https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105488
Bug ID: 105488
Summary: Function definition is not generated OR function is
not inlined
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: pavel.morozkin at gmail dot com
Target Milestone: ---
Note: probably this is a duplicate.
This code:
inline void f(void)
{
}
int main(void)
{
f();
}
leads to this code:
.file "t609.c"
.text
.def __main; .scl 2; .type 32; .endef
.globl main
.def main; .scl 2; .type 32; .endef
.seh_proc main
main:
pushq %rbp
.seh_pushreg %rbp
movq %rsp, %rbp
.seh_setframe %rbp, 0
subq $32, %rsp
.seh_stackalloc 32
.seh_endprologue
call __main
call f
movl $0, %eax
addq $32, %rsp
popq %rbp
ret
.seh_endproc
.ident "GCC: (GNU) 11.1.0"
.def f; .scl 2; .type 32; .endef
Here we see that "call f" is present, while "f:" is absent.
As a result:
$ gcc t609.c
ld: /tmp/cc8z1GjU.o:t609.c:(.text+0xe): undefined reference to `f'
collect2: error: ld returned 1 exit status
I think that:
- either function definition is not generated,
- either function is not inlined.
