llvmAttr

Adds an LLVM attribute to a function, without checking the validity or applicability of the attribute. The attribute is specified as key-value pair: @llvmAttr("key", "value") If the value string is empty, just the key is added as attribute.

struct llvmAttr {

string key;

string value;

}

Examples

import ldc.attributes;

@llvmAttr("unsafe-fp-math", "true")
double dot(double[] a, double[] b) {
    double s = 0;
    foreach(size_t i; 0..a.length)
    {
        import ldc.llvmasm: __ir;
        s = __ir!(`%p = fmul fast double %0, %1
                   %r = fadd fast double %p, %2
                   ret double %r`, double)(a[i], b[i], s);
    }
    return s;
}

The OpenD Programming Language

llvmAttr

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