MathFunctionImpl< VectorWidth, MathOp::Asin > Struct Template Reference

#include <llvmexpr/codegen/llvm/Math.hpp>

Static Public Member Functions
static llvm::Function *	generate (MathFunctionGenerator< VectorWidth > *gen)

Detailed Description

template<int VectorWidth>
struct MathFunctionImpl< VectorWidth, MathOp::Asin >

Definition at line 725 of file Math.hpp.

Member Function Documentation

generate()

template<int VectorWidth>

llvm::Function * MathFunctionImpl< VectorWidth, MathOp::Asin >::generate ( MathFunctionGenerator< VectorWidth > * gen )

inlinestatic

Definition at line 726 of file Math.hpp.

                                                                           {
        constexpr auto OP_INFO = get_math_op_info(MathOp::Asin);
        // asin(x) = pi/2 - acos(x)
        return gen->createFunction(
            OP_INFO.name, OP_INFO.arity,
            [gen](llvm::ArrayRef<llvm::Value*> args) -> llvm::Value* {
                auto* x = args[0];
                auto* pi_div_2 = gen->getConstant(
                    1.5707963267948966F); // NOLINT(cppcoreguidelines-avoid-magic-numbers)
                auto* acos_func =
                    MathFunctionImpl<VectorWidth, MathOp::Acos>::generate(gen);
                auto* acos_x = gen->builder.CreateCall(acos_func, {x});
                return gen->builder.CreateFSub(pi_div_2, acos_x);
            });
    }

References Asin, and get_math_op_info().

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The documentation for this struct was generated from the following file:

• llvmexpr/codegen/llvm/Math.hpp