sparc: implement all floating point operations in single, double and quad mode

[libfirm] / ir / be / ia32 / ia32_address_mode.c

diff --git a/ir/be/ia32/ia32_address_mode.c b/ir/be/ia32/ia32_address_mode.c
index b83d3d4..112baae 100644 (file)
--- a/ir/be/ia32/ia32_address_mode.c
+++ b/ir/be/ia32/ia32_address_mode.c
@@ -36,14 +36,14 @@
 #include "iredges_t.h"
 #include "irgwalk.h"
 
-#include "../benode_t.h"
+#include "../benode.h"
+#include "../belive.h"
 
 #define AGGRESSIVE_AM
 
 /* gas/ld don't support negative symconsts :-( */
 #undef SUPPORT_NEGATIVE_SYMCONSTS
 
-static be_lv_t  *lv;
 static bitset_t *non_address_mode_nodes;
 
 /**
@@ -87,6 +87,9 @@ static int do_is_immediate(const ir_node *node, int *symconsts, int negate)
                        return 0;
 
                return 1;
+       case iro_Unknown:
+               /* we can use '0' for Unknowns */
+               return 1;
        case iro_Add:
        case iro_Sub:
                /* Add's and Sub's are typically supported as long as both operands are
@@ -116,7 +119,8 @@ static int do_is_immediate(const ir_node *node, int *symconsts, int negate)
  * @return non-zero if the DAG represents an immediate, 0 else
  */
 #if 0
-static int is_immediate_simple(const ir_node *node) {
+static int is_immediate_simple(const ir_node *node)
+{
        int symconsts = 0;
        return do_is_immediate(node, &symconsts, 0);
 }
@@ -172,6 +176,8 @@ static void eat_immediate(ia32_address_t *addr, ir_node *node, int negate)
 #endif
                addr->symconst_sign = negate;
                break;
+       case iro_Unknown:
+               break;
        case iro_Add:
                assert(!ia32_is_non_address_mode_node(node));
                left  = get_Add_left(node);
@@ -300,7 +306,6 @@ static int eat_shl(ia32_address_t *addr, ir_node *node)
 /* Create an address mode for a given node. */
 void ia32_create_address_mode(ia32_address_t *addr, ir_node *node, ia32_create_am_flags_t flags)
 {
-       int      res = 0;
        ir_node *eat_imms;
 
        if (is_immediate(addr, node, 0)) {
@@ -328,7 +333,6 @@ void ia32_create_address_mode(ia32_address_t *addr, ir_node *node, ia32_create_a
                        eat_imms = ia32_skip_downconv(eat_imms);
                }
 
-               res  = 1;
                node = eat_imms;
 #ifndef AGGRESSIVE_AM
                if (get_irn_n_edges(node) > 1) {
@@ -428,9 +432,9 @@ int ia32_is_non_address_mode_node(ir_node const *node)
        return bitset_is_set(non_address_mode_nodes, get_irn_idx(node));
 }
 
-static int value_last_used_here(ir_node *here, ir_node *value)
+static int value_last_used_here(be_lv_t *lv, ir_node *here, ir_node *value)
 {
-       ir_node *block = get_nodes_block(here);
+       ir_node         *block = get_nodes_block(here);
        const ir_edge_t *edge;
 
        /* If the value is live end it is for sure it does not die here */
@@ -455,12 +459,13 @@ static int value_last_used_here(ir_node *here, ir_node *value)
  */
 static void mark_non_address_nodes(ir_node *node, void *env)
 {
-       int i, arity;
+       be_lv_t *lv = env;
+       int      arity;
+       int      i;
        ir_node *val;
        ir_node *left;
        ir_node *right;
        ir_mode *mode;
-       (void) env;
 
        mode = get_irn_mode(node);
        if (!mode_is_int(mode) && !mode_is_reference(mode) && mode != mode_b)
@@ -475,7 +480,7 @@ static void mark_non_address_nodes(ir_node *node, void *env)
        case iro_Store:
                /* Do not mark the pointer, because we want to turn it into AM. */
                val = get_Store_value(node);
-               bitset_set(non_address_mode_nodes, get_irn_idx(val));
+               ia32_mark_non_am(val);
                break;
 
        case iro_Shl:
@@ -497,15 +502,15 @@ static void mark_non_address_nodes(ir_node *node, void *env)
                 * an addition and has the same register pressure for the case that only
                 * one operand dies, but is faster (on Pentium 4).
                 * && instead of || only folds AM if both operands do not die here */
-               if (!value_last_used_here(node, left) ||
-                               !value_last_used_here(node, right)) {
+               if (!value_last_used_here(lv, node, left) ||
+                               !value_last_used_here(lv, node, right)) {
                        return;
                }
 
                /* At least one of left and right are not used by anyone else, so it is
                 * beneficial for the register pressure (if both are unused otherwise,
                 * else neutral) and ALU use to not fold AM. */
-               bitset_set(non_address_mode_nodes, get_irn_idx(node));
+               ia32_mark_non_am(node);
                break;
 
        default:
@@ -513,20 +518,19 @@ static void mark_non_address_nodes(ir_node *node, void *env)
 
                for (i = 0; i < arity; ++i) {
                        ir_node *in = get_irn_n(node, i);
-                       bitset_set(non_address_mode_nodes, get_irn_idx(in));
+                       ia32_mark_non_am(in);
                }
                break;
        }
 }
 
-void ia32_calculate_non_address_mode_nodes(be_irg_t *birg)
+void ia32_calculate_non_address_mode_nodes(ir_graph *irg)
 {
-       ir_graph *irg = be_get_birg_irg(birg);
+       be_lv_t  *lv  = be_assure_liveness(irg);
 
-       lv                     = be_assure_liveness(birg);
        non_address_mode_nodes = bitset_malloc(get_irg_last_idx(irg));
 
-       irg_walk_graph(irg, NULL, mark_non_address_nodes, NULL);
+       irg_walk_graph(irg, NULL, mark_non_address_nodes, lv);
 }
 
 void ia32_free_non_address_mode_nodes(void)