avr-gcc-list
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [avr-gcc-list] Bug in *rotlsi3 insns?


From: Anatoly Sokolov
Subject: Re: [avr-gcc-list] Bug in *rotlsi3 insns?
Date: Mon, 23 Mar 2009 22:55:06 +0300

Hi.

Consider this test case:

unsigned long rotl (int dummy, unsigned long x)
{
    return (x << 8) | (x >> 24);
}

Compile with, e.g.
   avr-gcc -mmcu=atmega8 -S -Os -fno-split-wide-types

This will map 0x33221100 to 0x33110033 instead of to 0x22110033



Please test the patch.

And what version is this on?

Eric, this is GCC 4.4 bug.

Anatoly.

Attachment: rotlsi3.diff
Description: Binary data


reply via email to

[Prev in Thread] Current Thread [Next in Thread]