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From: Shan Hai <shan.hai@windriver.com>
To: linuxppc-dev@lists.ozlabs.org
Subject: math_efp.c: Fixed SPE data type conversion failure
Date: Wed, 17 Nov 2010 10:28:52 +0800
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The following test case failed on Powerpc sbc8548 with CONFIG_SPE

static float fm;
static signed int si_min = (-2147483647 - 1);
static unsigned int ui;
int main()
{
        fm = (float) si_min; ;
        ui = (unsigned int)fm;
        printf("ui=%d, should be %d\n", ui, si_min);

        return 0;
}
Result: ui=-1, should be -2147483648

The reason is failure to emulate the minus float to unsigned integer conversion 
instruction in the SPE driver.