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authorKenneth Graunke <[email protected]>2015-02-25 16:08:14 -0800
committerKenneth Graunke <[email protected]>2015-02-27 11:36:24 -0800
commitea696be5ac097af621f10858d925a343a838be7a (patch)
tree5fe6df5a13c0a89529f8e5e09ba602ebf3dab9d4 /src/mapi/mapi_glapi.c
parent4ebacf8aa67b1bfba7820f25536be98c7452dcb1 (diff)
i965/fs: Patch the instruction generating discards; don't use CMP.Z.
CMP.Z doesn't work on Gen4-5 because the boolean isn't guaranteed to be 0 or 0xFFFFFFFF - only the low bit is defined. We can call emit_bool_to_cond_code to generate the condition in f0.0; the last instruction will generate the flag value. We can patch it to use f0.1, and negate the condition. Fixes discard tests on Gen4-5. Haswell shader-db stats: total instructions in shared programs: 5770279 -> 5769112 (-0.02%) instructions in affected programs: 64342 -> 63175 (-1.81%) helped: 1069 Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src/mapi/mapi_glapi.c')
0 files changed, 0 insertions, 0 deletions