Displaying 2 results from an estimated 2 matches for "setgepat".
Did you mean:
setgepats
2012 Jul 20
0
[LLVMdev] Help with Instruction Expansion on Mips
...def : MipsPat<(i32 immSExt16:$in),
(ADDiu ZERO, imm:$in)>;
def : MipsPat<(i32 immZExt16:$in),
(ORi ZERO, imm:$in)>;
def : MipsPat<(i32 immLow16Zero:$in),
(LUi (HI16 imm:$in))>;
Here are some which have several instructions
multiclass SetgePats<RegisterClass RC, Instruction SLTOp, Instruction
SLTuOp> {
def : MipsPat<(setge RC:$lhs, RC:$rhs),
(XORi (SLTOp RC:$lhs, RC:$rhs), 1)>;
def : MipsPat<(setuge RC:$lhs, RC:$rhs),
(XORi (SLTuOp RC:$lhs, RC:$rhs), 1)>;
}
On 07/20/2012 07:20...
2012 Jul 20
2
[LLVMdev] Help with Instruction Expansion on Mips
Thanks for your reply.
We are trying to implement a simple Mips-based CPU with just for teaching
purpose, so we delete some instructions which are not commonly used, thus
the task won't be too hard for students. I am responsible for modifying the
compiler so that the compiler won't emit unsupported instructions.
In order to avoid "can not select" error, I am trying to expand