[Issue 19575] New: core.cpuid not usable without a runtime
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Fri Jan 11 11:57:24 UTC 2019
https://issues.dlang.org/show_bug.cgi?id=19575
Issue ID: 19575
Summary: core.cpuid not usable without a runtime
Product: D
Version: D2
Hardware: All
OS: All
Status: NEW
Severity: blocker
Priority: P1
Component: druntime
Assignee: nobody at puremagic.com
Reporter: aliloko at gmail.com
core.cpuid relias on
static shared this()
for initialization.
Without a D runtime, such initializers are never called. So we had to duplicate
core.cpuid.
It goes further, as rounding mode in Phobos uses the runtime variable `sse`
from `core.cpuid`. Again, this makes FloatingPointControl not usable
Why do I need `FloatingPointControl` in -betterC?
I'm implementing intel-intrinsics for both DMD and LDC, and the slow compatible
path has to have the same rounding-mode.
But `intel-intrinsics` package is intended to work in any situation, with or
without runtime.
***The only thing needed is a way to initialized core.cpuid with a function
call.***
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