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Bug 5438

Summary:	[PATCH] Implement PAUSE_INSTRUCTION for Windows on ARM
Product:	SDL	Reporter:	Cameron Gutman <cameron.gutman>
Component:	atomic	Assignee:	Sam Lantinga <slouken>
Status:	RESOLVED FIXED	QA Contact:	Sam Lantinga <slouken>
Severity:	normal
Priority:	P2
Version:	HG 2.0
Hardware:	ARM
OS:	Windows 10
Attachments:	Patch

Description Cameron Gutman 2021-01-02 19:47:14 UTC

MSVC has a __yield() intrinsic for ARM/ARM64 to generate the YIELD instruction for the inside of spinlock loops. Let's go ahead and use it.

Comment 1 Cameron Gutman 2021-01-02 19:47:52 UTC

Created attachment 4630 [details]
Patch

Comment 2 Sam Lantinga 2021-01-03 18:21:54 UTC

Patch added, thanks!
https://hg.libsdl.org/SDL/rev/240db31a2e01