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8 Commits

Author SHA1 Message Date
Alex Bradbury bca0c3cdb6 [RISCV] Support .option rvc and norvc assembler directives 
These directives allow the 'C' (compressed) extension to be enabled/disabled 
within a single file.

Differential Revision: https://reviews.llvm.org/D45864
Patch by Kito Cheng

llvm-svn: 332107
 2018-05-11 17:30:28 +00:00
Shiva Chen 056d835fa4 [RISCV] Encode RISCV specific ELF e_flags to RISCV Binary by RISCVTargetStreamer 
llvm-svn: 323507
 2018-01-26 07:53:07 +00:00
Alex Bradbury ee7c7ecd03 [RISCV] Prepare for the use of variable-sized register classes 
While parameterising by XLen, also take the opportunity to clean up the 
formatting of the RISCV .td files.

This commit unifies the in-tree code with my patchset at 
<https://github.com/lowrisc/riscv-llvm>.

llvm-svn: 316159
 2017-10-19 14:29:03 +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 4f7f0da574 [RISCV][NFC] Fix sorting of includes in lib/Target/RISCV 
llvm-svn: 312624
 2017-09-06 09:21:21 +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
Alex Bradbury d36e04cb6c [RISCV] Fix unused variable in RISCVMCTargetDesc. NFC 
Also, for better uniformity use TargetRegistry::RegisterMCAsmInfo rather than 
RegisterMCAsmInfoFn. Again, no functional change.

llvm-svn: 295026
 2017-02-14 05:15:24 +00:00
Alex Bradbury 6b2cca7f8f [RISCV] Add bare-bones RISC-V MCTargetDesc 
This is enough to compile and link but doesn't yet do anything particularly 
useful. Once an ASM parser and printer are added in the next two patches, the 
whole thing can be usefully tested.

Differential Revision: https://reviews.llvm.org/D23562

llvm-svn: 285770
 2016-11-01 23:47:30 +00:00