https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68637
Bug ID: 68637
Summary: Wrong -Wattributes on array of function pointers
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
hjl@gnu-6 gcc]$ cat y.c
typedef void (*func) (int, int) __attribute__ ((regparm (2)));
extern func foo[10];
extern void (*bar[10]) (int, int) __attribute__ ((regparm (2)));
void
xxx (int i)
{
foo[i] (1, 2);
bar[i] (1, 2);
}
[hjl@gnu-6 gcc]$ gcc -S -m32 -O2 y.c
y.c:3:1: warning: ‘regparm’ attribute only applies to function types
[-Wattributes]
extern void (*bar[10]) (int, int) __attribute__ ((regparm (2)));
^
[hjl@gnu-6 gcc]$ /export/build/gnu/llvm-clang/build-x86_64-linux/bin/clang -S
-m32 -O2 y.c
[hjl@gnu-6 gcc]$
