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ci: test two GHDL backends (mcode and LLVM) #43
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Instead of testing compilation with GHDL's mcode backend only, this PR adds another job for testing with GHDL's LLVM backend too. However, GHDL LLVM chokes on the usage of
pin_bit_information
in librariesibm
andclib
. I asked Tristan about it in ghdl/ghdl#1772.The last commit in this PR comments all those attributes so that GHDL can analyse/elaborate them. Yet, Tristan commented:
Therefore, I will mark this PR as draft, for discussion. If those attributes are used 200+ times in this codebase, I would expect them to be supported in whichever internal VHDL simulator/synthesiser used in IBM.