search for: const32

...backend. My architecture has a store instruction with direct address mode. It accepts two arguments: source register and address (immediate). This instruction is not available in Mips, but it is in Hexagon, so I copied from Hexagon the following, adapting it to my registers: - In ISelLowering.h: CONST32 and CONST32_GP - In ISelLowering.cpp: LowerGlobalAddress - In TargetObjectFile.cpp: isGlobalInSmallSection - In InstrInfo.td: def SDTmyCONST32 : SDTypeProfile<1, 1, [ SDTCisVT<0, i32>, SDTCisVT<1, i...

Oh, one thing I forgot to mention: ReadOnly objects are also counted as small data globals on PPC (on top of BSS, Data, Common). That's what the r2 base is for (.sdata2, defined to be constant data). 32-bit immediate loads take 2 ops minimum on PPC, so even constant loading benefits from small data. It'd be handy to add a third argument containing what kind would normally be returned:

...>> >> let hasSideEffects = 1 in >> -def BARRIER : STInst<(outs), (ins), >> +def BARRIER : STInst2<(outs), (ins), >> "barrier", >> [(HexagonBARRIER)]>; >> >> @@ -2324,35 +2324,35 @@ def CONST32 : LDInst<(outs IntRegs:$dst), (ins globaladdress:$global), >> (load (HexagonCONST32 tglobaltlsaddr:$global)))]>; >> >> let isReMaterializable = 1, isMoveImm = 1 in >> -def CONST32_set : LDInst<(outs IntRegs:$dst), (ins globaladdress:$global), >&...