// Declare creates an llvm.dbg.declare call for the specified function
// parameter or local variable.
func (d *DIBuilder) Declare(b llvm.Builder, v ssa.Value, llv llvm.Value, paramIndex int) {
tag := tagAutoVariable
if paramIndex >= 0 {
tag = tagArgVariable
}
var diFile llvm.Metadata
var line int
if file := d.fset.File(v.Pos()); file != nil {
line = file.Line(v.Pos())
diFile = d.getFile(file)
}
localVar := d.builder.CreateLocalVariable(d.scope(), llvm.DILocalVariable{
Tag: tag,
Name: llv.Name(),
File: diFile,
Line: line,
ArgNo: paramIndex + 1,
Type: d.DIType(v.Type()),
})
expr := d.builder.CreateExpression(nil)
d.builder.InsertDeclareAtEnd(llv, localVar, expr, b.GetInsertBlock())
}
