diff --git a/hercules_ir/src/ir.rs b/hercules_ir/src/ir.rs
index bf9698b32125832b047ee9a94668bd0a09b93ac9..f91efe584c7422e2d7e1e542fed7141fcf684f53 100644
--- a/hercules_ir/src/ir.rs
+++ b/hercules_ir/src/ir.rs
@@ -1050,6 +1050,38 @@ impl Constant {
_ => false,
}
}
+
+ pub fn is_largest(&self) -> bool {
+ match self {
+ Constant::Integer8(i8::MAX) => true,
+ Constant::Integer16(i16::MAX) => true,
+ Constant::Integer32(i32::MAX) => true,
+ Constant::Integer64(i64::MAX) => true,
+ Constant::UnsignedInteger8(u8::MAX) => true,
+ Constant::UnsignedInteger16(u16::MAX) => true,
+ Constant::UnsignedInteger32(u32::MAX) => true,
+ Constant::UnsignedInteger64(u64::MAX) => true,
+ Constant::Float32(ord) => *ord == OrderedFloat::<f32>(f32::INFINITY),
+ Constant::Float64(ord) => *ord == OrderedFloat::<f64>(f64::INFINITY),
+ _ => false,
+ }
+ }
+
+ pub fn is_smallest(&self) -> bool {
+ match self {
+ Constant::Integer8(i8::MIN) => true,
+ Constant::Integer16(i16::MIN) => true,
+ Constant::Integer32(i32::MIN) => true,
+ Constant::Integer64(i64::MIN) => true,
+ Constant::UnsignedInteger8(u8::MIN) => true,
+ Constant::UnsignedInteger16(u16::MIN) => true,
+ Constant::UnsignedInteger32(u32::MIN) => true,
+ Constant::UnsignedInteger64(u64::MIN) => true,
+ Constant::Float32(ord) => *ord == OrderedFloat::<f32>(f32::NEG_INFINITY),
+ Constant::Float64(ord) => *ord == OrderedFloat::<f64>(f64::NEG_INFINITY),
+ _ => false,
+ }
+ }
}
impl DynamicConstant {
@@ -1098,19 +1130,19 @@ impl DynamicConstant {
}
pub fn is_zero(&self) -> bool {
- if *self == DynamicConstant::Constant(0) {
- true
- } else {
- false
- }
+ *self == DynamicConstant::Constant(0)
}
pub fn is_one(&self) -> bool {
- if *self == DynamicConstant::Constant(1) {
- true
- } else {
- false
- }
+ *self == DynamicConstant::Constant(1)
+ }
+
+ pub fn is_largest(&self) -> bool {
+ *self == DynamicConstant::Constant(usize::MAX)
+ }
+
+ pub fn is_smallest(&self) -> bool {
+ *self == DynamicConstant::Constant(usize::MIN)
}
pub fn try_parameter(&self) -> Option<usize> {
diff --git a/hercules_opt/src/editor.rs b/hercules_opt/src/editor.rs
index b33dc956ecc65d5bef67b804a4ca5a543793b242..57fe204245fc0adf75c8a046cfd9db25ebed119e 100644
--- a/hercules_opt/src/editor.rs
+++ b/hercules_opt/src/editor.rs
@@ -795,22 +795,48 @@ impl<'a, 'b> FunctionEdit<'a, 'b> {
self.add_constant(constant_to_construct)
}
- pub fn add_pos_inf_constant(&mut self, id: TypeID) -> ConstantID {
+ pub fn add_largest_constant(&mut self, id: TypeID) -> ConstantID {
let ty = self.get_type(id).clone();
let constant_to_construct = match ty {
+ Type::Boolean => Constant::Boolean(true),
+ Type::Integer8 => Constant::Integer8(i8::MAX),
+ Type::Integer16 => Constant::Integer16(i16::MAX),
+ Type::Integer32 => Constant::Integer32(i32::MAX),
+ Type::Integer64 => Constant::Integer64(i64::MAX),
+ Type::UnsignedInteger8 => Constant::UnsignedInteger8(u8::MAX),
+ Type::UnsignedInteger16 => Constant::UnsignedInteger16(u16::MAX),
+ Type::UnsignedInteger32 => Constant::UnsignedInteger32(u32::MAX),
+ Type::UnsignedInteger64 => Constant::UnsignedInteger64(u64::MAX),
+ Type::Float8 | Type::BFloat16 => panic!(),
Type::Float32 => Constant::Float32(ordered_float::OrderedFloat(f32::INFINITY)),
Type::Float64 => Constant::Float64(ordered_float::OrderedFloat(f64::INFINITY)),
- _ => panic!(),
+ Type::Control => panic!("PANIC: Can't create largest constant for the control type."),
+ Type::Product(_) | Type::Summation(_) | Type::Array(_, _) => {
+ panic!("PANIC: Can't create largest constant of a collection type.")
+ }
};
self.add_constant(constant_to_construct)
}
- pub fn add_neg_inf_constant(&mut self, id: TypeID) -> ConstantID {
+ pub fn add_smallest_constant(&mut self, id: TypeID) -> ConstantID {
let ty = self.get_type(id).clone();
let constant_to_construct = match ty {
+ Type::Boolean => Constant::Boolean(true),
+ Type::Integer8 => Constant::Integer8(i8::MIN),
+ Type::Integer16 => Constant::Integer16(i16::MIN),
+ Type::Integer32 => Constant::Integer32(i32::MIN),
+ Type::Integer64 => Constant::Integer64(i64::MIN),
+ Type::UnsignedInteger8 => Constant::UnsignedInteger8(u8::MIN),
+ Type::UnsignedInteger16 => Constant::UnsignedInteger16(u16::MIN),
+ Type::UnsignedInteger32 => Constant::UnsignedInteger32(u32::MIN),
+ Type::UnsignedInteger64 => Constant::UnsignedInteger64(u64::MIN),
+ Type::Float8 | Type::BFloat16 => panic!(),
Type::Float32 => Constant::Float32(ordered_float::OrderedFloat(f32::NEG_INFINITY)),
Type::Float64 => Constant::Float64(ordered_float::OrderedFloat(f64::NEG_INFINITY)),
- _ => panic!(),
+ Type::Control => panic!("PANIC: Can't create smallest constant for the control type."),
+ Type::Product(_) | Type::Summation(_) | Type::Array(_, _) => {
+ panic!("PANIC: Can't create smallest constant of a collection type.")
+ }
};
self.add_constant(constant_to_construct)
}
diff --git a/hercules_opt/src/fork_transforms.rs b/hercules_opt/src/fork_transforms.rs
index 283734a009ab3f619910b02465bf9d4d05856bef..e635b3c00d7bfa0090376d8056e65d8d01e60ce2 100644
--- a/hercules_opt/src/fork_transforms.rs
+++ b/hercules_opt/src/fork_transforms.rs
@@ -1556,6 +1556,44 @@ pub fn clean_monoid_reduces(editor: &mut FunctionEditor, typing: &Vec<TypeID>) {
edit.replace_all_uses_where(id, final_op, |u| *u != reduct && *u != final_op)
});
}
+ Node::IntrinsicCall {
+ intrinsic: Intrinsic::Max,
+ args: _,
+ } if !is_smallest(editor, init) => {
+ editor.edit(|mut edit| {
+ let smallest = edit.add_smallest_constant(typing[init.idx()]);
+ let smallest = edit.add_node(Node::Constant { id: smallest });
+ edit.sub_edit(id, smallest);
+ edit = edit.replace_all_uses_where(init, smallest, |u| *u == id)?;
+ let final_op = edit.add_node(Node::IntrinsicCall {
+ intrinsic: Intrinsic::Max,
+ args: Box::new([init, id]),
+ });
+ for u in out_uses {
+ edit.sub_edit(u, final_op);
+ }
+ edit.replace_all_uses_where(id, final_op, |u| *u != reduct && *u != final_op)
+ });
+ }
+ Node::IntrinsicCall {
+ intrinsic: Intrinsic::Min,
+ args: _,
+ } if !is_largest(editor, init) => {
+ editor.edit(|mut edit| {
+ let largest = edit.add_largest_constant(typing[init.idx()]);
+ let largest = edit.add_node(Node::Constant { id: largest });
+ edit.sub_edit(id, largest);
+ edit = edit.replace_all_uses_where(init, largest, |u| *u == id)?;
+ let final_op = edit.add_node(Node::IntrinsicCall {
+ intrinsic: Intrinsic::Min,
+ args: Box::new([init, id]),
+ });
+ for u in out_uses {
+ edit.sub_edit(u, final_op);
+ }
+ edit.replace_all_uses_where(id, final_op, |u| *u != reduct && *u != final_op)
+ });
+ }
_ => {}
}
}
diff --git a/hercules_opt/src/utils.rs b/hercules_opt/src/utils.rs
index 1806d5c740e57a666f98ebf6c0ba40ee9a6461bd..793fe9fabfee830eef97687097aa5e40177a369d 100644
--- a/hercules_opt/src/utils.rs
+++ b/hercules_opt/src/utils.rs
@@ -567,3 +567,29 @@ pub fn is_one(editor: &FunctionEditor, id: NodeID) -> bool {
.unwrap_or(false)
|| nodes[id.idx()].is_undef()
}
+
+pub fn is_largest(editor: &FunctionEditor, id: NodeID) -> bool {
+ let nodes = &editor.func().nodes;
+ nodes[id.idx()]
+ .try_constant()
+ .map(|id| editor.get_constant(id).is_largest())
+ .unwrap_or(false)
+ || nodes[id.idx()]
+ .try_dynamic_constant()
+ .map(|id| editor.get_dynamic_constant(id).is_largest())
+ .unwrap_or(false)
+ || nodes[id.idx()].is_undef()
+}
+
+pub fn is_smallest(editor: &FunctionEditor, id: NodeID) -> bool {
+ let nodes = &editor.func().nodes;
+ nodes[id.idx()]
+ .try_constant()
+ .map(|id| editor.get_constant(id).is_smallest())
+ .unwrap_or(false)
+ || nodes[id.idx()]
+ .try_dynamic_constant()
+ .map(|id| editor.get_dynamic_constant(id).is_smallest())
+ .unwrap_or(false)
+ || nodes[id.idx()].is_undef()
+}
diff --git a/juno_samples/edge_detection/src/cpu.sch b/juno_samples/edge_detection/src/cpu.sch
index 3c3d09b34f9bd8c4b412d4b19e3898769cf2670a..d08e86e62d4002086bc29db2a4682eb5706c429e 100644
--- a/juno_samples/edge_detection/src/cpu.sch
+++ b/juno_samples/edge_detection/src/cpu.sch
@@ -58,6 +58,8 @@ fixpoint {
fork-coalesce(max_gradient);
}
simpl!(max_gradient);
+clean-monoid-reduces(max_gradient);
+xdot[true](max_gradient);
no-memset(reject_zero_crossings@res);
fixpoint {