Hello
On 29.07.09, you wrote:
if you have a account you can report that as a Bug.
gcc4 have the advantage its possible to switch in source optimizer on or
off, but how it work, i dont know.
> When I use -O1 with GCC 4.4.0 (-m68060 -fomit-frame-pointer), I get better
> code.
>
> #include
> #in
When I use -O1 with GCC 4.4.0 (-m68060 -fomit-frame-pointer), I get better code.
#include
#include
inline int64_t MUL64(int a, int b)
{
uint32_t resh, resl;
uint32_t au = a;
uint32_t bu = b;
__asm__ ("move.l %0, d5\n\t"
"move.l %1, d4\n\t"
"moveq #16, d3\n\t"
"move.l %0, d2\n\t"
"mulu %1, %0\
Hi,
Here is a C source code which I compiled with GCC 3.4.0 and GCC 4.4.0. GCC
3.4.0 output looks a lot better.
#include
#include
#define umul_ppmm(xh, xl, a, b) \
__asm__ ("| Inlined umul_ppmm\n" \
" move.l %0,%/d5\n" \
" move.l %1,%/d4\n" \
" moveq #16,%/d3\n" \
" move.l %0,%/d2\n" \
" mulu
