On November 19, 2004 10:55 am, you wrote:
The answer is: it's a gcc bug. The attached program should print x = 12.3 y = 12.3
but if compiled with -O or -O2 on Stefan's machine, I get garbage:
$ gcc -O ftest.c $ ./a.out x = 12.3 y = 1.47203e-39 $ gcc -v Reading specs from /usr/lib/gcc-lib/sparc64-unknown-openbsd3.6/3.3.2/specs Configured with: Thread model: single gcc version 3.3.2 (propolice) $
I can confirm this behavior on Solaris 8/sparc 64 as well.
some more datapoints:
solaris 2.9 with gcc 3.1 is broken(-O3 does not help here) linux/sparc64 (debian) with gcc 3.3.5 is broken too
So it looks like at least gcc 3.1 and gcc 3.3.x are affected on Sparc64 on all operating systems.
Stefan
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