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* [Bug c/105488] New: Function definition is not generated OR function is not inlined @ 2022-05-04 22:31 pavel.morozkin at gmail dot com 2022-05-04 22:36 ` [Bug c/105488] " pinskia at gcc dot gnu.org ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: pavel.morozkin at gmail dot com @ 2022-05-04 22:31 UTC (permalink / raw) To: gcc-bugs 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. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/105488] Function definition is not generated OR function is not inlined 2022-05-04 22:31 [Bug c/105488] New: Function definition is not generated OR function is not inlined pavel.morozkin at gmail dot com @ 2022-05-04 22:36 ` pinskia at gcc dot gnu.org 2022-05-04 22:48 ` redi at gcc dot gnu.org 2022-05-05 14:58 ` pavel.morozkin at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2022-05-04 22:36 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105488 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Right, in C99, inline by itself just says inline or emit a call to the function and have the definition in a different Translation unit. Note C90 didn't have inline and GNU90 has different sematics for inline than C99. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/105488] Function definition is not generated OR function is not inlined 2022-05-04 22:31 [Bug c/105488] New: Function definition is not generated OR function is not inlined pavel.morozkin at gmail dot com 2022-05-04 22:36 ` [Bug c/105488] " pinskia at gcc dot gnu.org @ 2022-05-04 22:48 ` redi at gcc dot gnu.org 2022-05-05 14:58 ` pavel.morozkin at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: redi at gcc dot gnu.org @ 2022-05-04 22:48 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105488 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- See https://gcc.gnu.org/gcc-5/porting_to.html#inline ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/105488] Function definition is not generated OR function is not inlined 2022-05-04 22:31 [Bug c/105488] New: Function definition is not generated OR function is not inlined pavel.morozkin at gmail dot com 2022-05-04 22:36 ` [Bug c/105488] " pinskia at gcc dot gnu.org 2022-05-04 22:48 ` redi at gcc dot gnu.org @ 2022-05-05 14:58 ` pavel.morozkin at gmail dot com 2 siblings, 0 replies; 4+ messages in thread From: pavel.morozkin at gmail dot com @ 2022-05-05 14:58 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105488 --- Comment #3 from Pavel M <pavel.morozkin at gmail dot com> --- To: Andrew Pinski Indeed, per C11: > It is unspecified whether a call to the function uses the inline definition or the external definition. Thanks! ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-05-05 14:58 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-05-04 22:31 [Bug c/105488] New: Function definition is not generated OR function is not inlined pavel.morozkin at gmail dot com 2022-05-04 22:36 ` [Bug c/105488] " pinskia at gcc dot gnu.org 2022-05-04 22:48 ` redi at gcc dot gnu.org 2022-05-05 14:58 ` pavel.morozkin at gmail dot com
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