https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110957
Bug ID: 110957
Summary: -ffpe-trap and -ffpe-summary options issues
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: ubizjak at gmail dot com
Target Milestone: ---
A couple of issues with -ffpe-trap and -ffpe-summary options:
a) Invalid argument report should be switched:
$ gfortran -ffpe-summary=aaa ac.f90
f951: Fatal Error: Argument to ‘-ffpe-trap’ is not valid: aaa
compilation terminated.
$ gfortran -ffpe-trap=aaa ac.f90
f951: Fatal Error: Argument to ‘-ffpe-summary’ is not valid: aaa
compilation terminated.
b) Specifying also -fno-trapping-math should be detected and handled
$ gfortran -ffpe-trap=invalid -fno-trapping-math ac.f90
[no diagnostics]
The issue b) should either report incompatibility between options, or force
-ftrapping-math (probably with a warning). Ideally, -ffpe-* should always set
flag_trapping_math, in case the compiler switches to no trapping math by
default in future.
