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i965/fs: Set default access mode to Align1 for all instructions in the generator.

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Currently the generator code for most opcodes honours the default
access mode (which should typically be Align1 in the scalar back-end),
but generate_code() doesn't set it explicitly which means that the
access mode from a previous instruction could leak into the following
ones if you did something special and weren't careful enough to save
and restore the previous access mode.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Francisco Jerez 2016-05-18 18:41:28 -07:00
parent 3a541d0c0b
commit 117a9a0a64
1 changed files with 1 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_fs_generator.cpp
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@ -1697,6 +1697,7 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width)
}
dst = brw_reg_from_fs_reg(p, inst, &inst->dst, devinfo->gen);
brw_set_default_access_mode(p, BRW_ALIGN_1);
brw_set_default_predicate_control(p, inst->predicate);
brw_set_default_predicate_inverse(p, inst->predicate_inverse);
brw_set_default_flag_reg(p, 0, inst->flag_subreg);