It was my understanding that the writemask works in SIMD4x2 mode for texturing instructions and doesn't require a message header. Some bit of this logic must be wrong, so disable it until it's understood.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76617 --- v2: Base on master, rather than breaking commit. src/mesa/drivers/dri/i965/brw_vec4.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp index 4ae6020..32a3892 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp @@ -351,8 +351,10 @@ try_eliminate_instruction(vec4_instruction *inst, int new_writemask) case VS_OPCODE_PULL_CONSTANT_LOAD_GEN7: break; default: - inst->dst.writemask = new_writemask; - return true; + if (!inst->is_tex()) { + inst->dst.writemask = new_writemask; + return true; + } } } -- 1.8.3.2 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
