{ "name" => "ecx", "type" => 1 },
{ "name" => "esi", "type" => 2 },
{ "name" => "edi", "type" => 2 },
+# { "name" => "r11", "type" => 1 },
+# { "name" => "r12", "type" => 1 },
+# { "name" => "r13", "type" => 1 },
+# { "name" => "r14", "type" => 1 },
+# { "name" => "r15", "type" => 1 },
+# { "name" => "r16", "type" => 1 },
+# { "name" => "r17", "type" => 1 },
+# { "name" => "r18", "type" => 1 },
+# { "name" => "r19", "type" => 1 },
+# { "name" => "r20", "type" => 1 },
+# { "name" => "r21", "type" => 1 },
+# { "name" => "r22", "type" => 1 },
+# { "name" => "r23", "type" => 1 },
+# { "name" => "r24", "type" => 1 },
+# { "name" => "r25", "type" => 1 },
+# { "name" => "r26", "type" => 1 },
+# { "name" => "r27", "type" => 1 },
+# { "name" => "r28", "type" => 1 },
+# { "name" => "r29", "type" => 1 },
+# { "name" => "r30", "type" => 1 },
+# { "name" => "r31", "type" => 1 },
+# { "name" => "r32", "type" => 1 },
{ "name" => "ebp", "type" => 2 },
{ "name" => "esp", "type" => 4 },
{ "name" => "gp_NOREG", "type" => 6 }, # we need a dummy register for NoReg nodes
"CMov" => {
"irn_flags" => "R",
- "comment" => "construct Mux: Mux(sel, a, b) == sel ? a : b",
+ "comment" => "construct Conditional Move: CMov(sel, a, b) == sel ? a : b",
"reg_req" => { "in" => [ "gp", "gp", "gp", "gp" ], "out" => [ "in_r4" ] }
},
+"Set" => {
+ "irn_flags" => "R",
+ "comment" => "construct Set: Set(sel) == sel ? 1 : 0",
+ "reg_req" => { "in" => [ "gp", "gp" ], "out" => [ "eax ebx ecx edx" ] },
+},
+
# not commutative operations
"Sub" => {
*
****************************************************************************************************/
+/**
+ * Returns 1 if irn is a Const representing 0, 0 otherwise
+ */
+static INLINE int is_ia32_Const_0(ir_node *irn) {
+ return is_ia32_Const(irn) ? classify_tarval(get_ia32_Immop_tarval(irn)) == TV_CLASSIFY_NULL : 0;
+}
+
+/**
+ * Returns 1 if irn is a Const representing 1, 0 otherwise
+ */
+static INLINE int is_ia32_Const_1(ir_node *irn) {
+ return is_ia32_Const(irn) ? classify_tarval(get_ia32_Immop_tarval(irn)) == TV_CLASSIFY_ONE : 0;
+}
+
/**
* Returns the Proj representing the UNKNOWN register for given mode.
*/
static ir_node *gen_Psi(ia32_transform_env_t *env) {
ir_node *node = env->irn;
ir_node *cmp_proj = get_Mux_sel(node);
- ir_node *cmp, *cmp_a, *cmp_b, *new_op;
+ ir_node *cmp, *cmp_a, *cmp_b, *new_op = NULL;
assert(get_irn_mode(cmp_proj) == mode_b && "Condition for Psi must have mode_b");
- cmp = get_Proj_pred(cmp_proj);
- cmp_a = get_Cmp_left(cmp);
- cmp_b = get_Cmp_right(cmp);
-
-
- new_op = new_rd_ia32_CMov(env->dbg, env->irg, env->block, \
- cmp_a, cmp_b, get_Psi_val(node, 0), get_Psi_default(node), env->mode);
+ if (mode_is_float(env->mode)) {
+ /* floating point psi */
- set_ia32_pncode(new_op, get_Proj_proj(cmp_proj));
+ if (USE_SSE2(env->cg)) {
+ /* unfortunately there is no conditional move for SSE */
+ }
+ else {
+ }
+ }
+ else {
+ ir_node *psi_true = get_Psi_val(node, 0);
+ ir_node *psi_default = get_Psi_default(node);
+
+ /* integer psi */
+ cmp = get_Proj_pred(cmp_proj);
+ cmp_a = get_Cmp_left(cmp);
+ cmp_b = get_Cmp_right(cmp);
+
+ if (is_ia32_Const_1(psi_true) && is_ia32_Const_0(psi_default)) {
+ /* first case for SETcc: default is 0, set to 1 iff condition is true */
+ new_op = new_rd_ia32_Set(env->dbg, env->irg, env->block, cmp_a, cmp_b, env->mode);
+ set_ia32_pncode(new_op, get_Proj_proj(cmp_proj));
+ }
+ else if (is_ia32_Const_0(psi_true) && is_ia32_Const_1(psi_default)) {
+ /* second case for SETcc: default is 1, set to 0 iff condition is true: */
+ /* we invert condition and set default to 0 */
+ new_op = new_rd_ia32_Set(env->dbg, env->irg, env->block, cmp_a, cmp_b, env->mode);
+ set_ia32_pncode(new_op, get_inversed_pnc(get_Proj_proj(cmp_proj)));
+ }
+ else {
+ /* otherwise: use CMOVcc */
+ new_op = new_rd_ia32_CMov(env->dbg, env->irg, env->block, cmp_a, cmp_b, psi_true, psi_default, env->mode);
+ set_ia32_pncode(new_op, get_Proj_proj(cmp_proj));
+ }
- SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+ SET_IA32_ORIG_NODE(new_op, ia32_get_old_node_name(env->cg, env->irn));
+ }
return new_op;
}