search for: g_shl

...e on large rulesets or large functions. > > Okay, I see now where you're coming from, and the goal makes a lot of sense to me. I need some help with the syntax and semantics though :) > > First, just to clarify, the intention is for matchARMShiftedOp2 to match something like "G_SHL %X, ${imm}", right? Why not express that directly in MIR? Going by http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0068b/CIHBEAGE.html (which admittedly is old docs but it's unlikely to have changed), it needs to be able to match the following: %0 = G_CONSTANT iN ${imm} #...

Thanks Nicolai! > On Nov 9, 2018, at 02:55, Nicolai Hähnle <nhaehnle at gmail.com> wrote: > > Hi Daniel, > > Lots of good stuff in there! I especially like the design for specifying out-of-line predicates. I have a couple of small comments and one major one below. > > > On 09.11.18 02:42, Daniel Sanders via llvm-dev wrote: >> _Passing arbitrary data from

Hello, I am developing GlobalISel for MIPS. I have a few questions and observations about defining legality of generic instruction and also possible combining of instructions and artifacts in pre/post legalizer combiner or elsewhere (e.g. in some sort of instruction-select patterns). I look at legality as "If generic instruction can be selected into machine instruction, it is legal".