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Added an utility function to check for quasi-constant addresses (of stack variables).

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acqn 2021-02-08 22:47:51 +08:00 committed by Oliver Schmidt
parent 0a8ca3041a
commit c4a2620e29
2 changed files with 14 additions and 0 deletions
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9
src/cc65/exprdesc.c
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@ -408,6 +408,15 @@ int ED_IsConst (const ExprDesc* Expr)
int ED_IsQuasiConst (const ExprDesc* Expr)
/* Return true if the expression denotes a quasi-constant of some sort. This
** can be a numeric constant, a constant address or a stack variable address.
*/
{
return (Expr->Flags & E_MASK_LOC) == E_LOC_NONE || ED_IsQuasiConstAddr (Expr);
}
int ED_IsConstAddr (const ExprDesc* Expr)
/* Return true if the expression denotes a constant address of some sort. This
** can be the address of a global variable (maybe with offset) or similar.

5
src/cc65/exprdesc.h
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@ -649,6 +649,11 @@ int ED_IsConst (const ExprDesc* Expr);
** similar.
*/
int ED_IsQuasiConst (const ExprDesc* Expr);
/* Return true if the expression denotes a quasi-constant of some sort. This
** can be a numeric constant, a constant address or a stack variable address.
*/
int ED_IsConstAddr (const ExprDesc* Expr);
/* Return true if the expression denotes a constant address of some sort. This
** can be the address of a global variable (maybe with offset) or similar.