Commit Graph

5 Commits

Author SHA1 Message Date
Alex Bradbury 59136ffab1 [RISCV] Enable emission of alias instructions by default
This patch switches the default for -riscv-no-aliases to false
and updates all affected MC and CodeGen tests. As recommended in
D41071, MC tests use the canonical instructions and the CodeGen
tests use the aliases.

Additionally, for the f and d instructions with rounding mode,
the tests for the aliased versions are moved and tightened such
that they can actually detect if alias emission is enabled.
(see D40902 for context)

Differential Revision: https://reviews.llvm.org/D41225

Patch by Mario Werner.

llvm-svn: 320797
2017-12-15 09:47:01 +00:00
Alex Bradbury 9d3f12501a [RISCV] Add common fixups and relocations
%lo(), %hi(), and %pcrel_hi() are supported and test cases have been added to 
ensure the appropriate fixups and relocations are generated. I've added an 
instruction format field which is used in RISCVMCCodeEmitter to, for 
instance, tell whether it should emit a lo12_i fixup or a lo12_s fixup 
(RISC-V has two 12-bit immediate encodings depending on the instruction 
type).

Differential Revision: https://reviews.llvm.org/D23568

llvm-svn: 314389
2017-09-28 08:26:24 +00:00
Alex Bradbury 8ab4a9696a [RISCV] Add support for disassembly
This Disassembly support allows for 'round-trip' testing, and rv32i-valid.s
has been updated appropriately.

Differential Revision: https://reviews.llvm.org/D23567

llvm-svn: 313486
2017-09-17 14:36:28 +00:00
Alex Bradbury 6758ecb98c [RISCV] Add support for all RV32I instructions
This patch supports all RV32I instructions as described in the RISC-V manual.
A future patch will add support for pseudoinstructions and other instruction
expansions (e.g. 0-arg fence -> fence iorw, iorw).

Differential Revision: https://reviews.llvm.org/D23566

llvm-svn: 313485
2017-09-17 14:27:35 +00:00
Alex Bradbury 2fee9ead7e [RISCV] Add RISCVInstPrinter and basic MC assembler tests
With the addition of RISCVInstPrinter, it is now possible to test the basic 
operation of the RISCV MC layer.

Differential Revision: https://reviews.llvm.org/D23564

llvm-svn: 310917
2017-08-15 13:08:29 +00:00