https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68677
Bug ID: 68677
Summary: Sibcall doesn't work on function with no return
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
[hjl@gnu-6 tmp]$ cat x.c
extern void bar (void) __attribute__ ((noreturn));
void
foo (void)
{
bar ();
}
[hjl@gnu-6 tmp]$ gcc -S x.c -O3
[hjl@gnu-6 tmp]$ cat x.s
.file "x.c"
.section .text.unlikely,"ax",@progbits
.LCOLDB0:
.text
.LHOTB0:
.p2align 4,,15
.globl foo
.type foo, @function
foo:
.LFB0:
.cfi_startproc
subq $8, %rsp
.cfi_def_cfa_offset 16
call bar
.cfi_endproc
.LFE0:
.size foo, .-foo
.section .text.unlikely
.LCOLDE0:
.text
.LHOTE0:
.ident "GCC: (GNU) 5.2.1 20151104 (Red Hat 5.2.1-4)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-6 tmp]$
