egcs1.1 generates bad code on Alpha

kuball@zedo.fuedo.de kuball@zedo.fuedo.de
Wed Sep 30 07:02:00 GMT 1998


Hi!

If I run the program build from the appended files I get the output

	0 1 0 = 0 0 0

which is wrong.

The system is a DEC Alpha with OSF/1 3.2 and egcs is:

Reading specs from /usr/local/lib/gcc-lib/alpha-dec-osf3.2/egcs-2.91.57/specs
gcc version egcs-2.91.57 19980901 (egcs-1.1 release)

The problem does not appear on X86. There are four ways to get rid of
the bug:
	1. compile withou -O2
	2. don't use an inline function for
		G3DVector3<T>& G3DVector3<T>::operator=( const TVector<T,3> &tv )
	3. don't use (const double*) operator in g3dvector.h:49, but
	   tv._data instead.
	4. break the statement in main.cpp:34 into two statements.

Martin Kuball


-------------- next part --------------
A non-text attachment was scrubbed...
Name: bin00000.bin
Type: application/x-gzip
Size: 2918 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-bugs/attachments/19980930/d27951d2/attachment.bin>


More information about the Gcc-bugs mailing list