https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114215
--- Comment #4 from cqwrteur <unlvsur at live dot com> ---
void test_demovector(checkedvector& vec, __SIZE_TYPE__ x) noexcept
{
for(__SIZE_TYPE__ i = 0; i < x; i++)
vec[i]=5;
}
void test_demovector_forceinline(checkedvector& vec, __SIZE_TYPE__ x) noexcept
{
for(__SIZE_TYPE__ i = 0; i < x; i++)
vec.index_forceinline(i)=5;
}
still more instructions for the first one even with a loop.
test_demovector(checkedvector&, unsigned long):
pushq %r12
movq %rdi, %r12
pushq %rbp
movq %rsi, %rbp
pushq %rbx
xorl %ebx, %ebx
.L10:
cmpq %rbp, %rbx
je .L13
movq %rbx, %rsi
movq %r12, %rdi
incq %rbx
call checkedvector::operator[](unsigned long)
movq $5, (%rax)
jmp .L10
.L13:
popq %rbx
popq %rbp
popq %r12
ret
test_demovector_forceinline(checkedvector&, unsigned long):
xorl %eax, %eax
.L15:
cmpq %rsi, %rax
je .L18
movq (%rdi), %rcx
movq 8(%rdi), %rdx
subq %rcx, %rdx
sarq $3, %rdx
cmpq %rdx, %rax
jb .L16
ud2
.L16:
movq $5, (%rcx,%rax,8)
incq %rax
jmp .L15
.L18:
ret
