On 13/12/12 21:51, denisgolovan wrote:
Hi all
Recently I discovered that fpc refuses to use registers in my loops even with
optimization turned on (-O1,-O3 used).
With the asm code commented out and without any optimization, the
registers are used.
.Ll12:
# [47] for i:=1 to 100000000 do
movl $1,%ebx
decl %ebx
.balign 4,0x90
.Lj80:
incl %ebx
.Ll13:
# [48] Inc(i2);
incl %eax
.Ll14:
cmpl $100000000,%ebx
jb .Lj80
...
.Ll18:
# [53] i:=1;
movl $1,%ebx
.balign 4,0x90
.Lj111:
.Ll19:
# [55] Inc(i);
incl %ebx
.Ll20:
# [56] until i>100000000;
cmpl $100000000,%ebx
jna .Lj111
...
.Ll24:
# [61] i:=1;
movl $1,%ebx
.Ll25:
# [62] while i<100000000 do
jmp .Lj145
.balign 4,0x90
.Lj144:
.Ll26:
# [63] Inc(i);
incl %ebx
.Lj145:
.Ll27:
cmpl $100000000,%ebx
jb .Lj144
Stephano
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