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RE: [avr-gcc-list] Unrecognizable insn

From: HutchinsonAndy
Subject: RE: [avr-gcc-list] Unrecognizable insn
Date: Sat, 09 Apr 2005 09:40:37 -0400

I have been unable to reproduce this on gcc 4.1 and 3.3.3

This might be related to versions so check which winavr/gcc you are using.

The code are I got from 3.3.3 put unused arrays on the stack!! The error 
suggests the unrecognised move is the load of frame pointer - so maybe this got 
fixed sometime.

I have not check definition, but I assume that you wanted array on 

"Shubham Jain" <address@hidden> wrote:

>I am facing problem in an image processing program.
>The attached file avr1.c in avr1.zip when executed with the following
>command line produces the error Unrecognizable insn.
>avr-gcc -mmcu=atmega128 avr1.c
>avr1.c: In function `main':
>avr1.c:16: error: unrecognizable insn:
>(insn 29 27 73 0 0x400178c4 (set (reg:HI 55)
>        (const_int 44838 [0xaf26])) -1 (nil)
>    (nil))
>avr1.c:16: internal compiler error: in extract_insn, at recog.c:2175
>Please submit a full bug report,
>with preprocessed source if appropriate.
>See <URL:http://gcc.gnu.org/bugs.html> for instructions.
>A simple for loop is causing the error. If I remove the for loop, then
>there is no such error. The problem is the size of the arrays that I have
>taken but I cannot reduce the size and so I am using external RAM. But the
>problem remains.
>Thanking you,
>Shubham Jain

Andy Hutchinson

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