Summary:
Adds a new public interface routine __esan_report() which can be used to
request profiling results prior to abnormal termination (e.g., for a server
process killed by its parent where the normal exit does not allow for
normal result reporting).
Implements this for the working-set tool. The cache frag tool is left
unimplemented as it requires missing iteration capabilities.
Adds a new test.
Reviewers: aizatsky
Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits, kubabrecka
Differential Revision: http://reviews.llvm.org/D22098
llvm-svn: 274964
While here move simplifyLoop() function to the new header, as
suggested by Chandler in the review.
Differential Revision: http://reviews.llvm.org/D21404
llvm-svn: 274959
This removes a few fields from the graph builder by making us compute
things (that we'd always compute anyway) more eagerly.
Patch by Jia Chen.
Differential Revision: http://reviews.llvm.org/D22009
llvm-svn: 274957
Place the structure data into `cfstring`. This both isolates the structures to
permit coalescing in the future (by the linker) as well as ensures that it
doesnt get marked as read-only data. The structures themselves are not
read-only, only the string contents.
llvm-svn: 274956
Drive-by improvement: We would 1) add CSRs, 2) remove callee saved CSRs
and 3) add all CSRs again for the return block. Just adding CSRs once
obviously gives the same results.
llvm-svn: 274955
An identity COPY like this:
%AL = COPY %AL, %EAX<imp-def>
has no semantic effect, but encodes liveness information: Further users
of %EAX only depend on this instruction even though it does not define
the full register.
Replace the COPY with a KILL instruction in those cases to maintain this
liveness information. (This reverts a small part of r238588 but this
time adds a comment explaining why a KILL instruction is useful).
llvm-svn: 274952
We had some clients that had added old source paths remappings to their .lldbinit files and they were causing trouble at a later date. This fix should help mitigate these issues.
<rdar://problem/26358860>
llvm-svn: 274948
Summary:
This way the metadata will be only generated when asserts enabled,
or when -enable-import-metadata specified
FIXED missing colon on requires.
Reviewers: tejohnson, eraman, mehdi_amini
Subscribers: mehdi_amini, llvm-commits
Differential Revision: http://reviews.llvm.org/D22167
llvm-svn: 274947
Our assertions in WinCOFFStreamer had unexpected side effects resulting
in symbols getting unexpectedly marked as used.
This fixes PR28462.
llvm-svn: 274941
Summary:
This way the metadata will be only generated when asserts enabled,
or when -enable-import-metadata specified
Reviewers: tejohnson, eraman, mehdi_amini
Subscribers: mehdi_amini, llvm-commits
Differential Revision: http://reviews.llvm.org/D22167
llvm-svn: 274938
This is a follow-on to r274452.
The LAA with the new PM is a loop pass so we go from inner to outer loops.
Also using a CHECK-NOT didn't make much sense because we print something
in either case; whether an invariant is 'found' or 'not found'.
llvm-svn: 274935
Avoid implicit conversions from MachineInstrBundleIIterator to
MachineInstr* in the MSP430 backend by preferring MachineInstr& over
MachineInstr* when a pointer isn't nullable.
llvm-svn: 274933
This isn't a sure thing (are 2 extra bitcasts less expensive than a logic op?),
but we'll try to err on the conservative side by going with the case that has
less IR instructions.
Note: This question came up in http://reviews.llvm.org/D22114 , but this part is
independent of that patch proposal, so I'm making this small change ahead of that
one.
See also:
http://reviews.llvm.org/rL274926
llvm-svn: 274932
Avoid implicit conversions from MachineInstrBundleIterator to
MachineInstr* in the NVPTX backend, mainly by preferring MachineInstr&
over MachineInstr* when a pointer isn't nullable and using range-based
for loops.
There was one piece of questionable code in
NVPTXInstrInfo::AnalyzeBranch, where a condition checked a pointer
converted from an iterator for nullptr. Since this case is impossible
(moreover, the code above guarantees that the iterator is valid), I
removed the check when I changed the pointer to a reference.
Despite that case, there should be no functionality change here.
llvm-svn: 274931
Because isReallyTriviallyReMaterializableGeneric puts many limits on
rematerializable instructions, this fix can prevent instructions with
tied virtual operands and instructions with virtual register uses from
being kept in DeadRemat, so as to workaround the live interval consistency
problem for the dummy instructions kept in DeadRemat.
But we still need to fix the live interval consistency problem. This patch
is just a short time relieve. PR28464 has been filed as a reminder.
Differential Revision: http://reviews.llvm.org/D19486
llvm-svn: 274928
Avoid implicit conversions from MachineInstrBundleInstr to MachineInstr*
in the AArch64 backend, mainly by preferring MachineInstr& over
MachineInstr* when a pointer isn't nullable.
llvm-svn: 274924
Add OCL option -cl-no-signed-zeros to driver options.
Also added to opencl.cl testcases.
Patch by Aaron En Ye Shi.
Differential Revision: http://reviews.llvm.org/D22067
llvm-svn: 274923
Remove remaining implicit conversions from MachineInstrBundleIterator to
MachineInstr* from the ARM backend. In most cases, I made them less attractive
by preferring MachineInstr& or using a ranged-based for loop.
Once all the backends are fixed I'll make the operator explicit so that this
doesn't bitrot back.
llvm-svn: 274920
Ran clang-format to remove the namespace indentation, and stopped
repeating names in doc comments since I was updating every line
anyway.
llvm-svn: 274919
Summary: As we will move to use uniformed hotness check in inliner, we do not need inline hints in SampleProfile pass any more.
Reviewers: dnovillo, davidxl
Subscribers: eraman, llvm-commits
Differential Revision: http://reviews.llvm.org/D19287
llvm-svn: 274918
Craig Topper