Commit Graph

108 Commits

Author SHA1 Message Date
Craig Topper 326008c615 [X86] Fix disassembly of EVEX rounding control and SAE instructions.
Fixes PR31955.

llvm-svn: 316308
2017-10-23 02:26:24 +00:00
Craig Topper ca2382d809 [X86] Fix disassembling of EVEX instructions to stop accidentally decoding the SIB index register as an XMM/YMM/ZMM register.
This introduces a new operand type to encode the whether the index register should be XMM/YMM/ZMM. And new code to fixup the results created by readSIB.

This has the nice effect of removing a bunch of code that hard coded the name of every GATHER and SCATTER instruction to map the index type.

This fixes PR32807.

llvm-svn: 316273
2017-10-21 20:03:20 +00:00
Andrew V. Tischenko bfc9061593 This patch is a result of D37262: The issues with X86 prefixes. It closes PR7709, PR17697, PR19251, PR32809 and PR21640. There could be other bugs closed by this patch.
llvm-svn: 315899
2017-10-16 11:14:29 +00:00
Chandler Carruth 6bda14b313 Sort the remaining #include lines in include/... and lib/....
I did this a long time ago with a janky python script, but now
clang-format has built-in support for this. I fed clang-format every
line with a #include and let it re-sort things according to the precise
LLVM rules for include ordering baked into clang-format these days.

I've reverted a number of files where the results of sorting includes
isn't healthy. Either places where we have legacy code relying on
particular include ordering (where possible, I'll fix these separately)
or where we have particular formatting around #include lines that
I didn't want to disturb in this patch.

This patch is *entirely* mechanical. If you get merge conflicts or
anything, just ignore the changes in this patch and run clang-format
over your #include lines in the files.

Sorry for any noise here, but it is important to keep these things
stable. I was seeing an increasing number of patches with irrelevant
re-ordering of #include lines because clang-format was used. This patch
at least isolates that churn, makes it easy to skip when resolving
conflicts, and gets us to a clean baseline (again).

llvm-svn: 304787
2017-06-06 11:49:48 +00:00
Craig Topper fba613e407 [X86] Merge the disassemblers handling of the different TYPE_RELs by getting the size information from the ENCODING field. NFCI
llvm-svn: 292096
2017-01-16 06:49:09 +00:00
Craig Topper ad944a1cac [X86] Reduce the number of operand 'types' the disassembler needs to deal with. NFCI
We were frequently checking for a list of types and the different types
conveyed no real information. So lump them together explicitly.

llvm-svn: 292095
2017-01-16 06:49:03 +00:00
Craig Topper 3173a1f8ff [AVX-512] Teach the disassembler about all of the EVEX gather and scatter instructions.
llvm-svn: 292094
2017-01-16 05:44:33 +00:00
Craig Topper 33ac064137 [AVX-512] Begin giving the disassembler a way to recognize that VSIB is a different encoding than regular addressing modes.
This part first teaches it not to check error if EVEX.V2 is used by a VSIB instruction.

llvm-svn: 292093
2017-01-16 05:44:25 +00:00
Craig Topper ba13703bb3 [AVX-512] Fix a disassembler failure for AVX-512 vcmpss/vcmpsd with an immediate larger than 32. Fix the same bug with VLX vcmpps/vcmppd.
Fixes PR24941.

llvm-svn: 286775
2016-11-13 19:58:18 +00:00
Mehdi Amini f42454b94b Move the global variables representing each Target behind accessor function
This avoids "static initialization order fiasco"

Differential Revision: https://reviews.llvm.org/D25412

llvm-svn: 283702
2016-10-09 23:00:34 +00:00
Mehdi Amini 36d33fc109 Use StringRef instead of raw pointers in MCAsmInfo/MCInstrInfo APIs (NFC)
llvm-svn: 283018
2016-10-01 06:46:33 +00:00
Craig Topper b805723294 [X86] Remove unnecessary header file containing a small class. It was only included in one place. Just define the class directly in the cpp file. NFC
llvm-svn: 267985
2016-04-29 04:22:28 +00:00
Craig Topper e7c1cd18d3 [X86] Include X86MCTargetDesc.h directly in X86Disassembler.cpp instead of duplicating parts of it. NFC
llvm-svn: 267984
2016-04-29 04:22:26 +00:00
Craig Topper 4ab89ea187 [X86] Remove unused encoding types from disassembler. NFC
llvm-svn: 261494
2016-02-21 19:49:16 +00:00
Craig Topper 5eeb41c173 [X86] Remove unused entries from the disassembler type enum.
llvm-svn: 261311
2016-02-19 06:57:40 +00:00
Benjamin Kramer f57c1977c1 Reflect the MC/MCDisassembler split on the include/ level.
No functional change, just moving code around.

llvm-svn: 258818
2016-01-26 16:44:37 +00:00
Asaf Badouh 0d957b8b09 [X86][AVX512CD] add mask broadcast intrinsics
Differential Revision: http://reviews.llvm.org/D14573

llvm-svn: 253450
2015-11-18 09:42:45 +00:00
Benjamin Kramer 039b10423a Put global classes into the appropriate namespace.
Most of the cases belong into an anonymous namespace. No
functionality change intended.

llvm-svn: 251515
2015-10-28 13:54:36 +00:00
Cameron Esfahani f97999dc46 Explicitly clear the MI operand list when getInstruction() is called. Call MI.clear() within MCD::OPC_Decode case and inside of translateInstruction() for the X86 target. Remove now unnecessary MI.clear() from ARMDisassembler.
Summary: Explicitly clear the MI operand list when getInstruction() is called.

Reviewers: hfinkel, t.p.northover, hvarga, kparzysz, jyknight, qcolombet, uweigand

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11665

llvm-svn: 244557
2015-08-11 01:15:07 +00:00
Douglas Katzman 289ec857d2 [X86]: Correctly sign-extend 16-bit immediate in CALL instruction.
Patch by Matthew Barney. Thanks!

Differential Revision: http://reviews.llvm.org/D9514

llvm-svn: 240795
2015-06-26 16:58:59 +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
Elena Demikhovsky 6b62b659cb X86-MPX: Implemented encoding for MPX instructions.
Added encoding tests.

llvm-svn: 239403
2015-06-09 13:02:10 +00:00
Michael Kuperstein db0712f986 Use std::bitset for SubtargetFeatures.
Previously, subtarget features were a bitfield with the underlying type being uint64_t. 
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.
No functional change.

The first several times this was committed (e.g. r229831, r233055), it caused several buildbot failures.
Apparently the reason for most failures was both clang and gcc's inability to deal with large numbers (> 10K) of bitset constructor calls in tablegen-generated initializers of instruction info tables. 
This should now be fixed.

llvm-svn: 238192
2015-05-26 10:47:10 +00:00
Jim Grosbach e9119e41ef MC: Modernize MCOperand API naming. NFC.
MCOperand::Create*() methods renamed to MCOperand::create*().

llvm-svn: 237275
2015-05-13 18:37:00 +00:00
Michael Kuperstein c3434b390d Reverting r237234, "Use std::bitset for SubtargetFeatures"
The buildbots are still not satisfied.
MIPS and ARM are failing (even though at least MIPS was expected to pass).

llvm-svn: 237245
2015-05-13 10:28:46 +00:00
Michael Kuperstein aba4a34ef2 Use std::bitset for SubtargetFeatures
Previously, subtarget features were a bitfield with the underlying type being uint64_t. 
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.
No functional change.

The first two times this was committed (r229831, r233055), it caused several buildbot failures. 
At least some of the ARM and MIPS ones were due to gcc/binutils issues, and should now be fixed.

llvm-svn: 237234
2015-05-13 08:27:08 +00:00
Michael Kuperstein 29704e7fb4 Revert "Use std::bitset for SubtargetFeatures"
This reverts commit r233055.

It still causes buildbot failures (gcc running out of memory on several platforms, and a self-host failure on arm), although less than the previous time.

llvm-svn: 233068
2015-03-24 12:56:59 +00:00
Michael Kuperstein 774b441b5e Use std::bitset for SubtargetFeatures
Previously, subtarget features were a bitfield with the underlying type being uint64_t. 
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.
No functional change.

The first time this was committed (r229831), it caused several buildbot failures. 
At least some of the ARM ones were due to gcc/binutils issues, and should now be fixed.

Differential Revision: http://reviews.llvm.org/D8542

llvm-svn: 233055
2015-03-24 09:17:25 +00:00
Craig Topper 09b27e7b24 [X86] Fix diassembler crash on AVX512 cmpps/cmppd with immediate that doesn't fit in 5-bits. Fixes PR22743.
llvm-svn: 230924
2015-03-02 00:22:29 +00:00
Michael Kuperstein efd7a96d2e Reverting r229831 due to multiple ARM/PPC/MIPS build-bot failures.
llvm-svn: 229841
2015-02-19 11:38:11 +00:00
Michael Kuperstein ba5b04c798 Use std::bitset for SubtargetFeatures
Previously, subtarget features were a bitfield with the underlying type being uint64_t. 
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.

No functional change.

Differential Revision: http://reviews.llvm.org/D7065

llvm-svn: 229831
2015-02-19 09:01:04 +00:00
Craig Topper 916708f152 [X86] Add support for parsing and printing the mnemonic aliases for the XOP VPCOM instructions.
llvm-svn: 229078
2015-02-13 07:42:25 +00:00
Craig Topper 7d3c6d307a [X86] Teach disassembler to handle illegal immediates on AVX512 integer compare instructions.
llvm-svn: 227302
2015-01-28 10:09:56 +00:00
Craig Topper 620b50cc23 [X86] Convert all the i8imm used by SSE and AVX instructions to u8imm.
This makes the assembler check their size and removes a hack from the disassembler to avoid sign extending the immediate.

llvm-svn: 226645
2015-01-21 08:15:54 +00:00
Craig Topper 23fa478709 [X86] Remove some unused TYPE enums from the disassembler.
llvm-svn: 225343
2015-01-07 07:47:52 +00:00
Craig Topper ee9eef2fd8 Teach disassembler to handle illegal immediates on (v)cmpps/pd/ss/sd instructions. Instead of rejecting we'll just generate the _alt forms that don't try to alter the mnemonic. While I'm here, merge some common code in the Instruction printers for the condition code replacement and fix the mask on SSE to be 3-bits instead of 4.
llvm-svn: 224846
2014-12-26 06:36:28 +00:00
Michael Liao 5bf9578ce4 [X86] Clean up whitespace as well as minor coding style
llvm-svn: 223339
2014-12-04 05:20:33 +00:00
Rafael Espindola 7fc5b87480 Pass an ArrayRef to MCDisassembler::getInstruction.
With this patch MCDisassembler::getInstruction takes an ArrayRef<uint8_t>
instead of a MemoryObject.

Even on X86 there is a maximum size an instruction can have. Given
that, it seems way simpler and more efficient to just pass an ArrayRef
to the disassembler instead of a MemoryObject and have it do a virtual
call every time it wants some extra bytes.

llvm-svn: 221751
2014-11-12 02:04:27 +00:00
Rafael Espindola 4aa6bea7a2 Misc style fixes. NFC.
This fixes a few cases of:

* Wrong variable name style.
* Lines longer than 80 columns.
* Repeated names in comments.
* clang-format of the above.

This make the next patch a lot easier to read.

llvm-svn: 221615
2014-11-10 18:11:10 +00:00
Adam Nemet 5933c2f824 [X86] AVX512: Add disassembler support for compressed displacement
There are two parts here.  First is to modify tablegen to adjust the encoding
type ENCODING_RM with the scaling factor.

The second is to use the new encoding types to compute the correct
displacement in the decoder.

Fixes <rdar://problem/17608489>

llvm-svn: 213281
2014-07-17 17:04:56 +00:00
Patrik Hagglund 319983810a Fix gcc -Wsign-compare warning in X86DisassemblerTables.cpp.
X86_MAX_OPERANDS is changed to unsigned.

Also, add range-based for loops for affected loops. This in turn
needed an ArrayRef instead of a pointer-to-array in
InternalInstruction.

llvm-svn: 207413
2014-04-28 12:12:27 +00:00
Craig Topper 062a2baef0 [C++] Use 'nullptr'. Target edition.
llvm-svn: 207197
2014-04-25 05:30:21 +00:00
Elena Demikhovsky 8ac0bf96f0 X86Disassembler - fixed a bug in immediate print
llvm-svn: 206953
2014-04-23 07:21:04 +00:00
Chandler Carruth d174b72a28 [cleanup] Lift using directives, DEBUG_TYPE definitions, and even some
system headers above the includes of generated '.inc' files that
actually contain code. In a few targets this was already done pretty
consistently, but it wasn't done *really* consistently anywhere. It is
strictly cleaner IMO and necessary in a bunch of places where the
DEBUG_TYPE is referenced from the generated code. Consistency with the
necessary places trumps. Hopefully the build bots are OK with the
movement of intrin.h...

llvm-svn: 206838
2014-04-22 02:03:14 +00:00
Chandler Carruth e96dd8975f [Modules] Make Support/Debug.h modular. This requires it to not change
behavior based on other files defining DEBUG_TYPE, which means it cannot
define DEBUG_TYPE at all. This is actually better IMO as it forces folks
to define relevant DEBUG_TYPEs for their files. However, it requires all
files that currently use DEBUG(...) to define a DEBUG_TYPE if they don't
already. I've updated all such files in LLVM and will do the same for
other upstream projects.

This still leaves one important change in how LLVM uses the DEBUG_TYPE
macro going forward: we need to only define the macro *after* header
files have been #include-ed. Previously, this wasn't possible because
Debug.h required the macro to be pre-defined. This commit removes that.
By defining DEBUG_TYPE after the includes two things are fixed:

- Header files that need to provide a DEBUG_TYPE for some inline code
  can do so by defining the macro before their inline code and undef-ing
  it afterward so the macro does not escape.

- We no longer have rampant ODR violations due to including headers with
  different DEBUG_TYPE definitions. This may be mostly an academic
  violation today, but with modules these types of violations are easy
  to check for and potentially very relevant.

Where necessary to suppor headers with DEBUG_TYPE, I have moved the
definitions below the includes in this commit. I plan to move the rest
of the DEBUG_TYPE macros in LLVM in subsequent commits; this one is big
enough.

The comments in Debug.h, which were hilariously out of date already,
have been updated to reflect the recommended practice going forward.

llvm-svn: 206822
2014-04-21 22:55:11 +00:00
Richard Smith 89ee75d786 What year is it! This file has no reason to be written in C, and has doubly no
reason to expose a global symbol 'decodeInstruction' nor to pollute the global
scope with a bunch of external linkage entities (some of which conflict with
others elsewhere in LLVM).

This is just the initial transition to C++; more cleanups to follow.

llvm-svn: 206717
2014-04-20 21:07:34 +00:00
Lang Hames a1bc0f5662 [MC] Require an MCContext when constructing an MCDisassembler.
This patch re-introduces the MCContext member that was removed from
MCDisassembler in r206063, and requires that an MCContext be passed in at
MCDisassembler construction time. (Previously the MCContext member had been
initialized in an ad-hoc fashion after construction). The MCCContext member
can be used by MCDisassembler sub-classes to construct constant or
target-specific MCExprs.

This patch updates disassemblers for in-tree targets, and provides the
MCRegisterInfo instance that some disassemblers were using through the
MCContext (previously those backends were constructing their own
MCRegisterInfo instances).

llvm-svn: 206241
2014-04-15 04:40:56 +00:00
Lang Hames 0563ca1be8 [X86] unique_ptr'ify one of X86GenericDisassembler's members.
llvm-svn: 206127
2014-04-13 04:09:16 +00:00
NAKAMURA Takumi 372f05d537 X86Disassembler.cpp: Fix @param introduced in r199804. [-Wdocumentation]
llvm-svn: 199855
2014-01-23 00:37:25 +00:00