nir: Rename convert_to_ssa lower_regs_to_ssa

This matches the naming of nir_lower_vars_to_ssa, the other to-SSA pass.

src/compiler/Makefile.sources

@@ -219,6 +219,7 @@ NIR_FILES = \
 	nir/nir_lower_io_types.c \
 	nir/nir_lower_passthrough_edgeflags.c \
 	nir/nir_lower_phis_to_scalar.c \
+	nir/nir_lower_regs_to_ssa.c \
 	nir/nir_lower_returns.c \
 	nir/nir_lower_samplers.c \
 	nir/nir_lower_system_values.c \
@@ -258,7 +259,6 @@ NIR_FILES = \
 	nir/nir_search_helpers.h \
 	nir/nir_split_var_copies.c \
 	nir/nir_sweep.c \
-	nir/nir_to_ssa.c \
 	nir/nir_to_lcssa.c \
 	nir/nir_validate.c \
 	nir/nir_vla.h \

src/compiler/nir/nir.h

@@ -2342,6 +2342,8 @@ nir_src *nir_get_io_vertex_index_src(nir_intrinsic_instr *instr);
 bool nir_is_per_vertex_io(nir_variable *var, gl_shader_stage stage);
 
 void nir_lower_io_types(nir_shader *shader);
+void nir_lower_regs_to_ssa_impl(nir_function_impl *impl);
+void nir_lower_regs_to_ssa(nir_shader *shader);
 void nir_lower_vars_to_ssa(nir_shader *shader);
 
 bool nir_remove_dead_variables(nir_shader *shader, nir_variable_mode modes);
@@ -2520,9 +2522,6 @@ void nir_loop_analyze_impl(nir_function_impl *impl,
 
 bool nir_ssa_defs_interfere(nir_ssa_def *a, nir_ssa_def *b);
 
-void nir_convert_to_ssa_impl(nir_function_impl *impl);
-void nir_convert_to_ssa(nir_shader *shader);
-
 bool nir_repair_ssa_impl(nir_function_impl *impl);
 bool nir_repair_ssa(nir_shader *shader);
 

src/compiler/nir/nir_lower_regs_to_ssa.c

@@ -511,7 +511,7 @@ destroy_rewrite_state(rewrite_state *state)
 }
 
 void
-nir_convert_to_ssa_impl(nir_function_impl *impl)
+nir_lower_regs_to_ssa_impl(nir_function_impl *impl)
 {
    nir_metadata_require(impl, nir_metadata_dominance);
 
@@ -531,10 +531,10 @@ nir_convert_to_ssa_impl(nir_function_impl *impl)
 }
 
 void
-nir_convert_to_ssa(nir_shader *shader)
+nir_lower_regs_to_ssa(nir_shader *shader)
 {
    nir_foreach_function(function, shader) {
       if (function->impl)
-         nir_convert_to_ssa_impl(function->impl);
+         nir_lower_regs_to_ssa_impl(function->impl);
    }
 }

src/compiler/nir/nir_opt_if.c

@@ -247,7 +247,7 @@ nir_opt_if(nir_shader *shader)
           * need to convert registers back into SSA defs and clean up SSA defs
           * that don't dominate their uses.
           */
-         nir_convert_to_ssa_impl(function->impl);
+         nir_lower_regs_to_ssa_impl(function->impl);
          progress = true;
       }
    }

src/compiler/nir/nir_opt_loop_unroll.c

@@ -556,7 +556,7 @@ nir_opt_loop_unroll_impl(nir_function_impl *impl,
    }
 
    if (progress)
-      nir_convert_to_ssa_impl(impl);
+      nir_lower_regs_to_ssa_impl(impl);
 
    return progress;
 }

src/compiler/nir/nir_opt_trivial_continues.c

@@ -128,7 +128,7 @@ nir_opt_trivial_continues(nir_shader *shader)
          nir_metadata_preserve(function->impl, nir_metadata_none);
 
          /* If that made progress, we're no longer really in SSA form. */
-         nir_convert_to_ssa_impl(function->impl);
+         nir_lower_regs_to_ssa_impl(function->impl);
          progress = true;
       }
    }

src/gallium/drivers/freedreno/ir3/ir3_nir.c

@@ -142,7 +142,7 @@ ir3_optimize_nir(struct ir3_shader *shader, nir_shader *s,
 	}
 
 	OPT_V(s, nir_opt_global_to_local);
-	OPT_V(s, nir_convert_to_ssa);
+	OPT_V(s, nir_lower_regs_to_ssa);
 
 	if (key) {
 		if (s->stage == MESA_SHADER_VERTEX) {

src/gallium/drivers/vc4/vc4_program.c

@@ -2409,7 +2409,7 @@ vc4_shader_state_create(struct pipe_context *pctx,
         }
 
         NIR_PASS_V(s, nir_opt_global_to_local);
-        NIR_PASS_V(s, nir_convert_to_ssa);
+        NIR_PASS_V(s, nir_lower_regs_to_ssa);
         NIR_PASS_V(s, nir_normalize_cubemap_coords);
 
         NIR_PASS_V(s, nir_lower_load_const_to_scalar);

src/mesa/drivers/dri/i965/brw_program.c

@@ -84,7 +84,7 @@ brw_create_nir(struct brw_context *brw,
                  nir_shader_get_entrypoint(nir), true, false);
    } else {
       nir = prog_to_nir(prog, options);
-      NIR_PASS_V(nir, nir_convert_to_ssa); /* turn registers into SSA */
+      NIR_PASS_V(nir, nir_lower_regs_to_ssa); /* turn registers into SSA */
    }
    nir_validate_shader(nir);