8 commits

Author	SHA1	Message	Date
Wim Taymans	3b422e31a2	cpu: add SLOW_GATHER flag ... Intel Skylake (level 0x16) is the first model with fast gather opcodes. Mark lower versions with the SLOW_GATHER flag. Prefer the SSE2 version of the format conversion without gather when SLOW_GATHER is set. Makes the conversion much faster on my Ivy Bridge.	2026-03-19 16:21:35 +01:00
Barnabás Pőcze	934ab3036e	treewide: use SPDX tags to specify copyright information ... SPDX tags make the licensing information easy to understand and clear, and they are machine parseable. See https://spdx.dev for more information.	2023-02-16 10:54:48 +00:00
Demi Marie Obenour	e8f3450a58	Fix various compiler warnings ... These caused build failures with -Werror.	2022-10-06 12:12:35 -04:00
Wim Taymans	84ecebbd4e	cpu: only run SSE code when supported ... Check if we can run SSE instructions before executing the denormals SSE code. Fixes #1775	2021-11-02 20:12:35 +01:00
Wim Taymans	14fd5425af	cpu: use intrinsics to modify status register ... For better portability. Also only use the code when we can compile with SSE is available.	2021-10-13 15:00:09 +02:00
Wim Taymans	85d5c8cd6c	cpu: add zero_denormals method ... Add a method to enable/disable the denormals flush-to-zero and denormals-as-zero CPU options. Add a config option to make it possible to disable this again. Fixes high CPU usage when dealing with denormals, which can happen in many DSP functions. Fixes #1681	2021-10-11 14:57:02 +02:00
Wim Taymans	7104df1b21	cpu: detect MMXEXT as well	2018-12-17 13:37:27 +01:00
Wim Taymans	9ca9fda253	cpu: add cpu support implementation	2018-12-17 13:25:27 +01:00