https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114215
--- Comment #3 from cqwrteur <unlvsur at live dot com> ---
test_demovector(checkedvector&):
pushq %rbx
movq %rdi, %rbx
pushq $4
popq %rsi
call checkedvector::operator[](unsigned long)
movq %rbx, %rdi
movq $5, (%rax)
pushq $6
popq %rsi
call checkedvector::operator[](unsigned long)
movq %rbx, %rdi
movq $5, (%rax)
pushq $10
popq %rsi
call checkedvector::operator[](unsigned long)
movq %rbx, %rdi
movq $5, (%rax)
pushq $5
popq %rsi
call checkedvector::operator[](unsigned long)
movq $5, (%rax)
popq %rbx
ret
test_demovector_forceinline(checkedvector&):
movq (%rdi), %rax
movq 8(%rdi), %rdx
subq %rax, %rdx
cmpq $32, %rdx
ja .L7
.L8:
ud2
.L7:
movq $5, 32(%rax)
cmpq $48, %rdx
jbe .L8
movq $5, 48(%rax)
cmpq $80, %rdx
jbe .L8
movq $5, 80(%rax)
movq $5, 40(%rax)
ret
see? first one has more instructions than the 2nd one.
