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intel/fs: Rework INTERPOLATE_AT_PER_SLOT_OFFSET

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This reworks INTERPOLATE_AT_PER_SLOT_OFFSET to work more like an ALU
operation and less like a send.  This is less code over-all and, as a
side-effect, it now properly handles execution groups and lowering so
SIMD32 support just falls out.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Francisco Jerez
2016-04-25 18:06:13 -07:00
committed by Jason Ekstrand
parent 74b477039d
commit 73d60455e9
3 changed files with 9 additions and 19 deletions
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8
src/intel/compiler/brw_fs_generator.cpp
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@@ -1579,16 +1579,18 @@ fs_generator::generate_pixel_interpolator_query(fs_inst *inst,
struct brw_reg msg_data,
unsigned msg_type)
{
assert(inst->size_written % REG_SIZE == 0);
const bool has_payload = inst->src[0].file != BAD_FILE;
assert(msg_data.type == BRW_REGISTER_TYPE_UD);
assert(inst->size_written % REG_SIZE == 0);
brw_pixel_interpolator_query(p,
retype(dst, BRW_REGISTER_TYPE_UW),
src,
/* If we don't have a payload, what we send doesn't matter */
has_payload ? src : brw_vec8_grf(0, 0),
inst->pi_noperspective,
msg_type,
msg_data,
inst->mlen,
has_payload ? 2 * inst->exec_size / 8 : 1,
inst->size_written / REG_SIZE);
}