Displaying 2 results from an estimated 2 matches for "ssepackedint".
2010 Mar 25
1
[LLVMdev] TSFlagsFields and TSFlagsShifts obsolete?
I think we can get rid of the TSFlagsFields and TSFlagsShifts hack in the InstrInfo TableGen class now.
This seems to work just fine:
class Instruction {
bits<32> TSFlags;
}
class Domain<bits<2> val> {
bits<2> Value = val;
}
def GenericDomain : Domain<0>;
def SSEPackedInt : Domain<1>;
def SSEPackedSingle : Domain<2>;
def SSEPackedDouble : Domain<3>;
class X86Instr<bits<8> opcod> : Instruction {
Domain ExeDomain = GenericDomain;
let TSFlags{0-7} = opcod;
let TSFlags{22-23} = ExeDomain.Value;
}
class PIInstr<bits<8> op...
2016 Nov 28
2
RFC: code size reduction in X86 by replacing EVEX with VEX encoding
Hal, that’s a good point. There are more manually-maintained tables in the X86 backend that should probably be tablegened: the memory-folding tables and ReplaceableInstrs, to name a couple.
If you have ideas on how to get these auto-generated, please let us know.
From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of Hal Finkel via llvm-dev
Sent: Wednesday, November 23, 2016