Hi,
I am sure this bug has been reported before, but I am
not able to track it down in bugzilla. Someone kindly
refer me to the relevant bug report.
-- Bug in -O2 level with following code construct,
#define FTYPE float
FTYPE fir_basic (FTYPE input, int ntaps, FTYPE h[],
FTYPE z[]);
for (ii = 0; ii < IMP_SIZE; ii++) {
outputi = fir_basic(input[ii], NTAPS, h, z);
printf ("%08x, ",*((int *)(&outputi)));
}
The floating point store to outputi occurs AFTER the
push of the arguments onto the stack for printf
occurs. Hence the printfs are shifted by one sample.
The bug goes away when I compile at -O1.
I can reproduce this error on gcc version 3.2.3
20030502 (Red Hat Linux 3.2.3-20) and powerpc-eabi-gcc
3.4.1.
Any info will be appreciated, so that I can track this
bug.
thanks,
Vasanth
=====
"..When all are one and one is all,
To be a ROCK and not to Roll.."
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