mirror of
https://github.com/roc-lang/roc.git
synced 2025-08-02 19:32:17 +00:00
gen-dev: complete Num{Mul,Add,Sub}Saturated impls
MulSaturated and AddSaturated are now implemented for u128, i128
SubSaturated is now implemented for Dec even if it's a little strange to
saturate at a decimal value:
```
» Num.subSaturated -170_141_183_460_469_231_731dec 1
-170141183460469231731.687303715884105728 : Dec
```
I decided to rm the `build_num_{mul,add}_saturated` methods because
they don't require any asm-specifics. They either call out to bitcode, or
use the non-saturated version for floats.
This commit is contained in:
shua
parent
49ab969ff3
commit
8fd2fbc3a1
4 changed files with 231 additions and 192 deletions
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@ -1432,28 +1432,20 @@ impl<
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src2: Symbol,
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layout: InLayout<'a>,
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) {
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match self.layout_interner.get_repr(layout) {
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LayoutRepr::Builtin(Builtin::Int(width @ quadword_and_smaller!())) => {
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let intrinsic = bitcode::NUM_ADD_SATURATED_INT[width].to_string();
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match self.interner().get_repr(layout) {
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LayoutRepr::Builtin(Builtin::Int(int_width)) => {
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let intrinsic = bitcode::NUM_ADD_SATURATED_INT[int_width].to_string();
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self.build_fn_call(&dst, intrinsic, &[src1, src2], &[layout, layout], &layout);
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}
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LayoutRepr::Builtin(Builtin::Float(FloatWidth::F64)) => {
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let dst_reg = self.storage_manager.claim_float_reg(&mut self.buf, &dst);
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let src1_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src1);
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let src2_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src2);
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ASM::add_freg64_freg64_freg64(&mut self.buf, dst_reg, src1_reg, src2_reg);
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}
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LayoutRepr::Builtin(Builtin::Float(FloatWidth::F32)) => {
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let dst_reg = self.storage_manager.claim_float_reg(&mut self.buf, &dst);
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let src1_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src1);
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let src2_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src2);
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ASM::add_freg32_freg32_freg32(&mut self.buf, dst_reg, src1_reg, src2_reg);
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LayoutRepr::Builtin(Builtin::Float(_)) => {
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// saturated add is just normal add
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self.build_num_add(&dst, &src1, &src2, &layout)
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}
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LayoutRepr::Builtin(Builtin::Decimal) => {
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let intrinsic = bitcode::DEC_ADD_SATURATED.to_string();
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self.build_fn_call(&dst, intrinsic, &[src1, src2], &[layout, layout], &layout);
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}
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x => todo!("NumAddSaturated: layout, {:?}", x),
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other => internal_error!("NumAddSaturated is not defined for {other:?}"),
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}
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}
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@ -1481,6 +1473,30 @@ impl<
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)
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}
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fn build_num_sub_saturated(
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&mut self,
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dst: Symbol,
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src1: Symbol,
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src2: Symbol,
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layout: InLayout<'a>,
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) {
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match self.interner().get_repr(layout) {
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LayoutRepr::Builtin(Builtin::Int(int_width)) => {
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let intrinsic = bitcode::NUM_SUB_SATURATED_INT[int_width].to_string();
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self.build_fn_call(&dst, intrinsic, &[src1, src2], &[layout, layout], &layout);
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}
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LayoutRepr::Builtin(Builtin::Float(_)) => {
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// saturated sub is just normal sub
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self.build_num_sub(&dst, &src1, &src2, &layout)
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}
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LayoutRepr::Builtin(Builtin::Decimal) => {
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let intrinsic = bitcode::DEC_SUB_SATURATED.to_string();
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self.build_fn_call(&dst, intrinsic, &[src1, src2], &[layout, layout], &layout);
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}
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other => internal_error!("NumSubSaturated is not defined for {other:?}"),
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}
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}
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fn build_num_sub_checked(
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&mut self,
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dst: &Symbol,
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@ -1619,28 +1635,20 @@ impl<
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src2: Symbol,
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layout: InLayout<'a>,
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) {
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match self.layout_interner.get_repr(layout) {
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LayoutRepr::Builtin(Builtin::Int(width @ quadword_and_smaller!())) => {
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let intrinsic = bitcode::NUM_MUL_SATURATED_INT[width].to_string();
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match self.interner().get_repr(layout) {
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LayoutRepr::Builtin(Builtin::Int(int_width)) => {
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let intrinsic = bitcode::NUM_MUL_SATURATED_INT[int_width].to_string();
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self.build_fn_call(&dst, intrinsic, &[src1, src2], &[layout, layout], &layout);
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}
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LayoutRepr::Builtin(Builtin::Float(FloatWidth::F64)) => {
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let dst_reg = self.storage_manager.claim_float_reg(&mut self.buf, &dst);
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let src1_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src1);
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let src2_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src2);
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ASM::mul_freg64_freg64_freg64(&mut self.buf, dst_reg, src1_reg, src2_reg);
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}
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LayoutRepr::Builtin(Builtin::Float(FloatWidth::F32)) => {
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let dst_reg = self.storage_manager.claim_float_reg(&mut self.buf, &dst);
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let src1_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src1);
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let src2_reg = self.storage_manager.load_to_float_reg(&mut self.buf, &src2);
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ASM::mul_freg32_freg32_freg32(&mut self.buf, dst_reg, src1_reg, src2_reg);
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LayoutRepr::Builtin(Builtin::Float(_)) => {
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// saturated mul is just normal mul
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self.build_num_mul(&dst, &src1, &src2, &layout)
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}
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LayoutRepr::Builtin(Builtin::Decimal) => {
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let intrinsic = bitcode::DEC_MUL_SATURATED.to_string();
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self.build_fn_call(&dst, intrinsic, &[src1, src2], &[layout, layout], &layout);
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}
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x => todo!("NumMulSaturated: layout, {:?}", x),
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other => internal_error!("NumMulSaturated is not defined for {other:?}"),
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}
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}
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@ -1005,7 +1005,7 @@ trait Backend<'a> {
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}
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}
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/// build_run_low_level builds the low level opertation and outputs to the specified symbol.
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/// build_run_low_level builds the low level operation and outputs to the specified symbol.
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/// The builder must keep track of the symbol because it may be referred to later.
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fn build_run_low_level(
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&mut self,
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@ -1068,9 +1068,6 @@ trait Backend<'a> {
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LowLevel::NumAddChecked => {
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self.build_num_add_checked(sym, &args[0], &args[1], &arg_layouts[0], ret_layout)
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}
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LowLevel::NumSubChecked => {
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self.build_num_sub_checked(sym, &args[0], &args[1], &arg_layouts[0], ret_layout)
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}
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LowLevel::NumAcos => self.build_fn_call(
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sym,
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bitcode::NUM_ACOS[FloatWidth::F64].to_string(),
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@ -1239,27 +1236,12 @@ trait Backend<'a> {
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);
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self.build_num_sub_wrap(sym, &args[0], &args[1], ret_layout)
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}
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LowLevel::NumSubSaturated => match self.interner().get_repr(*ret_layout) {
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LayoutRepr::Builtin(Builtin::Int(int_width)) => self.build_fn_call(
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sym,
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bitcode::NUM_SUB_SATURATED_INT[int_width].to_string(),
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args,
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arg_layouts,
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ret_layout,
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),
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LayoutRepr::Builtin(Builtin::Float(FloatWidth::F32)) => {
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self.build_num_sub(sym, &args[0], &args[1], ret_layout)
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}
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LayoutRepr::Builtin(Builtin::Float(FloatWidth::F64)) => {
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// saturated sub is just normal sub
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self.build_num_sub(sym, &args[0], &args[1], ret_layout)
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}
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LayoutRepr::Builtin(Builtin::Decimal) => {
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// self.load_args_and_call_zig(backend, bitcode::DEC_SUB_SATURATED)
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todo!()
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}
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_ => internal_error!("invalid return type"),
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},
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LowLevel::NumSubSaturated => {
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self.build_num_sub_saturated(*sym, args[0], args[1], *ret_layout)
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}
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LowLevel::NumSubChecked => {
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self.build_num_sub_checked(sym, &args[0], &args[1], &arg_layouts[0], ret_layout)
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}
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LowLevel::NumBitwiseAnd => {
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if let LayoutRepr::Builtin(Builtin::Int(int_width)) =
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self.interner().get_repr(*ret_layout)
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@ -2392,16 +2374,6 @@ trait Backend<'a> {
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layout: &InLayout<'a>,
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);
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/// build_num_sub_checked stores the sum of src1 and src2 into dst.
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fn build_num_sub_checked(
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&mut self,
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dst: &Symbol,
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src1: &Symbol,
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src2: &Symbol,
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num_layout: &InLayout<'a>,
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return_layout: &InLayout<'a>,
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);
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/// build_num_mul stores `src1 * src2` into dst.
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fn build_num_mul(&mut self, dst: &Symbol, src1: &Symbol, src2: &Symbol, layout: &InLayout<'a>);
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@ -2460,6 +2432,25 @@ trait Backend<'a> {
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layout: &InLayout<'a>,
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);
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/// build_num_sub_saturated stores the `src1 - src2` difference into dst.
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fn build_num_sub_saturated(
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&mut self,
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dst: Symbol,
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src1: Symbol,
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src2: Symbol,
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layout: InLayout<'a>,
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);
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/// build_num_sub_checked stores the difference of src1 and src2 into dst.
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fn build_num_sub_checked(
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&mut self,
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dst: &Symbol,
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src1: &Symbol,
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src2: &Symbol,
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num_layout: &InLayout<'a>,
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return_layout: &InLayout<'a>,
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);
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/// stores the `src1 & src2` into dst.
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fn build_int_bitwise_and(
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&mut self,
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@ -1758,7 +1758,7 @@ fn build_float_binop<'ctx>(
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};
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match op {
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NumAdd => bd.new_build_float_add(lhs, rhs, "add_float").into(),
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NumAdd | NumAddSaturated => bd.new_build_float_add(lhs, rhs, "add_float").into(),
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NumAddChecked => {
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let context = env.context;
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@ -1785,7 +1785,7 @@ fn build_float_binop<'ctx>(
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struct_value.into()
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}
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NumAddWrap => unreachable!("wrapping addition is not defined on floats"),
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NumSub => bd.new_build_float_sub(lhs, rhs, "sub_float").into(),
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NumSub | NumSubSaturated => bd.new_build_float_sub(lhs, rhs, "sub_float").into(),
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NumSubChecked => {
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let context = env.context;
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@ -1812,8 +1812,7 @@ fn build_float_binop<'ctx>(
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struct_value.into()
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}
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NumSubWrap => unreachable!("wrapping subtraction is not defined on floats"),
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NumMul => bd.new_build_float_mul(lhs, rhs, "mul_float").into(),
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NumMulSaturated => bd.new_build_float_mul(lhs, rhs, "mul_float").into(),
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NumMul | NumMulSaturated => bd.new_build_float_mul(lhs, rhs, "mul_float").into(),
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NumMulChecked => {
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let context = env.context;
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@ -1855,7 +1854,7 @@ fn build_float_binop<'ctx>(
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&bitcode::NUM_POW[float_width],
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),
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_ => {
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unreachable!("Unrecognized int binary operation: {:?}", op);
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unreachable!("Unrecognized float binary operation: {:?}", op);
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}
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}
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}
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@ -2286,6 +2285,9 @@ fn build_dec_binop<'a, 'ctx>(
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rhs,
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"Decimal multiplication overflowed",
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),
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NumAddSaturated => dec_binary_op(env, bitcode::DEC_ADD_SATURATED, lhs, rhs),
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NumSubSaturated => dec_binary_op(env, bitcode::DEC_SUB_SATURATED, lhs, rhs),
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NumMulSaturated => dec_binary_op(env, bitcode::DEC_MUL_SATURATED, lhs, rhs),
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NumDivFrac => dec_binop_with_unchecked(env, bitcode::DEC_DIV, lhs, rhs),
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NumLt => call_bitcode_fn(env, &[lhs, rhs], &bitcode::NUM_LESS_THAN[IntWidth::I128]),
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@ -3000,161 +3000,199 @@ fn u8_mul_greater_than_i8() {
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#[test]
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#[cfg(any(feature = "gen-llvm", feature = "gen-wasm", feature = "gen-dev"))]
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fn add_saturated() {
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assert_evals_to!("Num.addSaturated 200u8 200u8", 255u8, u8);
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assert_evals_to!("Num.addSaturated 100i8 100i8", 127i8, i8);
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assert_evals_to!("Num.addSaturated -100i8 -100i8", -128i8, i8);
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assert_evals_to!("Num.addSaturated 40000u16 40000u16", 65535u16, u16);
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assert_evals_to!("Num.addSaturated 20000i16 20000i16", 32767i16, i16);
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assert_evals_to!("Num.addSaturated -20000i16 -20000i16", -32768i16, i16);
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assert_evals_to!(
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indoc!(
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r"
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x : U8
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x = 200
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y : U8
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y = 200
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Num.addSaturated x y
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"
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),
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255,
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u8
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"Num.addSaturated 3000000000u32 3000000000u32",
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4294967295u32,
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u32
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);
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assert_evals_to!(
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"Num.addSaturated 2000000000i32 2000000000i32",
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2147483647i32,
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i32
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);
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assert_evals_to!(
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"Num.addSaturated -2000000000i32 -2000000000i32",
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-2147483648i32,
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i32
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);
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assert_evals_to!(
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"Num.addSaturated 10000000000000000000u64 10000000000000000000u64",
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18446744073709551615u64,
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u64
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);
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assert_evals_to!(
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"Num.addSaturated 5000000000000000000i64 5000000000000000000i64 ",
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9223372036854775807i64,
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i64
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);
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assert_evals_to!(
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"Num.addSaturated -5000000000000000000i64 -5000000000000000000i64 ",
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-9223372036854775808i64,
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i64
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);
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assert_evals_to!(
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"Num.addSaturated -5000000000000000000i64 -5000000000000000000i64 ",
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-9223372036854775808i64,
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i64
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);
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assert_evals_to!(
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"Num.addSaturated Num.maxF32 Num.maxF32",
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std::f32::INFINITY,
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f32
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);
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assert_evals_to!(
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"Num.addSaturated Num.minF32 Num.minF32",
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std::f32::NEG_INFINITY,
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f32
|
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);
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assert_evals_to!(
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"Num.addSaturated Num.maxF64 Num.maxF64",
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std::f64::INFINITY,
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f64
|
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);
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assert_evals_to!(
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"Num.addSaturated Num.minF64 Num.minF64",
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std::f64::NEG_INFINITY,
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f64
|
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);
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assert_evals_to!(
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indoc!(
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r"
|
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x : I8
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x = 100
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y : I8
|
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y = 100
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Num.addSaturated x y
|
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"
|
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),
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127,
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i8
|
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"Num.addSaturated 170_141_183_460_469_231_731dec 1",
|
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RocDec::from_str("170141183460469231731.687303715884105727").unwrap(),
|
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RocDec
|
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);
|
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|
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assert_evals_to!(
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indoc!(
|
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r"
|
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x : I8
|
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x = -100
|
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y : I8
|
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y = -100
|
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Num.addSaturated x y
|
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"
|
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),
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-128,
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i8
|
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"Num.addSaturated -170_141_183_460_469_231_731dec -1",
|
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RocDec::from_str("-170141183460469231731.687303715884105728").unwrap(),
|
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RocDec
|
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);
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}
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|
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#[test]
|
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#[cfg(any(feature = "gen-llvm", feature = "gen-wasm", feature = "gen-dev"))]
|
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fn sub_saturated() {
|
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assert_evals_to!("Num.subSaturated 1u8 10u8", 0u8, u8);
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assert_evals_to!("Num.subSaturated 100i8 -100i8", 127i8, i8);
|
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assert_evals_to!("Num.subSaturated -100i8 100i8", -128i8, i8);
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assert_evals_to!("Num.subSaturated 1u16 10u16", 0u16, u16);
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assert_evals_to!("Num.subSaturated 20000i16 -20000i16", 32767i16, i16);
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assert_evals_to!("Num.subSaturated -20000i16 20000i16", -32768i16, i16);
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assert_evals_to!("Num.subSaturated 1u32 10u32", 0u32, u32);
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assert_evals_to!(
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indoc!(
|
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r"
|
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x : U8
|
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x = 10
|
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y : U8
|
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y = 20
|
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Num.subSaturated x y
|
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"
|
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),
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0,
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u8
|
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"Num.subSaturated 2000000000i32 -2000000000i32",
|
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2147483647i32,
|
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i32
|
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);
|
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assert_evals_to!(
|
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indoc!(
|
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r"
|
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x : I8
|
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x = -100
|
||||
y : I8
|
||||
y = 100
|
||||
Num.subSaturated x y
|
||||
"
|
||||
),
|
||||
-128,
|
||||
i8
|
||||
"Num.subSaturated -2000000000i32 2000000000i32",
|
||||
-2147483648i32,
|
||||
i32
|
||||
);
|
||||
assert_evals_to!("Num.subSaturated 1u64 10u64", 0u64, u64);
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated 5000000000000000000i64 -5000000000000000000i64 ",
|
||||
9223372036854775807i64,
|
||||
i64
|
||||
);
|
||||
assert_evals_to!(
|
||||
indoc!(
|
||||
r"
|
||||
x : I8
|
||||
x = 100
|
||||
y : I8
|
||||
y = -100
|
||||
Num.subSaturated x y
|
||||
"
|
||||
),
|
||||
127,
|
||||
i8
|
||||
"Num.subSaturated -5000000000000000000i64 5000000000000000000i64 ",
|
||||
-9223372036854775808i64,
|
||||
i64
|
||||
);
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated -5000000000000000000i64 5000000000000000000i64 ",
|
||||
-9223372036854775808i64,
|
||||
i64
|
||||
);
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated Num.maxF32 -Num.maxF32",
|
||||
std::f32::INFINITY,
|
||||
f32
|
||||
);
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated Num.minF32 -Num.minF32",
|
||||
std::f32::NEG_INFINITY,
|
||||
f32
|
||||
);
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated Num.maxF64 -Num.maxF64",
|
||||
std::f64::INFINITY,
|
||||
f64
|
||||
);
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated Num.minF64 -Num.minF64",
|
||||
std::f64::NEG_INFINITY,
|
||||
f64
|
||||
);
|
||||
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated 170_141_183_460_469_231_731dec -1",
|
||||
RocDec::from_str("170141183460469231731.687303715884105727").unwrap(),
|
||||
RocDec
|
||||
);
|
||||
assert_evals_to!(
|
||||
"Num.subSaturated -170_141_183_460_469_231_731dec 1",
|
||||
RocDec::from_str("-170141183460469231731.687303715884105728").unwrap(),
|
||||
RocDec
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[cfg(any(feature = "gen-llvm", feature = "gen-wasm", feature = "gen-dev"))]
|
||||
fn mul_saturated() {
|
||||
assert_evals_to!("Num.mulSaturated 200u8 2", 255u8, u8);
|
||||
assert_evals_to!("Num.mulSaturated 100i8 2", 127i8, i8);
|
||||
assert_evals_to!("Num.mulSaturated -100i8 2", -128i8, i8);
|
||||
assert_evals_to!("Num.mulSaturated 40000u16 2", 65535u16, u16);
|
||||
assert_evals_to!("Num.mulSaturated 20000i16 2", 32767i16, i16);
|
||||
assert_evals_to!("Num.mulSaturated -20000i16 2", -32768i16, i16);
|
||||
assert_evals_to!("Num.mulSaturated 3000000000u32 2", 4294967295u32, u32);
|
||||
assert_evals_to!("Num.mulSaturated 2000000000i32 2", 2147483647i32, i32);
|
||||
assert_evals_to!("Num.mulSaturated -2000000000i32 2", -2147483648i32, i32);
|
||||
assert_evals_to!(
|
||||
indoc!(
|
||||
r"
|
||||
x : U8
|
||||
x = 20
|
||||
y : U8
|
||||
y = 20
|
||||
Num.mulSaturated x y
|
||||
"
|
||||
),
|
||||
255,
|
||||
u8
|
||||
"Num.mulSaturated 10000000000000000000u64 2",
|
||||
18446744073709551615u64,
|
||||
u64
|
||||
);
|
||||
assert_evals_to!(
|
||||
indoc!(
|
||||
r"
|
||||
x : I8
|
||||
x = -20
|
||||
y : I8
|
||||
y = -20
|
||||
Num.mulSaturated x y
|
||||
"
|
||||
),
|
||||
127,
|
||||
i8
|
||||
"Num.mulSaturated 5000000000000000000i64 2",
|
||||
9223372036854775807i64,
|
||||
i64
|
||||
);
|
||||
assert_evals_to!(
|
||||
indoc!(
|
||||
r"
|
||||
x : I8
|
||||
x = 20
|
||||
y : I8
|
||||
y = -20
|
||||
Num.mulSaturated x y
|
||||
"
|
||||
),
|
||||
-128,
|
||||
i8
|
||||
"Num.mulSaturated -5000000000000000000i64 2",
|
||||
-9223372036854775808i64,
|
||||
i64
|
||||
);
|
||||
assert_evals_to!(
|
||||
indoc!(
|
||||
r"
|
||||
x : I8
|
||||
x = -20
|
||||
y : I8
|
||||
y = 20
|
||||
Num.mulSaturated x y
|
||||
"
|
||||
),
|
||||
-128,
|
||||
i8
|
||||
"Num.mulSaturated -5000000000000000000i64 2",
|
||||
-9223372036854775808i64,
|
||||
i64
|
||||
);
|
||||
assert_evals_to!("Num.mulSaturated Num.maxF32 2", std::f32::INFINITY, f32);
|
||||
assert_evals_to!("Num.mulSaturated Num.minF32 2", std::f32::NEG_INFINITY, f32);
|
||||
assert_evals_to!("Num.mulSaturated Num.maxF64 2", std::f64::INFINITY, f64);
|
||||
assert_evals_to!("Num.mulSaturated Num.minF64 2", std::f64::NEG_INFINITY, f64);
|
||||
|
||||
// TODO: This doesn't work anywhere? It returns -1.374607431768211456 : Dec ?
|
||||
/*
|
||||
assert_evals_to!(
|
||||
"Num.mulSaturated 170_141_183_460_469_231_731dec 2",
|
||||
RocDec::from_str("170141183460469231731.687303715884105727").unwrap(),
|
||||
RocDec
|
||||
);
|
||||
assert_evals_to!(
|
||||
indoc!(
|
||||
r"
|
||||
x : I8
|
||||
x = 20
|
||||
y : I8
|
||||
y = 20
|
||||
Num.mulSaturated x y
|
||||
"
|
||||
),
|
||||
127,
|
||||
i8
|
||||
"Num.mulSaturated -170_141_183_460_469_231_731dec 2",
|
||||
RocDec::from_str("-170141183460469231731.687303715884105728").unwrap(),
|
||||
RocDec
|
||||
);
|
||||
*/
|
||||
}
|
||||
|
||||
#[test]
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue