Displaying 2 results from an estimated 2 matches for "d18802".
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518802
2016 Jun 03
2
Custom assembler subset
...t I can work with to be able to more precisely measure the
results of my work.
>
> One starting point could be to introduce new subtarget features, and
> use them as predicates on the instructions you want (or, probably,
> those you don't want). See, e.g., http://reviews.llvm.org/D18802.
>
> Another approach could be to use the (also complex) SelectionDAG
> legalization machinery to convert the operations you don't want into
> "legal" ones (that'd be in <target>ISelLowering.cpp, and
> Legalize*.cpp).
>
> > I'm pretty sure that th...
2016 Jun 01
2
Custom assembler subset
Hello all,
I would like to restrain the compiler that I build on my local box from
picking all but a particular set of opcodes. Is there a way to accomplish
this in a straightforward way? I'm pretty sure that there is a list of
opcodes to semantics mappings.
In addition, is there a way to look at an associative mapping of LLVM IR to
opcode, and/or vice versa?
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