KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

zink: remove unused code-path in lower_pos_write 

This code is never reached, because we don't call nir_lower_io before
lowering this. So let's get rid of it.
This commit is contained in:
Erik Faye-Lund 2019-12-19 14:41:09 +01:00
parent 87b3d8dce5
commit 5c2376af63
1 changed files with 8 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/gallium/drivers/zink/zink_compiler.c
View File

@ -123,23 +123,17 @@ lower_pos_write(nir_builder *b, struct nir_instr *instr)
return;
nir_intrinsic_instr *intr = nir_instr_as_intrinsic(instr);
struct nir_src *src;
if (intr->intrinsic == nir_intrinsic_store_output) {
if (nir_intrinsic_base(intr) != VARYING_SLOT_POS)
return;
src = &intr->src[0];
} else if (intr->intrinsic == nir_intrinsic_store_deref) {
nir_variable *var = nir_intrinsic_get_var(intr, 0);
if (var->data.mode != nir_var_shader_out ||
var->data.location != VARYING_SLOT_POS)
return;
src = &intr->src[1];
} else
if (intr->intrinsic != nir_intrinsic_store_deref)
return;
nir_variable *var = nir_intrinsic_get_var(intr, 0);
if (var->data.mode != nir_var_shader_out ||
var->data.location != VARYING_SLOT_POS)
return;
b->cursor = nir_before_instr(&intr->instr);
nir_ssa_def *pos = nir_ssa_for_src(b, *src, 4);
nir_ssa_def *pos = nir_ssa_for_src(b, intr->src[1], 4);
nir_ssa_def *def = nir_vec4(b,
nir_channel(b, pos, 0),
nir_channel(b, pos, 1),
@ -149,7 +143,7 @@ lower_pos_write(nir_builder *b, struct nir_instr *instr)
nir_channel(b, pos, 3)),
0.5),
nir_channel(b, pos, 3));
nir_instr_rewrite_src(&intr->instr, src, nir_src_for_ssa(def));
nir_instr_rewrite_src(&intr->instr, intr->src + 1, nir_src_for_ssa(def));
}
static void