Halide 22.0.0 Halide compiler and libraries

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FindIntrinsics.h
Go to the documentation of this file.
1#ifndef HALIDE_FIND_INTRINSICS_H
2#define HALIDE_FIND_INTRINSICS_H
3
4/** \file
5 * Tools to replace common patterns with more readily recognizable intrinsics.
6 */
7
8#include "IR.h"
9
10 namespace Halide {
11 namespace Internal {
12
13/** Implement intrinsics with non-intrinsic using equivalents. */
14 Expr lower_widen_right_add(const Expr &a, const Expr &b);
15 Expr lower_widen_right_mul(const Expr &a, const Expr &b);
16 Expr lower_widen_right_sub(const Expr &a, const Expr &b);
17 Expr lower_widening_add(const Expr &a, const Expr &b);
18 Expr lower_widening_mul(const Expr &a, const Expr &b);
19 Expr lower_widening_sub(const Expr &a, const Expr &b);
20 Expr lower_widening_shift_left(const Expr &a, const Expr &b);
21 Expr lower_widening_shift_right(const Expr &a, const Expr &b);
22
23 Expr lower_rounding_shift_left(const Expr &a, const Expr &b);
24 Expr lower_rounding_shift_right(const Expr &a, const Expr &b);
25
26 Expr lower_saturating_add(const Expr &a, const Expr &b);
27 Expr lower_saturating_sub(const Expr &a, const Expr &b);
28 Expr lower_saturating_cast(const Type &t, const Expr &a);
29
30 Expr lower_halving_add(const Expr &a, const Expr &b);
31 Expr lower_halving_sub(const Expr &a, const Expr &b);
32 Expr lower_rounding_halving_add(const Expr &a, const Expr &b);
33 Expr lower_sorted_avg(const Expr &a, const Expr &b);
34
35 Expr lower_mul_shift_right(const Expr &a, const Expr &b, const Expr &q);
36 Expr lower_rounding_mul_shift_right(const Expr &a, const Expr &b, const Expr &q);
37
38/** Replace one of the above ops with equivalent arithmetic. */
39 Expr lower_intrinsic(const Call *op);
40
41/** Replace common arithmetic patterns with intrinsics. */
42 Stmt find_intrinsics(const Stmt &s);
43 Expr find_intrinsics(const Expr &e);
44
45/** The reverse of find_intrinsics. */
46 Expr lower_intrinsics(const Expr &e);
47 Stmt lower_intrinsics(const Stmt &s);
48
49} // namespace Internal
50} // namespace Halide
51
52#endif
IR.h
Subtypes for Halide expressions (Halide::Expr) and statements (Halide::Internal::Stmt)
Halide::Internal::lower_sorted_avg
Expr lower_sorted_avg(const Expr &a, const Expr &b)
Halide::Internal::lower_widen_right_add
Expr lower_widen_right_add(const Expr &a, const Expr &b)
Implement intrinsics with non-intrinsic using equivalents.
Halide::Internal::lower_mul_shift_right
Expr lower_mul_shift_right(const Expr &a, const Expr &b, const Expr &q)
Halide::Internal::lower_halving_sub
Expr lower_halving_sub(const Expr &a, const Expr &b)
Halide::Internal::lower_halving_add
Expr lower_halving_add(const Expr &a, const Expr &b)
Halide::Internal::lower_rounding_halving_add
Expr lower_rounding_halving_add(const Expr &a, const Expr &b)
Halide::Internal::lower_widening_shift_left
Expr lower_widening_shift_left(const Expr &a, const Expr &b)
Halide::Internal::lower_saturating_add
Expr lower_saturating_add(const Expr &a, const Expr &b)
Halide::Internal::lower_widening_add
Expr lower_widening_add(const Expr &a, const Expr &b)
Halide::Internal::lower_saturating_cast
Expr lower_saturating_cast(const Type &t, const Expr &a)
Halide::Internal::lower_widening_shift_right
Expr lower_widening_shift_right(const Expr &a, const Expr &b)
Halide::Internal::lower_intrinsics
Expr lower_intrinsics(const Expr &e)
The reverse of find_intrinsics.
Halide::Internal::lower_widen_right_sub
Expr lower_widen_right_sub(const Expr &a, const Expr &b)
Halide::Internal::lower_widen_right_mul
Expr lower_widen_right_mul(const Expr &a, const Expr &b)
Halide::Internal::lower_rounding_shift_right
Expr lower_rounding_shift_right(const Expr &a, const Expr &b)
Halide::Internal::lower_widening_sub
Expr lower_widening_sub(const Expr &a, const Expr &b)
Halide::Internal::find_intrinsics
Stmt find_intrinsics(const Stmt &s)
Replace common arithmetic patterns with intrinsics.
Halide::Internal::lower_intrinsic
Expr lower_intrinsic(const Call *op)
Replace one of the above ops with equivalent arithmetic.
Halide::Internal::lower_rounding_mul_shift_right
Expr lower_rounding_mul_shift_right(const Expr &a, const Expr &b, const Expr &q)
Halide::Internal::lower_widening_mul
Expr lower_widening_mul(const Expr &a, const Expr &b)
Halide::Internal::lower_saturating_sub
Expr lower_saturating_sub(const Expr &a, const Expr &b)
Halide::Internal::lower_rounding_shift_left
Expr lower_rounding_shift_left(const Expr &a, const Expr &b)
Halide
This file defines the class FunctionDAG, which is our representation of a Halide pipeline,...
Definition AbstractGenerator.h:19
Halide::LinkageType::Internal
@ Internal
Not visible externally, similar to 'static' linkage in C.
Halide::cast
Internal::ConstantInterval cast(Type t, const Internal::ConstantInterval &a)
Cast operators for ConstantIntervals.
Halide::Expr
A fragment of Halide syntax.
Definition Expr.h:258
Halide::Internal::Call
A function call.
Definition IR.h:500
Halide::Internal::Stmt
A reference-counted handle to a statement node.
Definition Expr.h:427
Halide::Type
Types in the halide type system.
Definition Type.h:281