method.
This enables the instprinter to print a different system register name based on
the feature bits of the per-function subtarget.
Differential Revision: http://reviews.llvm.org/D8668
llvm-svn: 233412
per-function subtarget.
Currently, code-gen passes the default or generic subtarget to the constructors
of MCInstPrinter subclasses (see LLVMTargetMachine::addPassesToEmitFile), which
enables some targets (AArch64, ARM, and X86) to change their instprinter's
behavior based on the subtarget feature bits. Since the backend can now use
different subtargets for each function, instprinter has to be changed to use the
per-function subtarget rather than the default subtarget.
This patch takes the first step towards enabling instprinter to change its
behavior based on the per-function subtarget. It adds a bit "PassSubtarget" to
AsmWriter which tells table-gen to pass a reference to MCSubtargetInfo to the
various print methods table-gen auto-generates.
I will follow up with changes to instprinters of AArch64, ARM, and X86.
llvm-svn: 233411
Tailcalls are only OK with forwarded sret pointers. With explicit sret,
one approximation is to check that the pointer isn't an Instruction, as
in that case it might point into some local memory (alloca). That's not
OK with tailcalls.
Explicit sret counterpart to r233409.
Differential Revison: http://reviews.llvm.org/D8510
llvm-svn: 233410
Tailcalls are only OK with forwarded sret pointers. With sret demotion,
they're not, as we'd have a pointer into a soon-to-be-dead stack frame.
Differential Revison: http://reviews.llvm.org/D8510
llvm-svn: 233409
This just didn't need to be here at all, but the assertion I tried to
add wasn't appropriate either - the circumstance isn't impossible, it's
just not important to deal with it here - the gep-rooted version of this
instcombine will handle this case, we don't need to duplicate it for the
case where the gep happens to be used in a bitcast.
llvm-svn: 233404
We make many redundant calls to isInterestingAlloca in the AddressSanitzier
pass. This is especially inefficient for allocas that have many uses. Let's
cache the results to speed up compilation.
The compile time improvements depend on the input. I did not see much
difference on benchmarks; however, I have a test case where compile time
goes from minutes to under a second.
llvm-svn: 233397
Expose bpf pseudo load instruction via intrinsic. It is used by front-ends that
can encode file descriptors directly into IR instead of relying on relocations.
llvm-svn: 233396
nodes.
When a node is terminal it is pushed at the end of the list of the copies to
coalesce instead of being completely ignored. In effect, this reduces its
priority over non-terminal nodes.
Because of that, we do not miss the rematerialization opportunities, nor the
copies that can be merged with more complex, than the terminal rule,
interference checks.
Related to PR22768.
llvm-svn: 233395
Change `LLParser` to require a non-null `scope:` field for both
`MDLocation` and `MDLocalVariable`. There's no need to wait for the
verifier for this check. This also allows their `::getImpl()` methods
to assert that the incoming scope is non-null.
llvm-svn: 233394
Check fields from `MDLocalVariable` and `MDGlobalVariable` and change
the accessors to downcast to the right types. `getType()` still returns
`Metadata*` since it could be an `MDString`-based reference.
Since local variables require non-null scopes, I also updated `LLParser`
to require a `scope:` field.
A number of testcases had grown bitrot and started failing with this
patch; I committed them separately in r233349. If I just broke your
out-of-tree testcases, you're probably hitting similar problems (so have
a look there).
llvm-svn: 233389
Subtarget features must not be a part of the target machine. So, they are now not being stored in SysRegMapper, but provided each time fromString()/toString() are called
Reviewers: jmolloy
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8655
llvm-svn: 233386
Added a new boolean CMake flag, LLVM_INSTALL_UTILS. When set,
the 'install' target will include in the bin directory the
utils binaries - e.g. FileCheck. This mirrors the autoconfig
behavior.
Test Plan:
Locally verified that utils binaries are copied when flag is set,
and not copied when flag is not set.
Reviewers: jfb, dschuff, beanz
Reviewed By: beanz
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8587
Patch by Mircea Trofin
llvm-svn: 233385
Dropping old debug format requires the entire module to be read upfront.
This was failing only with the gold plugin, but that is just because
llvm-link was not upgrading metadata.
The new testcase using llvm-link shows the problem.
llvm-svn: 233381
The last user of this code vanished with r223368, but this function still was
around being executed on every process start, allocating some memory and then
never being used again. No functional change.
Also avoids occasional complaints about the benign leak in this function, like
PR23037.
llvm-svn: 233371
This re-adds float2int to the tree, after fixing PR23038. It turns
out the argument to APSInt() is true-if-unsigned, rather than
true-if-signed :(. Added testcase and explanatory comment.
llvm-svn: 233370
"Fix the MachineScheduler's logic for updating ready times for in-order.
Now the scheduler updates a node's ready time as soon as it is
scheduled, before releasing dependent nodes."
This fix was only made in one variant of the ScheduleDAGMI driver.
Francois de Ferriere reported the issue in the other bit of code where
it was also needed.
I never got around to coming up with a test case, but it's an
obvious fix that shouldn't be delayed any longer.
I'll try to refactor this code a little better.
I did verify performance on a wide variety of targets and saw no
negative impact with this fix.
llvm-svn: 233366
Nick Lewycky