[8057] in Athena Bugs
decmips 7.3M: f77
daemon@ATHENA.MIT.EDU (ellis@ATHENA.MIT.EDU)
Wed Aug 28 09:55:49 1991
From: ellis@ATHENA.MIT.EDU
To: testers@MIT.EDU
Date: Wed, 28 Aug 91 09:56:03 EDT
System name: m33-222-9
Type and version: KN01 7.3M
Display type: PMAX-MFB
What were you trying to do?
compile and run the following test program with the "-O0" flag
(no optimization).
real*4 a,b,c
integer i,j,k
i = 1
k = 0
a = 0.0
b = 2.0
c = a**i
write(6,*) c
c = b**k
write(6,*) c
c = a**k
write(6,*) c
stop
end
What's wrong:
The program dies on line 11, c=a**k, with the following error:
Trace/BPT trap
when compiled with the default optimization, the program runs without
error
What should have happened:
The program should give the same results for both optimization and
no optimization.
Please describe any relevant documentation references: