#include <string.h>
#include <stdio.h>
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/mempool.h>
#include <mono/metadata/opcodes.h>
#include "mini.h"
+#include "ir-emit.h"
+#ifndef MONO_ARCH_IS_OP_MEMBASE
+#define MONO_ARCH_IS_OP_MEMBASE(opcode) FALSE
+#endif
-#define MONO_DEBUG_LOCAL_PROP 0
-#define MONO_DEBUG_TREE_MOVER 0
-#define MONO_DUMP_TREE_MOVER 0
-#define MONO_APPLY_TREE_MOVER_TO_SINGLE_METHOD 0
-#define MONO_APPLY_TREE_MOVER_TO_COUNTED_METHODS 0
-
-struct TreeMoverActSlot;
-/*
- * A node describing one dependency between a tree and a local
- */
-typedef struct TreeMoverDependencyNode {
- /* The local used in the tree */
- struct TreeMoverActSlot *used_slot;
- /* The local defined by the tree */
- struct TreeMoverActSlot *affected_slot;
- /* Next in the list of used locals */
- struct TreeMoverDependencyNode *next_used_local;
- /* Next in the list of affected locals */
- struct TreeMoverDependencyNode *next_affected_local;
- /* Previous in the list of affected locals */
- struct TreeMoverDependencyNode *previous_affected_local;
- /* False if the local is used in a tree that defines a used local */
- guchar use_is_direct;
-} TreeMoverDependencyNode;
-
-struct TreeMoverTreeMove;
-/*
- * A node in a list of affected TreeMoverTreeMove
- */
-typedef struct TreeMoverAffectedMove {
- struct TreeMoverTreeMove *affected_move;
- struct TreeMoverAffectedMove *next_affected_move;
-} TreeMoverAffectedMove;
-
-/*
- * A node in a list of TreeMoverDependencyFromDeadDefinition
- */
-typedef struct TreeMoverDependencyFromDeadDefinition {
- /* The ACT slot of the defined local */
- struct TreeMoverActSlot *defined_slot;
- /* The definition that will hopefully be dead */
- MonoInst *dead_definition;
- /* Next in the list */
- struct TreeMoverDependencyFromDeadDefinition *next;
-} TreeMoverDependencyFromDeadDefinition;
-
-/*
- * A "tree move"
- */
-typedef struct TreeMoverTreeMove {
- /* ACT slot of the defined local */
- struct TreeMoverActSlot *defined_slot;
- /* Code location of the definition */
- MonoInst *definition;
- /* Code location where the tree must be replaced with the local */
- MonoInst **use;
- /* Moves that must not be performed of we perform this one */
- TreeMoverAffectedMove *affected_moves;
- /* Definitions that must be dead to be allowed to perform this move */
- struct TreeMoverDependencyFromDeadDefinition *slots_that_must_be_safe;
- /* Next in the list of scheduled moves */
- struct TreeMoverTreeMove *next;
- /* The used tree accesses heap memory */
- guchar tree_reads_memory;
- /* A subsequent definitions makes this move globally safe */
- guchar move_is_safe;
- /* This move has been affected by something, ignore it */
- guchar skip_this_move;
- /* "tree forwarding" cannot continue for this definition */
- guchar prevent_forwarding;
-} TreeMoverTreeMove;
+static inline MonoBitSet*
+mono_bitset_mp_new_noinit (MonoMemPool *mp, guint32 max_size)
+{
+ int size = mono_bitset_alloc_size (max_size, 0);
+ gpointer mem;
-/*
- * An ACT slot (there is one for each local in the ACT array)
- */
-typedef struct TreeMoverActSlot {
- /* List of used locals (directly and indirectly) */
- TreeMoverDependencyNode *used_locals;
- /* Last element (so that we can move all the nodes quickly) */
- TreeMoverDependencyNode *last_used_local;
- /* List of affected locals (definitions that use this local) */
- TreeMoverDependencyNode *affected_locals;
- /* The current pending move */
- TreeMoverTreeMove *pending_move;
- /* True if the move has already met its use use */
- guchar pending_move_is_ready;
- /* See [W] flag */
- guchar waiting_flag;
- /* See [X] flag */
- guchar unsafe_flag;
- /* A "tree forwarding" is in progress */
- guchar pending_move_is_forwarded;
-} TreeMoverActSlot;
+ mem = mono_mempool_alloc (mp, size);
+ return mono_bitset_mem_new (mem, max_size, MONO_BITSET_DONT_FREE);
+}
/*
- * Main tree mover work area
+ * mono_local_cprop:
+ *
+ * A combined local copy and constant propagation pass.
*/
-typedef struct TreeMover {
- /* Pool used for allocating everything */
- MonoMemPool *pool;
- /* Current method */
- MonoCompile *cfg;
-
- /* Free (recycled) TreeMoverDependencyNode structs */
- TreeMoverDependencyNode *free_nodes;
- /* Free (recycled) TreeMoverTreeMove structs */
- TreeMoverTreeMove *free_moves;
-
- /* ACT array */
- TreeMoverActSlot *ACT;
- /* List of tree moves that could be performed */
- TreeMoverTreeMove *scheduled_moves;
-
- /* The following fields are reset at each tree traversal */
- /* List of used locals */
- TreeMoverDependencyNode *used_nodes;
- /* Last node in the list (to free it in one block) */
- TreeMoverDependencyNode *last_used_node;
- /* The current tree cannot be moved (it can still receive moves!) */
- guchar tree_has_side_effects;
- /* The current tree reads heap locations */
- guchar tree_reads_memory;
-} TreeMover;
-
-inline static TreeMoverDependencyNode*
-tree_mover_new_node (TreeMover *tree_mover) {
- TreeMoverDependencyNode *node;
-
- if (tree_mover->free_nodes != NULL) {
- node = tree_mover->free_nodes;
- tree_mover->free_nodes = tree_mover->free_nodes->next_used_local;
- node->next_used_local = NULL;
- node->next_affected_local = NULL;
- node->previous_affected_local = NULL;
- } else {
- node = (TreeMoverDependencyNode*) mono_mempool_alloc0 (tree_mover->pool, sizeof (TreeMoverDependencyNode));
- }
-
- return node;
-}
-
-inline static void
-tree_mover_new_slot_move (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- TreeMoverTreeMove *move;
-
- if (tree_mover->free_moves != NULL) {
- move = tree_mover->free_moves;
- tree_mover->free_moves = tree_mover->free_moves->next;
- memset (move, 0, sizeof (TreeMoverTreeMove));
- } else {
- move = (TreeMoverTreeMove*) mono_mempool_alloc0 (tree_mover->pool, sizeof (TreeMoverTreeMove));
- }
-
- slot->pending_move = move;
-}
-
-inline static void
-tree_mover_dispose_used_nodes (TreeMover *tree_mover) {
- tree_mover->last_used_node->next_used_local = tree_mover->free_nodes;
- tree_mover->free_nodes = tree_mover->used_nodes;
- tree_mover->used_nodes = NULL;
- tree_mover->last_used_node = NULL;
-}
-
-inline static void
-tree_mover_dispose_slot_nodes (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- slot->last_used_local->next_used_local = tree_mover->free_nodes;
- tree_mover->free_nodes = slot->used_locals;
- slot->used_locals = NULL;
- slot->last_used_local = NULL;
-}
-
-inline static void
-tree_mover_dispose_slot_move (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- slot->pending_move->next = tree_mover->free_moves;
- tree_mover->free_moves = slot->pending_move;
- slot->pending_move = NULL;
-}
-
-inline static TreeMoverActSlot*
-tree_mover_slot_from_index (TreeMover *tree_mover, int index) {
- return & (tree_mover->ACT [index]);
-}
-
-inline static int
-tree_mover_slot_to_index (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- return slot - tree_mover->ACT;
-}
-
-inline static void
-tree_mover_add_used_node (TreeMover *tree_mover, TreeMoverActSlot *slot, gboolean use_is_direct) {
- TreeMoverDependencyNode *node;
-
- node = tree_mover_new_node (tree_mover);
- node->used_slot = slot;
- node->affected_slot = NULL;
- node->use_is_direct = use_is_direct;
- if (tree_mover->last_used_node != NULL) {
- tree_mover->last_used_node->next_used_local = node;
- } else {\
- tree_mover->used_nodes = node;
- }\
- tree_mover->last_used_node = node;
-}
-
-inline static void
-tree_mover_link_affecting_node (TreeMoverDependencyNode *node, TreeMoverActSlot *affected_slot) {
- TreeMoverActSlot *affecting_slot = node->used_slot;
- node->affected_slot = affected_slot;
- node->next_affected_local = affecting_slot->affected_locals;
- affecting_slot->affected_locals = node;
- if (node->next_affected_local != NULL) {
- node->next_affected_local->previous_affected_local = node;
- }
- node->previous_affected_local = NULL;
-}
-
-inline static void
-tree_mover_unlink_affecting_node (TreeMoverDependencyNode *node) {
- if (node->next_affected_local != NULL) {
- node->next_affected_local->previous_affected_local = node->previous_affected_local;
- }
- if (node->previous_affected_local != NULL) {
- node->previous_affected_local->next_affected_local = node->next_affected_local;
- } else {
- TreeMoverActSlot *slot = node->used_slot;
- slot->affected_locals = node->next_affected_local;
- }
- node->next_affected_local = NULL;
- node->previous_affected_local = NULL;
- node->affected_slot = NULL;
-}
-
-inline static void
-tree_mover_link_affected_moves (TreeMover *tree_mover, TreeMoverActSlot *source_slot, TreeMoverActSlot *destination_slot) {
- TreeMoverAffectedMove *node = (TreeMoverAffectedMove*) mono_mempool_alloc0 (tree_mover->pool, sizeof (TreeMoverAffectedMove));
- node->affected_move = destination_slot->pending_move;
- node->next_affected_move = source_slot->pending_move->affected_moves;
- source_slot->pending_move->affected_moves = node;
-}
+void
+mono_local_cprop (MonoCompile *cfg)
+{
+ MonoBasicBlock *bb;
+ MonoInst **defs;
+ gint32 *def_index;
+ int max;
+restart:
-inline static void
-tree_mover_record_pending_move (TreeMover *tree_mover, TreeMoverActSlot *slot, gboolean move_is_safe) {
- if (slot->pending_move_is_ready) {
- slot->pending_move->move_is_safe = move_is_safe;
- slot->pending_move->next = tree_mover->scheduled_moves;
- tree_mover->scheduled_moves = slot->pending_move;
- slot->pending_move = NULL;
- slot->pending_move_is_ready = FALSE;
- }
-}
+ max = cfg->next_vreg;
+ defs = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * (cfg->next_vreg + 1));
+ def_index = mono_mempool_alloc (cfg->mempool, sizeof (guint32) * (cfg->next_vreg + 1));
-inline static void
-tree_mover_clear_forwarding_dependency (TreeMoverActSlot *slot) {
- if (slot->pending_move_is_forwarded) {
- TreeMoverDependencyFromDeadDefinition *dependency = slot->pending_move->slots_that_must_be_safe;
- while (dependency != NULL) {
- if (dependency->defined_slot == slot) {
- dependency->defined_slot = NULL;
+ for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
+ MonoInst *ins;
+ int ins_index;
+ int last_call_index;
+
+ /* Manually init the defs entries used by the bblock */
+ MONO_BB_FOR_EACH_INS (bb, ins) {
+ int sregs [MONO_MAX_SRC_REGS];
+ int num_sregs, i;
+
+ if ((ins->dreg != -1) && (ins->dreg < max)) {
+ defs [ins->dreg] = NULL;
+#if SIZEOF_REGISTER == 4
+ defs [ins->dreg + 1] = NULL;
+#endif
}
- dependency = dependency->next;
- }
- slot->pending_move = NULL;
- }
-}
-
-inline static void
-tree_mover_enforce_forwarding_dependency (TreeMoverActSlot *slot) {
- if (slot->pending_move_is_forwarded) {
- slot->pending_move->skip_this_move = TRUE;
- slot->pending_move_is_forwarded = FALSE;
- slot->pending_move = NULL;
- }
-}
-
-inline static void
-tree_mover_clean_act_slot_dependency_nodes (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- TreeMoverDependencyNode *current_node = slot->used_locals;
- while (current_node != NULL) {
- tree_mover_unlink_affecting_node (current_node);
- current_node = current_node->next_used_local;
- }
- if (slot->used_locals != NULL) {
- tree_mover_dispose_slot_nodes (tree_mover, slot);
- }
-}
-inline static void
-tree_mover_clean_act_slot_pending_move (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- if (slot->pending_move != NULL) {
- if (! slot->pending_move_is_forwarded) {
- tree_mover_dispose_slot_move (tree_mover, slot);
- } else {\
- slot->pending_move = NULL;
+ num_sregs = mono_inst_get_src_registers (ins, sregs);
+ for (i = 0; i < num_sregs; ++i) {
+ int sreg = sregs [i];
+ if (sreg < max) {
+ defs [sreg] = NULL;
+#if SIZEOF_REGISTER == 4
+ defs [sreg + 1] = NULL;
+#endif
+ }
+ }
}
- }
- slot->pending_move_is_ready = FALSE;
- slot->pending_move_is_forwarded = FALSE;
-}
-inline static void
-tree_mover_clean_act_slot (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- tree_mover_clean_act_slot_dependency_nodes (tree_mover, slot);
- tree_mover_clean_act_slot_pending_move (tree_mover, slot);
-}
+ ins_index = 0;
+ last_call_index = -1;
+ MONO_BB_FOR_EACH_INS (bb, ins) {
+ const char *spec = INS_INFO (ins->opcode);
+ int regtype, srcindex, sreg;
+ int num_sregs;
+ int sregs [MONO_MAX_SRC_REGS];
-inline static void
-tree_mover_kill_act_slot_for_definition (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- tree_mover_record_pending_move (tree_mover, slot, TRUE);
- tree_mover_clear_forwarding_dependency (slot);
- tree_mover_clean_act_slot (tree_mover, slot);
-}
+ if (ins->opcode == OP_NOP) {
+ MONO_DELETE_INS (bb, ins);
+ continue;
+ }
-inline static void
-tree_mover_kill_act_slot_because_it_is_affected (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- if ((! slot->pending_move_is_ready) && (! slot->pending_move_is_forwarded)) {
- tree_mover_clean_act_slot (tree_mover, slot);
- }
-}
+ g_assert (ins->opcode > MONO_CEE_LAST);
-inline static void
-tree_mover_kill_act_slot_for_use (TreeMover *tree_mover, TreeMoverActSlot *slot) {
- tree_mover_enforce_forwarding_dependency (slot);
- tree_mover_clean_act_slot (tree_mover, slot);
-}
+ /* FIXME: Optimize this */
+ if (ins->opcode == OP_LDADDR) {
+ MonoInst *var = ins->inst_p0;
-inline static void
-tree_mover_kill_act_for_indirect_local_definition (TreeMover *tree_mover, int size) {
- int i;
- for (i = 0; i < size; i++) {
- TreeMoverActSlot *slot = &(tree_mover->ACT [i]);
- if (slot->pending_move != NULL) {
- slot->pending_move->prevent_forwarding = TRUE;
- }
- tree_mover_kill_act_slot_because_it_is_affected (tree_mover, slot);
- }
-}
+ defs [var->dreg] = NULL;
+ /*
+ if (!MONO_TYPE_ISSTRUCT (var->inst_vtype))
+ break;
+ */
+ }
-inline static void
-tree_mover_kill_act_for_indirect_global_definition (TreeMover *tree_mover, int size) {
- int i;
- for (i = 0; i < size; i++) {
- TreeMoverActSlot *slot = &(tree_mover->ACT [i]);
- if ((slot->pending_move != NULL) && slot->pending_move->tree_reads_memory) {
- tree_mover_kill_act_slot_because_it_is_affected (tree_mover, slot);
- }
- }
-}
+ if (MONO_IS_STORE_MEMBASE (ins)) {
+ sreg = ins->dreg;
+ regtype = 'i';
-inline static void
-tree_mover_kill_act_for_indirect_use (TreeMover *tree_mover, int size) {
- int i;
- for (i = 0; i < size; i++) {
- TreeMoverActSlot *slot = &(tree_mover->ACT [i]);
- tree_mover_kill_act_slot_for_use (tree_mover, slot);
- }
-}
+ if ((regtype == 'i') && (sreg != -1) && defs [sreg]) {
+ MonoInst *def = defs [sreg];
-inline static void
-tree_mover_clear_act_recording_moves (TreeMover *tree_mover, int size) {
- int i;
- for (i = 0; i < size; i++) {
- TreeMoverActSlot *slot = &(tree_mover->ACT [i]);
- tree_mover_record_pending_move (tree_mover, slot, FALSE);
- tree_mover_clean_act_slot (tree_mover, slot);
- }
-}
+ if ((def->opcode == OP_MOVE) && (!defs [def->sreg1] || (def_index [def->sreg1] < def_index [sreg])) && !vreg_is_volatile (cfg, def->sreg1)) {
+ int vreg = def->sreg1;
+ if (cfg->verbose_level > 2) printf ("CCOPY: R%d -> R%d\n", sreg, vreg);
+ ins->dreg = vreg;
+ }
+ }
+ }
-inline static void
-tree_mover_set_waiting_flags (TreeMover *tree_mover, int size) {
- int i;
- for (i = 0; i < size; i++) {
- TreeMoverActSlot *slot = &(tree_mover->ACT [i]);
- slot->waiting_flag = TRUE;
- }
-}
+ num_sregs = mono_inst_get_src_registers (ins, sregs);
+ for (srcindex = 0; srcindex < num_sregs; ++srcindex) {
+ MonoInst *def;
+ int nsregs;
+
+ nsregs = mono_inst_get_src_registers (ins, sregs);
+
+ regtype = spec [MONO_INST_SRC1 + srcindex];
+ sreg = sregs [srcindex];
+
+ if ((regtype == ' ') || (sreg == -1) || (!defs [sreg]))
+ continue;
+
+ def = defs [sreg];
+
+ /* Copy propagation */
+ /*
+ * The first check makes sure the source of the copy did not change since
+ * the copy was made.
+ * The second check avoids volatile variables.
+ * The third check avoids copy propagating local vregs through a call,
+ * since the lvreg will be spilled
+ * The fourth check avoids copy propagating a vreg in cases where
+ * it would be eliminated anyway by reverse copy propagation later,
+ * because propagating it would create another use for it, thus making
+ * it impossible to use reverse copy propagation.
+ */
+ /* Enabling this for floats trips up the fp stack */
+ /*
+ * Enabling this for floats on amd64 seems to cause a failure in
+ * basic-math.cs, most likely because it gets rid of some r8->r4
+ * conversions.
+ */
+ if (MONO_IS_MOVE (def) &&
+ (!defs [def->sreg1] || (def_index [def->sreg1] < def_index [sreg])) &&
+ !vreg_is_volatile (cfg, def->sreg1) &&
+ /* This avoids propagating local vregs across calls */
+ ((get_vreg_to_inst (cfg, def->sreg1) || !defs [def->sreg1] || (def_index [def->sreg1] >= last_call_index) || (def->opcode == OP_VMOVE))) &&
+ !(defs [def->sreg1] && defs [def->sreg1]->next == def) &&
+ (!MONO_ARCH_USE_FPSTACK || (def->opcode != OP_FMOVE)) &&
+ (def->opcode != OP_FMOVE)) {
+ int vreg = def->sreg1;
+
+ if (cfg->verbose_level > 2) printf ("CCOPY/2: R%d -> R%d\n", sreg, vreg);
+ sregs [srcindex] = vreg;
+ mono_inst_set_src_registers (ins, sregs);
+
+ /* Allow further iterations */
+ srcindex = -1;
+ continue;
+ }
-inline static void
-tree_mover_verify_dependency_nodes_are_clear (TreeMover *tree_mover, int size) {
- int i;
- for (i = 0; i < size; i++) {
- TreeMoverActSlot *slot = &(tree_mover->ACT [i]);
- if (slot->affected_locals != NULL) {
- printf ("Slot %d has still affected variables\n", i);
- g_assert_not_reached ();
- }
- if (slot->used_locals != NULL) {
- printf ("Slot %d has still used variables\n", i);
- g_assert_not_reached ();
- }
- if (slot->last_used_local != NULL) {
- printf ("Slot %d has still a last used variable\n", i);
- g_assert_not_reached ();
- }
- }
-}
+ /* Constant propagation */
+ /* FIXME: Make is_inst_imm a macro */
+ /* FIXME: Make is_inst_imm take an opcode argument */
+ /* is_inst_imm is only needed for binops */
+ if ((((def->opcode == OP_ICONST) || ((sizeof (gpointer) == 8) && (def->opcode == OP_I8CONST))) &&
+ (((srcindex == 0) && (ins->sreg2 == -1)) || mono_arch_is_inst_imm (def->inst_c0))) ||
+ (!MONO_ARCH_USE_FPSTACK && (def->opcode == OP_R8CONST))) {
+ guint32 opcode2;
+
+ /* srcindex == 1 -> binop, ins->sreg2 == -1 -> unop */
+ if ((srcindex == 1) && (ins->sreg1 != -1) && defs [ins->sreg1] && (defs [ins->sreg1]->opcode == OP_ICONST) && defs [ins->sreg2]) {
+ /* Both arguments are constants, perform cfold */
+ mono_constant_fold_ins (cfg, ins, defs [ins->sreg1], defs [ins->sreg2], TRUE);
+ } else if ((srcindex == 0) && (ins->sreg2 != -1) && defs [ins->sreg2]) {
+ /* Arg 1 is constant, swap arguments if possible */
+ int opcode = ins->opcode;
+ mono_constant_fold_ins (cfg, ins, defs [ins->sreg1], defs [ins->sreg2], TRUE);
+ if (ins->opcode != opcode) {
+ /* Allow further iterations */
+ srcindex = -1;
+ continue;
+ }
+ } else if ((srcindex == 0) && (ins->sreg2 == -1)) {
+ /* Constant unop, perform cfold */
+ mono_constant_fold_ins (cfg, ins, defs [ins->sreg1], NULL, TRUE);
+ }
+ opcode2 = mono_op_to_op_imm (ins->opcode);
+ if ((opcode2 != -1) && mono_arch_is_inst_imm (def->inst_c0) && ((srcindex == 1) || (ins->sreg2 == -1))) {
+ ins->opcode = opcode2;
+ if ((def->opcode == OP_I8CONST) && (sizeof (gpointer) == 4)) {
+ ins->inst_ls_word = def->inst_ls_word;
+ ins->inst_ms_word = def->inst_ms_word;
+ } else {
+ ins->inst_imm = def->inst_c0;
+ }
+ sregs [srcindex] = -1;
+ mono_inst_set_src_registers (ins, sregs);
-static const guchar stind_needs_conversion[(CEE_STIND_R8-CEE_STIND_REF)+1][STACK_MAX] = {
- /* INV I4 I8 PTR R8 MP OBJ VTYPE */
- {TRUE ,TRUE, TRUE, FALSE,TRUE, FALSE,FALSE,TRUE}, /* CEE_STIND_REF */
- {TRUE ,TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_STIND_I1 */
- {TRUE ,TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_STIND_I2 */
- {TRUE ,FALSE,TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_STIND_I4 */
- {TRUE ,TRUE, FALSE,TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_STIND_I8 */
- {TRUE ,TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_STIND_R4 */
- {TRUE ,TRUE, TRUE, TRUE, FALSE,TRUE, TRUE, TRUE} /* CEE_STIND_R8 */
-};
-static const guchar stind_i_needs_conversion[STACK_MAX] = {TRUE ,TRUE, TRUE, FALSE, TRUE, FALSE, FALSE, TRUE};
-static const guchar ldind_needs_conversion[(CEE_LDIND_REF-CEE_LDIND_I1)+1][STACK_MAX] = {
- /* INV I4 I8 PTR R8 MP OBJ VTYPE */
- {TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_I1 */
- {TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_U1 */
- {TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_I2 */
- {TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_U2 */
- {TRUE, FALSE,TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_I4 */
- {TRUE, FALSE,TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_U4 */
- {TRUE, TRUE, FALSE,TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_I8 */
- {TRUE, TRUE, TRUE, FALSE,TRUE, FALSE,FALSE,TRUE}, /* CEE_LDIND_I */
- {TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE}, /* CEE_LDIND_R4 */
- {TRUE, TRUE, TRUE, TRUE, FALSE,TRUE, TRUE, TRUE}, /* CEE_LDIND_R8 */
- {TRUE, TRUE, TRUE, FALSE,TRUE, FALSE,FALSE,TRUE} /* CEE_LDIND_REF */
-};
-
-#define TREE_MOVER_LDIND_TO_CONV(__opcode) (ldind_to_conv [(__opcode) - CEE_LDIND_I1])
-#define TREE_MOVER_STIND_NEEDS_CONVERSION(__opcode,__type) (((__opcode) != CEE_STIND_I) ? (stind_needs_conversion [(__opcode) - CEE_STIND_REF][(__type)]) : (stind_i_needs_conversion [(__type)]))
-#define TREE_MOVER_LDIND_NEEDS_CONVERSION(__opcode,__type) (ldind_needs_conversion [(__opcode) - CEE_LDIND_I1][(__type)])
-
-static void
-tree_mover_print_act_slot (const char* message, TreeMover *tree_mover, TreeMoverActSlot *slot) {
- TreeMoverDependencyNode *node;
- printf (" [%s] Slot %d uses {", message, tree_mover_slot_to_index (tree_mover, slot));
- for (node = slot->used_locals; node != NULL; node = node->next_used_local) {
- printf (" %d", tree_mover_slot_to_index (tree_mover, node->used_slot));
- }
- printf (" } affects {");
- for (node = slot->affected_locals; node != NULL; node = node->next_affected_local) {
- printf (" %d", tree_mover_slot_to_index (tree_mover, node->affected_slot));
- }
- printf (" } R%d F%d W%d U%d", slot->pending_move_is_ready, slot->pending_move_is_forwarded, slot->waiting_flag, slot->unsafe_flag);
- if (slot->pending_move != NULL) {
- printf (" DEFINITION:");
- //printf (" DEFINITION[%p]:", slot->pending_move->definition);
- mono_print_tree (slot->pending_move->definition);
- }
- printf ("\n");
-}
+ if ((opcode2 == OP_VOIDCALL) || (opcode2 == OP_CALL) || (opcode2 == OP_LCALL) || (opcode2 == OP_FCALL))
+ ((MonoCallInst*)ins)->fptr = (gpointer)ins->inst_imm;
-static TreeMoverTreeMove*
-mono_cprop_copy_values (MonoCompile *cfg, TreeMover *tree_mover, MonoInst *tree, MonoInst **acp)
-{
- MonoInst *cp;
- int arity;
- TreeMoverTreeMove *pending_move = NULL;
-
- if (tree->ssa_op == MONO_SSA_LOAD && (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG) &&
- (cp = acp [tree->inst_i0->inst_c0]) && !tree->inst_i0->flags) {
-
- if (cp->opcode == OP_ICONST) {
- if (cfg->opt & MONO_OPT_CONSPROP) {
- //{ static int c = 0; printf ("CCOPY %d %d %s\n", c++, cp->inst_c0, mono_method_full_name (cfg->method, TRUE)); }
- if (MONO_DEBUG_LOCAL_PROP) {
- printf ("Propagating constant, tree ");
- mono_print_tree (tree);
- printf (" becomes ");
- mono_print_tree (cp);
- printf ("\n");
+ /* Allow further iterations */
+ srcindex = -1;
+ continue;
+ }
+ else {
+ /* Special cases */
+#if defined(TARGET_X86) || defined(TARGET_AMD64)
+ if ((ins->opcode == OP_X86_LEA) && (srcindex == 1)) {
+#if SIZEOF_REGISTER == 8
+ /* FIXME: Use OP_PADD_IMM when the new JIT is done */
+ ins->opcode = OP_LADD_IMM;
+#else
+ ins->opcode = OP_ADD_IMM;
+#endif
+ ins->inst_imm += def->inst_c0 << ins->backend.shift_amount;
+ ins->sreg2 = -1;
+ }
+#endif
+ opcode2 = mono_load_membase_to_load_mem (ins->opcode);
+ if ((srcindex == 0) && (opcode2 != -1) && mono_arch_is_inst_imm (def->inst_c0)) {
+ ins->opcode = opcode2;
+ ins->inst_imm = def->inst_c0 + ins->inst_offset;
+ ins->sreg1 = -1;
+ }
+ }
}
- *tree = *cp;
- }
- } else {
- if ((tree->inst_i0->inst_vtype->type == cp->inst_vtype->type) ||
- (tree->type == STACK_OBJ) || (tree->type == STACK_MP)) {
- if (cfg->opt & MONO_OPT_COPYPROP) {
- //{ static int c = 0; printf ("VCOPY %d\n", ++c); }
- if (MONO_DEBUG_LOCAL_PROP) {
- printf ("Propagating value, tree->inst_i0 ");
- mono_print_tree (tree->inst_i0);
- printf (" becomes ");
- mono_print_tree (cp);
- printf ("\n");
+ else if (((def->opcode == OP_ADD_IMM) || (def->opcode == OP_LADD_IMM)) && (MONO_IS_LOAD_MEMBASE (ins) || MONO_ARCH_IS_OP_MEMBASE (ins->opcode))) {
+ /* ADD_IMM is created by spill_global_vars */
+ /*
+ * We have to guarantee that def->sreg1 haven't changed since def->dreg
+ * was defined. cfg->frame_reg is assumed to remain constant.
+ */
+ if ((def->sreg1 == cfg->frame_reg) || ((def->next == ins) && (def->dreg != def->sreg1))) {
+ ins->inst_basereg = def->sreg1;
+ ins->inst_offset += def->inst_imm;
}
- tree->inst_i0 = cp;
+ } else if ((ins->opcode == OP_ISUB_IMM) && (def->opcode == OP_IADD_IMM) && (def->next == ins) && (def->dreg != def->sreg1)) {
+ ins->sreg1 = def->sreg1;
+ ins->inst_imm -= def->inst_imm;
+ } else if ((ins->opcode == OP_IADD_IMM) && (def->opcode == OP_ISUB_IMM) && (def->next == ins) && (def->dreg != def->sreg1)) {
+ ins->sreg1 = def->sreg1;
+ ins->inst_imm -= def->inst_imm;
+ } else if (ins->opcode == OP_STOREI1_MEMBASE_REG &&
+ (def->opcode == OP_ICONV_TO_U1 || def->opcode == OP_ICONV_TO_I1 || def->opcode == OP_SEXT_I4 || (SIZEOF_REGISTER == 8 && def->opcode == OP_LCONV_TO_U1)) &&
+ (!defs [def->sreg1] || (def_index [def->sreg1] < def_index [sreg]))) {
+ /* Avoid needless sign extension */
+ ins->sreg1 = def->sreg1;
+ } else if (ins->opcode == OP_STOREI2_MEMBASE_REG &&
+ (def->opcode == OP_ICONV_TO_U2 || def->opcode == OP_ICONV_TO_I2 || def->opcode == OP_SEXT_I4 || (SIZEOF_REGISTER == 8 && def->opcode == OP_LCONV_TO_I2)) &&
+ (!defs [def->sreg1] || (def_index [def->sreg1] < def_index [sreg]))) {
+ /* Avoid needless sign extension */
+ ins->sreg1 = def->sreg1;
}
- } else if (MONO_DEBUG_LOCAL_PROP) {
- char* tree_type_name = mono_type_full_name (tree->inst_i0->inst_vtype);
- char* cp_type_name = mono_type_full_name (cp->inst_vtype);
- printf ("Values of tree->inst_i0 ");
- mono_print_tree (tree->inst_i0);
- printf (" and cp ");
- mono_print_tree (cp);
- printf (" have incompatible types in tree ");
- mono_print_tree (tree);
- printf ("\n");
- printf (" MonoType of tree->inst_i0 is: %s\n", tree_type_name);
- printf (" MonoType of cp is: %s\n", cp_type_name);
- g_free (tree_type_name);
- g_free (cp_type_name);
}
- }
- } else {
- if (MONO_DEBUG_LOCAL_PROP) {
- printf ("Propagation SKIPPED for inst ");
- mono_print_tree (tree);
- printf ("\n");
- }
- if ((tree_mover != NULL) && (cfg->opt & MONO_OPT_CFOLD))
- mono_constant_fold_inst (tree, NULL);
-
- arity = mono_burg_arity [tree->opcode];
- if (arity) {
- TreeMoverTreeMove *result = mono_cprop_copy_values (cfg, tree_mover, tree->inst_i0, acp);
- if (cfg->opt & MONO_OPT_CFOLD)
- mono_constant_fold_inst (tree, NULL);
- if (result != NULL) {
- result->use = &(tree->inst_i0);
- //printf (" SETTING inst_i0[%p] USE to %p (definition is %p)\n", tree, result->use, result->definition);
-
- }
- /* The opcode may have changed */
- if (mono_burg_arity [tree->opcode] > 1) {
- if (cfg->opt & MONO_OPT_CFOLD)
- mono_constant_fold_inst (tree, NULL);
- result = mono_cprop_copy_values (cfg, tree_mover, tree->inst_i1, acp);
- if (result != NULL) {
- result->use = &(tree->inst_i1);
- //printf (" SETTING inst_i1[%p] USE to %p (definition is %p)\n", tree, result->use, result->definition);
+ /* Do strength reduction here */
+ /* FIXME: Add long/float */
+ switch (ins->opcode) {
+ case OP_MOVE:
+ case OP_XMOVE:
+ if (ins->dreg == ins->sreg1) {
+ MONO_DELETE_INS (bb, ins);
+ spec = INS_INFO (ins->opcode);
}
- }
- mono_constant_fold_inst (tree, NULL);
- }
- }
-
- /* Apply the tree mover after after propagation has been done */
- if ((tree_mover != NULL) && (tree->ssa_op == MONO_SSA_LOAD) &&
- (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG)) {
- guint used_index = tree->inst_i0->inst_c0;
- TreeMoverActSlot *used_slot = &(tree_mover->ACT [used_index]);
-
- /* First, handle waiting flag */
- if (used_slot->waiting_flag) {
- used_slot->unsafe_flag = TRUE;
- used_slot->waiting_flag = FALSE;
- }
-
- if (!tree->inst_i0->flags) {
- /* Record local use (the tree that contains this use might be movable) */
- tree_mover_add_used_node (tree_mover, used_slot, TRUE);
-
- /* Start working on the pending move... */
- pending_move = used_slot->pending_move;
-
- /* If there *is* a pending move... (otherwise, do nothing) */
- if (pending_move != NULL) {
- /* Check slot state */
- if (used_slot->pending_move_is_forwarded) {
- /* If the slot was a "hopefully dead" definition because of a forwarding... */
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Use should have been dead, killing slot %d: ", used_index);
- mono_print_tree_nl (tree);
- printf ("Also disabling forwarded definition at slot %d: ", tree_mover_slot_to_index (tree_mover, pending_move->defined_slot));
- mono_print_tree_nl (pending_move->definition);
- }
- /* ...clear the slot (which also disables the forwarded definition), and... */
- tree_mover_kill_act_slot_for_use (tree_mover, used_slot);
- /* ...clear the pending_move */
- pending_move = NULL;
- } else if (used_slot->pending_move_is_ready ||
- TREE_MOVER_STIND_NEEDS_CONVERSION (pending_move->definition->opcode, pending_move->definition->inst_i1->type) ||
- TREE_MOVER_LDIND_NEEDS_CONVERSION (tree->opcode, pending_move->definition->inst_i1->type)) {
- /* If the move was already in state [U], or if there are type problems... */
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Definition has too many, wrong or misplaced uses, killing slot %d: ", used_index);
- mono_print_tree_nl (tree);
- }
- /* ...kill it, and clear the pending_move */
- tree_mover_kill_act_slot_for_use (tree_mover, used_slot);
- pending_move = NULL;
+ break;
+ case OP_ADD_IMM:
+ case OP_IADD_IMM:
+ case OP_SUB_IMM:
+ case OP_ISUB_IMM:
+#if SIZEOF_REGISTER == 8
+ case OP_LADD_IMM:
+ case OP_LSUB_IMM:
+#endif
+ if (ins->inst_imm == 0) {
+ ins->opcode = OP_MOVE;
+ spec = INS_INFO (ins->opcode);
+ }
+ break;
+ case OP_MUL_IMM:
+ case OP_IMUL_IMM:
+#if SIZEOF_REGISTER == 8
+ case OP_LMUL_IMM:
+#endif
+ if (ins->inst_imm == 0) {
+ ins->opcode = (ins->opcode == OP_LMUL_IMM) ? OP_I8CONST : OP_ICONST;
+ ins->inst_c0 = 0;
+ ins->sreg1 = -1;
+ } else if (ins->inst_imm == 1) {
+ ins->opcode = OP_MOVE;
+ } else if ((ins->opcode == OP_IMUL_IMM) && (ins->inst_imm == -1)) {
+ ins->opcode = OP_INEG;
+ } else if ((ins->opcode == OP_LMUL_IMM) && (ins->inst_imm == -1)) {
+ ins->opcode = OP_LNEG;
} else {
- /* All goes well: set slot state to [U] */
- TreeMoverDependencyNode *node = used_slot->used_locals;
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Setting tree move for slot %d as ready: ", used_index);
- mono_print_tree_nl (tree);
+ int power2 = mono_is_power_of_two (ins->inst_imm);
+ if (power2 >= 0) {
+ ins->opcode = (ins->opcode == OP_MUL_IMM) ? OP_SHL_IMM : ((ins->opcode == OP_LMUL_IMM) ? OP_LSHL_IMM : OP_ISHL_IMM);
+ ins->inst_imm = power2;
}
- /* Record indirect uses generated by this move */
- while (node != NULL) {
- tree_mover_add_used_node (tree_mover, node->used_slot, FALSE);
- node = node->next_used_local;
+ }
+ spec = INS_INFO (ins->opcode);
+ break;
+ case OP_IREM_UN_IMM:
+ case OP_IDIV_UN_IMM: {
+ int c = ins->inst_imm;
+ int power2 = mono_is_power_of_two (c);
+
+ if (power2 >= 0) {
+ if (ins->opcode == OP_IREM_UN_IMM) {
+ ins->opcode = OP_IAND_IMM;
+ ins->sreg2 = -1;
+ ins->inst_imm = (1 << power2) - 1;
+ } else if (ins->opcode == OP_IDIV_UN_IMM) {
+ ins->opcode = OP_ISHR_UN_IMM;
+ ins->sreg2 = -1;
+ ins->inst_imm = power2;
}
-
- /* Setup tree as movable */
- used_slot->pending_move_is_ready = TRUE;
}
+ spec = INS_INFO (ins->opcode);
+ break;
}
- } else {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Tree has side effects, killing slot %d: ", used_index);
- mono_print_tree_nl (tree);
- }
- /* The whole tree is unmovable (it uses a flagged local) */
- tree_mover->tree_has_side_effects = TRUE;
- /* Moreover, the use of a flagged local kills the definition */
- tree_mover_kill_act_slot_for_use (tree_mover, used_slot);
- }
-#if MONO_DUMP_TREE_MOVER
- tree_mover_print_act_slot ("USE", tree_mover, used_slot);
-#endif
- }
- return pending_move;
-}
-
-static void
-mono_cprop_invalidate_values (MonoInst *tree, TreeMover *tree_mover, MonoInst **acp, int acp_size)
-{
- int arity;
-
- if (tree_mover != NULL) {
- if ((tree->opcode == CEE_NEWARR) || (mono_find_jit_opcode_emulation (tree->opcode) != NULL)) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Recording side effect because emulated opcode cannot be moved: ");
- mono_print_tree_nl (tree);
- }
- tree_mover->tree_has_side_effects = TRUE;
- }
- }
-
- switch (tree->opcode) {
- case CEE_LDIND_REF:
- case CEE_LDIND_I1:
- case CEE_LDIND_I2:
- case CEE_LDIND_I4:
- case CEE_LDIND_U1:
- case CEE_LDIND_U2:
- case CEE_LDIND_U4:
- case CEE_LDIND_I8:
- case CEE_LDIND_R4:
- case CEE_LDIND_R8:
- case CEE_LDIND_I:
- case CEE_LDOBJ:
- if ((tree_mover != NULL) && ((tree->ssa_op == MONO_SSA_NOP) || (tree->ssa_op & MONO_SSA_ADDRESS_TAKEN))) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Recording memory read at inst: ");
- mono_print_tree_nl (tree);
- }
- tree_mover->tree_reads_memory = TRUE;
- }
- break;
- case CEE_STIND_I:
- case CEE_STIND_I1:
- case CEE_STIND_I2:
- case CEE_STIND_I4:
- case CEE_STIND_REF:
- case CEE_STIND_I8:
- case CEE_STIND_R4:
- case CEE_STIND_R8:
- case CEE_STOBJ:
- if ((tree->ssa_op == MONO_SSA_NOP) || (tree->ssa_op & MONO_SSA_ADDRESS_TAKEN)) {
- if (MONO_DEBUG_LOCAL_PROP) {
- printf ("Indirect store clears ACP at tree ");
- mono_print_tree (tree);
- printf ("\n");
- }
- memset (acp, 0, sizeof (MonoInst *) * acp_size);
- if (tree_mover != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Killing all active slots (and recording side effect) because of inst ");
- mono_print_tree_nl (tree);
+ case OP_IDIV_IMM: {
+ int c = ins->inst_imm;
+ int power2 = mono_is_power_of_two (c);
+ MonoInst *tmp1, *tmp2, *tmp3, *tmp4;
+
+ /* FIXME: Move this elsewhere cause its hard to implement it here */
+ if (power2 == 1) {
+ int r1 = mono_alloc_ireg (cfg);
+
+ NEW_BIALU_IMM (cfg, tmp1, OP_ISHR_UN_IMM, r1, ins->sreg1, 31);
+ mono_bblock_insert_after_ins (bb, ins, tmp1);
+ NEW_BIALU (cfg, tmp2, OP_IADD, r1, r1, ins->sreg1);
+ mono_bblock_insert_after_ins (bb, tmp1, tmp2);
+ NEW_BIALU_IMM (cfg, tmp3, OP_ISHR_IMM, ins->dreg, r1, 1);
+ mono_bblock_insert_after_ins (bb, tmp2, tmp3);
+
+ NULLIFY_INS (ins);
+
+ // We allocated a new vreg, so need to restart
+ goto restart;
+ } else if (power2 > 0) {
+ int r1 = mono_alloc_ireg (cfg);
+
+ NEW_BIALU_IMM (cfg, tmp1, OP_ISHR_IMM, r1, ins->sreg1, 31);
+ mono_bblock_insert_after_ins (bb, ins, tmp1);
+ NEW_BIALU_IMM (cfg, tmp2, OP_ISHR_UN_IMM, r1, r1, (32 - power2));
+ mono_bblock_insert_after_ins (bb, tmp1, tmp2);
+ NEW_BIALU (cfg, tmp3, OP_IADD, r1, r1, ins->sreg1);
+ mono_bblock_insert_after_ins (bb, tmp2, tmp3);
+ NEW_BIALU_IMM (cfg, tmp4, OP_ISHR_IMM, ins->dreg, r1, power2);
+ mono_bblock_insert_after_ins (bb, tmp3, tmp4);
+
+ NULLIFY_INS (ins);
+
+ // We allocated a new vreg, so need to restart
+ goto restart;
}
- /* Note that this does *not* dispose ready moves (state [U]) */
- tree_mover_kill_act_for_indirect_local_definition (tree_mover, acp_size);
- tree_mover->tree_has_side_effects = TRUE;
- }
- return;
- }
-
- break;
- case CEE_CALL:
- case OP_CALL_REG:
- case CEE_CALLVIRT:
- case OP_LCALL_REG:
- case OP_LCALLVIRT:
- case OP_LCALL:
- case OP_FCALL_REG:
- case OP_FCALLVIRT:
- case OP_FCALL:
- case OP_VCALL_REG:
- case OP_VCALLVIRT:
- case OP_VCALL:
- case OP_VOIDCALL_REG:
- case OP_VOIDCALLVIRT:
- case OP_VOIDCALL: {
- MonoCallInst *call = (MonoCallInst *)tree;
- MonoMethodSignature *sig = call->signature;
- int i, byref = FALSE;
-
- if (tree_mover != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Recording side effect because of inst ");
- mono_print_tree_nl (tree);
- }
- tree_mover->tree_has_side_effects = TRUE;
- }
-
- for (i = 0; i < sig->param_count; i++) {
- if (sig->params [i]->byref) {
- byref = TRUE;
break;
}
- }
-
- if (byref) {
- if (MONO_DEBUG_LOCAL_PROP) {
- printf ("Call with byref parameter clears ACP at tree ");
- mono_print_tree (tree);
- printf ("\n");
- }
- memset (acp, 0, sizeof (MonoInst *) * acp_size);
- if (tree_mover != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Killing all active slots because of inst ");
- mono_print_tree_nl (tree);
- }
- tree_mover_kill_act_for_indirect_use (tree_mover, acp_size);
}
- } else {
- if (tree_mover != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Killing all active slots reading memory because of inst ");
- mono_print_tree_nl (tree);
+
+ if (spec [MONO_INST_DEST] != ' ') {
+ MonoInst *def = defs [ins->dreg];
+
+ if (def && (def->opcode == OP_ADD_IMM) && (def->sreg1 == cfg->frame_reg) && (MONO_IS_STORE_MEMBASE (ins))) {
+ /* ADD_IMM is created by spill_global_vars */
+ /* cfg->frame_reg is assumed to remain constant */
+ ins->inst_destbasereg = def->sreg1;
+ ins->inst_offset += def->inst_imm;
}
- tree_mover_kill_act_for_indirect_global_definition (tree_mover, acp_size);
}
- }
- return;
- }
-#define TREEMOVE_SPECIFIC_OPS 1
-#define OPDEF(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) case a1:
-#include "simple-cee-ops.h"
-#undef OPDEF
-#define MINI_OP(a1,a2) case a1:
-#include "simple-mini-ops.h"
-#undef MINI_OP
-#undef TREEMOVE_SPECIFIC_OPS
- break;
- default:
- if (tree_mover != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Recording side effect because of inst ");
- mono_print_tree_nl (tree);
+
+ if ((spec [MONO_INST_DEST] != ' ') && !MONO_IS_STORE_MEMBASE (ins) && !vreg_is_volatile (cfg, ins->dreg)) {
+ defs [ins->dreg] = ins;
+ def_index [ins->dreg] = ins_index;
}
- tree_mover->tree_has_side_effects = TRUE;
+
+ if (MONO_IS_CALL (ins))
+ last_call_index = ins_index;
+
+ ins_index ++;
}
- break;
}
+}
- arity = mono_burg_arity [tree->opcode];
-
- switch (arity) {
- case 0:
- break;
- case 1:
- mono_cprop_invalidate_values (tree->inst_i0, tree_mover, acp, acp_size);
- break;
- case 2:
- mono_cprop_invalidate_values (tree->inst_i0, tree_mover, acp, acp_size);
- mono_cprop_invalidate_values (tree->inst_i1, tree_mover, acp, acp_size);
- break;
- default:
- g_assert_not_reached ();
- }
+static inline gboolean
+reg_is_softreg_no_fpstack (int reg, const char spec)
+{
+ return (spec == 'i' && reg >= MONO_MAX_IREGS)
+ || ((spec == 'f' && reg >= MONO_MAX_FREGS) && !MONO_ARCH_USE_FPSTACK)
+#ifdef MONO_ARCH_SIMD_INTRINSICS
+ || (spec == 'x' && reg >= MONO_MAX_XREGS)
+#endif
+ || (spec == 'v');
+}
+
+static inline gboolean
+reg_is_softreg (int reg, const char spec)
+{
+ return (spec == 'i' && reg >= MONO_MAX_IREGS)
+ || (spec == 'f' && reg >= MONO_MAX_FREGS)
+#ifdef MONO_ARCH_SIMD_INTRINSICS
+ || (spec == 'x' && reg >= MONO_MAX_XREGS)
+#endif
+ || (spec == 'v');
}
-static void
-mono_local_cprop_bb (MonoCompile *cfg, TreeMover *tree_mover, MonoBasicBlock *bb, MonoInst **acp, int acp_size)
+/**
+ * mono_local_deadce:
+ *
+ * Get rid of the dead assignments to local vregs like the ones created by the
+ * copyprop pass.
+ */
+void
+mono_local_deadce (MonoCompile *cfg)
{
- MonoInst *tree = bb->code;
- int i;
+ MonoBasicBlock *bb;
+ MonoInst *ins, *prev;
+ MonoBitSet *used, *defined;
- if (!tree)
- return;
+ //mono_print_code (cfg, "BEFORE LOCAL-DEADCE");
- if (tree_mover != NULL) {
- tree_mover_set_waiting_flags (tree_mover, acp_size);
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Running tree mover on BB%d\n", bb->block_num);
- }
- }
- for (; tree; tree = tree->next) {
- if (tree_mover != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Running tree mover on tree ");
- mono_print_tree_nl (tree);
- }
- tree_mover->tree_has_side_effects = FALSE;
- tree_mover->tree_reads_memory = FALSE;
- }
+ /*
+ * Assignments to global vregs can't be eliminated so this pass must come
+ * after the handle_global_vregs () pass.
+ */
+
+ used = mono_bitset_mp_new_noinit (cfg->mempool, cfg->next_vreg + 1);
+ defined = mono_bitset_mp_new_noinit (cfg->mempool, cfg->next_vreg + 1);
- mono_cprop_copy_values (cfg, tree_mover, tree, acp);
- mono_cprop_invalidate_values (tree, tree_mover, acp, acp_size);
- if (MONO_DEBUG_TREE_MOVER) {
- if (tree_mover != NULL) {
- printf ("After the tree walk, tree_mover->tree_has_side_effects is %d\n", tree_mover->tree_has_side_effects);
+ /* First pass: collect liveness info */
+ for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
+ /* Manually init the defs entries used by the bblock */
+ MONO_BB_FOR_EACH_INS (bb, ins) {
+ const char *spec = INS_INFO (ins->opcode);
+ int sregs [MONO_MAX_SRC_REGS];
+ int num_sregs, i;
+
+ if (spec [MONO_INST_DEST] != ' ') {
+ mono_bitset_clear_fast (used, ins->dreg);
+ mono_bitset_clear_fast (defined, ins->dreg);
+#if SIZEOF_REGISTER == 4
+ /* Regpairs */
+ mono_bitset_clear_fast (used, ins->dreg + 1);
+ mono_bitset_clear_fast (defined, ins->dreg + 1);
+#endif
+ }
+ num_sregs = mono_inst_get_src_registers (ins, sregs);
+ for (i = 0; i < num_sregs; ++i) {
+ mono_bitset_clear_fast (used, sregs [i]);
+#if SIZEOF_REGISTER == 4
+ mono_bitset_clear_fast (used, sregs [i] + 1);
+#endif
}
}
- if (tree->ssa_op == MONO_SSA_STORE &&
- (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG)) {
- MonoInst *i1 = tree->inst_i1;
- TreeMoverActSlot *forwarding_source = NULL;
- gboolean tree_can_be_moved = TRUE;
-
- acp [tree->inst_i0->inst_c0] = NULL;
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Assignment clears ACP[%d] at tree ", tree->inst_i0->inst_c0);
- mono_print_tree (tree);
- printf ("\n");
+ /*
+ * Make a reverse pass over the instruction list
+ */
+ MONO_BB_FOR_EACH_INS_REVERSE_SAFE (bb, prev, ins) {
+ const char *spec = INS_INFO (ins->opcode);
+ int sregs [MONO_MAX_SRC_REGS];
+ int num_sregs, i;
+
+ if (ins->opcode == OP_NOP) {
+ MONO_DELETE_INS (bb, ins);
+ continue;
}
- for (i = 0; i < acp_size; i++) {
- if (acp [i] && acp [i]->opcode != OP_ICONST &&
- acp [i]->inst_c0 == tree->inst_i0->inst_c0) {
- acp [i] = NULL;
- if (MONO_DEBUG_LOCAL_PROP) {
- printf (" Consequently, ACP[%d] is cleared\n", i);
- }
- }
- }
-
- if (i1->opcode == OP_ICONST) {
- acp [tree->inst_i0->inst_c0] = i1;
- tree_can_be_moved = FALSE;
- if (MONO_DEBUG_LOCAL_PROP) {
- printf (" Consequently, ACP[%d] becomes constant ", tree->inst_i0->inst_c0);
- mono_print_tree (i1);
- printf ("\n");
- }
- //printf ("DEF1 BB%d %d\n", bb->block_num,tree->inst_i0->inst_c0);
- } else if ((i1->type==STACK_I8) || (i1->opcode==OP_I8CONST) || (i1->opcode==OP_R4CONST) || (i1->opcode==OP_R8CONST) || (i1->opcode==OP_AOTCONST)) {
- tree_can_be_moved = FALSE;
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Preventing move of constant or long value ");
- mono_print_tree (i1);
- printf ("\n");
- }
- }
- if (i1->ssa_op == MONO_SSA_LOAD &&
- (i1->inst_i0->opcode == OP_LOCAL || i1->inst_i0->opcode == OP_ARG) &&
- (i1->inst_i0->inst_c0 != tree->inst_i0->inst_c0)) {
- acp [tree->inst_i0->inst_c0] = i1->inst_i0;
- tree_can_be_moved = FALSE;
- if (MONO_DEBUG_LOCAL_PROP) {
- printf (" Consequently, ACP[%d] becomes local ", tree->inst_i0->inst_c0);
- mono_print_tree (i1->inst_i0);
- printf ("\n");
- }
- if (tree_mover != NULL) {
- /* Examine the variable *used* in this definition (the "source") */
- forwarding_source = tree_mover_slot_from_index (tree_mover, i1->inst_i0->inst_c0);
- /* Check if source slot is ready to be forwarded */
- if ((! forwarding_source->pending_move_is_ready) || (forwarding_source->pending_move->prevent_forwarding)) {
- /* no forwarding is possible, do nothing */
- forwarding_source = NULL;
+ g_assert (ins->opcode > MONO_CEE_LAST);
+
+ if (MONO_IS_NON_FP_MOVE (ins) && ins->prev) {
+ MonoInst *def;
+ const char *spec2;
+
+ def = ins->prev;
+ while (def->prev && (def->opcode == OP_NOP))
+ def = def->prev;
+ spec2 = INS_INFO (def->opcode);
+
+ /*
+ * Perform a limited kind of reverse copy propagation, i.e.
+ * transform B <- FOO; A <- B into A <- FOO
+ * This isn't copyprop, not deadce, but it can only be performed
+ * after handle_global_vregs () has run.
+ */
+ if (!get_vreg_to_inst (cfg, ins->sreg1) && (spec2 [MONO_INST_DEST] != ' ') && (def->dreg == ins->sreg1) && !mono_bitset_test_fast (used, ins->sreg1) && !MONO_IS_STORE_MEMBASE (def) && reg_is_softreg (ins->sreg1, spec [MONO_INST_DEST])) {
+ if (cfg->verbose_level > 2) {
+ printf ("\tReverse copyprop in BB%d on ", bb->block_num);
+ mono_print_ins (ins);
}
+
+ def->dreg = ins->dreg;
+ MONO_DELETE_INS (bb, ins);
+ spec = INS_INFO (ins->opcode);
}
- //printf ("DEF2 BB%d %d %d\n", bb->block_num,tree->inst_i0->inst_c0,i1->inst_i0->inst_c0);
}
-
- /* Apply tree mover */
- if (tree_mover != NULL) {
- guint defined_index = tree->inst_i0->inst_c0;
- TreeMoverActSlot *defined_slot = tree_mover_slot_from_index (tree_mover, defined_index);
- TreeMoverDependencyNode *affected_node;
-
- /* First clear the waiting flag... */
- defined_slot->waiting_flag = FALSE;
- /* ...and kill this slot (but recording any pending move)*/
- tree_mover_kill_act_slot_for_definition (tree_mover, defined_slot);
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Definition is clearing slot %d\n", defined_index);
- }
- /* Handle "used" nodes... */
- /* Check if this is a forwarding */
- if (forwarding_source == NULL) {
- /* Normal case, no forwarding: */
- /* Check that consprop or copyprop did not already do the job, */
- /* and that the tree has no side effects */
- if (tree_can_be_moved && ! tree_mover->tree_has_side_effects) {
- TreeMoverDependencyNode *affecting_node;
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Recording definition of slot %d by tree: ", defined_index);
- mono_print_tree_nl (tree);
- }
-
- /* Then apply the definition */
- tree_mover_new_slot_move (tree_mover, defined_slot);
- defined_slot->pending_move->definition = tree;
- defined_slot->pending_move->defined_slot = defined_slot;
- defined_slot->pending_move->tree_reads_memory = tree_mover->tree_reads_memory;
-
- /* Setup "used nodes" list */
- defined_slot->used_locals = tree_mover->used_nodes;
- defined_slot->last_used_local = tree_mover->last_used_node;
- tree_mover->used_nodes = NULL;
- tree_mover->last_used_node = NULL;
- /* Link used nodes to "affecting" slots (so affected variables are linked) */
- /* This is needed *now* so that circular definitions are detected */
- for (affecting_node = defined_slot->used_locals; affecting_node != NULL; affecting_node = affecting_node->next_used_local) {
- tree_mover_link_affecting_node (affecting_node, defined_slot);
- }
- } else if (MONO_DEBUG_TREE_MOVER) {
- /* otherwise, do nothing */
- printf ("Skipping definition of slot %d by tree: ", defined_index);
- mono_print_tree_nl (tree);
+ /* Enabling this on x86 could screw up the fp stack */
+ if (reg_is_softreg_no_fpstack (ins->dreg, spec [MONO_INST_DEST])) {
+ /*
+ * Assignments to global vregs can only be eliminated if there is another
+ * assignment to the same vreg later in the same bblock.
+ */
+ if (!mono_bitset_test_fast (used, ins->dreg) &&
+ (!get_vreg_to_inst (cfg, ins->dreg) || (!bb->extended && !vreg_is_volatile (cfg, ins->dreg) && mono_bitset_test_fast (defined, ins->dreg))) &&
+ MONO_INS_HAS_NO_SIDE_EFFECT (ins)) {
+ /* Happens with CMOV instructions */
+ if (ins->prev && ins->prev->opcode == OP_ICOMPARE_IMM) {
+ MonoInst *prev = ins->prev;
+ /*
+ * Can't use DELETE_INS since that would interfere with the
+ * FOR_EACH_INS loop.
+ */
+ NULLIFY_INS (prev);
}
- } else {
- TreeMoverDependencyFromDeadDefinition *dependency;
- /* forwarding previous definition: */
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Handling forwarding in slot %d for tree: ", defined_index);
- mono_print_tree_nl (tree);
- }
- /* Setup slot for forwarding */
- defined_slot->pending_move = forwarding_source->pending_move;
- defined_slot->pending_move_is_forwarded = TRUE;
- /* Setup forwarding dependency node */
- dependency = mono_mempool_alloc0 (tree_mover->pool, sizeof (TreeMoverDependencyFromDeadDefinition));
- dependency->defined_slot = defined_slot;
- dependency->dead_definition = tree;
- dependency->next = defined_slot->pending_move->slots_that_must_be_safe;
- defined_slot->pending_move->slots_that_must_be_safe = dependency;
- /* Clear use (put slot back to state [D]) */
- defined_slot->pending_move->use = NULL;
- defined_slot->pending_move->defined_slot->pending_move_is_ready = FALSE;
+ //printf ("DEADCE: "); mono_print_ins (ins);
+ MONO_DELETE_INS (bb, ins);
+ spec = INS_INFO (ins->opcode);
}
- /* Then kill all affected definitions waiting for a use */
- affected_node = defined_slot->affected_locals;
- while (affected_node != NULL) {
- TreeMoverDependencyNode *next_affected_node = affected_node->next_affected_local;
- TreeMoverActSlot *affected_slot = affected_node->affected_slot;
-
- if (affected_node->use_is_direct) {
- /* Direct use: kill affected slot */
- if (MONO_DEBUG_TREE_MOVER) {
- printf (" Direct use, killing slot %d with definition:", tree_mover_slot_to_index (tree_mover, affected_node->affected_slot));
- mono_print_tree_nl (affected_slot->pending_move->definition);
- }
- tree_mover_kill_act_slot_because_it_is_affected (tree_mover, affected_slot);
- } else if ((defined_slot->pending_move!= NULL) &&
- (! defined_slot->pending_move_is_ready) &&
- (! defined_slot->pending_move_is_forwarded) &&
- (affected_slot->pending_move!= NULL) &&
- (! affected_slot->pending_move_is_ready) &&
- (! affected_slot->pending_move_is_forwarded)) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf (" Indirect use, linking slots %d and %d\n", tree_mover_slot_to_index (tree_mover, affected_node->used_slot), tree_mover_slot_to_index (tree_mover, affected_node->affected_slot));
- }
- tree_mover_link_affected_moves (tree_mover, defined_slot, affected_slot);
- tree_mover_link_affected_moves (tree_mover, affected_slot, defined_slot);
- }
- tree_mover_unlink_affecting_node (affected_node);
-
- if ((next_affected_node != NULL) && (next_affected_node->affected_slot != NULL)) {
- affected_node = next_affected_node;
- } else {
- affected_node = defined_slot->affected_locals;
- }
- }
- if (MONO_DUMP_TREE_MOVER) {
- tree_mover_print_act_slot ("DEFINITION", tree_mover, defined_slot);
- }
+ if (spec [MONO_INST_DEST] != ' ')
+ mono_bitset_clear_fast (used, ins->dreg);
}
- }
- /* After we are done with this tree, clear the tree mover area */
- if ((tree_mover != NULL) && (tree_mover->used_nodes != NULL)) {
- tree_mover_dispose_used_nodes (tree_mover);
- }
+ if (spec [MONO_INST_DEST] != ' ')
+ mono_bitset_set_fast (defined, ins->dreg);
+ num_sregs = mono_inst_get_src_registers (ins, sregs);
+ for (i = 0; i < num_sregs; ++i)
+ mono_bitset_set_fast (used, sregs [i]);
+ if (MONO_IS_STORE_MEMBASE (ins))
+ mono_bitset_set_fast (used, ins->dreg);
- /*
- if (tree->opcode == CEE_BEQ) {
- g_assert (tree->inst_i0->opcode == OP_COMPARE);
- if (tree->inst_i0->inst_i0->opcode == OP_ICONST &&
- tree->inst_i0->inst_i1->opcode == OP_ICONST) {
-
- tree->opcode = CEE_BR;
- if (tree->inst_i0->inst_i0->opcode == tree->inst_i0->inst_i1->opcode) {
- tree->inst_target_bb = tree->inst_true_bb;
- } else {
- tree->inst_target_bb = tree->inst_false_bb;
- }
- }
- }
- */
- }
-
- if (tree_mover != NULL) {
- /* At BB end, kill all definitions still waiting for a use */
- tree_mover_clear_act_recording_moves (tree_mover, acp_size);
- if (MONO_DEBUG_TREE_MOVER) {
- tree_mover_verify_dependency_nodes_are_clear (tree_mover, acp_size);
- }
- }
-}
+ if (MONO_IS_CALL (ins)) {
+ MonoCallInst *call = (MonoCallInst*)ins;
+ GSList *l;
+ if (call->out_ireg_args) {
+ for (l = call->out_ireg_args; l; l = l->next) {
+ guint32 regpair, reg;
-#if (MONO_APPLY_TREE_MOVER_TO_SINGLE_METHOD)
-static char*
-mono_tree_mover_method_name = NULL;
-static gboolean check_tree_mover_method_name (MonoCompile *cfg) {
- if (mono_tree_mover_method_name == NULL) {
- mono_tree_mover_method_name = getenv ("MONO_TREE_MOVER_METHOD_NAME");
- }
- if (mono_tree_mover_method_name != NULL) {
- char *method_name = mono_method_full_name (cfg->method, TRUE);
- if (strstr (method_name, mono_tree_mover_method_name) != NULL) {
- g_free (method_name);
- return TRUE;
- } else {
- g_free (method_name);
- return FALSE;
- }
- } else {
- return TRUE;
- }
-}
-#endif
-
-#if (MONO_APPLY_TREE_MOVER_TO_COUNTED_METHODS)
-static int
-mono_tree_mover_method_limit = -1;
-static int
-mono_tree_mover_method_count = 0;
-static gboolean check_tree_mover_method_count (MonoCompile *cfg) {
- if (mono_tree_mover_method_limit == -1) {
- char *limit_string = getenv ("MONO_TREE_MOVER_METHOD_LIMIT");
- if (limit_string != NULL) {
- mono_tree_mover_method_limit = atoi (limit_string);
- } else {
- mono_tree_mover_method_limit = -2;
- }
- }
- if (mono_tree_mover_method_limit > -1) {
- mono_tree_mover_method_count ++;
- if (mono_tree_mover_method_count == mono_tree_mover_method_limit) {
- char *method_name = mono_method_full_name (cfg->method, TRUE);
- printf ("Last method compiled with treeprop: %s\n", method_name);
- g_free (method_name);
-
- }
- return (mono_tree_mover_method_count <= mono_tree_mover_method_limit);
- } else {
- return TRUE;
- }
-}
-#endif
-
-static void
-apply_tree_mover (TreeMover *tree_mover, TreeMoverTreeMove *move) {
- TreeMoverDependencyFromDeadDefinition *dependency;
- TreeMoverAffectedMove *affected_move;
-
- /* Test if this move has been explicitly disabled */
- if (move->skip_this_move) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Move of slot %d must be skipped: ", tree_mover_slot_to_index (tree_mover, move->defined_slot));
- mono_print_tree_nl (move->definition);
- }
- return;
- }
- /* Test if this move is safe */
- if ((! move->move_is_safe) && move->defined_slot->unsafe_flag) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Move of slot %d is unsafe: ", tree_mover_slot_to_index (tree_mover, move->defined_slot));
- mono_print_tree_nl (move->definition);
- }
- return;
- }
- /* Test if this move depends from a definition that should have been dead */
- for (dependency = move->slots_that_must_be_safe; dependency != NULL; dependency = dependency->next) {
- if ((dependency->defined_slot != NULL) && dependency->defined_slot->unsafe_flag) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Move of slot %d depended from unsafe slot %d: ", tree_mover_slot_to_index (tree_mover, move->defined_slot), tree_mover_slot_to_index (tree_mover, dependency->defined_slot));
- mono_print_tree_nl (move->definition);
- }
- return;
- }
- }
+ regpair = (guint32)(gssize)(l->data);
+ reg = regpair & 0xffffff;
+
+ mono_bitset_set_fast (used, reg);
+ }
+ }
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("Performing move of slot %d: ", tree_mover_slot_to_index (tree_mover, move->defined_slot));
- mono_print_tree_nl (move->definition);
- }
- /* All tests passed, apply move */
- *(move->use) = move->definition->inst_i1;
- move->definition->opcode = CEE_NOP;
- move->definition->ssa_op = MONO_SSA_NOP;
-
- /* Then disable moves affected by this move */
- affected_move = move->affected_moves;
- while (affected_move != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf (" Consequently, disabling slot %d\n", tree_mover_slot_to_index (tree_mover, affected_move->affected_move->defined_slot));
- }
- affected_move->affected_move->skip_this_move = TRUE;
- affected_move = affected_move->next_affected_move;
- }
+ if (call->out_freg_args) {
+ for (l = call->out_freg_args; l; l = l->next) {
+ guint32 regpair, reg;
- /* Also kill dead dependency definitions */
- for (dependency = move->slots_that_must_be_safe; dependency != NULL; dependency = dependency->next) {
- if (dependency->defined_slot != NULL) {
- if (MONO_DEBUG_TREE_MOVER) {
- printf (" Consequently, kill dependent definition %d: ", tree_mover_slot_to_index (tree_mover, dependency->defined_slot));
- mono_print_tree_nl (dependency->dead_definition);
+ regpair = (guint32)(gssize)(l->data);
+ reg = regpair & 0xffffff;
+
+ mono_bitset_set_fast (used, reg);
+ }
+ }
}
- dependency->dead_definition->opcode = CEE_NOP;
- dependency->dead_definition->ssa_op = MONO_SSA_NOP;
- }
- }
-}
-
-void
-mono_local_cprop (MonoCompile *cfg) {
- MonoBasicBlock *bb;
- MonoInst **acp;
- TreeMover *tree_mover;
-
- acp = alloca (sizeof (MonoInst *) * cfg->num_varinfo);
-
- if (cfg->opt & MONO_OPT_TREEPROP) {
- MonoMemPool *pool = mono_mempool_new();
- tree_mover = mono_mempool_alloc0(pool, sizeof (TreeMover));
-
- tree_mover->cfg = cfg;
- tree_mover->pool = pool;
- tree_mover->ACT = mono_mempool_alloc0 (pool, sizeof (TreeMoverActSlot) * (cfg->num_varinfo));
-#if (MONO_APPLY_TREE_MOVER_TO_SINGLE_METHOD)
- if (! check_tree_mover_method_name (cfg)) {
- mono_mempool_destroy(tree_mover->pool);
- tree_mover = NULL;
- }
-#endif
-#if (MONO_APPLY_TREE_MOVER_TO_COUNTED_METHODS)
- if (! check_tree_mover_method_count (cfg)) {
- mono_mempool_destroy(tree_mover->pool);
- tree_mover = NULL;
}
-#endif
- } else {
- tree_mover = NULL;
}
- for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
- if (MONO_DEBUG_LOCAL_PROP||MONO_DEBUG_TREE_MOVER) {
- printf ("Applying mono_local_cprop to BB%d\n", bb->block_num);
- }
- memset (acp, 0, sizeof (MonoInst *) * cfg->num_varinfo);
- mono_local_cprop_bb (cfg, tree_mover, bb, acp, cfg->num_varinfo);
- }
-
- if (tree_mover != NULL) {
- TreeMoverTreeMove *move;
- /* Move the movable trees */
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("BEFORE TREE MOVER START\n");
- mono_print_code (cfg);
- printf ("BEFORE TREE MOVER END\n");
- printf ("Applying tree mover...\n");
- }
- for (move = tree_mover->scheduled_moves; move != NULL; move = move->next) {
- apply_tree_mover (tree_mover, move);
- }
- if (MONO_DEBUG_TREE_MOVER) {
- printf ("AFTER TREE MOVER START\n");
- mono_print_code (cfg);
- printf ("AFTER TREE MOVER END\n");
- }
-
- /* Global cleanup of tree mover memory */
- mono_mempool_destroy(tree_mover->pool);
- }
+ //mono_print_code (cfg, "AFTER LOCAL-DEADCE");
}
projects / mono.git / blobdiff