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| author | James Almer <jamrial@gmail.com> | 2016-07-09 16:00:06 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2016-07-09 17:39:31 -0300 |
| commit | 4774eb8128ea61a8b2f60e3d5950f48ebf6b8c55 (patch) | |
| tree | 9a40f38c3db8a0860664ba4da44961b3369052b6 | |
| parent | 96f5019bde0f6719133a36433fec465b8538df25 (diff) | |
| download | ffmpeg-4774eb8128ea61a8b2f60e3d5950f48ebf6b8c55.tar.gz | |
Revert "configure: Enable GCC vectorization on ≥4.9 on x86"
This reverts commit cb8646af24bd8e9627cc5e1c62b049a00fe0b07b.
This change has brough more issues than benefits, between compilation
time failures depending on flags used and code miscompilation causing
runtime crashes.
See the "[PATCH 2/2] configure: Enable GCC vectorization on ≥4.9"
thread in the ffmpeg-devel mailing list for the relevant discussion.
(cherry picked from commit fd6dbc53855fbfc9a782095d0ffe11dd3a98905f)
| -rwxr-xr-x | configure | 6 |
1 files changed, 1 insertions, 5 deletions
@@ -5923,11 +5923,7 @@ elif enabled ccc; then add_cflags -msg_disable nonstandcast add_cflags -msg_disable unsupieee elif enabled gcc; then - case $gcc_basever in - 4.9*) enabled x86 || check_optflags -fno-tree-vectorize ;; - 4.*) check_optflags -fno-tree-vectorize ;; - *) enabled x86 || check_optflags -fno-tree-vectorize ;; - esac + check_optflags -fno-tree-vectorize check_cflags -Werror=format-security check_cflags -Werror=implicit-function-declaration check_cflags -Werror=missing-prototypes |