https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105924
Bug ID: 105924
Summary: false floating point exception when evaluating
exponential function
Product: gcc
Version: 7.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: yelinhui at hotmail dot com
Target Milestone: ---
$ gfortran --version
GNU Fortran (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
Copyright (C) 2017 Free Software Foundation, Inc.
$ cat test.f
program test
implicit none
real*8 :: e
e=-4.d2
print *, e, exp(-e*e)
end program test
$ gfortran -O0 -g -fbacktrace
-ffpe-trap=zero,overflow,underflow,invalid,denormal test.f
$./a.out
Program received signal SIGFPE: Floating-point exception - erroneous arithmetic
operation.
Backtrace for this error:
#0 0x1554d03f82ed in ???
#1 0x1554d03f7503 in ???
#2 0x1554cfc8cf0f in ???
#3 0x1554d00c5ea4 in ???
#4 0x1554d004e1fe in ???
#5 0x55b38e68a9d5 in test
at /tmp/test.f:7
#6 0x55b38e68aa54 in main
at /tmp/test.f:9
Floating point exception (core dumped)
