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fix compiler crash for non-const array literals

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This commit is contained in:
Irmen de Jong 2019-01-31 23:47:48 +01:00
parent 73b0cc4056
commit b911a95fc2
2 changed files with 6 additions and 2 deletions
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5
compiler/src/prog8/optimizing/ConstantFolding.kt
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@ -33,7 +33,7 @@ class ConstantFolding(private val namespace: INameScope, private val heap: HeapV
if(decl.type==VarDeclType.CONST || decl.type==VarDeclType.VAR) {
val litval = decl.value as? LiteralValue
if(litval!=null && litval.isArray)
if(litval!=null && litval.isArray && litval.heapId!=null)
fixupArrayTypeOnHeap(decl, litval)
when(decl.datatype) {
DataType.FLOAT -> {
@ -97,9 +97,10 @@ class ConstantFolding(private val namespace: INameScope, private val heap: HeapV
private fun fixupArrayTypeOnHeap(decl: VarDecl, litval: LiteralValue) {
// fix the type of the array value that's on the heap, to match the vardecl.
// notice that checking the bounds of the actual values is not done here, but in the AstChecker later.
if(decl.datatype==litval.type)
return // already correct datatype
val heapId = litval.heapId!!
val heapId = litval.heapId ?: throw FatalAstException("expected array to be on heap $litval")
val array=heap.get(heapId)
when(decl.datatype) {
DataType.ARRAY_UB, DataType.ARRAY_B, DataType.ARRAY_UW, DataType.ARRAY_W -> {

3
compiler/src/prog8/optimizing/StatementOptimizer.kt
View File

@ -8,6 +8,9 @@ import kotlin.math.floor
/*
todo: subroutines with 1 or 2 byte args or 1 word arg can be converted to asm sub calling convention (args in registers)
todo: implement usage counters for blocks, variables, subroutines, heap variables. Then:
todo remove unused blocks
todo remove unused variables