Fix error message printing in llvm-profdata.
- Check errors in loadTestingFormat() + annotateAllFunctions().
- Defer error handling in InstrProfIterator to InstrProfReader.
- Remove the base ProfError class to work around an MSVC ICE.
Differential Revision: http://reviews.llvm.org/D19901
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270020 91177308-0d34-0410-b5e6-96231b3b80d8
Currently only its unit test uses it, but this will be used in a later
change to simplify some logic in the GuardWidening pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270018 91177308-0d34-0410-b5e6-96231b3b80d8
This refactoring is to reduce code duplication between the 32-bit and 64-bit code paths. This refactoring will also make the special casing for other data after load commands cleaner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270001 91177308-0d34-0410-b5e6-96231b3b80d8
