6 Commits

Author SHA1 Message Date
Daniel Sanders
f6741d6bdd [mips] Test that IAS for -mcpu=mips5 does not accept MIPS64 insns and -mcpu=mips(5|64) does not accept MIPS64r2
Summary:
To limit the number of tests required, only one 64-bit ISA prior to MIPS64 are tested.

rdhwr has been deliberately left without an ISA annotation for now. This is
because the assembler and CodeGen disagree on when the instruction is
available. Strictly speaking, it is only available in MIPS32r2 and
MIPS64r2. However, it is emulated by a kernel trap on earlier ISA's and is
necessary for TLS so CodeGen should emit it on older ISA's too.

Depends on D3697

Reviewers: vmedic

Reviewed By: vmedic

Differential Revision: http://reviews.llvm.org/D3698

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208785 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-14 15:35:03 +00:00
Daniel Sanders
0e0f907356 [mips] Marked up instructions added in MIPS32r2 and tested that IAS for -mcpu=mips(2|32) does not accept them
Summary:
This required a new instruction group representing the 32-bit subset of
MIPS-3 that was available in MIPS32R2.

To limit the number of tests required, only one 32-bit and one 64-bit ISA
prior to MIPS32/MIPS64 are tested.

rdhwr has been deliberately left without an ISA annotation for now. This is
because the assembler and CodeGen disagree on when the instruction is
available. Strictly speaking, it is only available in MIPS32r2 and
MIPS64r2. However, it is emulated by a kernel trap on earlier ISA's and is
necessary for TLS so CodeGen should emit it on older ISA's too.

Depends on D3696

Reviewers: vmedic

Reviewed By: vmedic

Differential Revision: http://reviews.llvm.org/D3697

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208690 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-13 11:45:36 +00:00
Daniel Sanders
873f87c2de [mips] Removed two-operand alias for sllv, sr[al]v, rotrv, dsllv, dsr[al]v, and drotrv
GAS doesn't actually accept these particular cases.

The mnemonic without the trailing 'v' still supports two-operand aliases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207740 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-01 10:08:36 +00:00
Matheus Almeida
e4439438f6 [mips] Use TwoOperandAliasConstraint for shift instructions.
This enables TableGen to generate an additional two operand
matcher for our shift_rotate_imm and shift_rotate_reg class of instructions.

The tests were also updated so that they include now encoding information
for all affected instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206398 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-16 16:28:59 +00:00
Daniel Sanders
769a6f2116 [mips] Add negative tests confirm that supported ISA's don't allow instructions added in later ISA's
Summary:
test/MC/Mips/<isa1>/invalid-<isa2>.s
    Test that <isa1> does not support <isa2>'s instructions.
test/MC/Mips/<isa1>/invalid-<isa2>-xfail.s
    Things that should be invalid but currently aren't. Will XPASS if any
    become invalid.

Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3262

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205538 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-03 14:14:22 +00:00
Daniel Sanders
8750f9a291 [mips] Implement ehb, ssnop, and pause in assembler
Summary: Add negative tests for pause

Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3246

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205537 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-03 13:21:51 +00:00