#include "trouts.h"
#include "pmap.h"
#include "xmalloc.h"
+#include "iropt_dbg.h"
/** Walker environment */
typedef struct _walker_env {
wenv->nr_of_intrinsics += r->i_mapper(node, r->ctx) ? 1 : 0;
}
} else {
- if (0 <= op->code && op->code < ARR_LEN(wenv->i_map)) {
+ if (op->code < (unsigned) ARR_LEN(wenv->i_map)) {
const i_instr_record *r = wenv->i_map[op->code];
/* run all possible mapper */
while (r) {
}
}
}
-}
+} /* call_mapper */
/* Go through all graphs and map calls to intrinsic functions. */
-unsigned lower_intrinsics(i_record *list, int length) {
+unsigned lower_intrinsics(i_record *list, int length, int part_block_used) {
int i, n_ops = get_irp_n_opcodes();
ir_graph *irg;
pmap *c_map = pmap_create_ex(length);
pmap_insert(c_map, list[i].i_call.i_ent, (void *)&list[i].i_call);
} else {
ir_op *op = list[i].i_instr.op;
- assert(0 <= op->code && op->code < ARR_LEN(i_map));
+ assert(op->code < (unsigned) ARR_LEN(i_map));
list[i].i_instr.link = i_map[op->code];
i_map[op->code] = &list[i].i_instr;
for (i = get_irp_n_irgs() - 1; i >= 0; --i) {
irg = get_irp_irg(i);
+ if (part_block_used)
+ collect_phiprojs(irg);
+
wenv.nr_of_intrinsics = 0;
irg_walk_graph(irg, NULL, call_mapper, &wenv);
pmap_destroy(c_map);
return nr_of_intrinsics;
-}
-
-/* A mapper for the integer abs. */
-int i_mapper_Abs(ir_node *call, void *ctx) {
- ir_node *mem = get_Call_mem(call);
- ir_node *block = get_nodes_block(call);
- ir_node *op = get_Call_param(call, 0);
- ir_node *irn;
- dbg_info *dbg = get_irn_dbg_info(call);
+} /* lower_intrinsics */
- irn = new_rd_Abs(dbg, current_ir_graph, block, op, get_irn_mode(op));
+/**
+ * Helper function, replace the call by the given node.
+ *
+ * @param irn the result node
+ * @param call the call to replace
+ * @param mem the new mem result
+ * @param reg_jmp new regular control flow, if NULL, a Jmp will be used
+ * @param exc_jmp new exception control flow, if reg_jmp == NULL, a Bad will be used
+ */
+static void replace_call(ir_node *irn, ir_node *call, ir_node *mem, ir_node *reg_jmp, ir_node *exc_jmp) {
+ if (reg_jmp == NULL) {
+ ir_node *block = get_nodes_block(call);
+
+ /* Beware: do we need here a protection against CSE? Better we do it. */
+ int old_cse = get_opt_cse();
+ set_opt_cse(0);
+ reg_jmp = new_r_Jmp(current_ir_graph, block);
+ set_opt_cse(old_cse);
+ exc_jmp = new_Bad();
+ }
irn = new_Tuple(1, &irn);
turn_into_tuple(call, pn_Call_max);
set_Tuple_pred(call, pn_Call_M_regular, mem);
- set_Tuple_pred(call, pn_Call_X_regular, new_r_Jmp(current_ir_graph, block));
- set_Tuple_pred(call, pn_Call_X_except, new_Bad());
+ set_Tuple_pred(call, pn_Call_X_regular, reg_jmp);
+ set_Tuple_pred(call, pn_Call_X_except, exc_jmp);
set_Tuple_pred(call, pn_Call_T_result, irn);
set_Tuple_pred(call, pn_Call_M_except, mem);
set_Tuple_pred(call, pn_Call_P_value_res_base, new_Bad());
+} /* replace_call */
+/* A mapper for the integer abs. */
+int i_mapper_abs(ir_node *call, void *ctx) {
+ ir_node *mem = get_Call_mem(call);
+ ir_node *block = get_nodes_block(call);
+ ir_node *op = get_Call_param(call, 0);
+ ir_node *irn;
+ dbg_info *dbg = get_irn_dbg_info(call);
+ (void) ctx;
+
+ irn = new_rd_Abs(dbg, current_ir_graph, block, op, get_irn_mode(op));
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_ABS);
+ replace_call(irn, call, mem, NULL, NULL);
return 1;
-}
+} /* i_mapper_abs */
/* A mapper for the alloca() function. */
-int i_mapper_Alloca(ir_node *call, void *ctx) {
+int i_mapper_alloca(ir_node *call, void *ctx) {
ir_node *mem = get_Call_mem(call);
ir_node *block = get_nodes_block(call);
ir_node *op = get_Call_param(call, 0);
ir_node *irn, *exc, *no_exc;
dbg_info *dbg = get_irn_dbg_info(call);
+ (void) ctx;
irn = new_rd_Alloc(dbg, current_ir_graph, block, mem, op, firm_unknown_type, stack_alloc);
mem = new_Proj(irn, mode_M, pn_Alloc_M);
no_exc = new_Proj(irn, mode_X, pn_Alloc_X_regular);
exc = new_Proj(irn, mode_X, pn_Alloc_X_except);
irn = new_Proj(irn, get_modeP_data(), pn_Alloc_res);
- irn = new_Tuple(1, &irn);
- turn_into_tuple(call, pn_Call_max);
- set_Tuple_pred(call, pn_Call_M_regular, mem);
- set_Tuple_pred(call, pn_Call_X_regular, no_exc);
- set_Tuple_pred(call, pn_Call_X_except, exc);
- set_Tuple_pred(call, pn_Call_T_result, irn);
- set_Tuple_pred(call, pn_Call_M_except, mem);
- set_Tuple_pred(call, pn_Call_P_value_res_base, new_Bad());
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_ALLOCA);
+ replace_call(irn, call, mem, no_exc, exc);
+ return 1;
+} /* i_mapper_alloca */
+/* A mapper for the floating point sqrt. */
+int i_mapper_sqrt(ir_node *call, void *ctx) {
+ ir_node *mem;
+ tarval *tv;
+ ir_node *op = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (!is_Const(op))
+ return 0;
+
+ tv = get_Const_tarval(op);
+ if (! tarval_is_null(tv) && !tarval_is_one(tv))
+ return 0;
+
+ mem = get_Call_mem(call);
+
+ /* sqrt(0) = 0, sqrt(1) = 1 */
+ DBG_OPT_ALGSIM0(call, op, FS_OPT_RTS_SQRT);
+ replace_call(op, call, mem, NULL, NULL);
+ return 1;
+} /* i_mapper_sqrt */
+
+/* A mapper for the floating point cbrt. */
+int i_mapper_cbrt(ir_node *call, void *ctx) {
+ ir_node *mem;
+ tarval *tv;
+ ir_node *op = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (!is_Const(op))
+ return 0;
+
+ tv = get_Const_tarval(op);
+ if (! tarval_is_null(tv) && !tarval_is_one(tv) && !tarval_is_minus_one(tv))
+ return 0;
+
+ mem = get_Call_mem(call);
+
+ /* cbrt(0) = 0, cbrt(1) = 1, cbrt(-1) = -1 */
+ DBG_OPT_ALGSIM0(call, op, FS_OPT_RTS_CBRT);
+ replace_call(op, call, mem, NULL, NULL);
return 1;
-}
+} /* i_mapper_cbrt */
+
+/* A mapper for the floating point pow. */
+int i_mapper_pow(ir_node *call, void *ctx) {
+ dbg_info *dbg;
+ ir_node *mem;
+ ir_node *left = get_Call_param(call, 0);
+ ir_node *right = get_Call_param(call, 1);
+ ir_node *block = get_nodes_block(call);
+ ir_node *irn, *reg_jmp = NULL, *exc_jmp = NULL;
+ (void) ctx;
+
+ if (is_Const(left) && is_Const_one(left)) {
+ /* pow (1.0, x) = 1.0 */
+ irn = left;
+ } else if (is_Const(right)) {
+ tarval *tv = get_Const_tarval(right);
+ if (tarval_is_null(tv)) {
+ /* pow(x, 0.0) = 1.0 */
+ ir_mode *mode = get_tarval_mode(tv);
+ irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ } else if (tarval_is_one(tv)) {
+ /* pow(x, 1.0) = x */
+ irn = left;
+ } else if (tarval_is_minus_one(tv)) {
+ /* pow(x, -1.0) = 1/x */
+ irn = NULL;
+ } else
+ return 0;
+ } else {
+ return 0;
+ }
+
+ mem = get_Call_mem(call);
+ dbg = get_irn_dbg_info(call);
+
+ if (irn == NULL) {
+ ir_mode *mode = get_irn_mode(left);
+ ir_node *quot;
+
+ irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ quot = new_rd_Quot(dbg, current_ir_graph, block, mem, irn, left, mode, op_pin_state_pinned);
+ mem = new_r_Proj(current_ir_graph, block, quot, mode_M, pn_Quot_M);
+ irn = new_r_Proj(current_ir_graph, block, quot, mode, pn_Quot_res);
+ reg_jmp = new_r_Proj(current_ir_graph, block, quot, mode_X, pn_Quot_X_regular);
+ exc_jmp = new_r_Proj(current_ir_graph, block, quot, mode_X, pn_Quot_X_except);
+ }
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_POW);
+ replace_call(irn, call, mem, reg_jmp, exc_jmp);
+ return 1;
+} /* i_mapper_pow */
+
+/* A mapper for the floating point exp. */
+int i_mapper_exp(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* exp(0.0) = 1.0 */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ ir_node *mem = get_Call_mem(call);
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_EXP);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_exp */
+
+/* A mapper for the floating point log. */
+int i_mapper_log(ir_node *call, void *ctx) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_one(val)) {
+ /* log(1.0) = 0.0 */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ ir_node *mem = get_Call_mem(call);
+ DBG_OPT_ALGSIM0(call, val, FS_OPT_RTS_LOG);
+ replace_call(val, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_log */
+
+/**
+ * A mapper for mapping f(0.0) to 0.0.
+ */
+static int i_mapper_zero_to_zero(ir_node *call, void *ctx, int reason) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* f(0.0) = 0.0 */
+ ir_node *mem = get_Call_mem(call);
+ DBG_OPT_ALGSIM0(call, val, reason);
+ replace_call(val, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_zero_to_zero */
+
+/**
+ * A mapper for mapping f(1.0) to 0.0.
+ */
+static int i_mapper_one_to_zero(ir_node *call, void *ctx, int reason) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_Const(val) && is_Const_one(val)) {
+ /* acos(1.0) = 0.0 */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ ir_node *mem = get_Call_mem(call);
+ DBG_OPT_ALGSIM0(call, irn, reason);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_one_to_zero */
+
+/**
+ * A mapper for mapping a functions with the following characteristics:
+ * f(-x) = f(x).
+ * f(0.0) = 1.0
+ */
+static int i_mapper_symmetric_zero_to_one(ir_node *call, void *ctx, int reason) {
+ ir_node *val = get_Call_param(call, 0);
+ (void) ctx;
+
+ if (is_strictConv(val)) {
+ ir_node *op = get_Conv_op(val);
+ if (is_Minus(op)) {
+ /* f(-x) = f(x) with strictConv */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ dbg_info *dbg = get_irn_dbg_info(val);
+
+ op = get_Minus_op(op);
+ val = new_rd_Conv(dbg, current_ir_graph, block, op, mode);
+ if (is_Conv(val)) {
+ /* still a Conv ? */
+ set_Conv_strict(val, 1);
+ }
+ DBG_OPT_ALGSIM2(call, op, call, FS_OPT_RTS_SYMMETRIC);
+ set_Call_param(call, 0, val);
+ }
+ } else if (is_Minus(val)) {
+ /* f(-x) = f(x) */
+ val = get_Minus_op(val);
+ DBG_OPT_ALGSIM2(call, val, call, FS_OPT_RTS_SYMMETRIC);
+ set_Call_param(call, 0, val);
+ }
+
+ if (is_Const(val) && is_Const_null(val)) {
+ /* f(0.0) = 1.0 */
+ ir_node *block = get_nodes_block(call);
+ ir_mode *mode = get_irn_mode(val);
+ ir_node *irn = new_r_Const(current_ir_graph, block, mode, get_mode_one(mode));
+ ir_node *mem = get_Call_mem(call);
+ DBG_OPT_ALGSIM0(call, irn, reason);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_symmetric_zero_to_one */
+
+/* A mapper for the floating point sin. */
+int i_mapper_sin(ir_node *call, void *ctx) {
+ /* sin(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx, FS_OPT_RTS_SIN);
+} /* i_mapper_sin */
+
+/* A mapper for the floating point cos. */
+int i_mapper_cos(ir_node *call, void *ctx) {
+ /* cos(0.0) = 1.0, cos(-x) = x */
+ return i_mapper_symmetric_zero_to_one(call, ctx, FS_OPT_RTS_COS);
+} /* i_mapper_cos */
+
+/* A mapper for the floating point tan. */
+int i_mapper_tan(ir_node *call, void *ctx) {
+ /* tan(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx, FS_OPT_RTS_TAN);
+} /* i_mapper_tan */
+
+/* A mapper for the floating point asin. */
+int i_mapper_asin(ir_node *call, void *ctx) {
+ /* asin(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx, FS_OPT_RTS_ASIN);
+} /* i_mapper_asin */
+
+/* A mapper for the floating point acos. */
+int i_mapper_acos(ir_node *call, void *ctx) {
+ /* acos(1.0) = 0.0 */
+ return i_mapper_one_to_zero(call, ctx, FS_OPT_RTS_ACOS);
+} /* i_mapper_acos */
+
+/* A mapper for the floating point atan. */
+int i_mapper_atan(ir_node *call, void *ctx) {
+ /* atan(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx, FS_OPT_RTS_ATAN);
+} /* i_mapper_atan */
+
+/* A mapper for the floating point sinh. */
+int i_mapper_sinh(ir_node *call, void *ctx) {
+ /* sinh(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx, FS_OPT_RTS_SINH);
+} /* i_mapper_sinh */
+
+/* A mapper for the floating point cosh. */
+int i_mapper_cosh(ir_node *call, void *ctx) {
+ /* cosh(0.0) = 1.0, cosh(-x) = x */
+ return i_mapper_symmetric_zero_to_one(call, ctx, FS_OPT_RTS_COSH);
+} /* i_mapper_cosh */
+
+/* A mapper for the floating point tanh. */
+int i_mapper_tanh(ir_node *call, void *ctx) {
+ /* tanh(0.0) = 0.0 */
+ return i_mapper_zero_to_zero(call, ctx, FS_OPT_RTS_TANH);
+} /* i_mapper_tanh */
+
+/* A mapper for strcmp */
+int i_mapper_strcmp(ir_node *call, void *ctx) {
+ ir_node *left = get_Call_param(call, 0);
+ ir_node *right = get_Call_param(call, 1);
+ ir_node *irn;
+ (void) ctx;
+
+ if (left == right) {
+ /* a strcmp(s, s) ==> 0 */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *adr = get_Call_ptr(call);
+ ir_entity *ent = get_SymConst_entity(adr);
+ ir_type *call_tp = get_entity_type(ent);
+ ir_type *res_tp = get_method_res_type(call_tp, 0);
+ ir_mode *mode = get_type_mode(res_tp);
+ ir_node *block = get_nodes_block(call);
+
+ irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_STRCMP);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_strcmp */
+
+/* A mapper for strncmp */
+int i_mapper_strncmp(ir_node *call, void *ctx) {
+ ir_node *left = get_Call_param(call, 0);
+ ir_node *right = get_Call_param(call, 1);
+ ir_node *len = get_Call_param(call, 2);
+ ir_node *irn;
+ (void) ctx;
+
+ if (left == right || (is_Const(len) && is_Const_null(len))) {
+ /* a strncmp(s, s, len) ==> 0 OR
+ a strncmp(a, b, 0) ==> 0 */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *adr = get_Call_ptr(call);
+ ir_entity *ent = get_SymConst_entity(adr);
+ ir_type *call_tp = get_entity_type(ent);
+ ir_type *res_tp = get_method_res_type(call_tp, 0);
+ ir_mode *mode = get_type_mode(res_tp);
+ ir_node *block = get_nodes_block(call);
+
+ irn = new_r_Const(current_ir_graph, block, mode, get_mode_null(mode));
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_STRNCMP);
+ replace_call(irn, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_strncmp */
+
+/**
+ * Calculate the value of strlen if possible.
+ *
+ * @param ent the entity
+ * @param res_tp the result type
+ */
+static ir_node *eval_strlen(ir_entity *ent, ir_type *res_tp) {
+ ir_type *tp = get_entity_type(ent);
+ ir_mode *mode;
+ int i, n, len = -1;
+
+ if (! is_Array_type(tp))
+ return NULL;
+ tp = get_array_element_type(tp);
+ if (! is_Primitive_type(tp))
+ return NULL;
+ mode = get_type_mode(tp);
+
+ /* FIXME: This is too restrict, as the type char might be more the 8bits */
+ if (!mode_is_int(mode) || get_mode_size_bits(mode) != get_mode_size_bits(mode_Bs))
+ return NULL;
+
+ n = get_compound_ent_n_values(ent);
+ for (i = 0; i < n; ++i) {
+ ir_node *irn = get_compound_ent_value(ent, i);
+
+ if (! is_Const(irn))
+ return NULL;
+
+ if (is_Const_null(irn)) {
+ /* found the length */
+ len = i;
+ break;
+ }
+ }
+ if (len >= 0) {
+ tarval *tv = new_tarval_from_long(len, get_type_mode(res_tp));
+ return new_Const_type(tv, res_tp);
+ }
+ return NULL;
+} /* eval_strlen */
+
+/* A mapper for strlen */
+int i_mapper_strlen(ir_node *call, void *ctx) {
+ ir_node *s = get_Call_param(call, 0);
+ ir_node *irn = NULL;
+
+ /* FIXME: this cannot handle constant strings inside struct initializers yet */
+ if (is_SymConst(s) && get_SymConst_kind(s) == symconst_addr_ent) {
+ ir_entity *ent = get_SymConst_entity(s);
+
+ if (get_entity_variability(ent) == variability_constant) {
+ /* a constant entity */
+ ir_type *tp = get_Call_type(call);
+
+ tp = get_method_res_type(tp, 0);
+ irn = eval_strlen(ent, tp);
+
+ if (irn) {
+ ir_node *mem = get_Call_mem(call);
+ DBG_OPT_ALGSIM0(call, irn, FS_OPT_RTS_STRLEN);
+ replace_call(irn, call, mem, NULL, NULL);
+ }
+ }
+ }
+ return 0;
+} /* i_mapper_strlen */
+
+/* A mapper for memcpy */
+int i_mapper_memcpy(ir_node *call, void *ctx) {
+ ir_node *len = get_Call_param(call, 2);
+ (void) ctx;
+
+ if (is_Const(len) && is_Const_null(len)) {
+ /* a memcpy(d, s, 0) ==> d */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *dst = get_Call_param(call, 0);
+
+ DBG_OPT_ALGSIM0(call, dst, FS_OPT_RTS_MEMCPY);
+ replace_call(dst, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_memcpy */
+
+/* A mapper for memset */
+int i_mapper_memset(ir_node *call, void *ctx) {
+ ir_node *len = get_Call_param(call, 2);
+ (void) ctx;
+
+ if (is_Const(len) && is_Const_null(len)) {
+ /* a memset(d, C, 0) ==> d */
+ ir_node *mem = get_Call_mem(call);
+ ir_node *dst = get_Call_param(call, 0);
+
+ DBG_OPT_ALGSIM0(call, dst, FS_OPT_RTS_MEMSET);
+ replace_call(dst, call, mem, NULL, NULL);
+ return 1;
+ }
+ return 0;
+} /* i_mapper_memset */
/**
* Returns the result mode of a node.
case iro_DivMod: return get_DivMod_resmode(node);
default: return NULL;
}
-}
+} /* get_irn_res_mode */
#define LMAX(a, b) ((a) > (b) ? (a) : (b))
}
/* should not happen */
return 0;
-}
+} /* i_mapper_RuntimeCall */
projects / libfirm / blobdiff