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i965: Drop VARYING_SLOT_FACE special case in barycentric setup. 

glsl_to_nir always produces a system value for gl_FrontFacing, rather
than an input.  So there should never be an input with this slot,
making this code dead.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
This commit is contained in:
Kenneth Graunke 2016-07-14 11:48:01 -07:00
parent ac1181ffbe
commit b94890c19f
1 changed files with 2 additions and 3 deletions
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5
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -6341,9 +6341,8 @@ brw_compute_barycentric_interp_modes(const struct brw_device_info *devinfo,
unsigned barycentric_interp_modes = 0;
nir_foreach_variable(var, &shader->inputs) {
/* Ignore WPOS and FACE, because they don't require interpolation. */
if (var->data.location == VARYING_SLOT_POS ||
var->data.location == VARYING_SLOT_FACE)
/* Ignore WPOS; it doesn't require interpolation. */
if (var->data.location == VARYING_SLOT_POS)
continue;
/* Flat inputs don't need barycentric modes. */