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callgraph

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This commit is contained in:
Irmen de Jong 2021-04-05 00:55:27 +02:00
parent 75d5117a2d
commit 2f62271453
1 changed files with 26 additions and 7 deletions
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33
compiler/src/prog8/optimizer/CallGraph.kt
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@ -200,13 +200,32 @@ class CallGraph(private val program: Program, private val asmFileLoader: (filena
return false
}
fun unused(stmt: ISymbolStatement): Boolean {
if(stmt is Subroutine)
return calledBy[stmt].isNullOrEmpty() // TODO also check inline assembly if it uses the subroutine
fun unused(sub: Subroutine): Boolean {
return calledBy[sub].isNullOrEmpty() // TODO also check inline assembly if it uses the subroutine
}
// TODO implement algorithm to check usages of other things:
// stmt can be: Block, Label, VarDecl (including ParameterVarDecl), Subroutine, StructDecl.
// NOTE also check inline assembly blocks that may reference a name.
return false
fun unused(block: Block): Boolean {
return false // TODO implement unused check for Block, also check inline asm
}
fun unused(decl: VarDecl): Boolean {
return false // TODO implement unused check for vardecls, also check inline asm
}
fun unused(struct: StructDecl): Boolean {
return false // TODO implement unused check for struct decls, also check inline asm
}
inline fun unused(label: Label) = false // just always output labels
fun unused(stmt: ISymbolStatement): Boolean {
return when(stmt) {
is Subroutine -> unused(stmt)
is Block -> unused(stmt)
is VarDecl -> unused(stmt)
is Label -> false // just always output labels
is StructDecl -> unused(stmt)
else -> false
}
}
}