https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90524
Bug ID: 90524
Summary: attribute name and argument mixed up in an error
message
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
The first message below is backwards: the name of the argument is 'target' and
the argument to it is "foobar":
$ cat x.c && gcc -O2 -S -Wall x.c
__attribute__ ((target ("foobar"))) void foo () { }
__attribute__ ((foobar ("target"))) void bar () { }
x.c:1:42: error: attribute ‘foobar’ argument ‘target’ is unknown
1 | __attribute__ ((target ("foobar"))) void foo () { }
| ^~~
x.c:3:1: warning: ‘foobar’ attribute directive ignored [-Wattributes]
3 | __attribute__ ((foobar ("target"))) void bar () { }
| ^~~~~~~~~~~~~
Contrast that to Clang:
$ clang -S -Wall x.c
x.c:1:25: warning: unsupported 'foobar' in the 'target' attribute string;
'target' attribute ignored [-Wignored-attributes]
__attribute__ ((target ("foobar"))) void foo () { }
^
x.c:3:17: warning: unknown attribute 'foobar' ignored [-Wunknown-attributes]
__attribute__ ((foobar ("target"))) void bar () { }
^
2 warnings generated.
