https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229788
--- Comment #6 from Dimitry Andric <d...@freebsd.org> --- Created attachment 195456 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=195456&action=edit Avoid undefined behavior in cuTreeFix8Pack As noted in the upstream x265 bug report, it turns out cuTreeFix8Pack() has undefined behavior when it attempts to fit negative double values into uint16_t. There needs to be an intermediate cast to int16_t to avoid this, and I verified that the input values are never outside the range [INT16_MIN..INT16_MAX]. In addition I added a part to the port Makefile which sets the port LLD_UNSAFE on i386. (I have had this patch in my tree for a while, might as well get it applied now...) Note that independently of this patch, or adding -mno-avx, for me TestBench still crashes with a segfault at the end, but that is apparently unrelated to this particular bug: Using random seed 5B58D03E 8bit Testing primitives: SSE2 Testing primitives: SSE3 Testing primitives: SSSE3 Testing primitives: SSE4 Testing primitives: AVX Testing primitives: AVX2 Testing primitives: BMI2 Testing primitives: ARMv6 Testing primitives: NEON Testing primitives: FastNeonMRC Test performance improvement with full optimizations == pixel primitives == satd[ 4x4] 3.65x 147.78 538.83 avg_pp[ 4x4] 1.25x 244.77 305.50 [... much more of these stats ... ] pelFilterLumaStrong_Vertical 1.49x 723.31 1075.46 *** Signal 11 Stop. make: stopped in /share/dim/ports/multimedia/x265 -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
