Commit Graph

64 Commits

Author SHA1 Message Date
Craig Topper 11ef356d9e [TargetLowering] Use Align in allowsMisalignedMemoryAccesses.
Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D96097
2021-02-04 19:22:06 -08:00
Matt Arsenault 669bb3111f Mips: Don't store MachineFunction in MipsFunctionInfo
It will soon be disallowed to depend on MachineFunction state on
construction.
2020-06-30 16:08:51 -04:00
Craig Topper bb2553175a [TargetLowering][ARM][Mips][WebAssembly] Remove the ordered FP compare from RunttimeLibcalls.def and all associated usages
Summary:
This always just used the same libcall as unordered, but the comparison predicate was different. This change appears to have been made when targets were given the ability to override the predicates. Before that they were hardcoded into the type legalizer. At that time we never inverted predicates and we handled ugt/ult/uge/ule compares by emitting an unordered check ORed with a ogt/olt/oge/ole checks. So only ordered needed an inverted predicate. Later ugt/ult/uge/ule were optimized to only call a single libcall and invert the compare.

This patch removes the ordered entries and just uses the inverting logic that is now present. This removes some odd things in both the Mips and WebAssembly code.

Reviewers: efriedma, ABataev, uweigand, cameron.mcinally, kpn

Reviewed By: efriedma

Subscribers: dschuff, sdardis, sbc100, arichardson, jgravelle-google, kristof.beyls, hiraditya, aheejin, sunfish, atanasyan, Petar.Avramovic, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D72536
2020-01-10 19:30:08 -08:00
Daniel Sanders 0c47611131 Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM
Summary:
This clang-tidy check is looking for unsigned integer variables whose initializer
starts with an implicit cast from llvm::Register and changes the type of the
variable to llvm::Register (dropping the llvm:: where possible).

Partial reverts in:
X86FrameLowering.cpp - Some functions return unsigned and arguably should be MCRegister
X86FixupLEAs.cpp - Some functions return unsigned and arguably should be MCRegister
X86FrameLowering.cpp - Some functions return unsigned and arguably should be MCRegister
HexagonBitSimplify.cpp - Function takes BitTracker::RegisterRef which appears to be unsigned&
MachineVerifier.cpp - Ambiguous operator==() given MCRegister and const Register
PPCFastISel.cpp - No Register::operator-=()
PeepholeOptimizer.cpp - TargetInstrInfo::optimizeLoadInstr() takes an unsigned&
MachineTraceMetrics.cpp - MachineTraceMetrics lacks a suitable constructor

Manual fixups in:
ARMFastISel.cpp - ARMEmitLoad() now takes a Register& instead of unsigned&
HexagonSplitDouble.cpp - Ternary operator was ambiguous between unsigned/Register
HexagonConstExtenders.cpp - Has a local class named Register, used llvm::Register instead of Register.
PPCFastISel.cpp - PPCEmitLoad() now takes a Register& instead of unsigned&

Depends on D65919

Reviewers: arsenm, bogner, craig.topper, RKSimon

Reviewed By: arsenm

Subscribers: RKSimon, craig.topper, lenary, aemerson, wuzish, jholewinski, MatzeB, qcolombet, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, wdng, nhaehnle, sbc100, jgravelle-google, kristof.beyls, hiraditya, aheejin, kbarton, fedor.sergeev, javed.absar, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, tpr, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, Jim, s.egerton, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65962

llvm-svn: 369041
2019-08-15 19:22:08 +00:00
Fangrui Song dc8de6037c Simplify std::lower_bound with llvm::{bsearch,lower_bound}. NFC
llvm-svn: 364006
2019-06-21 05:40:31 +00:00
Simon Pilgrim 4e0648a541 [TargetLowering] Add MachineMemOperand::Flags to allowsMemoryAccess tests (PR42123)
As discussed on D62910, we need to check whether particular types of memory access are allowed, not just their alignment/address-space.

This NFC patch adds a MachineMemOperand::Flags argument to allowsMemoryAccess and allowsMisalignedMemoryAccesses, and wires up calls to pass the relevant flags to them.

If people are happy with this approach I can then update X86TargetLowering::allowsMisalignedMemoryAccesses to handle misaligned NT load/stores.

Differential Revision: https://reviews.llvm.org/D63075

llvm-svn: 363179
2019-06-12 17:14:03 +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
James Y Knight 62df5eed16 [opaque pointer types] Remove some calls to generic Type subtype accessors.
That is, remove many of the calls to Type::getNumContainedTypes(),
Type::subtypes(), and Type::getContainedType(N).

I'm not intending to remove these accessors -- they are
useful/necessary in some cases. However, removing the pointee type
from pointers would potentially break some uses, and reducing the
number of calls makes it easier to audit.

llvm-svn: 350835
2019-01-10 16:07:20 +00:00
David Blaikie 3f833edc7c Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layering
This header includes CodeGen headers, and is not, itself, included by
any Target headers, so move it into CodeGen to match the layering of its
implementation.

llvm-svn: 317647
2017-11-08 01:01:31 +00:00
Duncan P. N. Exon Smith e4f5e4f4d1 CodeGen: Use MachineInstr& in TargetLowering, NFC
This is a mechanical change to make TargetLowering API take MachineInstr&
(instead of MachineInstr*), since the argument is expected to be a valid
MachineInstr.  In one case, changed a parameter from MachineInstr* to
MachineBasicBlock::iterator, since it was used as an insertion point.

As a side effect, this removes a bunch of MachineInstr* to
MachineBasicBlock::iterator implicit conversions, a necessary step
toward fixing PR26753.

llvm-svn: 274287
2016-06-30 22:52:52 +00:00
Mehdi Amini b550cb1750 [NFC] Header cleanup
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 266595
2016-04-18 09:17:29 +00:00
Duncan P. N. Exon Smith 7869148c47 Mips: Remove implicit ilist iterator conversions, NFC
llvm-svn: 250769
2015-10-20 00:15:20 +00:00
Mehdi Amini 44ede33a69 Make TargetLowering::getPointerTy() taking DataLayout as an argument
Summary:
This change is part of a series of commits dedicated to have a single
DataLayout during compilation by using always the one owned by the
module.

Reviewers: echristo

Subscribers: jholewinski, ted, yaron.keren, rafael, llvm-commits

Differential Revision: http://reviews.llvm.org/D11028

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 241775
2015-07-09 02:09:04 +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
Eric Christopher e8ae3e3acd Rename the MIPS routine abiUsesSoftFloat -> useSoftFloat to match
some incoming changes and the general scheme used by features (use/has).

llvm-svn: 236794
2015-05-07 23:10:21 +00:00
Toma Tabacu 506cfd0b2b [mips] Add the SoftFloat MipsSubtarget feature.
Summary: This will enable the IAS to reject floating point instructions if soft-float is enabled.

Reviewers: dsanders, echristo

Reviewed By: dsanders

Subscribers: jfb, llvm-commits, mpf

Differential Revision: http://reviews.llvm.org/D9053

llvm-svn: 236713
2015-05-07 10:29:52 +00:00
Eric Christopher 23a3a7c871 Remove an argument-less call to getSubtargetImpl from TargetLoweringBase.
This required plumbing a TargetRegisterInfo through computeRegisterProperties
and into findRepresentativeClass which uses it for register class
iteration. This required passing a subtarget into a few target specific
initializations of TargetLowering.

llvm-svn: 230583
2015-02-26 00:00:24 +00:00
Eric Christopher 96e72c6ab1 Remove most of the TargetMachine::getSubtarget/getSubtargetImpl
calls that don't take a Function argument from Mips. Notable
exceptions: the AsmPrinter and MipsTargetObjectFile. The
latter needs to be fixed, and the former will be fixed when the
general AsmPrinter changes happen.

llvm-svn: 227512
2015-01-29 23:27:36 +00:00
Daniel Sanders 9a4f2c55df [mips] Fix 'jumpy' debug line info around calls.
Summary:
At the moment, address calculation is taking the debug line info from the
address node (e.g. TargetGlobalAddress). When a function is called multiple
times, this results in output of the form:

  .loc $first_call_location
  .. address calculation ..
  .. function call ..
  .. address calculation ..
  .loc $second_call_location
  .. function call ..
  .loc $first_call_location
  .. address calculation ..
  .loc $third_call_location
  .. function call ..

This patch makes address calculations for function calls take the debug line
info for the call node and results in output of the form:
  .loc $first_call_location
  .. address calculation ..
  .. function call ..
  .loc $second_call_location
  .. address calculation ..
  .. function call ..
  .loc $third_call_location
  .. address calculation ..
  .. function call ..

All other address calculations continue to use the address node.

Test Plan: Fixes test/DebugInfo/multiline.ll on a mips host.

Subscribers: dblaikie, llvm-commits

Differential Revision: http://reviews.llvm.org/D7050

llvm-svn: 227005
2015-01-24 14:35:11 +00:00
Daniel Sanders 23e987766b Re-commit r221056 and others with fix, "[mips] Move F128 argument handling into MipsCCState as we did for returns. NFC."
sret arguments can never originate from an f128 argument so we detect
sret arguments and push false into OriginalArgWasF128.

llvm-svn: 221102
2014-11-02 16:09:29 +00:00
NAKAMURA Takumi cd2996c3e3 Revert r221056 and others, "[mips] Move F128 argument handling into MipsCCState as we did for returns. NFC."
r221056 "[mips] Move F128 argument handling into MipsCCState as we did for returns. NFC."
  r221058 "[mips] Fix unused variable warning introduced in r221056"
  r221059 "[mips] Move all ByVal handling into CCState and tablegen-erated code. NFC."
  r221061 "Renamed CCState members that appear to misspell 'Processed' as 'Proceed'. NFC."

It cuased an undefined behavior in LLVM :: CodeGen/Mips/return-vector.ll.

llvm-svn: 221081
2014-11-02 04:43:54 +00:00
Daniel Sanders 88e1c7393b [mips] Move all ByVal handling into CCState and tablegen-erated code. NFC.
Summary:
CCState already contains a byval implementation that is very similar to the
Mips custom code. This patch merges the custom code into the existing
common code and tablegen-erated code.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: rnk, llvm-commits

Differential Revision: http://reviews.llvm.org/D5977

llvm-svn: 221059
2014-11-01 19:17:10 +00:00
Sasa Stankovic 7072a7968f [mips] For indirect calls we don't need $gp to point to .got. Mips linker
doesn't generate lazy binding stub for a function whose address is taken in
the program.

Differential Revision: http://reviews.llvm.org/D5067

llvm-svn: 218744
2014-10-01 08:22:21 +00:00
Eric Christopher 9b270d4dc9 Fix spelling and reflow comments.
llvm-svn: 218631
2014-09-29 21:57:52 +00:00
Eric Christopher b152660075 constify the TargetMachine being passed through the Mips subtarget
creation.

llvm-svn: 218169
2014-09-19 23:30:42 +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
Sylvestre Ledru 469de19a09 Fix typos:
* libaries => libraries
* avaiable => available

llvm-svn: 215366
2014-08-11 18:04:46 +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
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
Matt Arsenault 6f2a526101 Add alignment value to allowsUnalignedMemoryAccess
Rename to allowsMisalignedMemoryAccess.

On R600, 8 and 16 byte accesses are mostly OK with 4-byte alignment,
and don't need to be split into multiple accesses. Vector loads with
an alignment of the element type are not uncommon in OpenCL code.

llvm-svn: 214055
2014-07-27 17:46:40 +00:00
Eric Christopher 8924d27c02 In preparation for replacing the whole subtarget on the target machine,
have target lowering take the subtarget explicitly.

llvm-svn: 213426
2014-07-18 23:25:04 +00:00
Eric Christopher 1c29a657c7 The subtarget in MipsTargetLowering isn't going to change and
so doesn't need to be a pointer, but a reference.

llvm-svn: 213422
2014-07-18 22:55:25 +00:00
Eric Christopher 7394e23423 Avoid resetting the UseSoftFloat and FloatABIType on the TargetMachine
Options struct and move the comment to inMips16HardFloat. Use the
fact that we now know whether or not we cared about soft float to
set the libcalls.
Accordingly rename mipsSEUsesSoftFloat to abiUsesSoftFloat and
propagate since it's no longer CPU specific.

llvm-svn: 213335
2014-07-18 00:08:50 +00:00
Eric Christopher ad4de684ea Remove dead code.
llvm-svn: 212244
2014-07-03 00:44:28 +00:00
Saleem Abdulrasool 9f664c1083 Target: change member from reference to pointer
This is a preliminary step to help ease the construction of CallLoweringInfo.
Changing the construction to a chained function pattern requires that the
parameter be nullable.  However, rather than copying the vector, save a pointer
rather than the reference to permit a late binding of the arguments.

llvm-svn: 209080
2014-05-17 21:50:01 +00:00
Craig Topper 062a2baef0 [C++] Use 'nullptr'. Target edition.
llvm-svn: 207197
2014-04-25 05:30:21 +00:00
Chandler Carruth 84e68b2994 [Modules] Fix potential ODR violations by sinking the DEBUG_TYPE
definition below all of the header #include lines, lib/Target/...
edition.

llvm-svn: 206842
2014-04-22 02:41:26 +00:00
Benjamin Kramer 502b9e1d7f Retire llvm::array_endof in favor of non-member std::end.
While there make array_lengthof constexpr if we have support for it.

llvm-svn: 206112
2014-04-12 16:15:53 +00:00
Chandler Carruth 442f784814 [cleanup] Re-sort all the includes with utils/sort_includes.py.
llvm-svn: 202811
2014-03-04 10:07:28 +00:00
Benjamin Kramer b6d0bd48bd [C++11] Replace llvm::next and llvm::prior with std::next and std::prev.
Remove the old functions.

llvm-svn: 202636
2014-03-02 12:27:27 +00:00
Reed Kotler d2da810961 Make one statement easier to understand from post commmit feedback from a
review of the previous patch that introduced this week.

llvm-svn: 201723
2014-02-19 22:11:45 +00:00
Reed Kotler 4cdaa7d778 This patch has two main functions:
1) Fix a specific bug when certain conversion functions are called in a program compiled as mips16 with hard float and
the program is linked as c++. There are two libraries that are reversed in the link order with gcc/g++ and clang/clang++ for
mips16 in this case and the proper stubs will then not be called. These stubs are normally handled in the Mips16HardFloat pass
but in this case we don't know at that time that we need to generate the stubs. This must all be handled later in code generation
and we have moved this functionality to MipsAsmPrinter. When linked as C (gcc or clang) the proper stubs are linked in from libc.

2) Set up the infrastructure to handle 90% of what is in the Mips16HardFloat pass in this new area of MipsAsmPrinter. This is a more
logical place to handle this and we have known for some time that we needed to move the code later and not implement it using
inline asm as we do now but it was not clear exactly where to do this and what mechanism should be used. Now it's clear to us
how to do this and this patch contains the infrastructure to move most of this to MipsAsmPrinter but the actual moving will be done
in a follow on patch. The same infrastructure is used to fix this current bug as described in #1. This change was requested by the list
during the original putback of the Mips16HardFloat pass but was not practical for us do at that time.

llvm-svn: 201426
2014-02-14 19:16:39 +00:00
Matt Arsenault 25793a3f22 Add address space argument to allowsUnalignedMemoryAccess.
On R600, some address spaces have more strict alignment
requirements than others.

llvm-svn: 200887
2014-02-05 23:15:53 +00:00
Chandler Carruth 8a8cd2bab9 Re-sort all of the includes with ./utils/sort_includes.py so that
subsequent changes are easier to review. About to fix some layering
issues, and wanted to separate out the necessary churn.

Also comment and sink the include of "Windows.h" in three .inc files to
match the usage in Memory.inc.

llvm-svn: 198685
2014-01-07 11:48:04 +00:00
Simon Atanasyan fde102cb77 [Mips] Does not take in account 'use-soft-float' attribute's value when
consider to generate stubs for mips16 hard-float mode.

The patch reviewed by Reed Kotler.

llvm-svn: 198019
2013-12-25 17:00:27 +00:00
Reed Kotler 09e59155ef Make all the conditional Mips 16 branches get initially set for the
short form. Constant islands will expand them if they are out of range.
Since there is not direct object emitter at this time, it does not
have any material affect because the assembler sorts this out. But we
need to know for the actual constant island work. We track the difference
by putting # 16 inst in the comments.

llvm-svn: 194766
2013-11-15 02:21:52 +00:00
Reed Kotler 97309af4f4 Let rotr and bswap be handled by expansion for Mips16 since we don't
have native instructions for this.

llvm-svn: 192207
2013-10-08 17:32:33 +00:00
Akira Hatanaka af4211ad94 [mips] Make sure loads from lazy-binding entries do not get CSE'd or hoisted out
of loops.

Previously, two consecutive calls to function "func" would result in the
following sequence of instructions:

1. load $16, %got(func)($gp) // load address of lazy-binding stub.
2. move $25, $16
3. jalr $25                  // jump to lazy-binding stub.
4. nop
5. move $25, $16
6. jalr $25                  // jump to lazy-binding stub again.

With this patch, the second call directly jumps to func's address, bypassing
the lazy-binding resolution routine:

1. load $25, %got(func)($gp) // load address of lazy-binding stub.
2. jalr $25                  // jump to lazy-binding stub.
3. nop
4. load $25, %got(func)($gp) // load resolved address of func.
5. jalr $25                  // directly jump to func.

llvm-svn: 191591
2013-09-28 00:12:32 +00:00