Improved CopyB lowering, made it part of target lowering.

[libfirm] / ir / be / sparc / bearch_sparc.c

diff --git a/ir/be/sparc/bearch_sparc.c b/ir/be/sparc/bearch_sparc.c
index 3a4a755..6feb3f7 100644 (file)
--- a/ir/be/sparc/bearch_sparc.c
+++ b/ir/be/sparc/bearch_sparc.c
@@ -39,6 +39,7 @@
 #include "irdump.h"
 #include "lowering.h"
 #include "lower_dw.h"
+#include "lower_builtins.h"
 #include "lower_calls.h"
 #include "lower_softfloat.h"
 
@@ -59,6 +60,7 @@
 #include "../begnuas.h"
 #include "../belistsched.h"
 #include "../beflags.h"
+#include "../beutil.h"
 
 #include "bearch_sparc_t.h"
 
@@ -353,6 +355,9 @@ static arch_env_t *sparc_init(FILE *outfile)
        *isa = sparc_isa_template;
        isa->constants = pmap_create();
 
+       be_gas_elf_type_char      = '#';
+       be_gas_object_file_format = OBJECT_FILE_FORMAT_ELF_SPARC;
+
        be_emit_init(outfile);
 
        sparc_register_init();
@@ -415,11 +420,14 @@ static void sparc_lower_for_target(void)
                sparc_create_set,
                0,
        };
+
        lower_calls_with_compounds(LF_RETURN_HIDDEN);
 
        if (sparc_isa_template.fpu_arch == SPARC_FPU_ARCH_SOFTFLOAT)
                lower_floating_point();
 
+       lower_builtins(0, NULL);
+
        sparc_lower_64bit();
 
        for (i = 0; i < n_irgs; ++i) {
@@ -427,6 +435,13 @@ static void sparc_lower_for_target(void)
                ir_lower_mode_b(irg, &lower_mode_b_config);
                lower_switch(irg, 4, 256, false);
        }
+
+       for (i = 0; i < n_irgs; ++i) {
+               ir_graph *irg = get_irp_irg(i);
+               /* Turn all small CopyBs into loads/stores and all bigger CopyBs into
+                * memcpy calls. */
+               lower_CopyB(irg, 31, 32, 4);
+       }
 }
 
 static int sparc_is_mux_allowed(ir_node *sel, ir_node *mux_false,
@@ -536,6 +551,48 @@ static const lc_opt_table_entry_t sparc_options[] = {
        LC_OPT_LAST
 };
 
+static ir_node *sparc_new_spill(ir_node *value, ir_node *after)
+{
+       ir_node  *block = get_block(after);
+       ir_graph *irg   = get_irn_irg(value);
+       ir_node  *frame = get_irg_frame(irg);
+       ir_node  *mem   = get_irg_no_mem(irg);
+       ir_mode  *mode  = get_irn_mode(value);
+       ir_node  *store;
+
+       if (mode_is_float(mode)) {
+               store = create_stf(NULL, block, value, frame, mem, mode, NULL, 0, true);
+       } else {
+               store = new_bd_sparc_St_imm(NULL, block, value, frame, mem, mode, NULL,
+                                           0, true);
+       }
+       sched_add_after(after, store);
+       return store;
+}
+
+static ir_node *sparc_new_reload(ir_node *value, ir_node *spill,
+                                 ir_node *before)
+{
+       ir_node  *block = get_block(before);
+       ir_graph *irg   = get_irn_irg(value);
+       ir_node  *frame = get_irg_frame(irg);
+       ir_mode  *mode  = get_irn_mode(value);
+       ir_node  *load;
+       ir_node  *res;
+
+       if (mode_is_float(mode)) {
+               load = create_ldf(NULL, block, frame, spill, mode, NULL, 0, true);
+       } else {
+               load = new_bd_sparc_Ld_imm(NULL, block, frame, spill, mode, NULL, 0,
+                                          true);
+       }
+       sched_add_before(before, load);
+       assert((long)pn_sparc_Ld_res == (long)pn_sparc_Ldf_res);
+       res = new_r_Proj(load, mode, pn_sparc_Ld_res);
+
+       return res;
+}
+
 const arch_isa_if_t sparc_isa_if = {
        sparc_init,
        sparc_lower_for_target,
@@ -558,6 +615,8 @@ const arch_isa_if_t sparc_isa_if = {
        sparc_finish,
        sparc_emit_routine,
        NULL, /* register_saved_by */
+       sparc_new_spill,
+       sparc_new_reload
 };
 
 BE_REGISTER_MODULE_CONSTRUCTOR(be_init_arch_sparc)