mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-28 20:29:21 +00:00
00fee65fd2
the return value is zero-extended if it isn't sign-extended. It may also be any-extended. Also, if a floating point value was returned in a larger floating point type, pass 1 as the second operand to FP_ROUND, which tells it that all the precision is in the original type. I think this is right but I could be wrong. Finally, when doing libcalls, set isZExt on a parameter if it is "unsigned". Currently isSExt is set when signed, and nothing is set otherwise. This should be right for all calls to standard library routines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47122 91177308-0d34-0410-b5e6-96231b3b80d8 |
||
|---|---|---|
| .. | ||
| Alpha.h | ||
| Alpha.td | ||
| AlphaAsmPrinter.cpp | ||
| AlphaBranchSelector.cpp | ||
| AlphaCodeEmitter.cpp | ||
| AlphaInstrFormats.td | ||
| AlphaInstrInfo.cpp | ||
| AlphaInstrInfo.h | ||
| AlphaInstrInfo.td | ||
| AlphaISelDAGToDAG.cpp | ||
| AlphaISelLowering.cpp | ||
| AlphaISelLowering.h | ||
| AlphaJITInfo.cpp | ||
| AlphaJITInfo.h | ||
| AlphaLLRP.cpp | ||
| AlphaRegisterInfo.cpp | ||
| AlphaRegisterInfo.h | ||
| AlphaRegisterInfo.td | ||
| AlphaRelocations.h | ||
| AlphaSchedule.td | ||
| AlphaSubtarget.cpp | ||
| AlphaSubtarget.h | ||
| AlphaTargetAsmInfo.cpp | ||
| AlphaTargetAsmInfo.h | ||
| AlphaTargetMachine.cpp | ||
| AlphaTargetMachine.h | ||
| Makefile | ||
| README.txt | ||
*** add gcc builtins for alpha instructions *** custom expand byteswap into nifty extract/insert/mask byte/word/longword/quadword low/high sequences *** see if any of the extract/insert/mask operations can be added *** match more interesting things for cmovlbc cmovlbs (move if low bit clear/set) *** lower srem and urem remq(i,j): i - (j * divq(i,j)) if j != 0 remqu(i,j): i - (j * divqu(i,j)) if j != 0 reml(i,j): i - (j * divl(i,j)) if j != 0 remlu(i,j): i - (j * divlu(i,j)) if j != 0 *** add crazy vector instructions (MVI): (MIN|MAX)(U|S)(B8|W4) min and max, signed and unsigned, byte and word PKWB, UNPKBW pack/unpack word to byte PKLB UNPKBL pack/unpack long to byte PERR pixel error (sum accross bytes of bytewise abs(i8v8 a - i8v8 b)) cmpbytes bytewise cmpeq of i8v8 a and i8v8 b (not part of MVI extentions) this has some good examples for other operations that can be synthesised well from these rather meager vector ops (such as saturating add). http://www.alphalinux.org/docs/MVI-full.html