search for: assemblerpredicate

Hi, I'd like to propose extending the supported syntax for AssemblerPredicates to allow sets of SubtargetFeatures to be listed, but where only one in the list has to be enabled for the predicate to be true. The condition string which forms a AssemblerPredicate already allows multiple features to be defined, separated by commas, and this means all of these features must be p...

Hi All, I have faced decoding conflict of DisassemblerTables from TableGen. I have instructions with same encoding and different mnemonic among different architecture versions. I have used Predicates and AssemblerPredicates to distinguish them on Codegen and Assembler but it does not work on Disassembler. When I look at TableGen/FixedLenDecoderEmitter.cpp, once there is decoding conflict, tablegen does not generate table entry. I think it means even though there are predicates, it does not affect to the table entry....

...reuse as much as possible from the existing PPC backend. My first goal is to target a VLE only core and my strategy so far has been to mark my VLE instructions with a predicate to require VLE support from the sub target. Example: def HasVLE : Predicate<"PPCSubTarget->hasVLE()">, AssemblerPredicate<"FeatureVLE", "VLE Instruction set">; let Predicates = [HasVLE] in { If I have understood this correct the predicate will work for CodeGen and the assembler but not for the disassembler. This has worked for the instructions added up until now when I added an instruction...