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ac40c3bb07
On some platforms (in particular, ARM/AArch64), the implementation of AV_READ_TIME() may use a privileged instruction - in such cases, benchmarking just fails with a SIGILL. Instead of crashing, try executing AV_READ_TIME() once within a region with the signal handler active, to allow gracefully informing the user about the issue. This matches the dav1d checkasm commit 95a192549a448b70d9542e840c4e34b60d09b093. Signed-off-by: Martin Storsjö <martin@martin.st>