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calling convention notice

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veclav talica 2023-11-09 21:59:28 +05:00
parent 44b53e4099
commit f2020f7463
1 changed files with 4 additions and 4 deletions
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articles/simd-rect/page.mmd
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@ -37,7 +37,8 @@ pub fn RectSIMD(comptime T: type) type {
### Assembly ###
This is produced by godbolt, which apparently has AVX512 extensions, so, it's extremely compact.
note: SysV prelude and outro are omitted, with inlining you can expect it looking similarly.
Note: Calling prelude and outro are omitted, with inlining you can expect it looking similarly.
Zig calling convention is used, which is roughly equal to C's static marked procedure.
For 32bit floating point:
```asm
@ -148,9 +149,8 @@ For 32bit signed integers it fares amazing too:
AVX512 makes it so that there's no big penalty for double precision types, which is nice.
Note that permutation masks are also supplied along side code which increase binary size.
With inlining it could be quite substantial if per object %rip relative addressing is used.
### Edits ###
- Reordered to use packed vectors without swizzling when possible.
- Eliminated redundant computations.
- Calling convention notice.