On Sunday, 28 January 2018 at 14:33:04 UTC, Johan Engelen wrote:
Careful with these comparisons guys. Know what you are looking
at.
Wise words
On 01/27/2018 11:42 AM, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
Careful with these comparisons guys. Know what you are looking at.
Rust does not eliminate setting the framepointer register, and so
it looks "bad" [1].
Clang also sets the framepointer for macOS ABI regardless of
On 01/27/2018 11:42 AM, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
According to that link D and C++ both produce 4 lines of assembly, Rust
7, and Go 38 (for that function).
Ali
On Saturday, 27 January 2018 at 19:43:50 UTC, Stefan Koch wrote:
On Saturday, 27 January 2018 at 19:42:01 UTC, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
The actual code is :
imul edi, edi
mov eax, edi
ret
The rest is runtime initialization.
which you can remove using an
On Saturday, 27 January 2018 at 19:43:50 UTC, Stefan Koch wrote:
On Saturday, 27 January 2018 at 19:42:01 UTC, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
The actual code is :
imul edi, edi
mov eax, edi
ret
The rest is runtime initialization.
which you can remove using an
On Sat, Jan 27, 2018 at 07:41:21PM +, Matt via Digitalmars-d-learn wrote:
> Playing around with Godbolt, D seems to generate an embarassing amount
> of assembly for a simple function (50ish for squaring an int vs 4 for
> C++ and 7 for Rust). Even Go compiles to less assembly.
>
> Is there
On Saturday, 27 January 2018 at 19:45:35 UTC, Stefan Koch wrote:
ah ... -betterC is only for dmd.
`-betterC` works from LDC 1.1.0.
- Johan
On Saturday, 27 January 2018 at 19:43:50 UTC, Stefan Koch wrote:
On Saturday, 27 January 2018 at 19:42:01 UTC, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
The actual code is :
imul edi, edi
mov eax, edi
ret
Could you please paste the source code? I mean in say 5 years
when
On Saturday, 27 January 2018 at 19:43:50 UTC, Stefan Koch wrote:
On Saturday, 27 January 2018 at 19:42:01 UTC, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
The actual code is :
imul edi, edi
mov eax, edi
ret
The rest is runtime initialization.
which you can remove using an
Godbolt link: https://godbolt.org/g/t5S976
Playing around with Godbolt, D seems to generate an embarassing
amount of assembly for a simple function (50ish for squaring an
int vs 4 for C++ and 7 for Rust). Even Go compiles to less
assembly.
Is there something I'm missing?
On Saturday, 27 January 2018 at 19:42:01 UTC, Matt wrote:
Godbolt link: https://godbolt.org/g/t5S976
The actual code is :
imul edi, edi
mov eax, edi
ret
The rest is runtime initialization.
which you can remove using an undocumented -betterC switch.
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