replace unsupported builtins with library calls

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

diff --git a/ir/be/sparc/bearch_sparc.c b/ir/be/sparc/bearch_sparc.c
index 4a24243..5db48b6 100644 (file)
--- a/ir/be/sparc/bearch_sparc.c
+++ b/ir/be/sparc/bearch_sparc.c
@@ -39,7 +39,9 @@
 #include "irdump.h"
 #include "lowering.h"
 #include "lower_dw.h"
+#include "lower_builtins.h"
 #include "lower_calls.h"
+#include "lower_softfloat.h"
 
 #include "bitset.h"
 #include "debug.h"
@@ -58,6 +60,7 @@
 #include "../begnuas.h"
 #include "../belistsched.h"
 #include "../beflags.h"
+#include "../beutil.h"
 
 #include "bearch_sparc_t.h"
 
@@ -145,12 +148,12 @@ static void sparc_prepare_graph(ir_graph *irg)
 
 static bool sparc_modifies_flags(const ir_node *node)
 {
-       return arch_irn_get_flags(node) & sparc_arch_irn_flag_modifies_flags;
+       return arch_get_irn_flags(node) & sparc_arch_irn_flag_modifies_flags;
 }
 
 static bool sparc_modifies_fp_flags(const ir_node *node)
 {
-       return arch_irn_get_flags(node) & sparc_arch_irn_flag_modifies_fp_flags;
+       return arch_get_irn_flags(node) & sparc_arch_irn_flag_modifies_fp_flags;
 }
 
 static void sparc_before_ra(ir_graph *irg)
@@ -185,7 +188,8 @@ static sparc_isa_t sparc_isa_template = {
                5,                                  /* costs for a reload instruction */
                true,                               /* custom abi handling */
        },
-       NULL,     /* constants */
+       NULL,               /* constants */
+       SPARC_FPU_ARCH_FPU, /* FPU architecture */
 };
 
 /**
@@ -415,6 +419,11 @@ static void sparc_lower_for_target(void)
        };
        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) {
@@ -515,6 +524,64 @@ static int sparc_is_valid_clobber(const char *clobber)
        return 0;
 }
 
+/* fpu set architectures. */
+static const lc_opt_enum_int_items_t sparc_fpu_items[] = {
+       { "fpu",       SPARC_FPU_ARCH_FPU },
+       { "softfloat", SPARC_FPU_ARCH_SOFTFLOAT },
+       { NULL,        0 }
+};
+
+static lc_opt_enum_int_var_t arch_fpu_var = {
+       &sparc_isa_template.fpu_arch, sparc_fpu_items
+};
+
+static const lc_opt_table_entry_t sparc_options[] = {
+       LC_OPT_ENT_ENUM_INT("fpunit", "select the floating point unit", &arch_fpu_var),
+       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,
@@ -537,11 +604,18 @@ 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)
 void be_init_arch_sparc(void)
 {
+       lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
+       lc_opt_entry_t *sparc_grp = lc_opt_get_grp(be_grp, "sparc");
+
+       lc_opt_add_table(sparc_grp, sparc_options);
+
        be_register_isa_if("sparc", &sparc_isa_if);
        FIRM_DBG_REGISTER(dbg, "firm.be.sparc.cg");
        sparc_init_transform();