On 19.09.2014 17:30, Daniel Murphy wrote:
"Chris" wrote in message news:kcsnboocxeykhknjl...@forum.dlang.org...
Out of curiosity. dmd still produces the if statement, although it
ain't gonna happen. Same is true of "DoIt.yes". I know, it's an
unlikely and marginal example.
No it doesn't, here's main:
_Dmain:
push RBP
mov RBP,RSP
mov EDI,1
call _D7dump_if4doitFE7dump_if4DoItZv@PC32
xor EAX,EAX
pop RBP
ret
0f1f
add [RAX],R8B
.text._Dmain ends
See, no branches or comparisons.
The branch is still in the doIt function:
> _D7dump_if4doitFE7dump_if4DoItZv:
> push RBP
> mov RBP,RSP
> sub RSP,010h
> mov -8[RBP],EDI
> cmp dword ptr -8[RBP],0
> jne L29
dmd didn't do any inlining at all. It is very restrained with inlining,
you'll get much better results with GDC or LDC.
