/*
- * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2010 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
/**
* @file
* @brief code selection (transform FIRM into SPARC FIRM)
- * @version $Id: TEMPLATE_transform.c 26673 2009-10-01 16:43:13Z matze $
+ * @version $Id$
*/
-
#include "config.h"
#include "irnode_t.h"
#include "../beirg.h"
#include "../beutil.h"
#include "../betranshlp.h"
+#include "../beabihelper.h"
#include "bearch_sparc_t.h"
#include "sparc_nodes_attr.h"
#include "gen_sparc_new_nodes.h"
#include "gen_sparc_regalloc_if.h"
+#include "sparc_cconv.h"
#include <limits.h>
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
-static sparc_code_gen_t *env_cg;
+static sparc_code_gen_t *env_cg;
+static beabi_helper_env_t *abihelper;
+static const arch_register_t *sp_reg = &sparc_gp_regs[REG_SP];
+static const arch_register_t *fp_reg = &sparc_gp_regs[REG_FRAME_POINTER];
+static calling_convention_t *cconv = NULL;
+static ir_mode *mode_gp;
+static ir_mode *mode_fp;
+static pmap *node_to_stack;
+
+static ir_node *gen_SymConst(ir_node *node);
+
static inline int mode_needs_gp_reg(ir_mode *mode)
{
return mode_is_int(mode) || mode_is_reference(mode);
}
+/**
+ * Create an And that will zero out upper bits.
+ *
+ * @param dbgi debug info
+ * @param block the basic block
+ * @param op the original node
+ * @param src_bits number of lower bits that will remain
+ */
+static ir_node *gen_zero_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
+ int src_bits)
+{
+ if (src_bits == 8) {
+ return new_bd_sparc_And_imm(dbgi, block, op, 0xFF);
+ } else if (src_bits == 16) {
+ ir_node *lshift = new_bd_sparc_Sll_imm(dbgi, block, op, 16);
+ ir_node *rshift = new_bd_sparc_Slr_imm(dbgi, block, lshift, 16);
+ return rshift;
+ } else {
+ panic("zero extension only supported for 8 and 16 bits");
+ }
+}
+
+/**
+ * Generate code for a sign extension.
+ *
+ * @param dbgi debug info
+ * @param block the basic block
+ * @param op the original node
+ * @param src_bits number of lower bits that will remain
+ */
+static ir_node *gen_sign_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
+ int src_bits)
+{
+ int shift_width = 32 - src_bits;
+ ir_node *lshift_node = new_bd_sparc_Sll_imm(dbgi, block, op, shift_width);
+ ir_node *rshift_node = new_bd_sparc_Sra_imm(dbgi, block, lshift_node, shift_width);
+ return rshift_node;
+}
+
+/**
+ * returns true if it is assured, that the upper bits of a node are "clean"
+ * which means for a 16 or 8 bit value, that the upper bits in the register
+ * are 0 for unsigned and a copy of the last significant bit for signed
+ * numbers.
+ */
+static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode)
+{
+ (void) transformed_node;
+ (void) mode;
+ /* TODO */
+ return false;
+}
+
+/**
+ * Extend a value to 32 bit signed/unsigned depending on its mode.
+ *
+ * @param dbgi debug info
+ * @param block the basic block
+ * @param op the original node
+ * @param orig_mode the original mode of op
+ */
+static ir_node *gen_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
+ ir_mode *orig_mode)
+{
+ int bits = get_mode_size_bits(orig_mode);
+ if (bits == 32)
+ return op;
+
+ if (mode_is_signed(orig_mode)) {
+ return gen_sign_extension(dbgi, block, op, bits);
+ } else {
+ return gen_zero_extension(dbgi, block, op, bits);
+ }
+}
+
/**
* Creates a possible DAG for a constant.
*/
{
ir_node *result;
- // TODO: find a better solution for this
- if (value < -4096 || value > 4096) {
- panic("FIXME: immediate value exceeds max. size of simm13 (13 bits signed)");
+ /* we need to load hi & lo separately */
+ if (value < -4096 || value > 4095) {
+ ir_node *hi = new_bd_sparc_HiImm(dbgi, block, (int) value);
+ result = new_bd_sparc_LoImm(dbgi, block, hi, value);
+ be_dep_on_frame(hi);
+ } else {
+ result = new_bd_sparc_Mov_imm(dbgi, block, (int) value);
+ be_dep_on_frame(result);
}
- result = new_bd_sparc_Mov_imm(dbgi, block, (int) value);
return result;
}
-
/**
* Create a DAG constructing a given Const.
*
{
tarval *tv = get_Const_tarval(irn);
ir_mode *mode = get_tarval_mode(tv);
+ dbg_info *dbgi = get_irn_dbg_info(irn);
long value;
+
if (mode_is_reference(mode)) {
/* SPARC V8 is 32bit, so we can safely convert a reference tarval into Iu */
- assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_Iu));
- tv = tarval_convert_to(tv, mode_Iu);
+ assert(get_mode_size_bits(mode) == get_mode_size_bits(mode_gp));
+ tv = tarval_convert_to(tv, mode_gp);
}
+
value = get_tarval_long(tv);
- return create_const_graph_value(get_irn_dbg_info(irn), block, value);
+ return create_const_graph_value(dbgi, block, value);
}
-
typedef enum {
MATCH_NONE = 0,
- MATCH_COMMUTATIVE = 1 << 0,
+ MATCH_COMMUTATIVE = 1 << 0, /**< commutative operation. */
MATCH_SIZE_NEUTRAL = 1 << 1,
} match_flags_t;
typedef ir_node* (*new_binop_reg_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2);
+typedef ir_node* (*new_binop_fp_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2, ir_mode *mode);
typedef ir_node* (*new_binop_imm_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, int simm13);
/**
- * checks wether a node's value can be encoded as a immediate
- * TODO: pass a result pointer to fetch the encoded immediate
+ * checks if a node's value can be encoded as a immediate
*
*/
static bool is_imm_encodeable(const ir_node *node)
{
long val;
+ //assert(mode_is_float_vector(get_irn_mode(node)));
+
if (!is_Const(node))
return false;
val = get_tarval_long(get_Const_tarval(node));
- return !(val < -4096 || val > 4096);
+ return -4096 <= val && val <= 4095;
}
/**
* helper function for binop operations
*
- * @param new_binop_reg_func register generation function ptr
- * @param new_binop_imm_func immediate generation function ptr
+ * @param new_reg register generation function ptr
+ * @param new_imm immediate generation function ptr
*/
static ir_node *gen_helper_binop(ir_node *node, match_flags_t flags,
new_binop_reg_func new_reg, new_binop_imm_func new_imm)
ir_node *new_op2;
dbg_info *dbgi = get_irn_dbg_info(node);
-/*
- if (flags & MATCH_SIZE_NEUTRAL) {
- op1 = arm_skip_downconv(op1);
- op2 = arm_skip_downconv(op2);
- } else {
- assert(get_mode_size_bits(get_irn_mode(node)) == 32);
- }
-*/
if (is_imm_encodeable(op2)) {
ir_node *new_op1 = be_transform_node(op1);
return new_imm(dbgi, block, new_op1, get_tarval_long(get_Const_tarval(op2)));
return new_reg(dbgi, block, new_op1, new_op2);
}
+/**
+ * helper function for FP binop operations
+ */
+static ir_node *gen_helper_binfpop(ir_node *node, ir_mode *mode,
+ new_binop_fp_func new_func)
+{
+ ir_node *block = be_transform_node(get_nodes_block(node));
+ ir_node *op1 = get_binop_left(node);
+ ir_node *new_op1 = be_transform_node(op1);
+ ir_node *op2 = get_binop_right(node);
+ ir_node *new_op2 = be_transform_node(op2);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+
+ return new_func(dbgi, block, new_op1, new_op2, mode);
+}
+
/**
* Creates an sparc Add.
*
*/
static ir_node *gen_Add(ir_node *node)
{
- ir_mode *mode = get_irn_mode(node);
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_node *op1 = get_Add_left(node);
- ir_node *op2 = get_Add_right(node);
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *new_op1 = be_transform_node(op1);
- ir_node *new_op2 = be_transform_node(op2);
-
- (void) new_op1;
- (void) new_op2;
- (void) block;
- (void) dbgi;
+ ir_mode *mode = get_irn_mode(node);
- if (mode_is_float(mode))
- panic("FP not implemented yet");
+ if (mode_is_float(mode)) {
+ return gen_helper_binfpop(node, mode, new_bd_sparc_fadd);
+ }
return gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Add_reg, new_bd_sparc_Add_imm);
}
-
/**
* Creates an sparc Sub.
*
*/
static ir_node *gen_Sub(ir_node *node)
{
- ir_mode *mode = get_irn_mode(node);
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_node *op1 = get_Add_left(node);
- ir_node *op2 = get_Add_right(node);
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *new_op1 = be_transform_node(op1);
- ir_node *new_op2 = be_transform_node(op2);
-
- (void) new_op1;
- (void) new_op2;
- (void) block;
- (void) dbgi;
+ ir_mode *mode = get_irn_mode(node);
- if (mode_is_float(mode))
- panic("FP not implemented yet");
+ if (mode_is_float(mode)) {
+ return gen_helper_binfpop(node, mode, new_bd_sparc_fsub);
+ }
return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sub_reg, new_bd_sparc_Sub_imm);
}
-
/**
* Transforms a Load.
*
dbg_info *dbgi = get_irn_dbg_info(node);
ir_node *new_load = NULL;
- if (mode_is_float(mode))
- panic("SPARC: no fp implementation yet");
-
- new_load = new_bd_sparc_Load(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
+ if (mode_is_float(mode)) {
+ new_load = new_bd_sparc_Ldf(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
+ } else {
+ new_load = new_bd_sparc_Ld(dbgi, block, new_ptr, new_mem, mode, NULL, 0, 0, false);
+ }
set_irn_pinned(new_load, get_irn_pinned(node));
return new_load;
}
-
-
/**
* Transforms a Store.
*
dbg_info *dbgi = get_irn_dbg_info(node);
ir_node *new_store = NULL;
+ if (mode_is_float(mode)) {
+ new_store = new_bd_sparc_Stf(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
+ } else {
+ new_store = new_bd_sparc_St(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
+ }
+ set_irn_pinned(new_store, get_irn_pinned(node));
+
+ return new_store;
+}
+
+/**
+ * Creates an sparc Mul.
+ * returns the lower 32bits of the 64bit multiply result
+ *
+ * @return the created sparc Mul node
+ */
+static ir_node *gen_Mul(ir_node *node)
+{
+ ir_mode *mode = get_irn_mode(node);
+ if (mode_is_float(mode)) {
+ return gen_helper_binfpop(node, mode, new_bd_sparc_fmul);
+ }
+
+ assert(mode_is_data(mode));
+ return gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL,
+ new_bd_sparc_Mul_reg, new_bd_sparc_Mul_imm);
+}
+
+/**
+ * Creates an sparc Mulh.
+ * Mulh returns the upper 32bits of a mul instruction
+ *
+ * @return the created sparc Mulh node
+ */
+static ir_node *gen_Mulh(ir_node *node)
+{
+ ir_mode *mode = get_irn_mode(node);
+ ir_node *mul;
+ ir_node *proj_res_hi;
+
if (mode_is_float(mode))
- panic("SPARC: no fp implementation yet");
+ panic("FP not supported yet");
- new_store = new_bd_sparc_Store(dbgi, block, new_ptr, new_val, new_mem, mode, NULL, 0, 0, false);
- return new_store;
+ assert(mode_is_data(mode));
+ mul = gen_helper_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, new_bd_sparc_Mulh_reg, new_bd_sparc_Mulh_imm);
+ //arch_irn_add_flags(mul, arch_irn_flags_modify_flags);
+ proj_res_hi = new_r_Proj(mul, mode_gp, pn_sparc_Mulh_low);
+ return proj_res_hi;
+}
+
+/**
+ * Creates an sparc Div.
+ *
+ * @return the created sparc Div node
+ */
+static ir_node *gen_Div(ir_node *node)
+{
+ ir_mode *mode = get_Div_resmode(node);
+ ir_node *res;
+
+ assert(!mode_is_float(mode));
+ if (mode_is_signed(mode)) {
+ res = gen_helper_binop(node, 0, new_bd_sparc_SDiv_reg,
+ new_bd_sparc_SDiv_imm);
+ } else {
+ res = gen_helper_binop(node, 0, new_bd_sparc_UDiv_reg,
+ new_bd_sparc_UDiv_imm);
+ }
+ return res;
}
+static ir_node *gen_Quot(ir_node *node)
+{
+ ir_mode *mode = get_Quot_resmode(node);
+ assert(mode_is_float(mode));
+ return gen_helper_binfpop(node, mode, new_bd_sparc_fdiv);
+}
+
+/**
+ * transform abs node:
+ * mov a, b
+ * sra b, 31, b
+ * xor a, b
+ * sub a, b
+ *
+ * @return
+ */
+static ir_node *gen_Abs(ir_node *node) {
+ ir_node *block = be_transform_node(get_nodes_block(node));
+ ir_mode *mode = get_irn_mode(node);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *op = get_Abs_op(node);
+
+ ir_node *mov, *sra, *xor, *sub, *new_op;
+
+ if (mode_is_float(mode))
+ panic("FP not supported yet");
+ new_op = be_transform_node(op);
-/****** TRANSFORM GENERAL BACKEND NODES ********/
+ mov = new_bd_sparc_Mov_reg(dbgi, block, new_op);
+ sra = new_bd_sparc_Sra_imm(dbgi, block, mov, 31);
+ xor = new_bd_sparc_Xor_reg(dbgi, block, new_op, sra);
+ sub = new_bd_sparc_Sub_reg(dbgi, block, sra, xor);
+
+ return sub;
+}
+
+/**
+ * Transforms a Not node.
+ *
+ * @return the created sparc Not node
+ */
+static ir_node *gen_Not(ir_node *node)
+{
+ ir_node *block = be_transform_node(get_nodes_block(node));
+ ir_node *op = get_Not_op(node);
+ ir_node *new_op = be_transform_node(op);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+
+ return new_bd_sparc_Not(dbgi, block, new_op);
+}
+
+static ir_node *gen_And(ir_node *node)
+{
+ return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_And_reg, new_bd_sparc_And_imm);
+}
+
+static ir_node *gen_Or(ir_node *node)
+{
+ return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Or_reg, new_bd_sparc_Or_imm);
+}
+
+static ir_node *gen_Eor(ir_node *node)
+{
+ return gen_helper_binop(node, MATCH_COMMUTATIVE, new_bd_sparc_Xor_reg, new_bd_sparc_Xor_imm);
+}
+
+static ir_node *gen_Shl(ir_node *node)
+{
+ return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sll_reg, new_bd_sparc_Sll_imm);
+}
+
+static ir_node *gen_Shr(ir_node *node)
+{
+ return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Slr_reg, new_bd_sparc_Slr_imm);
+}
+
+static ir_node *gen_Shrs(ir_node *node)
+{
+ return gen_helper_binop(node, MATCH_SIZE_NEUTRAL, new_bd_sparc_Sra_reg, new_bd_sparc_Sra_imm);
+}
+
+/**
+ * Transforms a Minus node.
+ */
+static ir_node *gen_Minus(ir_node *node)
+{
+ ir_node *block = be_transform_node(get_nodes_block(node));
+ ir_node *op = get_Minus_op(node);
+ ir_node *new_op = be_transform_node(op);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_mode *mode = get_irn_mode(node);
+
+ if (mode_is_float(mode)) {
+ return new_bd_sparc_fneg(dbgi, block, new_op, mode);
+ }
+
+ return new_bd_sparc_Minus(dbgi, block, new_op);
+}
+
+static ir_node *make_addr(dbg_info *dbgi, ir_entity *entity)
+{
+ ir_node *block = get_irg_start_block(current_ir_graph);
+ ir_node *node = new_bd_sparc_SymConst(dbgi, block, entity);
+ be_dep_on_frame(node);
+ return node;
+}
+
+/**
+ * Create an entity for a given (floating point) tarval
+ */
+static ir_entity *create_float_const_entity(tarval *tv)
+{
+ ir_entity *entity = (ir_entity*) pmap_get(env_cg->constants, tv);
+ ir_initializer_t *initializer;
+ ir_mode *mode;
+ ir_type *type;
+ ir_type *glob;
+
+ if (entity != NULL)
+ return entity;
+
+ mode = get_tarval_mode(tv);
+ type = get_type_for_mode(mode);
+ glob = get_glob_type();
+ entity = new_entity(glob, id_unique("C%u"), type);
+ set_entity_visibility(entity, ir_visibility_private);
+ add_entity_linkage(entity, IR_LINKAGE_CONSTANT);
+
+ initializer = create_initializer_tarval(tv);
+ set_entity_initializer(entity, initializer);
+
+ pmap_insert(env_cg->constants, tv, entity);
+ return entity;
+}
/**
* Transforms a Const node.
*
- * @param node the ir Store node
+ * @param node the ir Const node
* @return The transformed sparc node.
*/
static ir_node *gen_Const(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_mode *mode = get_irn_mode(node);
- dbg_info *dbg = get_irn_dbg_info(node);
-
- (void) dbg;
+ ir_node *block = be_transform_node(get_nodes_block(node));
+ ir_mode *mode = get_irn_mode(node);
if (mode_is_float(mode)) {
- panic("FP not supported yet");
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ tarval *tv = get_Const_tarval(node);
+ ir_entity *entity = create_float_const_entity(tv);
+ ir_node *addr = make_addr(dbgi, entity);
+ ir_node *mem = new_NoMem();
+ ir_node *new_op
+ = new_bd_sparc_Ldf(dbgi, block, addr, mem, mode, NULL, 0, 0, false);
+
+ ir_node *proj = new_Proj(new_op, mode, pn_sparc_Ldf_res);
+ return proj;
}
+
return create_const_graph(node, block);
}
ir_node *new_op;
/* SPARC stack grows in reverse direction */
- new_op = new_bd_sparc_AddSP(dbgi, block, new_sp, new_sz, nomem);
+ new_op = new_bd_sparc_SubSP(dbgi, block, new_sp, new_sz, nomem);
return new_op;
}
-
/**
* SubSP
* @param node the ir SubSP node
ir_node *new_op;
/* SPARC stack grows in reverse direction */
- new_op = new_bd_sparc_SubSP(dbgi, block, new_sp, new_sz, nomem);
+ new_op = new_bd_sparc_AddSP(dbgi, block, new_sp, new_sz, nomem);
return new_op;
}
ir_mode *mode = get_irn_mode(result);
if (mode_needs_gp_reg(mode)) {
- set_irn_mode(node, mode_Iu);
+ set_irn_mode(node, mode_gp);
}
return result;
return new_bd_sparc_SwitchJmp(dbgi, block, sub, n_projs, get_Cond_default_proj(node) - translation);
}
+static ir_mode *get_cmp_mode(ir_node *b_value)
+{
+ ir_node *pred;
+ ir_node *op;
+
+ if (!is_Proj(b_value))
+ panic("can't determine cond signednes");
+ pred = get_Proj_pred(b_value);
+ if (!is_Cmp(pred))
+ panic("can't determine cond signednes (no cmp)");
+ op = get_Cmp_left(pred);
+ return get_irn_mode(op);
+}
+
/**
* Transform Cond nodes
*/
{
ir_node *selector = get_Cond_selector(node);
ir_mode *mode = get_irn_mode(selector);
+ ir_mode *cmp_mode;
ir_node *block;
ir_node *flag_node;
+ bool is_unsigned;
+ pn_Cmp pnc;
dbg_info *dbgi;
// switch/case jumps
// regular if/else jumps
assert(is_Proj(selector));
+ assert(is_Cmp(get_Proj_pred(selector)));
+
+ cmp_mode = get_cmp_mode(selector);
- block = be_transform_node(get_nodes_block(node));
- dbgi = get_irn_dbg_info(node);
- flag_node = be_transform_node(get_Proj_pred(selector));
- return new_bd_sparc_Branch(dbgi, block, flag_node, get_Proj_proj(selector));
+ block = be_transform_node(get_nodes_block(node));
+ dbgi = get_irn_dbg_info(node);
+ flag_node = be_transform_node(get_Proj_pred(selector));
+ pnc = get_Proj_proj(selector);
+ is_unsigned = !mode_is_signed(cmp_mode);
+ if (mode_is_float(cmp_mode)) {
+ assert(!is_unsigned);
+ return new_bd_sparc_fbfcc(dbgi, block, flag_node, pnc);
+ } else {
+ return new_bd_sparc_Bicc(dbgi, block, flag_node, pnc, is_unsigned);
+ }
}
/**
ir_node *op2 = get_Cmp_right(node);
ir_mode *cmp_mode = get_irn_mode(op1);
dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *new_op1;
- ir_node *new_op2;
- bool is_unsigned;
-
- if (mode_is_float(cmp_mode)) {
- panic("FloatCmp not implemented");
- }
-
- if (get_mode_size_bits(cmp_mode) != 32) {
- panic("CmpMode != 32bit not supported yet");
- }
-
+ ir_node *new_op1 = be_transform_node(op1);
+ ir_node *new_op2 = be_transform_node(op2);
assert(get_irn_mode(op2) == cmp_mode);
- is_unsigned = !mode_is_signed(cmp_mode);
-
- /* compare with 0 can be done with Tst */
- if (is_Const(op2) && tarval_is_null(get_Const_tarval(op2))) {
- new_op1 = be_transform_node(op1);
- return new_bd_sparc_Tst(dbgi, block, new_op1, false,
- is_unsigned);
- }
- if (is_Const(op1) && tarval_is_null(get_Const_tarval(op1))) {
- new_op2 = be_transform_node(op2);
- return new_bd_sparc_Tst(dbgi, block, new_op2, true,
- is_unsigned);
+ if (mode_is_float(cmp_mode)) {
+ return new_bd_sparc_fcmp(dbgi, block, new_op1, new_op2, cmp_mode);
}
/* integer compare */
- new_op1 = be_transform_node(op1);
- //new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
- new_op2 = be_transform_node(op2);
- //new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
- return new_bd_sparc_Cmp_reg(dbgi, block, new_op1, new_op2, false, is_unsigned);
+ new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
+ new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
+ return new_bd_sparc_Cmp_reg(dbgi, block, new_op1, new_op2);
}
/**
*/
static ir_node *gen_SymConst(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
ir_entity *entity = get_SymConst_entity(node);
dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *new_node;
- new_node = new_bd_sparc_SymConst(dbgi, block, entity);
- be_dep_on_frame(new_node);
- return new_node;
-}
-
-/**
- * Create an And that will zero out upper bits.
- *
- * @param dbgi debug info
- * @param block the basic block
- * @param op the original node
- * @param src_bits number of lower bits that will remain
- */
-static ir_node *gen_zero_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
- int src_bits)
-{
- if (src_bits == 8) {
- return new_bd_sparc_And_imm(dbgi, block, op, 0xFF);
- } else if (src_bits == 16) {
- ir_node *lshift = new_bd_sparc_ShiftLL_imm(dbgi, block, op, 16);
- ir_node *rshift = new_bd_sparc_ShiftLR_imm(dbgi, block, lshift, 16);
- return rshift;
- } else {
- panic("zero extension only supported for 8 and 16 bits");
- }
-}
-
-/**
- * Generate code for a sign extension.
- */
-static ir_node *gen_sign_extension(dbg_info *dbgi, ir_node *block, ir_node *op,
- int src_bits)
-{
- int shift_width = 32 - src_bits;
- ir_node *lshift_node = new_bd_sparc_ShiftLL_imm(dbgi, block, op, shift_width);
- ir_node *rshift_node = new_bd_sparc_ShiftRA_imm(dbgi, block, lshift_node, shift_width);
- return rshift_node;
-}
-
-/**
- * returns true if it is assured, that the upper bits of a node are "clean"
- * which means for a 16 or 8 bit value, that the upper bits in the register
- * are 0 for unsigned and a copy of the last significant bit for signed
- * numbers.
- */
-static bool upper_bits_clean(ir_node *transformed_node, ir_mode *mode)
-{
- (void) transformed_node;
- (void) mode;
- /* TODO */
- return false;
+ return make_addr(dbgi, entity);
}
/**
ir_mode *dst_mode = get_irn_mode(node);
dbg_info *dbg = get_irn_dbg_info(node);
+ int src_bits = get_mode_size_bits(src_mode);
+ int dst_bits = get_mode_size_bits(dst_mode);
+
if (src_mode == dst_mode)
return new_op;
if (mode_is_float(src_mode) || mode_is_float(dst_mode)) {
- panic("FP not implemented");
+ assert((src_bits <= 64 && dst_bits <= 64) && "quad FP not implemented");
+
+ if (mode_is_float(src_mode)) {
+ if (mode_is_float(dst_mode)) {
+ /* float -> float conv */
+ return new_bd_sparc_fftof(dbg, block, new_op, src_mode, dst_mode);
+ } else {
+ /* float -> int conv */
+ if (!mode_is_signed(dst_mode))
+ panic("float to unsigned not implemented yet");
+ return new_bd_sparc_fftoi(dbg, block, new_op, src_mode);
+ }
+ } else {
+ /* int -> float conv */
+ if (!mode_is_signed(src_mode))
+ panic("unsigned to float not implemented yet");
+ return new_bd_sparc_fitof(dbg, block, new_op, dst_mode);
+ }
} else { /* complete in gp registers */
- int src_bits = get_mode_size_bits(src_mode);
- int dst_bits = get_mode_size_bits(dst_mode);
int min_bits;
ir_mode *min_mode;
if (src_bits == dst_bits) {
- /* kill unneccessary conv */
+ /* kill unnecessary conv */
return new_op;
}
}
}
+static ir_node *gen_Unknown(ir_node *node)
+{
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+
+ /* just produce a 0 */
+ ir_mode *mode = get_irn_mode(node);
+ if (mode_is_float(mode)) {
+ panic("FP not implemented");
+ be_dep_on_frame(node);
+ return node;
+ } else if (mode_needs_gp_reg(mode)) {
+ return create_const_graph_value(dbgi, new_block, 0);
+ }
+
+ panic("Unexpected Unknown mode");
+}
+
+/**
+ * Produces the type which sits between the stack args and the locals on the
+ * stack.
+ */
+static ir_type *sparc_get_between_type(void)
+{
+ static ir_type *between_type = NULL;
+
+ if (between_type == NULL) {
+ between_type = new_type_class(new_id_from_str("sparc_between_type"));
+ set_type_size_bytes(between_type, SPARC_MIN_STACKSIZE);
+ }
+
+ return between_type;
+}
+
+static void create_stacklayout(ir_graph *irg)
+{
+ ir_entity *entity = get_irg_entity(irg);
+ ir_type *function_type = get_entity_type(entity);
+ be_stack_layout_t *layout = be_get_irg_stack_layout(irg);
+ ir_type *arg_type;
+ int p;
+ int n_params;
+
+ /* calling conventions must be decided by now */
+ assert(cconv != NULL);
+
+ /* construct argument type */
+ arg_type = new_type_struct(id_mangle_u(get_entity_ident(entity), new_id_from_chars("arg_type", 8)));
+ n_params = get_method_n_params(function_type);
+ for (p = 0; p < n_params; ++p) {
+ reg_or_stackslot_t *param = &cconv->parameters[p];
+ char buf[128];
+ ident *id;
+
+ if (param->type == NULL)
+ continue;
+
+ snprintf(buf, sizeof(buf), "param_%d", p);
+ id = new_id_from_str(buf);
+ param->entity = new_entity(arg_type, id, param->type);
+ set_entity_offset(param->entity, param->offset);
+ }
+
+ memset(layout, 0, sizeof(*layout));
+
+ layout->frame_type = get_irg_frame_type(irg);
+ layout->between_type = sparc_get_between_type();
+ layout->arg_type = arg_type;
+ layout->initial_offset = 0;
+ layout->initial_bias = 0;
+ layout->stack_dir = -1;
+ layout->sp_relative = false;
+
+ assert(N_FRAME_TYPES == 3);
+ layout->order[0] = layout->frame_type;
+ layout->order[1] = layout->between_type;
+ layout->order[2] = layout->arg_type;
+}
+
+/**
+ * transform the start node to the prolog code + initial barrier
+ */
+static ir_node *gen_Start(ir_node *node)
+{
+ ir_graph *irg = get_irn_irg(node);
+ ir_entity *entity = get_irg_entity(irg);
+ ir_type *function_type = get_entity_type(entity);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *mem;
+ ir_node *start;
+ ir_node *sp;
+ ir_node *fp;
+ ir_node *barrier;
+ ir_node *save;
+ int i;
+
+ /* stackpointer is important at function prolog */
+ be_prolog_add_reg(abihelper, sp_reg,
+ arch_register_req_type_produces_sp | arch_register_req_type_ignore);
+ /* function parameters in registers */
+ for (i = 0; i < get_method_n_params(function_type); ++i) {
+ const reg_or_stackslot_t *param = &cconv->parameters[i];
+ if (param->reg0 != NULL)
+ be_prolog_add_reg(abihelper, param->reg0, 0);
+ if (param->reg1 != NULL)
+ be_prolog_add_reg(abihelper, param->reg1, 0);
+ }
+
+ start = be_prolog_create_start(abihelper, dbgi, new_block);
+
+ mem = be_prolog_get_memory(abihelper);
+ sp = be_prolog_get_reg_value(abihelper, sp_reg);
+ save = new_bd_sparc_Save(NULL, block, sp, mem, SPARC_MIN_STACKSIZE);
+ fp = new_r_Proj(save, mode_gp, pn_sparc_Save_frame);
+ sp = new_r_Proj(save, mode_gp, pn_sparc_Save_stack);
+ mem = new_r_Proj(save, mode_M, pn_sparc_Save_mem);
+ arch_set_irn_register(fp, fp_reg);
+ arch_set_irn_register(sp, sp_reg);
+
+ be_prolog_add_reg(abihelper, fp_reg, arch_register_req_type_ignore);
+ be_prolog_set_reg_value(abihelper, fp_reg, fp);
+
+ sp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
+ be_prolog_set_reg_value(abihelper, sp_reg, sp);
+ be_prolog_set_memory(abihelper, mem);
+
+ barrier = be_prolog_create_barrier(abihelper, new_block);
+
+ return barrier;
+}
+
+static ir_node *get_stack_pointer_for(ir_node *node)
+{
+ /* get predecessor in stack_order list */
+ ir_node *stack_pred = be_get_stack_pred(abihelper, node);
+ ir_node *stack_pred_transformed;
+ ir_node *stack;
+
+ if (stack_pred == NULL) {
+ /* first stack user in the current block. We can simply use the
+ * initial sp_proj for it */
+ ir_node *sp_proj = be_prolog_get_reg_value(abihelper, sp_reg);
+ return sp_proj;
+ }
+
+ stack_pred_transformed = be_transform_node(stack_pred);
+ stack = pmap_get(node_to_stack, stack_pred);
+ if (stack == NULL) {
+ return get_stack_pointer_for(stack_pred);
+ }
+
+ return stack;
+}
+
+/**
+ * transform a Return node into epilogue code + return statement
+ */
+static ir_node *gen_Return(ir_node *node)
+{
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *mem = get_Return_mem(node);
+ ir_node *new_mem = be_transform_node(mem);
+ ir_node *sp_proj = get_stack_pointer_for(node);
+ int n_res = get_Return_n_ress(node);
+ ir_node *bereturn;
+ ir_node *incsp;
+ int i;
+
+ be_epilog_begin(abihelper);
+ be_epilog_set_memory(abihelper, new_mem);
+ /* connect stack pointer with initial stack pointer. fix_stack phase
+ will later serialize all stack pointer adjusting nodes */
+ be_epilog_add_reg(abihelper, sp_reg,
+ arch_register_req_type_produces_sp | arch_register_req_type_ignore,
+ sp_proj);
+
+ /* result values */
+ for (i = 0; i < n_res; ++i) {
+ ir_node *res_value = get_Return_res(node, i);
+ ir_node *new_res_value = be_transform_node(res_value);
+ const reg_or_stackslot_t *slot = &cconv->results[i];
+ const arch_register_t *reg = slot->reg0;
+ assert(slot->reg1 == NULL);
+ be_epilog_add_reg(abihelper, reg, 0, new_res_value);
+ }
+
+ /* create the barrier before the epilog code */
+ be_epilog_create_barrier(abihelper, new_block);
+
+ /* epilog code: an incsp */
+ sp_proj = be_epilog_get_reg_value(abihelper, sp_reg);
+ incsp = be_new_IncSP(sp_reg, new_block, sp_proj,
+ BE_STACK_FRAME_SIZE_SHRINK, 0);
+ be_epilog_set_reg_value(abihelper, sp_reg, incsp);
+
+ bereturn = be_epilog_create_return(abihelper, dbgi, new_block);
+
+ return bereturn;
+}
+
+static ir_node *bitcast_int_to_float(dbg_info *dbgi, ir_node *block,
+ ir_node *node)
+{
+ ir_graph *irg = current_ir_graph;
+ ir_node *stack = get_irg_frame(irg);
+ ir_node *nomem = new_NoMem();
+ ir_node *st = new_bd_sparc_St(dbgi, block, stack, node, nomem, mode_gp,
+ NULL, 0, 0, true);
+ ir_node *ldf;
+ set_irn_pinned(st, op_pin_state_floats);
+
+ ldf = new_bd_sparc_Ldf(dbgi, block, stack, st, mode_fp, NULL, 0, 0, true);
+ set_irn_pinned(ldf, op_pin_state_floats);
+
+ return new_Proj(ldf, mode_fp, pn_sparc_Ldf_res);
+}
+
+static ir_node *bitcast_float_to_int(dbg_info *dbgi, ir_node *block,
+ ir_node *node)
+{
+ ir_graph *irg = current_ir_graph;
+ ir_node *stack = get_irg_frame(irg);
+ ir_node *nomem = new_NoMem();
+ ir_node *stf = new_bd_sparc_Stf(dbgi, block, stack, node, nomem, mode_fp,
+ NULL, 0, 0, true);
+ ir_node *ld;
+ set_irn_pinned(stf, op_pin_state_floats);
+
+ ld = new_bd_sparc_Ld(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
+ set_irn_pinned(ld, op_pin_state_floats);
+
+ return new_Proj(ld, mode_fp, pn_sparc_Ld_res);
+}
+
+static ir_node *gen_Call(ir_node *node)
+{
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *callee = get_Call_ptr(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_node *mem = get_Call_mem(node);
+ ir_node *new_mem = be_transform_node(mem);
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_type *type = get_Call_type(node);
+ int n_params = get_Call_n_params(node);
+ int n_param_regs = sizeof(param_regs)/sizeof(param_regs[0]);
+ /* max inputs: memory, callee, register arguments */
+ int max_inputs = 2 + n_param_regs;
+ ir_node **in = ALLOCAN(ir_node*, max_inputs);
+ ir_node **sync_ins = ALLOCAN(ir_node*, max_inputs);
+ struct obstack *obst = be_get_be_obst(irg);
+ const arch_register_req_t **in_req
+ = OALLOCNZ(obst, const arch_register_req_t*, max_inputs);
+ calling_convention_t *cconv
+ = sparc_decide_calling_convention(type, true);
+ int in_arity = 0;
+ int sync_arity = 0;
+ int n_caller_saves
+ = sizeof(caller_saves)/sizeof(caller_saves[0]);
+ ir_entity *entity = NULL;
+ ir_node *new_frame = get_stack_pointer_for(node);
+ ir_node *incsp;
+ int mem_pos;
+ ir_node *res;
+ int p;
+ int i;
+ int o;
+ int out_arity;
+
+ assert(n_params == get_method_n_params(type));
+
+ /* construct arguments */
+
+ /* memory input */
+ in_req[in_arity] = arch_no_register_req;
+ mem_pos = in_arity;
+ ++in_arity;
+
+ /* stack pointer input */
+ /* construct an IncSP -> we have to always be sure that the stack is
+ * aligned even if we don't push arguments on it */
+ incsp = be_new_IncSP(sp_reg, new_block, new_frame,
+ cconv->param_stack_size, 1);
+ in_req[in_arity] = sp_reg->single_req;
+ in[in_arity] = incsp;
+ ++in_arity;
+
+ /* parameters */
+ for (p = 0; p < n_params; ++p) {
+ ir_node *value = get_Call_param(node, p);
+ ir_node *new_value = be_transform_node(value);
+ ir_node *new_value1 = NULL;
+ const reg_or_stackslot_t *param = &cconv->parameters[p];
+ ir_type *param_type = get_method_param_type(type, p);
+ ir_mode *mode = get_type_mode(param_type);
+ ir_node *str;
+
+ if (mode_is_float(mode) && param->reg0 != NULL) {
+ unsigned size_bits = get_mode_size_bits(mode);
+ assert(size_bits == 32);
+ new_value = bitcast_float_to_int(dbgi, new_block, new_value);
+ }
+
+ /* put value into registers */
+ if (param->reg0 != NULL) {
+ in[in_arity] = new_value;
+ in_req[in_arity] = param->reg0->single_req;
+ ++in_arity;
+ if (new_value1 == NULL)
+ continue;
+ }
+ if (param->reg1 != NULL) {
+ assert(new_value1 != NULL);
+ in[in_arity] = new_value1;
+ in_req[in_arity] = param->reg1->single_req;
+ ++in_arity;
+ continue;
+ }
+
+ /* we need a store if we're here */
+ if (new_value1 != NULL) {
+ new_value = new_value1;
+ mode = mode_gp;
+ }
+
+ /* create a parameter frame if necessary */
+ if (mode_is_float(mode)) {
+ str = new_bd_sparc_Stf(dbgi, new_block, incsp, new_value, new_mem,
+ mode, NULL, 0, param->offset, true);
+ } else {
+ str = new_bd_sparc_St(dbgi, new_block, incsp, new_value, new_mem,
+ mode, NULL, 0, param->offset, true);
+ }
+ sync_ins[sync_arity++] = str;
+ }
+ assert(in_arity <= max_inputs);
+
+ /* construct memory input */
+ if (sync_arity == 0) {
+ in[mem_pos] = new_mem;
+ } else if (sync_arity == 1) {
+ in[mem_pos] = sync_ins[0];
+ } else {
+ in[mem_pos] = new_rd_Sync(NULL, new_block, sync_arity, sync_ins);
+ }
+
+ if (is_SymConst(callee)) {
+ entity = get_SymConst_entity(callee);
+ } else {
+ in[in_arity] = be_transform_node(callee);
+ in_req[in_arity] = sparc_reg_classes[CLASS_sparc_gp].class_req;
+ ++in_arity;
+ }
+
+ /* outputs:
+ * - memory
+ * - caller saves
+ */
+ out_arity = 1 + n_caller_saves;
+
+ /* create call node */
+ if (entity != NULL) {
+ res = new_bd_sparc_Call_imm(dbgi, new_block, in_arity, in, out_arity,
+ entity, 0);
+ } else {
+ res = new_bd_sparc_Call_reg(dbgi, new_block, in_arity, in, out_arity);
+ }
+ set_sparc_in_req_all(res, in_req);
+
+ /* create output register reqs */
+ o = 0;
+ arch_set_out_register_req(res, o++, arch_no_register_req);
+ for (i = 0; i < n_caller_saves; ++i) {
+ const arch_register_t *reg = caller_saves[i];
+ arch_set_out_register_req(res, o++, reg->single_req);
+ }
+ assert(o == out_arity);
+
+ /* copy pinned attribute */
+ set_irn_pinned(res, get_irn_pinned(node));
+
+ /* IncSP to destroy the call stackframe */
+ incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
+ /* if we are the last IncSP producer in a block then we have to keep
+ * the stack value.
+ * Note: This here keeps all producers which is more than necessary */
+ add_irn_dep(incsp, res);
+ keep_alive(incsp);
+
+ pmap_insert(node_to_stack, node, incsp);
+
+ sparc_free_calling_convention(cconv);
+ return res;
+}
+
+static ir_node *gen_Sel(ir_node *node)
+{
+ dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_node *ptr = get_Sel_ptr(node);
+ ir_node *new_ptr = be_transform_node(ptr);
+ ir_entity *entity = get_Sel_entity(node);
+
+ /* must be the frame pointer all other sels must have been lowered
+ * already */
+ assert(is_Proj(ptr) && is_Start(get_Proj_pred(ptr)));
+ /* we should not have value types from parameters anymore - they should be
+ lowered */
+ assert(get_entity_owner(entity) !=
+ get_method_value_param_type(get_entity_type(get_irg_entity(get_irn_irg(node)))));
+
+ return new_bd_sparc_FrameAddr(dbgi, new_block, new_ptr, entity);
+}
+
/**
* Transform some Phi nodes
*/
/* we shouldn't have any 64bit stuff around anymore */
assert(get_mode_size_bits(mode) <= 32);
/* all integer operations are on 32bit registers now */
- mode = mode_Iu;
+ mode = mode_gp;
req = sparc_reg_classes[CLASS_sparc_gp].class_req;
} else {
req = arch_no_register_req;
return phi;
}
-
/**
* Transform a Proj from a Load.
*/
ir_node *load = get_Proj_pred(node);
ir_node *new_load = be_transform_node(load);
dbg_info *dbgi = get_irn_dbg_info(node);
- long proj = get_Proj_proj(node);
+ long pn = get_Proj_proj(node);
/* renumber the proj */
switch (get_sparc_irn_opcode(new_load)) {
- case iro_sparc_Load:
- /* handle all gp loads equal: they have the same proj numbers. */
- if (proj == pn_Load_res) {
- return new_rd_Proj(dbgi, new_load, mode_Iu, pn_sparc_Load_res);
- } else if (proj == pn_Load_M) {
- return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Load_M);
- }
+ case iro_sparc_Ld:
+ /* handle all gp loads equal: they have the same proj numbers. */
+ if (pn == pn_Load_res) {
+ return new_rd_Proj(dbgi, new_load, mode_gp, pn_sparc_Ld_res);
+ } else if (pn == pn_Load_M) {
+ return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
+ }
break;
- /*
- case iro_sparc_fpaLoad:
- panic("FP not implemented yet");
+ case iro_sparc_Ldf:
+ if (pn == pn_Load_res) {
+ return new_rd_Proj(dbgi, new_load, mode_fp, pn_sparc_Ldf_res);
+ } else if (pn == pn_Load_M) {
+ return new_rd_Proj(dbgi, new_load, mode_M, pn_sparc_Ld_M);
+ }
+ break;
+ default:
break;
- */
- default:
- panic("Unsupported Proj from Load");
}
+ panic("Unsupported Proj from Load");
+}
+
+static ir_node *gen_Proj_Store(ir_node *node)
+{
+ ir_node *store = get_Proj_pred(node);
+ ir_node *new_store = be_transform_node(store);
+ long pn = get_Proj_proj(node);
- return be_duplicate_node(node);
+ /* renumber the proj */
+ switch (get_sparc_irn_opcode(new_store)) {
+ case iro_sparc_St:
+ if (pn == pn_Store_M) {
+ return new_store;
+ }
+ break;
+ case iro_sparc_Stf:
+ if (pn == pn_Store_M) {
+ return new_store;
+ }
+ break;
+ default:
+ break;
+ }
+ panic("Unsupported Proj from Store");
}
/**
- * Transform the Projs of a be_AddSP.
+ * Transform the Projs from a Cmp.
*/
-static ir_node *gen_Proj_be_AddSP(ir_node *node)
+static ir_node *gen_Proj_Cmp(ir_node *node)
+{
+ (void) node;
+ panic("not implemented");
+}
+
+/**
+ * transform Projs from a Div
+ */
+static ir_node *gen_Proj_Div(ir_node *node)
{
ir_node *pred = get_Proj_pred(node);
ir_node *new_pred = be_transform_node(pred);
- dbg_info *dbgi = get_irn_dbg_info(node);
- long proj = get_Proj_proj(node);
-
- if (proj == pn_be_AddSP_sp) {
- // TODO: check for correct pn_sparc_* flags
- ir_node *res = new_rd_Proj(dbgi, new_pred, mode_Iu,
- pn_sparc_SubSP_stack);
- arch_set_irn_register(res, &sparc_gp_regs[REG_SP]);
- return res;
- } else if (proj == pn_be_AddSP_res) {
- // TODO: check for correct pn_sparc_* flags
- return new_rd_Proj(dbgi, new_pred, mode_Iu, pn_sparc_SubSP_stack);
- } else if (proj == pn_be_AddSP_M) {
- return new_rd_Proj(dbgi, new_pred, mode_M, pn_sparc_SubSP_M);
+ long pn = get_Proj_proj(node);
+
+ assert(is_sparc_SDiv(new_pred) || is_sparc_UDiv(new_pred));
+ assert(pn_sparc_SDiv_res == pn_sparc_UDiv_res);
+ assert(pn_sparc_SDiv_M == pn_sparc_UDiv_M);
+ switch (pn) {
+ case pn_Div_res:
+ return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_res);
+ case pn_Div_M:
+ return new_r_Proj(new_pred, mode_gp, pn_sparc_SDiv_M);
+ default:
+ break;
}
-
- panic("Unsupported Proj from AddSP");
+ panic("Unsupported Proj from Div");
}
-/**
- * Transform the Projs of a be_SubSP.
- */
-static ir_node *gen_Proj_be_SubSP(ir_node *node)
+static ir_node *gen_Proj_Quot(ir_node *node)
{
ir_node *pred = get_Proj_pred(node);
ir_node *new_pred = be_transform_node(pred);
- dbg_info *dbgi = get_irn_dbg_info(node);
- long proj = get_Proj_proj(node);
+ long pn = get_Proj_proj(node);
+
+ assert(is_sparc_fdiv(new_pred));
+ switch (pn) {
+ case pn_Quot_res:
+ return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_res);
+ case pn_Quot_M:
+ return new_r_Proj(new_pred, mode_gp, pn_sparc_fdiv_M);
+ default:
+ break;
+ }
+ panic("Unsupported Proj from Quot");
+}
- if (proj == pn_be_SubSP_sp) {
- ir_node *res = new_rd_Proj(dbgi, new_pred, mode_Iu,
- pn_sparc_AddSP_stack);
- arch_set_irn_register(res, &sparc_gp_regs[REG_SP]);
- return res;
- } else if (proj == pn_be_SubSP_M) {
- return new_rd_Proj(dbgi, new_pred, mode_M, pn_sparc_AddSP_M);
+static ir_node *gen_Proj_Start(ir_node *node)
+{
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_node *barrier = be_transform_node(get_Proj_pred(node));
+ long pn = get_Proj_proj(node);
+
+ switch ((pn_Start) pn) {
+ case pn_Start_X_initial_exec:
+ /* exchange ProjX with a jump */
+ return new_bd_sparc_Ba(NULL, new_block);
+ case pn_Start_M:
+ return new_r_Proj(barrier, mode_M, 0);
+ case pn_Start_T_args:
+ return barrier;
+ case pn_Start_P_frame_base:
+ return be_prolog_get_reg_value(abihelper, fp_reg);
+ case pn_Start_P_tls:
+ return new_Bad();
+ case pn_Start_max:
+ break;
}
+ panic("Unexpected start proj: %ld\n", pn);
+}
- panic("Unsupported Proj from SubSP");
+static ir_node *gen_Proj_Proj_Start(ir_node *node)
+{
+ long pn = get_Proj_proj(node);
+ ir_node *block = get_nodes_block(node);
+ ir_node *new_block = be_transform_node(block);
+ ir_entity *entity = get_irg_entity(current_ir_graph);
+ ir_type *method_type = get_entity_type(entity);
+ ir_type *param_type = get_method_param_type(method_type, pn);
+ const reg_or_stackslot_t *param;
+
+ /* Proj->Proj->Start must be a method argument */
+ assert(get_Proj_proj(get_Proj_pred(node)) == pn_Start_T_args);
+
+ param = &cconv->parameters[pn];
+
+ if (param->reg0 != NULL) {
+ /* argument transmitted in register */
+ ir_mode *mode = get_type_mode(param_type);
+ const arch_register_t *reg = param->reg0;
+ ir_node *value = be_prolog_get_reg_value(abihelper, reg);
+
+ if (mode_is_float(mode)) {
+ /* convert integer value to float */
+ value = bitcast_int_to_float(NULL, new_block, value);
+ }
+ return value;
+ } else {
+ /* argument transmitted on stack */
+ ir_node *fp = be_prolog_get_reg_value(abihelper, fp_reg);
+ ir_node *mem = be_prolog_get_memory(abihelper);
+ ir_mode *mode = get_type_mode(param->type);
+ ir_node *load;
+ ir_node *value;
+
+ if (mode_is_float(mode)) {
+ load = new_bd_sparc_Ldf(NULL, new_block, fp, mem, mode,
+ param->entity, 0, 0, true);
+ value = new_r_Proj(load, mode_fp, pn_sparc_Ldf_res);
+ } else {
+ load = new_bd_sparc_Ld(NULL, new_block, fp, mem, mode,
+ param->entity, 0, 0, true);
+ value = new_r_Proj(load, mode_gp, pn_sparc_Ld_res);
+ }
+ set_irn_pinned(load, op_pin_state_floats);
+
+ return value;
+ }
+}
+
+static ir_node *gen_Proj_Call(ir_node *node)
+{
+ long pn = get_Proj_proj(node);
+ ir_node *call = get_Proj_pred(node);
+ ir_node *new_call = be_transform_node(call);
+
+ switch ((pn_Call) pn) {
+ case pn_Call_M:
+ return new_r_Proj(new_call, mode_M, 0);
+ case pn_Call_X_regular:
+ case pn_Call_X_except:
+ case pn_Call_T_result:
+ case pn_Call_P_value_res_base:
+ case pn_Call_max:
+ break;
+ }
+ panic("Unexpected Call proj %ld\n", pn);
}
/**
- * Transform the Projs from a Cmp.
+ * Finds number of output value of a mode_T node which is constrained to
+ * a single specific register.
*/
-static ir_node *gen_Proj_Cmp(ir_node *node)
+static int find_out_for_reg(ir_node *node, const arch_register_t *reg)
{
- (void) node;
- panic("not implemented");
+ int n_outs = arch_irn_get_n_outs(node);
+ int o;
+
+ for (o = 0; o < n_outs; ++o) {
+ const arch_register_req_t *req = arch_get_out_register_req(node, o);
+ if (req == reg->single_req)
+ return o;
+ }
+ return -1;
}
+static ir_node *gen_Proj_Proj_Call(ir_node *node)
+{
+ long pn = get_Proj_proj(node);
+ ir_node *call = get_Proj_pred(get_Proj_pred(node));
+ ir_node *new_call = be_transform_node(call);
+ ir_type *function_type = get_Call_type(call);
+ calling_convention_t *cconv
+ = sparc_decide_calling_convention(function_type, true);
+ const reg_or_stackslot_t *res = &cconv->results[pn];
+ const arch_register_t *reg = res->reg0;
+ ir_mode *mode;
+ int regn;
+
+ assert(res->reg0 != NULL && res->reg1 == NULL);
+ regn = find_out_for_reg(new_call, reg);
+ if (regn < 0) {
+ panic("Internal error in calling convention for return %+F", node);
+ }
+ mode = res->reg0->reg_class->mode;
+
+ sparc_free_calling_convention(cconv);
+
+ return new_r_Proj(new_call, mode, regn);
+}
/**
* Transform a Proj node.
*/
static ir_node *gen_Proj(ir_node *node)
{
- ir_graph *irg = current_ir_graph;
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *pred = get_Proj_pred(node);
- long proj = get_Proj_proj(node);
+ ir_node *pred = get_Proj_pred(node);
- (void) irg;
- (void) dbgi;
-
- if (is_Store(pred)) {
- if (proj == pn_Store_M) {
- return be_transform_node(pred);
- } else {
- panic("Unsupported Proj from Store");
- }
- } else if (is_Load(pred)) {
+ switch (get_irn_opcode(pred)) {
+ case iro_Store:
+ return gen_Proj_Store(node);
+ case iro_Load:
return gen_Proj_Load(node);
- } else if (be_is_SubSP(pred)) {
- //panic("gen_Proj not implemented for SubSP");
- return gen_Proj_be_SubSP(node);
- } else if (be_is_AddSP(pred)) {
- //panic("gen_Proj not implemented for AddSP");
- return gen_Proj_be_AddSP(node);
- } else if (is_Cmp(pred)) {
- //panic("gen_Proj not implemented for Cmp");
+ case iro_Call:
+ return gen_Proj_Call(node);
+ case iro_Cmp:
return gen_Proj_Cmp(node);
- } else if (is_Start(pred)) {
- /*
- if (proj == pn_Start_X_initial_exec) {
- ir_node *block = get_nodes_block(pred);
- ir_node *jump;
-
- // we exchange the ProjX with a jump
- block = be_transform_node(block);
- jump = new_rd_Jmp(dbgi, block);
- return jump;
- }
-
- if (node == get_irg_anchor(irg, anchor_tls)) {
- return gen_Proj_tls(node);
- }
- */
- } else {
- ir_node *new_pred = be_transform_node(pred);
- ir_mode *mode = get_irn_mode(node);
- if (mode_needs_gp_reg(mode)) {
- ir_node *new_proj = new_r_Proj(new_pred, mode_Iu, get_Proj_proj(node));
- new_proj->node_nr = node->node_nr;
- return new_proj;
+ case iro_Cond:
+ return be_duplicate_node(node);
+ case iro_Div:
+ return gen_Proj_Div(node);
+ case iro_Quot:
+ return gen_Proj_Quot(node);
+ case iro_Start:
+ return gen_Proj_Start(node);
+ case iro_Proj: {
+ ir_node *pred_pred = get_Proj_pred(pred);
+ if (is_Call(pred_pred)) {
+ return gen_Proj_Proj_Call(node);
+ } else if (is_Start(pred_pred)) {
+ return gen_Proj_Proj_Start(node);
}
+ /* FALLTHROUGH */
+ }
+ default:
+ panic("code selection didn't expect Proj after %+F\n", pred);
}
-
- return be_duplicate_node(node);
}
/**
ir_node *new_block = be_transform_node(block);
dbg_info *dbgi = get_irn_dbg_info(node);
- return new_bd_sparc_Jmp(dbgi, new_block);
+ return new_bd_sparc_Ba(dbgi, new_block);
}
/**
- * the BAD transformer.
+ * configure transformation callbacks
*/
-static ir_node *bad_transform(ir_node *irn)
+void sparc_register_transformers(void)
{
- panic("SPARC backend: Not implemented: %+F", irn);
+ be_start_transform_setup();
+
+ be_set_transform_function(op_Abs, gen_Abs);
+ be_set_transform_function(op_Add, gen_Add);
+ be_set_transform_function(op_And, gen_And);
+ be_set_transform_function(op_be_AddSP, gen_be_AddSP);
+ be_set_transform_function(op_be_Call, gen_be_Call);
+ be_set_transform_function(op_be_Copy, gen_be_Copy);
+ be_set_transform_function(op_be_FrameAddr, gen_be_FrameAddr);
+ be_set_transform_function(op_be_SubSP, gen_be_SubSP);
+ be_set_transform_function(op_Call, gen_Call);
+ be_set_transform_function(op_Cmp, gen_Cmp);
+ be_set_transform_function(op_Cond, gen_Cond);
+ be_set_transform_function(op_Const, gen_Const);
+ be_set_transform_function(op_Conv, gen_Conv);
+ be_set_transform_function(op_Div, gen_Div);
+ be_set_transform_function(op_Eor, gen_Eor);
+ be_set_transform_function(op_Jmp, gen_Jmp);
+ be_set_transform_function(op_Load, gen_Load);
+ be_set_transform_function(op_Minus, gen_Minus);
+ be_set_transform_function(op_Mul, gen_Mul);
+ be_set_transform_function(op_Mulh, gen_Mulh);
+ be_set_transform_function(op_Not, gen_Not);
+ be_set_transform_function(op_Or, gen_Or);
+ be_set_transform_function(op_Phi, gen_Phi);
+ be_set_transform_function(op_Proj, gen_Proj);
+ be_set_transform_function(op_Quot, gen_Quot);
+ be_set_transform_function(op_Return, gen_Return);
+ be_set_transform_function(op_Sel, gen_Sel);
+ be_set_transform_function(op_Shl, gen_Shl);
+ be_set_transform_function(op_Shr, gen_Shr);
+ be_set_transform_function(op_Shrs, gen_Shrs);
+ be_set_transform_function(op_Start, gen_Start);
+ be_set_transform_function(op_Store, gen_Store);
+ be_set_transform_function(op_Sub, gen_Sub);
+ be_set_transform_function(op_SymConst, gen_SymConst);
+ be_set_transform_function(op_Unknown, gen_Unknown);
+
+ be_set_transform_function(op_sparc_Save, be_duplicate_node);
}
-/**
- * Set a node emitter. Make it a bit more type safe.
- */
-static void set_transformer(ir_op *op, be_transform_func sparc_transform_func)
+/* hack to avoid unused fp proj at start barrier */
+static void assure_fp_keep(void)
{
- op->ops.generic = (op_func)sparc_transform_func;
-}
+ unsigned n_users = 0;
+ const ir_edge_t *edge;
+ ir_node *fp_proj = be_prolog_get_reg_value(abihelper, fp_reg);
-/**
- * configure transformation callbacks
- */
-void sparc_register_transformers(void)
-{
- clear_irp_opcodes_generic_func();
- set_transformer(op_Add, gen_Add);
- set_transformer(op_Store, gen_Store);
- set_transformer(op_Const, gen_Const);
- set_transformer(op_Load, gen_Load);
- set_transformer(op_Sub, gen_Sub);
-
- set_transformer(op_be_AddSP, gen_be_AddSP);
- set_transformer(op_be_SubSP, gen_be_SubSP);
- set_transformer(op_be_Copy, gen_be_Copy);
- set_transformer(op_be_Call, gen_be_Call);
- set_transformer(op_be_FrameAddr, gen_be_FrameAddr);
-
- set_transformer(op_Cond, gen_Cond);
- set_transformer(op_Cmp, gen_Cmp);
-
- set_transformer(op_SymConst, gen_SymConst);
-
- set_transformer(op_Phi, gen_Phi);
- set_transformer(op_Proj, gen_Proj);
-
- set_transformer(op_Conv, gen_Conv);
- set_transformer(op_Jmp, gen_Jmp);
-
- /* node list */
- /*
- set_transformer(op_Abs, gen_Abs);
- set_transformer(op_Add, gen_Add);
- set_transformer(op_And, gen_And);
- set_transformer(op_Const, gen_Const);
- set_transformer(op_Conv, gen_Conv);
- set_transformer(op_CopyB, gen_CopyB);
- set_transformer(op_Eor, gen_Eor);
- set_transformer(op_Jmp, gen_Jmp);
- set_transformer(op_Load, gen_Load);
- set_transformer(op_Minus, gen_Minus);
- set_transformer(op_Mul, gen_Mul);
- set_transformer(op_Not, gen_Not);
- set_transformer(op_Or, gen_Or);
- set_transformer(op_Quot, gen_Quot);
- set_transformer(op_Rotl, gen_Rotl);
- set_transformer(op_Shl, gen_Shl);
- set_transformer(op_Shr, gen_Shr);
- set_transformer(op_Shrs, gen_Shrs);
- set_transformer(op_Store, gen_Store);
- set_transformer(op_Sub, gen_Sub);
- set_transformer(op_Unknown, gen_Unknown);
- */
-
- set_transformer(op_ASM, bad_transform);
- set_transformer(op_Builtin, bad_transform);
- set_transformer(op_CallBegin, bad_transform);
- set_transformer(op_Cast, bad_transform);
- set_transformer(op_Confirm, bad_transform);
- set_transformer(op_DivMod, bad_transform);
- set_transformer(op_EndExcept, bad_transform);
- set_transformer(op_EndReg, bad_transform);
- set_transformer(op_Filter, bad_transform);
- set_transformer(op_Free, bad_transform);
- set_transformer(op_Id, bad_transform);
- set_transformer(op_InstOf, bad_transform);
- set_transformer(op_Mulh, bad_transform);
- set_transformer(op_Mux, bad_transform);
- set_transformer(op_Raise, bad_transform);
- set_transformer(op_Sel, bad_transform);
- set_transformer(op_Tuple, bad_transform);
-}
-
-
-/**
- * Pre-transform all unknown nodes.
- */
-static void sparc_pretransform_node(void)
-{
- sparc_code_gen_t *cg = env_cg;
- (void) cg;
- //cg->unknown_gp = be_pre_transform_node(cg->unknown_gp);
- //cg->unknown_fpa = be_pre_transform_node(cg->unknown_fpa);
+ foreach_out_edge(fp_proj, edge) {
+ ir_node *succ = get_edge_src_irn(edge);
+ if (is_End(succ) || is_Anchor(succ))
+ continue;
+ ++n_users;
+ }
+
+ if (n_users == 0) {
+ ir_node *block = get_nodes_block(fp_proj);
+ ir_node *in[1] = { fp_proj };
+ be_new_Keep(block, 1, in);
+ }
}
/**
*/
void sparc_transform_graph(sparc_code_gen_t *cg)
{
+ ir_graph *irg = cg->irg;
+ ir_entity *entity = get_irg_entity(irg);
+ ir_type *frame_type;
+
sparc_register_transformers();
env_cg = cg;
- be_transform_graph(cg->birg, sparc_pretransform_node);
+
+ node_to_stack = pmap_create();
+
+ mode_gp = mode_Iu;
+ mode_fp = mode_F;
+
+ abihelper = be_abihelper_prepare(irg);
+ be_collect_stacknodes(abihelper);
+ cconv = sparc_decide_calling_convention(get_entity_type(entity), false);
+ create_stacklayout(irg);
+
+ be_transform_graph(cg->irg, NULL);
+ assure_fp_keep();
+
+ be_abihelper_finish(abihelper);
+ sparc_free_calling_convention(cconv);
+
+ frame_type = get_irg_frame_type(irg);
+ if (get_type_state(frame_type) == layout_undefined)
+ default_layout_compound_type(frame_type);
+
+ pmap_destroy(node_to_stack);
+ node_to_stack = NULL;
+
+ be_add_missing_keeps(irg);
}
void sparc_init_transform(void)
projects / libfirm / blobdiff