Summary:
Implements AsmWriter support for printing the module summary index to
assembly with the format discussed in the RFC "LLVM Assembly format for
ThinLTO Summary".
Implements just enough of the parsing support to recognize and ignore
the summary entries. As agreed in the RFC thread, this will be the
behavior when assembling the IR. A follow on change will implement
parsing/assembling of the summary entries for use by tools that
currently build the summary index from bitcode.
Reviewers: dexonsmith, pcc
Subscribers: inglorion, eraman, steven_wu, dblaikie, llvm-commits
Differential Revision: https://reviews.llvm.org/D46699
llvm-svn: 333335
Summary:
This class maintains the same logic as the original RetireControlUnit.
This is just an intermediate patch to make the RCU a Stage. Future patches will remove the dependency on the DispatchStage, and then more properly populate the pre/execute/post Stage interface.
Reviewers: andreadb, RKSimon, courbet
Reviewed By: andreadb, courbet
Subscribers: javed.absar, mgorny, tschuett, gbedwell, llvm-commits
Differential Revision: https://reviews.llvm.org/D47244
llvm-svn: 333292
Setting the "Debug Info Version" module flag makes it possible to pipe
synthetic debug info into llc, which is useful for testing backends.
llvm-svn: 333237
Before printing the block reciprocal throughput, ensure that the floating point
number is always rounded the same way on every target.
No functional change intended.
llvm-svn: 333210
This commit adds a color category so tools can document this option and
enables it for dwarfdump and dsymuttil.
rdar://problem/40498996
llvm-svn: 333176
This is a small follow-up to the revisions r333117 and r331663.
1. Avoid the name conflicts of the generated variables for prefixes.
2. Apply clang-format -i -style=llvm to llvm-objcopy.cpp once again.
3. Add a test for the flag with double dash.
Test plan: make check-all
llvm-svn: 333120
This patch implements the "block reciprocal throughput" computation in the
SummaryView.
The block reciprocal throughput is computed as the MAX of:
- NumMicroOps / DispatchWidth
- Resource Cycles / #Units (for every resource consumed).
The block throughput is bounded from above by the hardware dispatch throughput.
That is because the DispatchWidth is an upper bound on how many opcodes can be part
of a single dispatch group.
The block throughput is also limited by the amount of hardware parallelism. The
number of available resource units affects how the resource pressure is
distributed, and also how many blocks can be delivered every cycle.
llvm-svn: 333095
Summary:
This is an intermediate change, it moves the non-notification logic from
Backend::notifyCycleBegin to runCycle().
Once the scheduler becomes part of the Execution stage
the explicit call to Scheduler::cycleEvent will disappear.
The logic for Dispatch::cycleEvent() can be in
the preExecute phase, which this patch addresses.
Reviewers: andreadb, RKSimon, courbet
Reviewed By: andreadb
Subscribers: tschuett, gbedwell, llvm-commits
Differential Revision: https://reviews.llvm.org/D47213
llvm-svn: 333029
If one runs llvm-objcopy --strip-all --keep-symbol foo
and the symbol table indeed contains the symbol "foo"
then it should not be removed.
Test plan: make check-all
Differential revision: https://reviews.llvm.org/D47052
llvm-svn: 333008
Summary: This makes the report much more readable.
Reviewers: gchatelet
Subscribers: tschuett, mgrang, craig.topper, RKSimon, llvm-commits
Differential Revision: https://reviews.llvm.org/D47189
llvm-svn: 332979
Also clean up a couple of hacks where we were writing the section
contents to another stream by setting the object writer's stream,
writing and setting it back.
Part of PR37466.
Differential Revision: https://reviews.llvm.org/D47038
llvm-svn: 332858
Summary: Add LLVMDIBuilderCreateObjCIVar, LLVMDIBuilderCreateObjCProperty, and LLVMDIBuilderCreateInheritance to allow declaring metadata for Objective-C class hierarchies and their associated properties and instance variables.
Reviewers: whitequark, deadalnix
Reviewed By: whitequark
Subscribers: harlanhaskins, llvm-commits
Differential Revision: https://reviews.llvm.org/D47123
llvm-svn: 332850
Change the "recoverable" error callback to take an Error instaed of a
string.
Reviewed by: JDevlieghere
Differential Revision: https://reviews.llvm.org/D46831
llvm-svn: 332845
Summary: Add wrappers for a module's alias iterators and a getter and setter for the aliasee value.
Reviewers: whitequark, deadalnix
Reviewed By: whitequark
Subscribers: llvm-commits, harlanhaskins
Differential Revision: https://reviews.llvm.org/D46808
llvm-svn: 332826
Summary:
- Provide LLVMGetValueName2 and LLVMSetValueName2 that return and take the length of the provided C string respectively
- Deprecate LLVMGetValueName and LLVMSetValueName
Reviewers: whitequark, deadalnix
Reviewed By: whitequark
Subscribers: llvm-commits, harlanhaskins
Differential Revision: https://reviews.llvm.org/D46890
llvm-svn: 332810
Provide some free functions to reduce verbosity of endian-writing
a single value, and replace the endianness template parameter with
a field.
Part of PR37466.
Differential Revision: https://reviews.llvm.org/D47032
llvm-svn: 332757
The idea is that a client that wants split dwarf would create a
specific kind of object writer that creates two files, and use it to
create the streamer.
Part of PR37466.
Differential Revision: https://reviews.llvm.org/D47050
llvm-svn: 332749
Summary:
The logic of dispatch remains the same, but now DispatchUnit is a Stage (DispatchStage).
This change has the benefit of simplifying the backend runCycle() code.
The same logic applies, but it belongs to different components now. This is just a start,
eventually we will need to remove the call to the DispatchStage in Scheduler.cpp, but
that will be a separate patch. This change is mostly a renaming and moving of existing logic.
This change also encouraged me to remove the Subtarget (STI) member from the
Backend class. That member was used to initialize the other members of Backend
and to eventually call DispatchUnit::dispatch(). Now that we have Stages, we
can eliminate this by instantiating the DispatchStage with everything it needs
at the time of construction (e.g., Subtarget). That change allows us to call
DispatchStage::execute(IR) as we expect to call execute() for all other stages.
Once we add the Stage list (D46907) we can more cleanly call preExecute() on
all of the stages, DispatchStage, will probably wrap cycleEvent() in that
case.
Made some formatting and minor cleanups to README.txt. Some of the text
was re-flowed to stay within 80 cols.
Reviewers: andreadb, courbet, RKSimon
Reviewed By: andreadb, courbet
Subscribers: mgorny, javed.absar, tschuett, gbedwell, llvm-commits
Differential Revision: https://reviews.llvm.org/D46983
llvm-svn: 332652
Currently debugify prints it's output to stdout,
with this patch all the output generated goes to stderr.
This change lets us use debugify without taking away
the ability to pipe the output to other llvm tools.
llvm-svn: 332642
Summary:
Warn on instructions that should have the same performance
characteristics according to the sched model but actually
differ in their benchmarks.
Next step: Make the display nicer to browse, I was thinking maybe html.
Reviewers: gchatelet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D46945
llvm-svn: 332601
Restructuring the code to measure latency and uops.
The end goal is to have this program spawn another process to deal with SIGILL and other malformed programs. It is not yet the case in this redesign, it is still the main program that runs the code (and may crash).
It now uses BitVector instead of Graph for performance reasons.
https://reviews.llvm.org/D46821
(with fixed ARM tests)
Authored by Guillaume Chatelet
llvm-svn: 332592
Paul Semel