Function AddStandardAttributes

transform/transform.go:23–38

AddStandardAttributes is a helper function to add standard function attributes to a function. For example, it adds optsize when requested from the -opt= compiler flag.

(fn llvm.Value, config *compileopts.Config)

// attributes to a function. For example, it adds optsize when requested from
// the -opt= compiler flag.
func AddStandardAttributes(fn llvm.Value, config *compileopts.Config) {
	ctx := fn.Type().Context()
	_, _, sizeLevel := config.OptLevel()
	if sizeLevel >= 1 {
		fn.AddFunctionAttr(ctx.CreateEnumAttribute(llvm.AttributeKindID("optsize"), 0))
	}
	if sizeLevel >= 2 {
		fn.AddFunctionAttr(ctx.CreateEnumAttribute(llvm.AttributeKindID("minsize"), 0))
	}
	if config.CPU() != "" {
		fn.AddFunctionAttr(ctx.CreateStringAttribute("target-cpu", config.CPU()))
	}
	if config.Features() != "" {
		fn.AddFunctionAttr(ctx.CreateStringAttribute("target-features", config.Features()))
	}
}