https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215333
Bug ID: 215333
Summary: head -r310046 for powerpc family:
sys/powerpc/powerpc/intr_machdep.c's i->trig == -1
if-tests reported as always false by compiler
Product: Base System
Version: CURRENT
Hardware: powerpc
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
--- intr_machdep.o ---
/usr/src/sys/powerpc/powerpc/intr_machdep.c:454:15: warning: comparison of
constant -1 with expression of type 'enum intr_trigger' is always false
[-Wtautological-constant-out-of-range-compare]
if (i->trig == -1)
~~~~~~~ ^ ~~
/usr/src/sys/powerpc/powerpc/intr_machdep.c:500:16: warning: comparison of
constant -1 with expression of type 'enum intr_trigger' is always false
[-Wtautological-constant-out-of-range-compare]
if (i->trig == -1)
~~~~~~~ ^ ~~
Justin Hibbits wrote about the note that I sent him that listed the above:
This may or may not be a problem, depending on optimization settings. Can you
file a bug for this so it doesn't get lost?
I also noted:
There are other comparisons around with a constant
result at compile time. But they tend to be in less
central areas like zfs. Similarly for some other
types of compiler reports.
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