[llvm-dev] Disassembler decoding conflict

[Finkel, Hal J. via llvm-dev]

On 4/1/19 6:48 PM, Josh Sharp via llvm-dev wrote:
I have an ADDI instruction and an ADDI_Clone instruction which is just a special case of ADDI. The 2 have the same opcode. During generation of XXXGenDisassemblerTables.inc, I get this message

Decoding Conflict:
 00000...........
 ................
ADDI 00000___________
ADDI_clone 00000___________


What is the proper way to solve this conflict?


Should your ADDI_clone be marked with isCodeGenOnly = 1 - if you're only using it for specialized code generation, then this is the right solution.


 -Hal


Thanks.




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--
Hal Finkel
Lead, Compiler Technology and Programming Languages
Leadership Computing Facility
Argonne National Laboratory
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