http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51751
--- Comment #2 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2012-01-06
02:14:13 UTC ---
The problem appears to be in the test routine zdrvgb, at line
639 (and following) of zdrvgb.f, where the contents of the array
s contain zero for powerpc64 and very low values for x86_64:
On the powerpc machine:
(gdb) up
#1 0x00000000100c88dc in zdrvgb (dotype=..., nn=7, nval=..., nrhs=1,
thresh=30, tsterr=.TRUE., a=..., la=43692,
afb=..., lafb=65472, asav=..., b=..., bsav=..., x=..., xact=..., s=...,
work=..., rwork=..., iwork=..., nout=6)
at zdrvgb.f:639
639 $ WORK, RWORK( 2*NRHS+1 ), INFO )
(gdb) p s
$1 = ()
(gdb) p s(1)
$2 = 0
(gdb) p s(2)
$3 = 0
On the x86_64 machine:
(gdb) p s(1)
$2 = 8.8030696956720451e-293
(gdb) p s(0)
$3 = 30
(gdb) p s(2)
$4 = 7.9525381577453941e-293
(gdb) p s(3)
$5 = 7.627547548164537e-293
