http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55185
Bug #: 55185
Summary: Error generated on extern inline function which isn't
called
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: hjl.to...@gmail.com
On x86-64:
[hjl@gnu-tools-1 tmp]$ cat y.i
extern double strtod (const char *__restrict __nptr,
char **__restrict __endptr);
extern __inline double
atof (const char *__nptr)
{
return strtod (__nptr, (char **) ((void *)0));
}
[hjl@gnu-tools-1 tmp]$ gcc -S -O y.i
[hjl@gnu-tools-1 tmp]$ cat y.s
.file "y.i"
.ident "GCC: (GNU) 4.7.2 20120921 (Red Hat 4.7.2-2)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-tools-1 tmp]$ gcc -S -O y.i -mno-sse
y.i: In function ‘atof’:
y.i:6:1: error: SSE register return with SSE disabled
[hjl@gnu-tools-1 tmp]$
