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nir: make lower_clamp_color pass work after lower i/o

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Kinda important to work with tgsi_to_nir, which generates nir which
already has i/o lowered.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark
2016-05-01 08:06:34 -04:00
parent 226bd92945
commit dcf8c4425a
1 changed files with 18 additions and 4 deletions
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22
src/compiler/nir/nir_lower_clamp_color_outputs.c
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@@ -62,14 +62,28 @@ is_color_output(lower_state *state, nir_variable *out)
static void static void
lower_intrinsic(lower_state *state, nir_intrinsic_instr *intr) lower_intrinsic(lower_state *state, nir_intrinsic_instr *intr)
{ {
nir_variable *out; nir_variable *out = NULL;
nir_builder *b = &state->b; nir_builder *b = &state->b;
nir_ssa_def *s; nir_ssa_def *s;
if (intr->intrinsic != nir_intrinsic_store_var) switch (intr->intrinsic) {
case nir_intrinsic_store_var:
out = intr->variables[0]->var;
break;
case nir_intrinsic_store_output:
/* already had i/o lowered.. lookup the matching output var: */
nir_foreach_variable(var, &state->shader->outputs) {
int drvloc = var->data.driver_location;
if (nir_intrinsic_base(intr) == drvloc) {
out = var;
break;
}
}
assert(out);
break;
default:
return; return;
}
out = intr->variables[0]->var;
if (out->data.mode != nir_var_shader_out) if (out->data.mode != nir_var_shader_out)
return; return;