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wrapped & saturated multiplication

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Folkert 2023-09-11 17:20:27 +02:00
parent dcdaaf4328
commit 134bcf8098
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3 changed files with 110 additions and 3 deletions
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23
crates/compiler/gen_dev/src/lib.rs
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@ -1012,6 +1012,12 @@ trait Backend<'a> {
),
LowLevel::NumMul => self.build_num_mul(sym, &args[0], &args[1], ret_layout),
LowLevel::NumMulWrap => self.build_num_mul_wrap(sym, &args[0], &args[1], ret_layout),
LowLevel::NumMulSaturated => {
self.build_num_mul_saturated(*sym, args[0], args[1], *ret_layout);
}
LowLevel::NumMulChecked => {
self.build_num_mul_checked(sym, &args[0], &args[1], &arg_layouts[0], ret_layout)
}
LowLevel::NumDivTruncUnchecked | LowLevel::NumDivFrac => {
debug_assert_eq!(
2,
@ -2054,6 +2060,23 @@ trait Backend<'a> {
layout: &InLayout<'a>,
);
fn build_num_mul_saturated(
&mut self,
dst: Symbol,
src1: Symbol,
src2: Symbol,
layout: InLayout<'a>,
);
fn build_num_mul_checked(
&mut self,
dst: &Symbol,
src1: &Symbol,
src2: &Symbol,
num_layout: &InLayout<'a>,
return_layout: &InLayout<'a>,
);
/// build_num_mul stores `src1 / src2` into dst.
fn build_num_div(&mut self, dst: &Symbol, src1: &Symbol, src2: &Symbol, layout: &InLayout<'a>);