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Refactored op compilation code 

+ moved to separate function
This commit is contained in:
greg 2017-01-14 15:13:03 -08:00
parent 7188a7d33e
commit b9d1140264
1 changed files with 32 additions and 24 deletions
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56
src/compilation.rs
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@ -148,30 +148,7 @@ impl CodeGen for Expression {
BinExp(ref op, ref left, ref right) => {
let lhs = left.codegen(data);
let rhs = right.codegen(data);
macro_rules! simple_binop {
($fnname: expr, $name: expr) => {
$fnname(data.builder, lhs, rhs, $name)
}
}
match *op {
Add => simple_binop!(LLVMWrap::BuildAdd, "addtemp"),
Sub => simple_binop!(LLVMWrap::BuildSub, "subtemp"),
Mul => simple_binop!(LLVMWrap::BuildMul, "multemp"),
Div => simple_binop!(LLVMWrap::BuildUDiv, "divtemp"),
Mod => simple_binop!(LLVMWrap::BuildSRem, "remtemp"),
Less => {
let pred: LLVMValueRef = LLVMWrap::BuildICmp(data.builder,
LLVMIntPredicate::LLVMIntULT,
lhs,
rhs,
"tmp");
LLVMWrap::BuildZExt(data.builder, pred, int_type, "temp")
// god damn it this was probably failing because of the int_type
// this assumes everything is a FP
//LLVMWrap::BuildUIToFP(data.builder, pred, int_type, "temp")
}
_ => panic!("Bad operator {:?}", op),
}
op.codegen_with_ops(data, lhs, rhs)
}
Number(ref n) => {
let native_val = *n as u64;
@ -224,3 +201,34 @@ impl CodeGen for Expression {
}
}
}
impl BinOp {
fn codegen_with_ops(&self, data: &CompilationData, lhs: LLVMValueRef, rhs: LLVMValueRef) -> LLVMValueRef {
use self::BinOp::*;
macro_rules! simple_binop {
($fnname: expr, $name: expr) => {
$fnname(data.builder, lhs, rhs, $name)
}
}
let int_type = LLVMWrap::Int64TypeInContext(data.context);
match *self {
Add => simple_binop!(LLVMWrap::BuildAdd, "addtemp"),
Sub => simple_binop!(LLVMWrap::BuildSub, "subtemp"),
Mul => simple_binop!(LLVMWrap::BuildMul, "multemp"),
Div => simple_binop!(LLVMWrap::BuildUDiv, "divtemp"),
Mod => simple_binop!(LLVMWrap::BuildSRem, "remtemp"),
Less => {
let pred: LLVMValueRef =
LLVMWrap::BuildICmp(data.builder, LLVMIntPredicate::LLVMIntULT, lhs, rhs, "tmp");
LLVMWrap::BuildZExt(data.builder, pred, int_type, "temp")
}
Greater => {
let pred: LLVMValueRef =
LLVMWrap::BuildICmp(data.builder, LLVMIntPredicate::LLVMIntUGT, lhs, rhs, "tmp");
LLVMWrap::BuildZExt(data.builder, pred, int_type, "temp")
}
ref unknown => panic!("Bad operator {:?}", unknown),
}
}
}