besched: Add and use sched_foreach_reverse_safe().

[libfirm] / ir / be / arm / bearch_arm.c

diff --git a/ir/be/arm/bearch_arm.c b/ir/be/arm/bearch_arm.c
index d30e030..65f9ebe 100644 (file)
--- a/ir/be/arm/bearch_arm.c
+++ b/ir/be/arm/bearch_arm.c
@@ -1,20 +1,6 @@
 /*
- * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
- *
  * This file is part of libFirm.
- *
- * This file may be distributed and/or modified under the terms of the
- * GNU General Public License version 2 as published by the Free Software
- * Foundation and appearing in the file LICENSE.GPL included in the
- * packaging of this file.
- *
- * Licensees holding valid libFirm Professional Edition licenses may use
- * this file in accordance with the libFirm Commercial License.
- * Agreement provided with the Software.
- *
- * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
- * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE.
+ * Copyright (C) 2012 University of Karlsruhe.
  */
 
 /**
@@ -114,7 +100,6 @@ static const arch_irn_ops_t arm_irn_ops = {
        arm_get_frame_entity,
        arm_set_stack_bias,
        arm_get_sp_bias,
-       NULL,    /* get_inverse             */
        NULL,    /* get_op_estimated_cost   */
        NULL,    /* possible_memory_operand */
        NULL,    /* perform_memory_operand  */
@@ -192,11 +177,8 @@ static void transform_Reload(ir_node *node)
        ir_node   *proj;
        ir_node   *load;
 
-       ir_node  *sched_point = sched_prev(node);
-
        load = new_bd_arm_Ldr(dbgi, block, ptr, mem, mode, entity, false, 0, true);
-       sched_add_after(sched_point, load);
-       sched_remove(node);
+       sched_replace(node, load);
 
        proj = new_rd_Proj(dbgi, load, mode, pn_arm_Ldr_res);
 
@@ -216,27 +198,20 @@ static void transform_Spill(ir_node *node)
        ir_node   *val    = get_irn_n(node, n_be_Spill_val);
        ir_mode   *mode   = get_irn_mode(val);
        ir_entity *entity = be_get_frame_entity(node);
-       ir_node   *sched_point;
        ir_node   *store;
 
-       sched_point = sched_prev(node);
        store = new_bd_arm_Str(dbgi, block, ptr, val, mem, mode, entity, false, 0,
                               true);
-
-       sched_remove(node);
-       sched_add_after(sched_point, store);
+       sched_replace(node, store);
 
        exchange(node, store);
 }
 
 static void arm_after_ra_walker(ir_node *block, void *data)
 {
-       ir_node *node, *prev;
        (void) data;
 
-       for (node = sched_last(block); !sched_is_begin(node); node = prev) {
-               prev = sched_prev(node);
-
+       sched_foreach_reverse_safe(block, node) {
                if (be_is_Reload(node)) {
                        transform_Reload(node);
                } else if (be_is_Spill(node)) {
@@ -408,7 +383,6 @@ static arm_isa_t arm_isa_template = {
                &arm_registers[REG_SP],  /* stack pointer */
                &arm_registers[REG_R11], /* base pointer */
                2,                       /* power of two stack alignment for calls, 2^2 == 4 */
-               NULL,                    /* main environment */
                7,                       /* spill costs */
                5,                       /* reload costs */
                true,                    /* we do have custom abi handling */
@@ -428,16 +402,13 @@ static void arm_finish(void)
        arm_free_opcodes();
 }
 
-static arch_env_t *arm_begin_codegeneration(const be_main_env_t *env)
+static arch_env_t *arm_begin_codegeneration(void)
 {
        arm_isa_t *isa = XMALLOC(arm_isa_t);
        *isa = arm_isa_template;
 
        be_gas_emit_types = false;
 
-       be_emit_init(env->file_handle);
-       be_gas_begin_compilation_unit(env);
-
        return &isa->base;
 }
 
@@ -446,11 +417,6 @@ static arch_env_t *arm_begin_codegeneration(const be_main_env_t *env)
  */
 static void arm_end_codegeneration(void *self)
 {
-       arm_isa_t *isa = (arm_isa_t*)self;
-
-       be_gas_end_compilation_unit(isa->base.main_env);
-
-       be_emit_exit();
        free(self);
 }