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4 commits

Author SHA1 Message Date
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