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Fixed crash with non-inlined __fastcall__ function invocation with no arguments.

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acqn
2021-03-26 11:02:46 +08:00
parent 3755e4a863
commit f273b1ebcb
1 changed files with 3 additions and 2 deletions
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5
src/cc65/expr.c
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@@ -835,7 +835,7 @@ static unsigned FunctionParamList (FuncDesc* Func, int IsFastcall, ExprDesc* ED)
/* Append last deferred inc/dec before the function is called. /* Append last deferred inc/dec before the function is called.
** The last parameter needs to be preserved if it is passed in AX/EAX Regs. ** The last parameter needs to be preserved if it is passed in AX/EAX Regs.
*/ */
DoDeferred (IsFastcall ? SQP_KEEP_EAX : SQP_KEEP_NONE, &Expr); DoDeferred (IsFastcall && PushedCount > 0 ? SQP_KEEP_EAX : SQP_KEEP_NONE, &Expr);
/* Check if we had enough arguments */ /* Check if we had enough arguments */
if (PushedCount < Func->ParamCount) { if (PushedCount < Func->ParamCount) {
@@ -928,7 +928,8 @@ static void FunctionCall (ExprDesc* Expr)
} }
/* If we didn't inline the function, get fastcall info */ /* If we didn't inline the function, get fastcall info */
IsFastcall = IsFastcallFunc (Expr->Type); IsFastcall = (Func->ParamCount > 0 || (Func->Flags & FD_EMPTY) != 0) &&
IsFastcallFunc (Expr->Type);
} }
/* Parse the parameter list */ /* Parse the parameter list */