search for: machinefunctionproperties

Maybe MF.getProperties().hasProperty(MachineFunctionProperties::Property::NoVRegs))? ~Craig On Mon, Jan 15, 2018 at 12:07 PM, Martin J. O'Riordan via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi LLVM Devs, > > > > I have some shared code that performs lowering operations that can occur > before or after register allocation....

Hi LLVM Devs, I have some shared code that performs lowering operations that can occur before or after register allocation. When it is pre-RA I want to only use virtual registers for intermediate results, but post-RA I have to use only a very restricted set of physical registers. Code generation using the restricted set is not as efficient as it is when I can use virtual registers. At

...t the NoVRrgs flag pre-ra even if there are no vregs used, when loading a .mir file for example the flag is computed from scratch and will be set. > On Jan 15, 2018, at 12:26 PM, Craig Topper via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Maybe MF.getProperties().hasProperty(MachineFunctionProperties::Property::NoVRegs))? > > ~Craig > > On Mon, Jan 15, 2018 at 12:07 PM, Martin J. O'Riordan via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: > Hi LLVM Devs, > > > > I have some shared code that performs lowering ope...

...there are no vregs used, when loading a .mir file for example the flag is computed from scratch and will be set. On Jan 15, 2018, at 12:26 PM, Craig Topper via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org> > wrote: Maybe MF.getProperties().hasProperty(MachineFunctionProperties::Property::NoVRegs))? ~Craig On Mon, Jan 15, 2018 at 12:07 PM, Martin J. O'Riordan via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org> > wrote: Hi LLVM Devs, I have some shared code that performs lowering operations that can occur before or afte...

...n expertise to do correctly and efficiently. This includes target-independent codegen IR/machine passes and target-specific codegen IR/machine passes. - 100% codegen feature parity between LPM and NPM. It's very likely that I did not port some features in this work. A few I'm aware of are `MachineFunctionProperties`, `-debugify-and-strip-all`, and "machine pass plugins". However, if the community is convinced this work is the right design, these missing features could be added by interested parties. ** Implementation / Design Choices ** * Goal-1 * https://reviews.llvm.org/D67687 Four member me...