[sdcc-devel] [ sdcc-Bugs-1962613 ] Array of pointers in struct code generation error

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Bugs item #1962613, was opened at 2008-05-12 22:11
Message generated for change (Comment added) made by spth
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Philipp Krause (spth)
Assigned to: Nobody/Anonymous (nobody)
Summary: Array of pointers in struct code generation error

Initial Comment:
This bug might be the same as #1812570.

A small sample is attached.

On gcc f() return 1.
On sdcc 

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>Comment By: Philipp Krause (spth)
Date: 2008-05-12 22:16

Message:
Logged In: YES 
user_id=564030
Originator: YES

Sorry, I accidently hit the submit button.

On sdcc there's an additional indirection. Instead of returning the
expected value sdcc treats the expected value and whatever byte might be
next as a pointer and the value it points to.

Here's the generated asm (using sdcc -mz80 --fverbose-asm test.c):

;	genPointerGet
	ld	hl,#_x
	ld	c,(hl)
	inc	hl
	ld	b,(hl)
;	genPointerGet
	ld	l,c
	ld	h,b        #_y NOW IN HL
	ld	c,(hl)     1 NOW IN C
	inc	hl
	ld	b,(hl)
;	genPointerGet
	ld	a,(bc)



_f_end::
_y:
	.db #0x01
_x:
	.dw _y
	.area _CODE
	.area _CABS

While I use the Z80 port this probably affects all ports.

Philipp

File Added: test.asm

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