Commit Graph

30 Commits

Author SHA1 Message Date
Simon Atanasyan 5257a95426 [mips] Add disassembler tests for `sigrie` instruction. NFC 2019-11-04 00:42:31 +03:00
Simon Atanasyan f61c43c636 [mips] Mark the `lwupc` instruction as MIPS64 R6 only
The "The MIPS64 Instruction Set Reference Manual" [1] states that
the `lwupc` is MIPS64 Release 6 only. It should not be supported
for 32-bit CPUs.

[1] https://s3-eu-west-1.amazonaws.com/downloads-mips/documents/MD00087-2B-MIPS64BIS-AFP-6.06.pdf

llvm-svn: 363886
2019-06-19 22:08:06 +00:00
Simon Dardis a5a3c38c3d [mips] Correct the predicates for special nops, tlb ctrl instrs, software breakpoint and prefx.
Reviewers: atanasyan, abeserminji

Differential Revision: https://reviews.llvm.org/D44436

llvm-svn: 329905
2018-04-12 12:37:02 +00:00
Petar Jovanovic d4f3723c56 [mips][microMIPS] add lapc instruction
Implement LAPC instruction for mips32r6, mips64r6 and micromips32r6.

Patch by Milos Stojanovic.

Differential Revision: https://reviews.llvm.org/D35984

llvm-svn: 312934
2017-09-11 18:34:04 +00:00
Petar Jovanovic 53dbfb3798 Reland r306095: [mips] Fix reg positions in the aui/daui instructions
After fixing (r306173) a failing test in the lld test suite (r306173),
reland r306095.

Original commit message:

  [mips] Fix register positions in the aui/daui instructions

  Swapped the position of the rt and rs register in the aui/daui
  instructions for mips32r6 and mips64r6. With this change, the format of
  the generated instructions complies with specifications and GCC.
  Patch by Milos Stojanovic.

llvm-svn: 306174
2017-06-23 22:37:19 +00:00
Petar Jovanovic 78811c2c07 Revert r306095: [mips] Fix reg positions in the aui/daui instructions
ELF/mips-plt-r6.s in lld-test is failing. Reverting the change.

Original commit message:

  [mips] Fix register positions in the aui/daui instructions

  Swapped the position of the rt and rs register in the aut/daui
  instructions for mips32r6 and mips64r6. With this change, the format of
  the generated instructions complies with specifications and GCC.
  Patch by Milos Stojanovic.

llvm-svn: 306099
2017-06-23 13:33:46 +00:00
Petar Jovanovic d5f7711ebb [mips] Fix register positions in the aui/daui instructions
Swapped the position of the rt and rs register in the aut/daui instructions
for mips32r6 and mips64r6. With this change, the format of the generated
instructions complies with specifications and GCC.

Patch by Milos Stojanovic.

Differential Revision: https://reviews.llvm.org/D33988

llvm-svn: 306095
2017-06-23 12:47:18 +00:00
Simon Dardis b3fd189cb5 [mips] Fix aui/daui/dahi/dati for MIPSR6
For compatiblity with binutils, define these instructions to take
two registers with a 16bit unsigned immediate. Both of the registers
have to be same for dahi and dati.

Reviewers: dsanders, zoran.jovanovic

Differential Review: https://reviews.llvm.org/D21473

llvm-svn: 284218
2016-10-14 09:31:42 +00:00
Simon Dardis 515e8699f4 [mips] Add IAS support for dvp, evp
These instructions were only defined for microMIPSR6 previously. Add
definitions for MIPSR6, correct definitions for microMIPSR6, flag these
instructions as having unmodelled side effects (they disable/enable
virtual processors) and add missing disassember tests for microMIPSR6.

Reviewers: vkalintiris

Differential Review: https://reviews.llvm.org/D24291

llvm-svn: 284115
2016-10-13 12:12:56 +00:00
Simon Dardis f45a59f80b Recommit: "[mips] Add rsqrt, recip for MIPS"
Add rsqrt.[ds], recip.[ds] for MIPS. Correct the microMIPS definitions for
architecture support and register usage.

Reviewers: vkalintiris, zoran.jovanoic

Differential Review: https://reviews.llvm.org/D24499

llvm-svn: 283334
2016-10-05 16:11:01 +00:00
Simon Dardis bbfd528748 Revert "[mips] Add rsqrt, recip for MIPS"
This reverts commit r282485 which contain two patches instead of
one.

llvm-svn: 283327
2016-10-05 15:28:33 +00:00
Simon Dardis 0486d585c5 [mips] Add rsqrt, recip for MIPS
Add rsqrt.[ds], recip.[ds] for MIPS. Correct the microMIPS definitions for
architecture support and register usage.

Reviewers: vkalintiris, zoran.jovanoic

Differential Review: https://reviews.llvm.org/D24499

llvm-svn: 282485
2016-09-27 12:25:15 +00:00
Simon Dardis e53cfa73e4 Revert "[mips] Fix aui/daui/dahi/dati for MIPSR6"
This reverts r281724. Still need dsanders to accept this.

llvm-svn: 281726
2016-09-16 13:56:05 +00:00
Simon Dardis cf060794cd [mips] Fix aui/daui/dahi/dati for MIPSR6
For compatiblity with binutils, define these instructions to take
two registers with a 16bit unsigned immediate. Both of the registers
have to be same for dahi and dati.

Reviewers: vkalintiris, dsanders, zoran.jovanovic
 
Differential Review: https://reviews.llvm.org/D21473

llvm-svn: 281724
2016-09-16 13:50:43 +00:00
Sagar Thakur 672c710de4 [MIPS][LLVM-MC] Fix Disassemble of Negative Offset
Patch by Nitesh Jain.

Summary: The type of Imm in MipsDisassembler.cpp was incorrect since SignExtend64 return int64_t type.As per the MIPSr6 doc ,the offset is added to the address of the instruction following the branch (not the branch itself), to form a PC-relative effective target address hence “4” is added to the offset. The offset of some test case are update to reflect the changes due to “ + 4 ” offset and new test case for negative offset are added.

Reviewers: dsanders, vkalintiris
Differential Revision: http://reviews.llvm.org/D17540

llvm-svn: 270542
2016-05-24 09:57:10 +00:00
Simon Dardis 53a3492b71 Summary:
Alias 'jic $reg, 0' to 'jrc $reg' and 'jialc $reg, 0' to 'jalrc $reg' like
binutils.

This patch was previous committed as r266055 as seemed to have caused some spurious
test failures. They did not reappear after further local testing.

llvm-svn: 266301
2016-04-14 13:43:17 +00:00
Simon Dardis ee1590f5f0 Revert "[mips] MIPSR6 Compact branch aliases"
This reverts commit r266055.

ps4-buildslave2 is highlighting a failure.

llvm-svn: 266061
2016-04-12 12:22:45 +00:00
Simon Dardis 703c864fe3 [mips] MIPSR6 Compact branch aliases
Summary:
Alias 'jic $reg, 0' to 'jrc $reg' and 'jialc $reg, 0' to 'jalrc $reg' like
binutils.

Reviewers: dsanders

Differential Revision: http://reviews.llvm.org/D18856

llvm-svn: 266055
2016-04-12 10:41:53 +00:00
Daniel Sanders ea4f653d18 [mips][ias] Range check uimm2 operands and fix a bug this revealed.
Summary:
The bug was that the MIPS32R6/MIPS64R6/microMIPS32R6 versions of LSA and DLSA
(unlike the MSA version) failed to account for the off-by-one encoding of the
immediate. The range is actually 1..4 rather than 0..3.

Reviewers: vkalintiris

Subscribers: atanasyan, dsanders, llvm-commits

Differential Revision: http://reviews.llvm.org/D14015

llvm-svn: 252295
2015-11-06 12:22:31 +00:00
Vasileios Kalintiris 974d409259 [mips] Added support for the ERETNC instruction.
Summary: This required adding the instruction predicate HasMips32r5.

Patch by Scott Egerton.

Reviewers: dsanders, vkalintiris

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11136

llvm-svn: 242666
2015-07-20 12:28:56 +00:00
Daniel Sanders b2fa8add82 [mips] Fold duplicate big-endian disassembler tests together.
llvm-svn: 240887
2015-06-27 17:56:44 +00:00
Daniel Sanders abe7d840b9 [mips] Sort big-endian disassembler tests by opcode.
llvm-svn: 240885
2015-06-27 16:13:59 +00:00
Daniel Sanders a3134fae17 [mips] Add COP0 register class and use it in M[FT]C0/DM[FT]C0.
Summary:
Previously it (incorrectly) used GPR's.

Patch by Simon Dardis. A couple small corrections by myself.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10567

llvm-svn: 240883
2015-06-27 15:39:19 +00:00
Vladimir Medic df464ae224 [Mips][Disassembler] When disassembler meets cache/pref instructions for r6 it crashes as the access to operands array is out of range. This patch adds dedicated decoder method for R6 CACHE_HINT_DESC class that properly handles decoding of these instructions.
llvm-svn: 227430
2015-01-29 11:33:41 +00:00
Vladimir Medic 0516a5b686 When disassembler meets compact jump instructions for r6 it crashes as the access to operands array is out of range. This patch removes dedicated decoder method that wrongly handles decoding of these instructions.
llvm-svn: 227084
2015-01-26 10:33:43 +00:00
Reid Kleckner f4ebbc6825 mips: Fix "XPASS" test results by removing 'not' commands
These tests are asserting and crashing for me, and 'not' sees that as a
non-zero exit code instead of a signal code for obscure Windows reasons.
This causes the test to pass, giving me an unclean 'ninja check'.

The test is already XFAILd, so just run the test without 'not' and let
lit handle the failure.

llvm-svn: 226958
2015-01-23 22:55:31 +00:00
Vladimir Medic 435cf8a415 [Mips][Disassembler]When disassembler meets load/store from coprocessor 2 instructions for mips r6 it crashes as the access to operands array is out of range. This patch adds dedicated decoder method that properly handles decoding of these instructions.
llvm-svn: 226652
2015-01-21 10:47:36 +00:00
Daniel Sanders 0cb9dc6e68 [mips] Make whitespace in disassembler tests more consistent. NFC.
The tests for the ISA's should now be approximately diffable. That is, the
output of 'diff valid-mips1.txt valid-mips2.txt' should be emit the lines
for instructions that were added/removed to/from MIPS-I by MIPS-II. This
doesn't work perfectly at the moment due to ordering differences but it
should be close.

llvm-svn: 226408
2015-01-18 18:38:36 +00:00
Daniel Sanders 46ad7cbfce [mips] Make whitespace of disassembler tests more consistent by removing blank lines. NFC.
llvm-svn: 226407
2015-01-18 18:21:19 +00:00
Vladimir Medic d6d486ddcc Add disassembler tests for mips32r6 platform. There are no functional changes.
llvm-svn: 226165
2015-01-15 14:11:38 +00:00