Commit Graph

171 Commits

Author SHA1 Message Date
Matt Arsenault 57bd64ff84 Support addrspacecast initializers with isNoopAddrSpaceCast
Moves isNoopAddrSpaceCast to the TargetMachine. It logically belongs
with the DataLayout.
2020-07-31 10:42:43 -04:00
Simon Pilgrim 04d32d7ac1 X86TargetMachine.h - remove unnecessary X86Subtarget forward declaration. NFC.
We have to include X86Subtarget.h.
2020-05-24 10:52:23 +01:00
Simon Pilgrim 09ba6f9e69 X86TargetMachine.h - remove unused X86RegisterBankInfo forward declaration. NFC. 2020-04-22 14:01:51 +01:00
Xiang1 Zhang 01a32f2bd3 Enable IBT(Indirect Branch Tracking) in JIT with CET(Control-flow Enforcement Technology)
Do not commit the llvm/test/ExecutionEngine/MCJIT/cet-code-model-lager.ll because it will
cause build bot fail(not suitable for window 32 target).

Summary:
This patch comes from H.J.'s 2bd54ce7fa

**This patch fix the failed llvm unit tests which running on CET machine. **(e.g. ExecutionEngine/MCJIT/MCJITTests)

The reason we enable IBT at "JIT compiled with CET" is mainly that:  the JIT don't know the its caller program is CET enable or not.
If JIT's caller program is non-CET, it is no problem JIT generate CET code or not.
But if JIT's caller program is CET enabled,  JIT must generate CET code or it will cause Control protection exceptions.

I have test the patch at llvm-unit-test and llvm-test-suite at CET machine. It passed.
and H.J. also test it at building and running VNCserver(Virtual Network Console), it works too.
(if not apply this patch, VNCserver will crash at CET machine.)

Reviewers: hjl.tools, craig.topper, LuoYuanke, annita.zhang, pengfei

Reviewed By: LuoYuanke

Subscribers: tstellar, efriedma, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76900
2020-04-07 09:48:47 +08:00
Hans Wennborg 64c2312750 Revert 43f031d312 "Enable IBT(Indirect Branch Tracking) in JIT with CET(Control-flow Enforcement Technology)"
ExecutionEngine/MCJIT/cet-code-model-lager.ll is failing on 32-bit
windows, see llvm-commits thread for fef2dab.

This reverts commit 43f031d312
and the follow-ups fef2dab100 and
6a800f6f62.
2020-04-06 15:05:25 +02:00
Xiang1 Zhang 43f031d312 Enable IBT(Indirect Branch Tracking) in JIT with CET(Control-flow Enforcement Technology)
Summary:
This patch comes from H.J.'s 2bd54ce7fa

**This patch fix the failed llvm unit tests which running on CET machine. **(e.g. ExecutionEngine/MCJIT/MCJITTests)

The reason we enable IBT at "JIT compiled with CET" is mainly that:  the JIT don't know the its caller program is CET enable or not.
If JIT's caller program is non-CET, it is no problem JIT generate CET code or not.
But if JIT's caller program is CET enabled,  JIT must generate CET code or it will cause Control protection exceptions.

I have test the patch at llvm-unit-test and llvm-test-suite at CET machine. It passed.
and H.J. also test it at building and running VNCserver(Virtual Network Console), it works too.
(if not apply this patch, VNCserver will crash at CET machine.)

Reviewers: hjl.tools, craig.topper, LuoYuanke, annita.zhang, pengfei

Subscribers: tstellar, efriedma, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76900
2020-04-03 11:44:07 +08:00
Reid Kleckner 904cd3e06b Prune a LegacyDivergenceAnalysis and MachineLoopInfo include each
Now X86ISelLowering doesn't depend on many IR analyses.

llvm-svn: 375320
2019-10-19 01:31:09 +00:00
Amy Huang 68eae49859 Add AutoUpgrade function to add new address space datalayout string to existing datalayouts.
Summary:
Add function to AutoUpgrade to change the datalayout of old X86 datalayout strings.
This adds "-p270:32:32-p271:32:32-p272:64:64" to X86 datalayouts that are otherwise valid
and don't already contain it.

This also removes the compatibility changes in https://reviews.llvm.org/D66843.
Datalayout change in https://reviews.llvm.org/D64931.

Reviewers: rnk, echristo

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67631

llvm-svn: 372267
2019-09-18 22:15:58 +00:00
Amy Huang 7b1d793713 Reland "Change the X86 datalayout to add three address spaces
for 32 bit signed, 32 bit unsigned, and 64 bit pointers."
This reverts 57076d3199.

Original review at https://reviews.llvm.org/D64931.
Review for added fix at https://reviews.llvm.org/D66843.

llvm-svn: 371568
2019-09-10 23:15:38 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Francis Visoiu Mistrih 0e237d357e [X86] Re-enable the machine verifier after fixing more tests
Was disabled again in r345528. Hopefully this the bots.

llvm-svn: 345593
2018-10-30 12:20:17 +00:00
Simon Pilgrim 090a444cb7 [X86] Set isMachineVerifierClean() back to false (PR27481)
Put back the isMachineVerifierClean() override removed at rL345513 to fix Windows ThinLTO tests

llvm-svn: 345528
2018-10-29 19:51:52 +00:00
Francis Visoiu Mistrih 61c9de7565 [X86] Enable the MachineVerifier by default
The machine verifier was disabled for x86 by default. There are now only
9 tests failing, compared to what previously was between 20 and 30.

This is a good opportunity to file bugs for all the remaining issues,
then explicitly disable the failing tests and enabling the machine
verifier by default.

This allows us to avoid adding new tests that break the verifier.

PR27481

llvm-svn: 345513
2018-10-29 16:57:43 +00:00
Sanjoy Das 26d11ca4b0 (Re-landing) Expose a TargetMachine::getTargetTransformInfo function
Re-land r321234.  It had to be reverted because it broke the shared
library build.  The shared library build broke because there was a
missing LLVMBuild dependency from lib/Passes (which calls
TargetMachine::getTargetIRAnalysis) to lib/Target.  As far as I can
tell, this problem was always there but was somehow masked
before (perhaps because TargetMachine::getTargetIRAnalysis was a
virtual function).

Original commit message:

This makes the TargetMachine interface a bit simpler.  We still need
the std::function in TargetIRAnalysis to avoid having to add a
dependency from Analysis to Target.

See discussion:
http://lists.llvm.org/pipermail/llvm-dev/2017-December/119749.html

I avoided adding all of the backend owners to this review since the
change is simple, but let me know if you feel differently about this.

Reviewers: echristo, MatzeB, hfinkel

Reviewed By: hfinkel

Subscribers: jholewinski, jfb, arsenm, dschuff, mcrosier, sdardis, nemanjai, nhaehnle, javed.absar, sbc100, jgravelle-google, aheejin, kbarton, llvm-commits

Differential Revision: https://reviews.llvm.org/D41464

llvm-svn: 321375
2017-12-22 18:21:59 +00:00
Sanjoy Das 747d1114d6 Revert "Expose a TargetMachine::getTargetTransformInfo function"
This reverts commit r321234.  It breaks the -DBUILD_SHARED_LIBS=ON build.

llvm-svn: 321243
2017-12-21 02:34:39 +00:00
Sanjoy Das 0c3de350b4 Expose a TargetMachine::getTargetTransformInfo function
Summary:
This makes the TargetMachine interface a bit simpler.  We still need
the std::function in TargetIRAnalysis to avoid having to add a
dependency from Analysis to Target.

See discussion:
http://lists.llvm.org/pipermail/llvm-dev/2017-December/119749.html

I avoided adding all of the backend owners to this review since the
change is simple, but let me know if you feel differently about this.

Reviewers: echristo, MatzeB, hfinkel

Reviewed By: hfinkel

Subscribers: jholewinski, jfb, arsenm, dschuff, mcrosier, sdardis, nemanjai, nhaehnle, javed.absar, sbc100, jgravelle-google, aheejin, kbarton, llvm-commits

Differential Revision: https://reviews.llvm.org/D41464

llvm-svn: 321234
2017-12-21 01:06:58 +00:00
Matthias Braun bb8507e63c Revert "TargetMachine: Merge TargetMachine and LLVMTargetMachine"
Reverting to investigate layering effects of MCJIT not linking
libCodeGen but using TargetMachine::getNameWithPrefix() breaking the
lldb bots.

This reverts commit r315633.

llvm-svn: 315637
2017-10-12 22:57:28 +00:00
Matthias Braun 3a9c114b24 TargetMachine: Merge TargetMachine and LLVMTargetMachine
Merge LLVMTargetMachine into TargetMachine.

- There is no in-tree target anymore that just implements TargetMachine
  but not LLVMTargetMachine.
- It should still be possible to stub out all the various functions in
  case a target does not want to use lib/CodeGen
- This simplifies the code and avoids methods ending up in the wrong
  interface.

Differential Revision: https://reviews.llvm.org/D38489

llvm-svn: 315633
2017-10-12 22:28:54 +00:00
Rafael Espindola 79e238afee Delete Default and JITDefault code models
IMHO it is an antipattern to have a enum value that is Default.

At any given piece of code it is not clear if we have to handle
Default or if has already been mapped to a concrete value. In this
case in particular, only the target can do the mapping and it is nice
to make sure it is always done.

This deletes the two default enum values of CodeModel and uses an
explicit Optional<CodeModel> when it is possible that it is
unspecified.

llvm-svn: 309911
2017-08-03 02:16:21 +00:00
Eric Christopher 97ae58686f Update the comments on default subtargets based on feedback.
llvm-svn: 309041
2017-07-25 22:21:08 +00:00
Eric Christopher 4e332c7cf1 Add a set of comments explaining why getSubtargetImpl() is deleted on these targets.
llvm-svn: 307999
2017-07-14 04:33:43 +00:00
Eric Christopher b4fb256574 Make 0 argument getSubtargetImpl functions for the X86, AArch64, and PPC targets deleted so that no one is tempted to use them.
llvm-svn: 306864
2017-06-30 19:49:05 +00:00
Matthias Braun d6a36ae282 TargetMachine: Indicate whether machine verifier passes.
This adds a callback to the LLVMTargetMachine that lets target indicate
that they do not pass the machine verifier checks in all cases yet.

This is intended to be a temporary measure while the targets are fixed
allowing us to enable the machine verifier by default with
EXPENSIVE_CHECKS enabled!

Differential Revision: https://reviews.llvm.org/D33696

llvm-svn: 304320
2017-05-31 18:41:23 +00:00
Daniel Sanders 0b5293f6ae [globalisel][tablegen] Move <Target>InstructionSelector declarations to anonymous namespaces
Summary: This resolves the issue of tablegen-erated includes in the headers for non-GlobalISel builds in a simpler way than before.

Reviewers: qcolombet, ab

Reviewed By: ab

Subscribers: igorb, ab, mgorny, dberris, rovka, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D30998

llvm-svn: 299637
2017-04-06 09:49:34 +00:00
Eugene Zelenko fbd13c5c12 [X86] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).
llvm-svn: 293949
2017-02-02 22:55:55 +00:00
Eric Christopher 5653e5dffc Remove the default subtarget from the x86 port as it isn't necessary (or
correct) anymore.

llvm-svn: 282031
2016-09-20 22:19:33 +00:00
Rafael Espindola 8c34dd8257 Delete Reloc::Default.
Having an enum member named Default is quite confusing: Is it distinct
from the others?

This patch removes that member and instead uses Optional<Reloc> in
places where we have a user input that still hasn't been maped to the
default value, which is now clear has no be one of the remaining 3
options.

llvm-svn: 269988
2016-05-18 22:04:49 +00:00
Alexander Kornienko f00654e31b Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)
Apparently, the style needs to be agreed upon first.

llvm-svn: 240390
2015-06-23 09:49:53 +00:00
Alexander Kornienko 70bc5f1398 Fixed/added namespace ending comments using clang-tidy. NFC
The patch is generated using this command:

tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
  -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
  llvm/lib/


Thanks to Eugene Kosov for the original patch!

llvm-svn: 240137
2015-06-19 15:57:42 +00:00
Daniel Sanders 3e5de88dac Replace string GNU Triples with llvm::Triple in TargetMachine. NFC.
Summary:
For the moment, TargetMachine::getTargetTriple() still returns a StringRef.

This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: ted, llvm-commits, rengolin, jholewinski

Differential Revision: http://reviews.llvm.org/D10362

llvm-svn: 239554
2015-06-11 19:41:26 +00:00
Eric Christopher c5a85af3b2 Cache the Function dependent subtarget on the MachineFunction.
As preparation for removing the getSubtargetImpl() call from
TargetMachine go ahead and flip the switch on caching the function
dependent subtarget and remove the bare getSubtargetImpl call
from the X86 port. As part of this add a few tests that show we
can generate code and assemble on X86 based on features/cpu on
the Function.

llvm-svn: 232879
2015-03-21 03:13:10 +00:00
Mehdi Amini 93e1ea167e Move the DataLayout to the generic TargetMachine, making it mandatory.
Summary:
I don't know why every singled backend had to redeclare its own DataLayout.
There was a virtual getDataLayout() on the common base TargetMachine, the
default implementation returned nullptr. It was not clear from this that
we could assume at call site that a DataLayout will be available with
each Target.

Now getDataLayout() is no longer virtual and return a pointer to the
DataLayout member of the common base TargetMachine. I plan to turn it into
a reference in a future patch.

The only backend that didn't have a DataLayout previsouly was the CPPBackend.
It now initializes the default DataLayout. This commit is NFC for all the
other backends.

Test Plan: clang+llvm ninja check-all

Reviewers: echristo

Subscribers: jfb, jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D8243

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 231987
2015-03-12 00:07:24 +00:00
Chandler Carruth 8b04c0d26a [multiversion] Switch all of the targets over to use the
TargetIRAnalysis access path directly rather than implementing getTTI.

This even removes getTTI from the interface. It's more efficient for
each target to just register a precise callback that creates their
specific TTI.

As part of this, all of the targets which are building their subtargets
individually per-function now build their TTI instance with the function
and thus look up the correct subtarget and cache it. NVPTX, R600, and
XCore currently don't leverage this functionality, but its trivial for
them to add it now.

llvm-svn: 227735
2015-02-01 13:20:00 +00:00
Chandler Carruth 93dcdc47db [PM] Switch the TargetMachine interface from accepting a pass manager
base which it adds a single analysis pass to, to instead return the type
erased TargetTransformInfo object constructed for that TargetMachine.

This removes all of the pass variants for TTI. There is now a single TTI
*pass* in the Analysis layer. All of the Analysis <-> Target
communication is through the TTI's type erased interface itself. While
the diff is large here, it is nothing more that code motion to make
types available in a header file for use in a different source file
within each target.

I've tried to keep all the doxygen comments and file boilerplate in line
with this move, but let me know if I missed anything.

With this in place, the next step to making TTI work with the new pass
manager is to introduce a really simple new-style analysis that produces
a TTI object via a callback into this routine on the target machine.
Once we have that, we'll have the building blocks necessary to accept
a function argument as well.

llvm-svn: 227685
2015-01-31 11:17:59 +00:00
Eric Christopher 8b7706517c Move DataLayout back to the TargetMachine from TargetSubtargetInfo
derived classes.

Since global data alignment, layout, and mangling is often based on the
DataLayout, move it to the TargetMachine. This ensures that global
data is going to be layed out and mangled consistently if the subtarget
changes on a per function basis. Prior to this all targets(*) have
had subtarget dependent code moved out and onto the TargetMachine.

*One target hasn't been migrated as part of this change: R600. The
R600 port has, as a subtarget feature, the size of pointers and
this affects global data layout. I've currently hacked in a FIXME
to enable progress, but the port needs to be updated to either pass
the 64-bitness to the TargetMachine, or fix the DataLayout to
avoid subtarget dependent features.

llvm-svn: 227113
2015-01-26 19:03:15 +00:00
Reid Kleckner 357600eab5 Add out of line virtual destructors to all LLVMTargetMachine subclasses
These recently all grew a unique_ptr<TargetLoweringObjectFile> member in
r221878.  When anyone calls a virtual method of a class, clang-cl
requires all virtual methods to be semantically valid. This includes the
implicit virtual destructor, which triggers instantiation of the
unique_ptr destructor, which fails because the type being deleted is
incomplete.

This is just part of the ongoing saga of PR20337, which is affecting
Blink as well. Because the MSVC ABI doesn't have key functions, we end
up referencing the vtable and implicit destructor on any virtual call
through a class. We don't actually end up emitting the dtor, so it'd be
good if we could avoid this unneeded type completion work.

llvm-svn: 222480
2014-11-20 23:37:18 +00:00
Aditya Nandakumar a27193297f This patch changes the ownership of TLOF from TargetLoweringBase to TargetMachine so that different subtargets could share the TLOF effectively
llvm-svn: 221878
2014-11-13 09:26:31 +00:00
Eric Christopher 3faf2f1e02 Add subtarget caches to aarch64, arm, ppc, and x86.
These will make it easier to test further changes to the
code generation and optimization pipelines as those are
moved to subtargets initialized with target feature and
target cpu.

llvm-svn: 219106
2014-10-06 06:45:36 +00:00
Aaron Ballman 0bb041b5f4 Reverting NFC changes from r218050. Instead, the warning was disabled for GCC in r218059, so these changes are no longer required.
llvm-svn: 218062
2014-09-18 17:34:23 +00:00
Aaron Ballman 11fa97fa32 Fixing a bunch of -Woverloaded-virtual warnings due to hiding getSubtargetImpl from the base class. NFC.
llvm-svn: 218050
2014-09-18 13:27:14 +00:00
Eric Christopher 79cc1e3ae7 Reinstate "Nuke the old JIT."
Approved by Jim Grosbach, Lang Hames, Rafael Espindola.

This reinstates commits r215111, 215115, 215116, 215117, 215136.

llvm-svn: 216982
2014-09-02 22:28:02 +00:00
Benjamin Kramer a7c40ef022 Canonicalize header guards into a common format.
Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)

Changes made by clang-tidy with minor tweaks.

llvm-svn: 215558
2014-08-13 16:26:38 +00:00
Eric Christopher b9fd9ed37e Temporarily Revert "Nuke the old JIT." as it's not quite ready to
be deleted. This will be reapplied as soon as possible and before
the 3.6 branch date at any rate.

Approved by Jim Grosbach, Lang Hames, Rafael Espindola.

This reverts commits r215111, 215115, 215116, 215117, 215136.

llvm-svn: 215154
2014-08-07 22:02:54 +00:00
Rafael Espindola f8b27c41e8 Nuke the old JIT.
I am sure we will be finding bits and pieces of dead code for years to
come, but this is a good start.

Thanks to Lang Hames for making MCJIT a good replacement!

llvm-svn: 215111
2014-08-07 14:21:18 +00:00
Rafael Espindola b8141d55b9 Remove a virtual function from TargetMachine. NFC.
llvm-svn: 214929
2014-08-05 22:10:21 +00:00
Eric Christopher d913448b38 Remove the TargetMachine forwards for TargetSubtargetInfo based
information and update all callers. No functional change.

llvm-svn: 214781
2014-08-04 21:25:23 +00:00
Eric Christopher 6c05d9135f Add a non-const subtarget returning function to the target machine
so that we can use it to get the old-style JIT out of the subtarget.

This code should be removed when the old-style JIT is removed
(imminently).

llvm-svn: 214560
2014-08-01 21:18:01 +00:00
Eric Christopher 83e0723457 Remove extraneous includes from the target machines.
llvm-svn: 211800
2014-06-26 19:30:05 +00:00
Eric Christopher a08f30bd40 Move all of the x86 subtarget initialized variables down into the x86 subtarget
from the x86 target machine. Should be no functional change.

llvm-svn: 210479
2014-06-09 17:08:19 +00:00
Eric Christopher c22a04c063 Remove duplicate copy of InstrItineraryData from the TargetMachine,
it's already on the subtarget.

llvm-svn: 210289
2014-06-05 21:42:54 +00:00