[sdcc-devel] [ sdcc-Bugs-3150679 ] validateOpType failed in OP_DEFS(sym)

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Bugs item #3150679, was opened at 2011-01-04 00:45
Message generated for change (Comment added) made by maartenbrock
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>Category: Icode generator
>Group: fixed
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: DavidEGrayson ()
>Assigned to: Maarten Brock (maartenbrock)
Summary: validateOpType failed in OP_DEFS(sym)

Initial Comment:
Hello.  I've found another bug in SDCC that occurs when you try to cast an address to a pointer, then dereference the pointer and assign a value to it.  Here is the code:

unsigned char __data *p;
void f()
{
	while(1)
	{
		*((unsigned char __data *)0) = *p;
	}
}

The command I used to run SDCC was `sdcc -c test.c`.

My SDCC version is:
SDCC : mcs51/gbz80/z80/ds390/pic16/pic14/TININative/ds400/hc08 3.0.1 #6092 (Dec 30 2010) (MINGW32)

The error message I get is:

Internal error: validateOpType failed in OP_DEFS(sym) @ /home/sdcc-builder/build
/sdcc-build/orig/sdcc/src/SDCCloop.c:339: expected symbol, got value

This bug also occurs for variables that are in other memory spaces like __xdata.  One workaround for this bug is to declare the variable ahead of time, as a static variable with an __at() to put it at the right address.



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>Comment By: Maarten Brock (maartenbrock)
Date: 2011-02-06 22:42

Message:
Fixed in SDCC 3.0.1 #6213.

----------------------------------------------------------------------

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