http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43716
--- Comment #34 from Uros Bizjak <ubizjak at gmail dot com> 2012-07-21 12:16:42 UTC --- Maybe no problem with gcc at all: Compile doduc.f90 with -g -O3 -ffast-math -ffpe-trap=invalid Starting program: /home/uros/pb11/lin/source/a.out MAIN : FIN S00002 MAIN : FIN S00001 MAIN : FIN S00011 MAIN : FIN S00022 Program received signal SIGFPE, Arithmetic exception. 0x0000000000402a71 in s00018 (i12=0, i21=0, iorg=0) at doduc.f90:3789 3789 & dtpa = 2.*sens*DABS(TMI(k)/DTMi(k)) (gdb) disass 0x0000000000402a4f <+431>: movsd 0x229e61(%rip),%xmm3 # 0x62c8b8 <aaa11_+856> 0x0000000000402a57 <+439>: movsd %xmm3,0x100(%rsp) 0x0000000000402a60 <+448>: movsd 0x21c790(%rip),%xmm3 # 0x61f1f8 <aaa77_+19416> 0x0000000000402a68 <+456>: movsd 0x100(%rsp),%xmm6 => 0x0000000000402a71 <+465>: divsd %xmm3,%xmm0 0x0000000000402a75 <+469>: addsd %xmm6,%xmm6 0x0000000000402a79 <+473>: andpd %xmm1,%xmm3 0x0000000000402a7d <+477>: andpd %xmm1,%xmm0 (gdb) i r xmm3 xmm0 xmm3 0 xmm0 0 To me, it looks like invalid test. Any fortraners here to share their opinion?
