Displaying 2 results from an estimated 2 matches for "subui".
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subi
2009 Jul 06
1
[LLVMdev] Mips -> DLX Modifications as Target
...ith respect to the following
(Note: I have already changed ADDui from ADDiu)
We have this
def ADDui : ArithI<0x09, "addui", add, simm16, immSExt16>;
However sticky speaking this should be in dlx the instructions are
addui rk, ri, Kuns (Where Kusn is unsigned)
Likewise DLX has a subui rk, ri, Kusn. (Mips does not)
Thus they should be:
def ADDui : ArithI<0x09, "addui", add, simm16, immZExt16>;
def SUBui : ArithI<0x23, "subui", sub, simm16, immZExt16>;
However I am not sure how or where to setup in the Target Descriptor
of the Instructions or...
2015 Nov 23
3
Qs about TwoOperandAliasConstraint and TIED_TO
in llvm-3.6.2.src
1. when I put this around one of my instruction definitions in my target "InstrInfo.td" file,
let TwoOperandAliasConstraint = "$dst = $rs1" in {
}
I do not see any TIED_TO in the generated GenInstrInfo.inc file for the OperandInfo used by the instruction,
the question is what am I doing wrong ?
2. I've noticed that TwoOperandAliasConstraint