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-rw-r--r--src/mesa/drivers/dri/i965/brw_nir.c2
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4.h1
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_nir.cpp21
3 files changed, 20 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_nir.c b/src/mesa/drivers/dri/i965/brw_nir.c
index 8f3edc5cf01..f326b239d74 100644
--- a/src/mesa/drivers/dri/i965/brw_nir.c
+++ b/src/mesa/drivers/dri/i965/brw_nir.c
@@ -183,7 +183,7 @@ brw_create_nir(struct brw_context *brw,
nir_print_shader(nir, stderr);
}
- nir_convert_from_ssa(nir, is_scalar);
+ nir_convert_from_ssa(nir, true);
nir_validate_shader(nir);
if (!is_scalar) {
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index 01c6e8492c7..de74ec9bb68 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -423,6 +423,7 @@ public:
virtual void nir_emit_alu(nir_alu_instr *instr);
virtual void nir_emit_jump(nir_jump_instr *instr);
virtual void nir_emit_texture(nir_tex_instr *instr);
+ virtual void nir_emit_undef(nir_ssa_undef_instr *instr);
dst_reg get_nir_dest(nir_dest dest, enum brw_reg_type type);
dst_reg get_nir_dest(nir_dest dest, nir_alu_type type);
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
index 175d92b6b31..144f9e56eb7 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -367,6 +367,10 @@ vec4_visitor::nir_emit_instr(nir_instr *instr)
nir_emit_texture(nir_instr_as_tex(instr));
break;
+ case nir_instr_type_ssa_undef:
+ nir_emit_undef(nir_instr_as_ssa_undef(instr));
+ break;
+
default:
fprintf(stderr, "VS instruction not yet implemented by NIR->vec4\n");
break;
@@ -393,9 +397,14 @@ dst_reg_for_nir_reg(vec4_visitor *v, nir_register *nir_reg,
dst_reg
vec4_visitor::get_nir_dest(nir_dest dest)
{
- assert(!dest.is_ssa);
- return dst_reg_for_nir_reg(this, dest.reg.reg, dest.reg.base_offset,
- dest.reg.indirect);
+ if (dest.is_ssa) {
+ dst_reg dst = dst_reg(GRF, alloc.allocate(1));
+ nir_ssa_values[dest.ssa.index] = dst;
+ return dst;
+ } else {
+ return dst_reg_for_nir_reg(this, dest.reg.reg, dest.reg.base_offset,
+ dest.reg.indirect);
+ }
}
dst_reg
@@ -1529,4 +1538,10 @@ vec4_visitor::nir_emit_texture(nir_tex_instr *instr)
mcs, is_cube_array, sampler, sampler_reg);
}
+void
+vec4_visitor::nir_emit_undef(nir_ssa_undef_instr *instr)
+{
+ nir_ssa_values[instr->def.index] = dst_reg(GRF, alloc.allocate(1));
+}
+
}