/*
- * 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 The codegenerator (transform FIRM into arm FIRM)
- * @author Oliver Richter, Tobias Gneist, Michael Beck
+ * @author Matthias Braun, Oliver Richter, Tobias Gneist, Michael Beck
* @version $Id$
*/
#include "config.h"
#include "irmode_t.h"
#include "irgmod.h"
#include "iredges.h"
-#include "irvrfy.h"
#include "ircons.h"
#include "irprintf.h"
#include "dbginfo.h"
#include "../beirg.h"
#include "../beutil.h"
#include "../betranshlp.h"
-#include "bearch_arm_t.h"
+#include "../beabihelper.h"
+#include "../beabi.h"
+#include "bearch_arm_t.h"
#include "arm_nodes_attr.h"
#include "arm_transform.h"
#include "arm_optimize.h"
#include "arm_new_nodes.h"
#include "arm_map_regs.h"
+#include "arm_cconv.h"
#include "gen_arm_regalloc_if.h"
DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
-/** hold the current code generator during transformation */
-static arm_code_gen_t *env_cg;
+static const arch_register_t *sp_reg = &arm_registers[REG_SP];
+static ir_mode *mode_gp;
+static ir_mode *mode_fp;
+static beabi_helper_env_t *abihelper;
+static calling_convention_t *cconv = NULL;
+static arm_isa_t *isa;
-static inline int mode_needs_gp_reg(ir_mode *mode)
+static pmap *node_to_stack;
+
+static bool mode_needs_gp_reg(ir_mode *mode)
{
return mode_is_int(mode) || mode_is_reference(mode);
}
/**
- * Creates a possible DAG for an constant.
+ * create firm graph for a constant
*/
static ir_node *create_const_graph_value(dbg_info *dbgi, ir_node *block,
unsigned int value)
arm_vals v, vn;
int cnt;
+ /* We only have 8 bit immediates. So we possibly have to combine several
+ * operations to construct the desired value.
+ *
+ * we can either create the value by adding bits to 0 or by removing bits
+ * from an register with all bits set. Try which alternative needs fewer
+ * operations */
arm_gen_vals_from_word(value, &v);
arm_gen_vals_from_word(~value, &vn);
return new_op;
if (mode_is_float(src_mode) || mode_is_float(dst_mode)) {
- env_cg->have_fp_insn = 1;
-
- if (USE_FPA(env_cg->isa)) {
+ if (USE_FPA(isa)) {
if (mode_is_float(src_mode)) {
if (mode_is_float(dst_mode)) {
/* from float to float */
- return new_bd_arm_fpaMvf(dbg, block, new_op, dst_mode);
- }
- else {
+ return new_bd_arm_Mvf(dbg, block, new_op, dst_mode);
+ } else {
/* from float to int */
- return new_bd_arm_fpaFix(dbg, block, new_op, dst_mode);
+ panic("TODO");
}
- }
- else {
+ } else {
/* from int to float */
- return new_bd_arm_fpaFlt(dbg, block, new_op, dst_mode);
+ if (!mode_is_signed(src_mode)) {
+ panic("TODO");
+ } else {
+ return new_bd_arm_FltX(dbg, block, new_op, dst_mode);
+ }
}
- } else if (USE_VFP(env_cg->isa)) {
+ } else if (USE_VFP(isa)) {
panic("VFP not supported yet");
- return NULL;
} else {
panic("Softfloat not supported yet");
- return NULL;
}
} else { /* complete in gp registers */
int src_bits = get_mode_size_bits(src_mode);
ir_mode *min_mode;
if (src_bits == dst_bits) {
- /* kill unneccessary conv */
+ /* kill unnecessary conv */
return new_op;
}
return false;
}
-static int is_downconv(const ir_node *node)
+static bool is_downconv(const ir_node *node)
{
ir_mode *src_mode;
ir_mode *dest_mode;
if (!is_Conv(node))
- return 0;
+ return false;
/* we only want to skip the conv when we're the only user
* (not optimal but for now...)
*/
if (get_irn_n_edges(node) > 1)
- return 0;
+ return false;
src_mode = get_irn_mode(get_Conv_op(node));
dest_mode = get_irn_mode(node);
typedef enum {
MATCH_NONE = 0,
- MATCH_COMMUTATIVE = 1 << 0,
- MATCH_SIZE_NEUTRAL = 1 << 1,
+ MATCH_COMMUTATIVE = 1 << 0, /**< commutative node */
+ MATCH_REVERSE = 1 << 1, /**< support reverse opcode */
+ MATCH_SIZE_NEUTRAL = 1 << 2,
+ MATCH_SKIP_NOT = 1 << 3, /**< skip Not on ONE input */
} 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_imm_func) (dbg_info *dbgi, ir_node *block, ir_node *op1, unsigned char imm8, unsigned char imm_rot);
+/**
+ * possible binop constructors.
+ */
+typedef struct arm_binop_factory_t {
+ /** normal reg op reg operation. */
+ ir_node *(*new_binop_reg)(dbg_info *dbgi, ir_node *block, ir_node *op1, ir_node *op2);
+ /** normal reg op imm operation. */
+ ir_node *(*new_binop_imm)(dbg_info *dbgi, ir_node *block, ir_node *op1, unsigned char imm8, unsigned char imm_rot);
+ /** barrel shifter reg op (reg shift reg operation. */
+ ir_node *(*new_binop_reg_shift_reg)(dbg_info *dbgi, ir_node *block, ir_node *left, ir_node *right, ir_node *shift, arm_shift_modifier_t shift_modifier);
+ /** barrel shifter reg op (reg shift imm operation. */
+ ir_node *(*new_binop_reg_shift_imm)(dbg_info *dbgi, ir_node *block, ir_node *left, ir_node *right, arm_shift_modifier_t shift_modifier, unsigned shift_immediate);
+} arm_binop_factory_t;
static ir_node *gen_int_binop(ir_node *node, match_flags_t flags,
- new_binop_reg_func new_reg, new_binop_imm_func new_imm)
+ const arm_binop_factory_t *factory)
{
ir_node *block = be_transform_node(get_nodes_block(node));
ir_node *op1 = get_binop_left(node);
dbg_info *dbgi = get_irn_dbg_info(node);
arm_immediate_t imm;
+ if (flags & MATCH_SKIP_NOT) {
+ if (is_Not(op1))
+ op1 = get_Not_op(op1);
+ else if (is_Not(op2))
+ op2 = get_Not_op(op2);
+ else
+ panic("cannot execute MATCH_SKIP_NOT");
+ }
if (flags & MATCH_SIZE_NEUTRAL) {
op1 = arm_skip_downconv(op1);
op2 = arm_skip_downconv(op2);
if (try_encode_as_immediate(op2, &imm)) {
ir_node *new_op1 = be_transform_node(op1);
- return new_imm(dbgi, block, new_op1, imm.imm_8, imm.rot);
+ return factory->new_binop_imm(dbgi, block, new_op1, imm.imm_8, imm.rot);
}
new_op2 = be_transform_node(op2);
- if ((flags & MATCH_COMMUTATIVE) && try_encode_as_immediate(op1, &imm)) {
- return new_imm(dbgi, block, new_op2, imm.imm_8, imm.rot);
+ if ((flags & (MATCH_COMMUTATIVE|MATCH_REVERSE)) && try_encode_as_immediate(op1, &imm)) {
+ if (flags & MATCH_REVERSE)
+ return factory[1].new_binop_imm(dbgi, block, new_op2, imm.imm_8, imm.rot);
+ else
+ return factory[0].new_binop_imm(dbgi, block, new_op2, imm.imm_8, imm.rot);
}
new_op1 = be_transform_node(op1);
- return new_reg(dbgi, block, new_op1, new_op2);
+ /* check if we can fold in a Mov */
+ if (is_arm_Mov(new_op2)) {
+ const arm_shifter_operand_t *attr = get_arm_shifter_operand_attr_const(new_op2);
+
+ switch (attr->shift_modifier) {
+ case ARM_SHF_IMM:
+ case ARM_SHF_ASR_IMM:
+ case ARM_SHF_LSL_IMM:
+ case ARM_SHF_LSR_IMM:
+ case ARM_SHF_ROR_IMM:
+ if (factory->new_binop_reg_shift_imm) {
+ ir_node *mov_op = get_irn_n(new_op2, 0);
+ return factory->new_binop_reg_shift_imm(dbgi, block, new_op1, mov_op,
+ attr->shift_modifier, attr->shift_immediate);
+ }
+ break;
+
+ case ARM_SHF_ASR_REG:
+ case ARM_SHF_LSL_REG:
+ case ARM_SHF_LSR_REG:
+ case ARM_SHF_ROR_REG:
+ if (factory->new_binop_reg_shift_reg) {
+ ir_node *mov_op = get_irn_n(new_op2, 0);
+ ir_node *mov_sft = get_irn_n(new_op2, 1);
+ return factory->new_binop_reg_shift_reg(dbgi, block, new_op1, mov_op, mov_sft,
+ attr->shift_modifier);
+ }
+ break;
+ case ARM_SHF_REG:
+ case ARM_SHF_RRX:
+ break;
+ case ARM_SHF_INVALID:
+ panic("invalid shift");
+ }
+ }
+ if ((flags & (MATCH_COMMUTATIVE|MATCH_REVERSE)) && is_arm_Mov(new_op1)) {
+ const arm_shifter_operand_t *attr = get_arm_shifter_operand_attr_const(new_op1);
+ int idx = flags & MATCH_REVERSE ? 1 : 0;
+
+ switch (attr->shift_modifier) {
+ ir_node *mov_op, *mov_sft;
+
+ case ARM_SHF_IMM:
+ case ARM_SHF_ASR_IMM:
+ case ARM_SHF_LSL_IMM:
+ case ARM_SHF_LSR_IMM:
+ case ARM_SHF_ROR_IMM:
+ if (factory[idx].new_binop_reg_shift_imm) {
+ mov_op = get_irn_n(new_op1, 0);
+ return factory[idx].new_binop_reg_shift_imm(dbgi, block, new_op2, mov_op,
+ attr->shift_modifier, attr->shift_immediate);
+ }
+ break;
+
+ case ARM_SHF_ASR_REG:
+ case ARM_SHF_LSL_REG:
+ case ARM_SHF_LSR_REG:
+ case ARM_SHF_ROR_REG:
+ if (factory[idx].new_binop_reg_shift_reg) {
+ mov_op = get_irn_n(new_op1, 0);
+ mov_sft = get_irn_n(new_op1, 1);
+ return factory[idx].new_binop_reg_shift_reg(dbgi, block, new_op2, mov_op, mov_sft,
+ attr->shift_modifier);
+ }
+ break;
+
+ case ARM_SHF_REG:
+ case ARM_SHF_RRX:
+ break;
+ case ARM_SHF_INVALID:
+ panic("invalid shift");
+ }
+ }
+ return factory->new_binop_reg(dbgi, block, new_op1, new_op2);
}
/**
*/
static ir_node *gen_Add(ir_node *node)
{
- ir_mode *mode = get_irn_mode(node);
+ static const arm_binop_factory_t add_factory = {
+ new_bd_arm_Add_reg,
+ new_bd_arm_Add_imm,
+ new_bd_arm_Add_reg_shift_reg,
+ new_bd_arm_Add_reg_shift_imm
+ };
+
+ ir_mode *mode = get_irn_mode(node);
if (mode_is_float(mode)) {
ir_node *block = be_transform_node(get_nodes_block(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);
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa)) {
-#if 0
- if (is_arm_fpaMvf_i(new_op1))
- return new_bd_arm_fpaAdf_i(dbgi, block, new_op2, mode, get_arm_imm_value(new_op1));
- if (is_arm_fpaMvf_i(new_op2))
- return new_bd_arm_fpaAdf_i(dbgi, block, new_op1, mode, get_arm_imm_value(new_op2));
-#endif
- return new_bd_arm_fpaAdf(dbgi, block, new_op1, new_op2, mode);
- } else if (USE_VFP(env_cg->isa)) {
+ if (USE_FPA(isa)) {
+ return new_bd_arm_Adf(dbgi, block, new_op1, new_op2, mode);
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
- return NULL;
- }
- else {
+ } else {
panic("Softfloat not supported yet");
- return NULL;
}
} else {
#if 0
}
#endif
- return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL,
- new_bd_arm_Add_reg, new_bd_arm_Add_imm);
+ return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, &add_factory);
}
}
dbg_info *dbg = get_irn_dbg_info(node);
if (mode_is_float(mode)) {
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa)) {
-#if 0
- if (is_arm_Mov_i(new_op1))
- return new_bd_arm_fpaMuf_i(dbg, block, new_op2, mode, get_arm_imm_value(new_op1));
- if (is_arm_Mov_i(new_op2))
- return new_bd_arm_fpaMuf_i(dbg, block, new_op1, mode, get_arm_imm_value(new_op2));
-#endif
- return new_bd_arm_fpaMuf(dbg, block, new_op1, new_op2, mode);
- }
- else if (USE_VFP(env_cg->isa)) {
+ if (USE_FPA(isa)) {
+ return new_bd_arm_Muf(dbg, block, new_op1, new_op2, mode);
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
- return NULL;
- }
- else {
+ } else {
panic("Softfloat not supported yet");
- return NULL;
}
}
assert(mode_is_data(mode));
return new_bd_arm_Mul(dbg, block, new_op1, new_op2);
}
-/**
- * Creates an ARM floating point Div.
- *
- * @param env The transformation environment
- * @return the created arm fDiv node
- */
static ir_node *gen_Quot(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
assert(mode != mode_E && "IEEE Extended FP not supported");
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa)) {
-#if 0
- if (is_arm_Mov_i(new_op1))
- return new_bd_arm_fpaRdf_i(dbg, block, new_op2, mode, get_arm_imm_value(new_op1));
- if (is_arm_Mov_i(new_op2))
- return new_bd_arm_fpaDvf_i(dbg, block, new_op1, mode, get_arm_imm_value(new_op2));
-#endif
- return new_bd_arm_fpaDvf(dbg, block, new_op1, new_op2, mode);
- } else if (USE_VFP(env_cg->isa)) {
+ if (USE_FPA(isa)) {
+ return new_bd_arm_Dvf(dbg, block, new_op1, new_op2, mode);
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
- }
- else {
+ } else {
panic("Softfloat not supported yet");
- return NULL;
}
}
-/**
- * Creates an ARM And.
- *
- * @return the created arm And node
- */
static ir_node *gen_And(ir_node *node)
{
- return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL,
- new_bd_arm_And_reg, new_bd_arm_And_imm);
+ static const arm_binop_factory_t and_factory = {
+ new_bd_arm_And_reg,
+ new_bd_arm_And_imm,
+ new_bd_arm_And_reg_shift_reg,
+ new_bd_arm_And_reg_shift_imm
+ };
+ static const arm_binop_factory_t bic_factory = {
+ new_bd_arm_Bic_reg,
+ new_bd_arm_Bic_imm,
+ new_bd_arm_Bic_reg_shift_reg,
+ new_bd_arm_Bic_reg_shift_imm
+ };
+
+ /* check for and not */
+ ir_node *left = get_And_left(node);
+ ir_node *right = get_And_right(node);
+
+ if (is_Not(left) || is_Not(right)) {
+ return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL | MATCH_SKIP_NOT,
+ &bic_factory);
+ }
+
+ return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, &and_factory);
}
-/**
- * Creates an ARM Orr.
- *
- * @param env The transformation environment
- * @return the created arm Or node
- */
static ir_node *gen_Or(ir_node *node)
{
- return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL,
- new_bd_arm_Or_reg, new_bd_arm_Or_imm);
+ static const arm_binop_factory_t or_factory = {
+ new_bd_arm_Or_reg,
+ new_bd_arm_Or_imm,
+ new_bd_arm_Or_reg_shift_reg,
+ new_bd_arm_Or_reg_shift_imm
+ };
+
+ return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, &or_factory);
}
-/**
- * Creates an ARM Eor.
- *
- * @return the created arm Eor node
- */
static ir_node *gen_Eor(ir_node *node)
{
- return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL,
- new_bd_arm_Eor_reg, new_bd_arm_Eor_imm);
+ static const arm_binop_factory_t eor_factory = {
+ new_bd_arm_Eor_reg,
+ new_bd_arm_Eor_imm,
+ new_bd_arm_Eor_reg_shift_reg,
+ new_bd_arm_Eor_reg_shift_imm
+ };
+
+ return gen_int_binop(node, MATCH_COMMUTATIVE | MATCH_SIZE_NEUTRAL, &eor_factory);
}
-/**
- * Creates an ARM Sub.
- *
- * @return the created arm Sub node
- */
static ir_node *gen_Sub(ir_node *node)
{
+ static const arm_binop_factory_t sub_rsb_factory[2] = {
+ {
+ new_bd_arm_Sub_reg,
+ new_bd_arm_Sub_imm,
+ new_bd_arm_Sub_reg_shift_reg,
+ new_bd_arm_Sub_reg_shift_imm
+ },
+ {
+ new_bd_arm_Rsb_reg,
+ new_bd_arm_Rsb_imm,
+ new_bd_arm_Rsb_reg_shift_reg,
+ new_bd_arm_Rsb_reg_shift_imm
+ }
+ };
+
ir_node *block = be_transform_node(get_nodes_block(node));
ir_node *op1 = get_Sub_left(node);
ir_node *new_op1 = be_transform_node(op1);
dbg_info *dbgi = get_irn_dbg_info(node);
if (mode_is_float(mode)) {
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa)) {
-#if 0
- if (is_arm_Mov_i(new_op1))
- return new_bd_arm_fpaRsf_i(dbgi, block, new_op2, mode, get_arm_imm_value(new_op1));
- if (is_arm_Mov_i(new_op2))
- return new_bd_arm_fpaSuf_i(dbgi, block, new_op1, mode, get_arm_imm_value(new_op2));
-#endif
- return new_bd_arm_fpaSuf(dbgi, block, new_op1, new_op2, mode);
- } else if (USE_VFP(env_cg->isa)) {
+ if (USE_FPA(isa)) {
+ return new_bd_arm_Suf(dbgi, block, new_op1, new_op2, mode);
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
- return NULL;
} else {
panic("Softfloat not supported yet");
- return NULL;
}
} else {
- return gen_int_binop(node, MATCH_SIZE_NEUTRAL,
- new_bd_arm_Sub_reg, new_bd_arm_Sub_imm);
+ return gen_int_binop(node, MATCH_SIZE_NEUTRAL | MATCH_REVERSE, sub_rsb_factory);
}
}
+/**
+ * Checks if a given value can be used as an immediate for the given
+ * ARM shift mode.
+ */
+static bool can_use_shift_constant(unsigned int val,
+ arm_shift_modifier_t modifier)
+{
+ if (val <= 31)
+ return true;
+ if (val == 32 && modifier != ARM_SHF_LSL_REG && modifier != ARM_SHF_ROR_REG)
+ return true;
+ return false;
+}
+
+/**
+ * generate an ARM shift instruction.
+ *
+ * @param node the node
+ * @param flags matching flags
+ * @param shift_modifier initial encoding of the desired shift operation
+ */
static ir_node *make_shift(ir_node *node, match_flags_t flags,
- arm_shift_modifier shift_modifier)
+ arm_shift_modifier_t shift_modifier)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_node *op1 = get_binop_left(node);
- ir_node *op2 = get_binop_right(node);
- dbg_info *dbgi = get_irn_dbg_info(node);
+ ir_node *block = be_transform_node(get_nodes_block(node));
+ ir_node *op1 = get_binop_left(node);
+ ir_node *op2 = get_binop_right(node);
+ dbg_info *dbgi = get_irn_dbg_info(node);
ir_node *new_op1;
ir_node *new_op2;
op1 = arm_skip_downconv(op1);
op2 = arm_skip_downconv(op2);
}
+
new_op1 = be_transform_node(op1);
+ if (is_Const(op2)) {
+ tarval *tv = get_Const_tarval(op2);
+ unsigned int val = get_tarval_long(tv);
+ assert(tarval_is_long(tv));
+ if (can_use_shift_constant(val, shift_modifier)) {
+ switch (shift_modifier) {
+ case ARM_SHF_LSL_REG: shift_modifier = ARM_SHF_LSL_IMM; break;
+ case ARM_SHF_LSR_REG: shift_modifier = ARM_SHF_LSR_IMM; break;
+ case ARM_SHF_ASR_REG: shift_modifier = ARM_SHF_ASR_IMM; break;
+ case ARM_SHF_ROR_REG: shift_modifier = ARM_SHF_ROR_IMM; break;
+ default: panic("unexpected shift modifier");
+ }
+ return new_bd_arm_Mov_reg_shift_imm(dbgi, block, new_op1,
+ shift_modifier, val);
+ }
+ }
+
new_op2 = be_transform_node(op2);
- return new_bd_arm_Mov_reg_shift_reg(dbgi, block, new_op1, new_op2, shift_modifier);
+ return new_bd_arm_Mov_reg_shift_reg(dbgi, block, new_op1, new_op2,
+ shift_modifier);
}
-/**
- * Creates an ARM Shl.
- *
- * @return the created ARM Shl node
- */
static ir_node *gen_Shl(ir_node *node)
{
return make_shift(node, MATCH_SIZE_NEUTRAL, ARM_SHF_LSL_REG);
}
-/**
- * Creates an ARM Shr.
- *
- * @return the created ARM Shr node
- */
static ir_node *gen_Shr(ir_node *node)
{
return make_shift(node, MATCH_NONE, ARM_SHF_LSR_REG);
}
-/**
- * Creates an ARM Shrs.
- *
- * @return the created ARM Shrs node
- */
static ir_node *gen_Shrs(ir_node *node)
{
return make_shift(node, MATCH_NONE, ARM_SHF_ASR_REG);
}
-/**
- * Creates an ARM Ror.
- *
- * @return the created ARM Ror node
- */
static ir_node *gen_Ror(ir_node *node, ir_node *op1, ir_node *op2)
{
ir_node *block = be_transform_node(get_nodes_block(node));
ARM_SHF_ROR_REG);
}
-/**
- * Creates an ARM Rol.
- *
- * @return the created ARM Rol node
- *
- * Note: there is no Rol on arm, we have to use Ror
- */
static ir_node *gen_Rol(ir_node *node, ir_node *op1, ir_node *op2)
{
ir_node *block = be_transform_node(get_nodes_block(node));
dbg_info *dbgi = get_irn_dbg_info(node);
ir_node *new_op2 = be_transform_node(op2);
+ /* Note: there is no Rol on arm, we have to use Ror */
new_op2 = new_bd_arm_Rsb_imm(dbgi, block, new_op2, 32, 0);
return new_bd_arm_Mov_reg_shift_reg(dbgi, block, new_op1, new_op2,
ARM_SHF_ROR_REG);
}
-/**
- * Creates an ARM ROR from a Firm Rotl.
- *
- * @return the created ARM Ror node
- */
static ir_node *gen_Rotl(ir_node *node)
{
ir_node *rotate = NULL;
return rotate;
}
-/**
- * Transforms a Not node.
- *
- * @return the created ARM Not node
- */
static ir_node *gen_Not(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
ir_node *new_op = be_transform_node(op);
dbg_info *dbgi = get_irn_dbg_info(node);
- /* TODO: we could do alot more here with all the Mvn variations */
-
- return new_bd_arm_Mvn_reg(dbgi, block, new_op);
-}
-
-/**
- * Transforms an Abs node.
- *
- * @param env The transformation environment
- * @return the created ARM Abs node
- */
-static ir_node *gen_Abs(ir_node *node)
-{
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_node *op = get_Abs_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)) {
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa))
- return new_bd_arm_fpaAbs(dbgi, block, new_op, mode);
- else if (USE_VFP(env_cg->isa)) {
- assert(mode != mode_E && "IEEE Extended FP not supported");
- panic("VFP not supported yet");
- }
- else {
- panic("Softfloat not supported yet");
+ /* check if we can fold in a Mov */
+ if (is_arm_Mov(new_op)) {
+ const arm_shifter_operand_t *attr = get_arm_shifter_operand_attr_const(new_op);
+
+ switch (attr->shift_modifier) {
+ ir_node *mov_op, *mov_sft;
+
+ case ARM_SHF_IMM:
+ case ARM_SHF_ASR_IMM:
+ case ARM_SHF_LSL_IMM:
+ case ARM_SHF_LSR_IMM:
+ case ARM_SHF_ROR_IMM:
+ mov_op = get_irn_n(new_op, 0);
+ return new_bd_arm_Mvn_reg_shift_imm(dbgi, block, mov_op,
+ attr->shift_modifier, attr->shift_immediate);
+
+ case ARM_SHF_ASR_REG:
+ case ARM_SHF_LSL_REG:
+ case ARM_SHF_LSR_REG:
+ case ARM_SHF_ROR_REG:
+ mov_op = get_irn_n(new_op, 0);
+ mov_sft = get_irn_n(new_op, 1);
+ return new_bd_arm_Mvn_reg_shift_reg(dbgi, block, mov_op, mov_sft,
+ attr->shift_modifier);
+
+ case ARM_SHF_REG:
+ case ARM_SHF_RRX:
+ break;
+ case ARM_SHF_INVALID:
+ panic("invalid shift");
}
}
- assert(mode_is_data(mode));
- return new_bd_arm_Abs(dbgi, block, new_op);
+
+ return new_bd_arm_Mvn_reg(dbgi, block, new_op);
}
-/**
- * Transforms a Minus node.
- *
- * @return the created ARM Minus node
- */
static ir_node *gen_Minus(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
ir_mode *mode = get_irn_mode(node);
if (mode_is_float(mode)) {
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa))
- return new_bd_arm_fpaMvf(dbgi, block, op, mode);
- else if (USE_VFP(env_cg->isa)) {
+ if (USE_FPA(isa)) {
+ return new_bd_arm_Mvf(dbgi, block, op, mode);
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
- }
- else {
+ } else {
panic("Softfloat not supported yet");
}
}
return new_bd_arm_Rsb_imm(dbgi, block, new_op, 0, 0);
}
-/**
- * Transforms a Load.
- *
- * @return the created ARM Load node
- */
static ir_node *gen_Load(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
ir_node *new_load = NULL;
if (mode_is_float(mode)) {
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa))
- new_load = new_bd_arm_fpaLdf(dbgi, block, new_ptr, new_mem, mode);
- else if (USE_VFP(env_cg->isa)) {
+ if (USE_FPA(isa)) {
+ new_load = new_bd_arm_Ldf(dbgi, block, new_ptr, new_mem, mode,
+ NULL, 0, 0, false);
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
} else {
/* check for special case: the loaded value might not be used */
if (be_get_Proj_for_pn(node, pn_Load_res) == NULL) {
/* add a result proj and a Keep to produce a pseudo use */
- ir_node *proj = new_r_Proj(block, new_load, mode_Iu, pn_arm_Ldr_res);
+ ir_node *proj = new_r_Proj(new_load, mode_Iu, pn_arm_Ldr_res);
be_new_Keep(block, 1, &proj);
}
return new_load;
}
-/**
- * Transforms a Store.
- *
- * @return the created ARM Store node
- */
static ir_node *gen_Store(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
ir_node *new_store = NULL;
if (mode_is_float(mode)) {
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa))
- new_store = new_bd_arm_fpaStf(dbgi, block, new_ptr, new_val,
- new_mem, mode);
- else if (USE_VFP(env_cg->isa)) {
+ if (USE_FPA(isa)) {
+ new_store = new_bd_arm_Stf(dbgi, block, new_ptr, new_val,
+ new_mem, mode, NULL, 0, 0, false);
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
} else {
return new_bd_arm_Jmp(dbgi, new_block);
}
-static ir_node *gen_be_Call(ir_node *node)
-{
- ir_node *res = be_duplicate_node(node);
- arch_irn_add_flags(res, arch_irn_flags_modify_flags);
-
- return res;
-}
-
static ir_node *gen_SwitchJmp(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
bool is_unsigned;
if (mode_is_float(cmp_mode)) {
- /* TODO: revivie this code */
- panic("FloatCmp NIY");
-#if 0
- ir_node *new_op2 = be_transform_node(op2);
- /* floating point compare */
- pn_Cmp pnc = get_Proj_proj(selector);
+ /* TODO: this is broken... */
+ new_op1 = be_transform_node(op1);
+ new_op2 = be_transform_node(op2);
- if (pnc & pn_Cmp_Uo) {
- /* check for unordered, need cmf */
- return new_bd_arm_fpaCmfBra(dbgi, block, new_op1, new_op2, pnc);
- }
- /* Hmm: use need cmfe */
- return new_bd_arm_fpaCmfeBra(dbgi, block, new_op1, new_op2, pnc);
-#endif
+ return new_bd_arm_Cmfe(dbgi, block, new_op1, new_op2, false);
}
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);
- new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
- return new_bd_arm_Tst_reg(dbgi, block, new_op1, new_op1, false,
- is_unsigned);
- }
- if (is_Const(op1) && tarval_is_null(get_Const_tarval(op1))) {
- new_op2 = be_transform_node(op2);
- new_op2 = gen_extension(dbgi, block, new_op2, cmp_mode);
- return new_bd_arm_Tst_reg(dbgi, block, new_op2, new_op2, true,
- is_unsigned);
- }
-
- /* integer compare, TODO: use shifer_op in all its combinations */
+ /* integer compare, TODO: use shifter_op in all its combinations */
new_op1 = be_transform_node(op1);
new_op1 = gen_extension(dbgi, block, new_op1, cmp_mode);
new_op2 = be_transform_node(op2);
is_unsigned);
}
-/**
- * Transforms a Cond.
- *
- * @return the created ARM Cond node
- */
static ir_node *gen_Cond(ir_node *node)
{
ir_node *selector = get_Cond_selector(node);
}
#endif
-/**
- * Transforms a Const node.
- *
- * @return The transformed ARM node.
- */
static ir_node *gen_Const(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
dbg_info *dbg = get_irn_dbg_info(node);
if (mode_is_float(mode)) {
- env_cg->have_fp_insn = 1;
- if (USE_FPA(env_cg->isa)) {
+ if (USE_FPA(isa)) {
tarval *tv = get_Const_tarval(node);
-#if 0
- int imm = is_fpa_immediate(tv);
-
- if (imm != fpa_max) {
- if (imm > 0)
- node = new_bd_arm_fpaMvf_i(dbg, block, mode, imm);
- else
- node = new_bd_arm_fpaMnf_i(dbg, block, mode, -imm);
- } else {
-#endif
- {
- node = new_bd_arm_fpaConst(dbg, block, tv);
- }
+ node = new_bd_arm_fConst(dbg, block, tv);
be_dep_on_frame(node);
return node;
- }
- else if (USE_VFP(env_cg->isa)) {
+ } else if (USE_VFP(isa)) {
assert(mode != mode_E && "IEEE Extended FP not supported");
panic("VFP not supported yet");
- }
- else {
+ } else {
panic("Softfloat not supported yet");
}
}
return create_const_graph(node, block);
}
-/**
- * Transforms a SymConst node.
- *
- * @return The transformed ARM node.
- */
static ir_node *gen_SymConst(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
dbg_info *dbgi = get_irn_dbg_info(node);
ir_node *new_node;
- new_node = new_bd_arm_SymConst(dbgi, block, entity);
+ new_node = new_bd_arm_SymConst(dbgi, block, entity, 0);
be_dep_on_frame(new_node);
return new_node;
}
-/**
- * Transforms a CopyB node.
- *
- * @return The transformed ARM node.
- */
+static ir_node *ints_to_double(dbg_info *dbgi, ir_node *block, ir_node *node0,
+ ir_node *node1)
+{
+ /* the good way to do this would be to use the stm (store multiple)
+ * instructions, since our input is nearly always 2 consecutive 32bit
+ * registers... */
+ ir_graph *irg = current_ir_graph;
+ ir_node *stack = get_irg_frame(irg);
+ ir_node *nomem = new_r_NoMem(irg);
+ ir_node *str0 = new_bd_arm_Str(dbgi, block, stack, node0, nomem, mode_gp,
+ NULL, 0, 0, true);
+ ir_node *str1 = new_bd_arm_Str(dbgi, block, stack, node1, nomem, mode_gp,
+ NULL, 0, 4, true);
+ ir_node *in[2] = { str0, str1 };
+ ir_node *sync = new_r_Sync(block, 2, in);
+ ir_node *ldf;
+ set_irn_pinned(str0, op_pin_state_floats);
+ set_irn_pinned(str1, op_pin_state_floats);
+
+ ldf = new_bd_arm_Ldf(dbgi, block, stack, sync, mode_D, NULL, 0, 0, true);
+ set_irn_pinned(ldf, op_pin_state_floats);
+
+ return new_r_Proj(ldf, mode_fp, pn_arm_Ldf_res);
+}
+
+static ir_node *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_r_NoMem(irg);
+ ir_node *str = new_bd_arm_Str(dbgi, block, stack, node, nomem, mode_gp,
+ NULL, 0, 0, true);
+ ir_node *ldf;
+ set_irn_pinned(str, op_pin_state_floats);
+
+ ldf = new_bd_arm_Ldf(dbgi, block, stack, str, mode_F, NULL, 0, 0, true);
+ set_irn_pinned(ldf, op_pin_state_floats);
+
+ return new_r_Proj(ldf, mode_fp, pn_arm_Ldf_res);
+}
+
+static ir_node *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_r_NoMem(irg);
+ ir_node *stf = new_bd_arm_Stf(dbgi, block, stack, node, nomem, mode_F,
+ NULL, 0, 0, true);
+ ir_node *ldr;
+ set_irn_pinned(stf, op_pin_state_floats);
+
+ ldr = new_bd_arm_Ldr(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
+ set_irn_pinned(ldr, op_pin_state_floats);
+
+ return new_r_Proj(ldr, mode_gp, pn_arm_Ldr_res);
+}
+
+static void double_to_ints(dbg_info *dbgi, ir_node *block, ir_node *node,
+ ir_node **out_value0, ir_node **out_value1)
+{
+ ir_graph *irg = current_ir_graph;
+ ir_node *stack = get_irg_frame(irg);
+ ir_node *nomem = new_r_NoMem(irg);
+ ir_node *stf = new_bd_arm_Stf(dbgi, block, stack, node, nomem, mode_D,
+ NULL, 0, 0, true);
+ ir_node *ldr0, *ldr1;
+ set_irn_pinned(stf, op_pin_state_floats);
+
+ ldr0 = new_bd_arm_Ldr(dbgi, block, stack, stf, mode_gp, NULL, 0, 0, true);
+ set_irn_pinned(ldr0, op_pin_state_floats);
+ ldr1 = new_bd_arm_Ldr(dbgi, block, stack, stf, mode_gp, NULL, 0, 4, true);
+ set_irn_pinned(ldr1, op_pin_state_floats);
+
+ *out_value0 = new_r_Proj(ldr0, mode_gp, pn_arm_Ldr_res);
+ *out_value1 = new_r_Proj(ldr1, mode_gp, pn_arm_Ldr_res);
+}
+
static ir_node *gen_CopyB(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
src_copy = be_new_Copy(&arm_reg_classes[CLASS_arm_gp], block, new_src);
dst_copy = be_new_Copy(&arm_reg_classes[CLASS_arm_gp], block, new_dst);
- return new_bd_arm_CopyB(dbg, block, dst_copy, src_copy,
+ return new_bd_arm_CopyB(dbg, block, dst_copy, src_copy,
new_bd_arm_EmptyReg(dbg, block),
new_bd_arm_EmptyReg(dbg, block),
new_bd_arm_EmptyReg(dbg, block),
}
/**
- * Transforms a FrameAddr into an ARM Add.
+ * Transform builtin clz.
*/
-static ir_node *gen_be_FrameAddr(ir_node *node)
-{
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_entity *ent = be_get_frame_entity(node);
- ir_node *fp = be_get_FrameAddr_frame(node);
- ir_node *new_fp = be_transform_node(fp);
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *new_node;
-
- new_node = new_bd_arm_FrameAddr(dbgi, block, new_fp, ent);
- return new_node;
-}
-
-/**
- * Transform a be_AddSP into an arm_AddSP. Eat up const sizes.
- */
-static ir_node *gen_be_AddSP(ir_node *node)
+static ir_node *gen_clz(ir_node *node)
{
ir_node *block = be_transform_node(get_nodes_block(node));
- ir_node *sz = get_irn_n(node, be_pos_AddSP_size);
- ir_node *new_sz = be_transform_node(sz);
- ir_node *sp = get_irn_n(node, be_pos_AddSP_old_sp);
- ir_node *new_sp = be_transform_node(sp);
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *nomem = new_NoMem();
- ir_node *new_op;
+ dbg_info *dbg = get_irn_dbg_info(node);
+ ir_node *op = get_irn_n(node, 1);
+ ir_node *new_op = be_transform_node(op);
- /* ARM stack grows in reverse direction, make a SubSPandCopy */
- new_op = new_bd_arm_SubSPandCopy(dbgi, block, new_sp, new_sz, nomem);
-
- return new_op;
+ /* TODO armv5 instruction, otherwise create a call */
+ return new_bd_arm_Clz(dbg, block, new_op);
}
/**
- * Transform a be_SubSP into an arm_SubSP. Eat up const sizes.
+ * Transform Builtin node.
*/
-static ir_node *gen_be_SubSP(ir_node *node)
+static ir_node *gen_Builtin(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_node *sz = get_irn_n(node, be_pos_SubSP_size);
- ir_node *new_sz = be_transform_node(sz);
- ir_node *sp = get_irn_n(node, be_pos_SubSP_old_sp);
- ir_node *new_sp = be_transform_node(sp);
- dbg_info *dbgi = get_irn_dbg_info(node);
- ir_node *nomem = new_NoMem();
- ir_node *new_op;
-
- /* ARM stack grows in reverse direction, make an AddSP */
- new_op = new_bd_arm_AddSP(dbgi, block, new_sp, new_sz, nomem);
-
- return new_op;
+ ir_builtin_kind kind = get_Builtin_kind(node);
+
+ switch (kind) {
+ case ir_bk_trap:
+ case ir_bk_debugbreak:
+ case ir_bk_return_address:
+ case ir_bk_frame_address:
+ case ir_bk_prefetch:
+ case ir_bk_ffs:
+ break;
+ case ir_bk_clz:
+ return gen_clz(node);
+ case ir_bk_ctz:
+ case ir_bk_parity:
+ case ir_bk_popcount:
+ case ir_bk_bswap:
+ case ir_bk_outport:
+ case ir_bk_inport:
+ case ir_bk_inner_trampoline:
+ break;
+ }
+ panic("Builtin %s not implemented in ARM", get_builtin_kind_name(kind));
}
/**
- * Transform a be_Copy.
+ * Transform Proj(Builtin) node.
*/
-static ir_node *gen_be_Copy(ir_node *node)
+static ir_node *gen_Proj_Builtin(ir_node *proj)
{
- ir_node *result = be_duplicate_node(node);
- ir_mode *mode = get_irn_mode(result);
-
- if (mode_needs_gp_reg(mode)) {
- set_irn_mode(node, mode_Iu);
+ ir_node *node = get_Proj_pred(proj);
+ ir_node *new_node = be_transform_node(node);
+ ir_builtin_kind kind = get_Builtin_kind(node);
+
+ switch (kind) {
+ case ir_bk_return_address:
+ case ir_bk_frame_address:
+ case ir_bk_ffs:
+ case ir_bk_clz:
+ case ir_bk_ctz:
+ case ir_bk_parity:
+ case ir_bk_popcount:
+ case ir_bk_bswap:
+ assert(get_Proj_proj(proj) == pn_Builtin_1_result);
+ return new_node;
+ case ir_bk_trap:
+ case ir_bk_debugbreak:
+ case ir_bk_prefetch:
+ case ir_bk_outport:
+ assert(get_Proj_proj(proj) == pn_Builtin_M);
+ return new_node;
+ case ir_bk_inport:
+ case ir_bk_inner_trampoline:
+ break;
}
-
- return result;
+ panic("Builtin %s not implemented in ARM", get_builtin_kind_name(kind));
}
-/**
- * Transform a Proj from a Load.
- */
static ir_node *gen_Proj_Load(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
ir_node *load = get_Proj_pred(node);
ir_node *new_load = be_transform_node(load);
dbg_info *dbgi = get_irn_dbg_info(node);
case iro_arm_Ldr:
/* handle all gp loads equal: they have the same proj numbers. */
if (proj == pn_Load_res) {
- return new_rd_Proj(dbgi, block, new_load, mode_Iu, pn_arm_Ldr_res);
+ return new_rd_Proj(dbgi, new_load, mode_Iu, pn_arm_Ldr_res);
} else if (proj == pn_Load_M) {
- return new_rd_Proj(dbgi, block, new_load, mode_M, pn_arm_Ldr_M);
+ return new_rd_Proj(dbgi, new_load, mode_M, pn_arm_Ldr_M);
}
break;
- case iro_arm_fpaLdf:
+ case iro_arm_Ldf:
if (proj == pn_Load_res) {
ir_mode *mode = get_Load_mode(load);
- return new_rd_Proj(dbgi, block, new_load, mode, pn_arm_fpaLdf_res);
+ return new_rd_Proj(dbgi, new_load, mode, pn_arm_Ldf_res);
} else if (proj == pn_Load_M) {
- return new_rd_Proj(dbgi, block, new_load, mode_M, pn_arm_fpaLdf_M);
+ return new_rd_Proj(dbgi, new_load, mode_M, pn_arm_Ldf_M);
}
break;
default:
panic("Unsupported Proj from Load");
}
-/**
- * Transform and renumber the Projs from a CopyB.
- */
static ir_node *gen_Proj_CopyB(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(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);
switch (proj) {
- case pn_CopyB_M_regular:
+ case pn_CopyB_M:
if (is_arm_CopyB(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode_M, pn_arm_CopyB_M);
+ return new_rd_Proj(dbgi, new_pred, mode_M, pn_arm_CopyB_M);
}
break;
default:
panic("Unsupported Proj from CopyB");
}
-/**
- * Transform and renumber the Projs from a Quot.
- */
static ir_node *gen_Proj_Quot(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
ir_node *pred = get_Proj_pred(node);
ir_node *new_pred = be_transform_node(pred);
dbg_info *dbgi = get_irn_dbg_info(node);
switch (proj) {
case pn_Quot_M:
- if (is_arm_fpaDvf(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode_M, pn_arm_fpaDvf_M);
- } else if (is_arm_fpaRdf(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode_M, pn_arm_fpaRdf_M);
- } else if (is_arm_fpaFdv(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode_M, pn_arm_fpaFdv_M);
- } else if (is_arm_fpaFrd(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode_M, pn_arm_fpaFrd_M);
+ if (is_arm_Dvf(new_pred)) {
+ return new_rd_Proj(dbgi, new_pred, mode_M, pn_arm_Dvf_M);
}
break;
case pn_Quot_res:
- if (is_arm_fpaDvf(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode, pn_arm_fpaDvf_res);
- } else if (is_arm_fpaRdf(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode, pn_arm_fpaRdf_res);
- } else if (is_arm_fpaFdv(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode, pn_arm_fpaFdv_res);
- } else if (is_arm_fpaFrd(new_pred)) {
- return new_rd_Proj(dbgi, block, new_pred, mode, pn_arm_fpaFrd_res);
+ if (is_arm_Dvf(new_pred)) {
+ return new_rd_Proj(dbgi, new_pred, mode, pn_arm_Dvf_res);
}
break;
default:
}
/**
- * 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)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
- ir_node *pred = get_Proj_pred(node);
- ir_node *new_pred = be_transform_node(pred);
- dbg_info *dbgi = get_irn_dbg_info(node);
+ (void) node;
+ /* we should only be here in case of a Mux node */
+ panic("Mux NYI");
+}
+
+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 proj = get_Proj_proj(node);
- if (proj == pn_be_AddSP_sp) {
- ir_node *res = new_rd_Proj(dbgi, block, new_pred, mode_Iu,
- pn_arm_SubSPandCopy_stack);
- arch_set_irn_register(res, &arm_gp_regs[REG_SP]);
- return res;
- } else if (proj == pn_be_AddSP_res) {
- return new_rd_Proj(dbgi, block, new_pred, mode_Iu, pn_arm_SubSPandCopy_addr);
- } else if (proj == pn_be_AddSP_M) {
- return new_rd_Proj(dbgi, block, new_pred, mode_M, pn_arm_SubSPandCopy_M);
+ switch ((pn_Start) proj) {
+ case pn_Start_X_initial_exec:
+ /* we exchange the ProjX with a jump */
+ return new_bd_arm_Jmp(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, sp_reg);
+
+ case pn_Start_P_tls:
+ return new_r_Bad(get_irn_irg(node));
+
+ case pn_Start_max:
+ break;
}
- panic("Unsupported Proj from AddSP");
+ panic("unexpected start proj: %ld\n", proj);
}
-/**
- * Transform the Projs of a be_SubSP.
- */
-static ir_node *gen_Proj_be_SubSP(ir_node *node)
+static ir_node *gen_Proj_Proj_Start(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(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);
+ 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);
+ ir_node *value = be_prolog_get_reg_value(abihelper, param->reg0);
+
+ if (mode_is_float(mode)) {
+ ir_node *value1 = NULL;
+
+ if (param->reg1 != NULL) {
+ value1 = be_prolog_get_reg_value(abihelper, param->reg1);
+ } else if (param->entity != NULL) {
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *fp = get_irg_frame(irg);
+ ir_node *mem = be_prolog_get_memory(abihelper);
+ ir_node *ldr = new_bd_arm_Ldr(NULL, new_block, fp, mem,
+ mode_gp, param->entity,
+ 0, 0, true);
+ value1 = new_r_Proj(ldr, mode_gp, pn_arm_Ldr_res);
+ }
+
+ /* convert integer value to float */
+ if (value1 == NULL) {
+ value = int_to_float(NULL, new_block, value);
+ } else {
+ value = ints_to_double(NULL, new_block, value, value1);
+ }
+ }
+ return value;
+ } else {
+ /* argument transmitted on stack */
+ ir_graph *irg = get_irn_irg(node);
+ ir_node *fp = get_irg_frame(irg);
+ 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_arm_Ldf(NULL, new_block, fp, mem, mode,
+ param->entity, 0, 0, true);
+ value = new_r_Proj(load, mode_fp, pn_arm_Ldf_res);
+ } else {
+ load = new_bd_arm_Ldr(NULL, new_block, fp, mem, mode,
+ param->entity, 0, 0, true);
+ value = new_r_Proj(load, mode_gp, pn_arm_Ldr_res);
+ }
+ set_irn_pinned(load, op_pin_state_floats);
- if (proj == pn_be_SubSP_sp) {
- ir_node *res = new_rd_Proj(dbgi, block, new_pred, mode_Iu,
- pn_arm_AddSP_stack);
- arch_set_irn_register(res, &arm_gp_regs[REG_SP]);
- return res;
- } else if (proj == pn_be_SubSP_M) {
- return new_rd_Proj(dbgi, block, new_pred, mode_M, pn_arm_AddSP_M);
+ return value;
}
- panic("Unsupported Proj from SubSP");
}
/**
- * 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("Mux NYI");
-}
+ 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;
+}
-/**
- * Transform the Thread Local Storage Proj.
- */
-static ir_node *gen_Proj_tls(ir_node *node)
+static ir_node *gen_Proj_Proj_Call(ir_node *node)
{
- ir_node *block = be_transform_node(get_nodes_block(node));
- dbg_info *dbgi = NULL;
+ 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 = arm_decide_calling_convention(function_type);
+ const reg_or_stackslot_t *res = &cconv->results[pn];
+ ir_mode *mode;
+ int regn;
+
+ /* TODO 64bit modes */
+ assert(res->reg0 != NULL && res->reg1 == NULL);
+ regn = find_out_for_reg(new_call, res->reg0);
+ if (regn < 0) {
+ panic("Internal error in calling convention for return %+F", node);
+ }
+ mode = res->reg0->reg_class->mode;
+
+ arm_free_calling_convention(cconv);
+
+ return new_r_Proj(new_call, mode, regn);
+}
- return new_bd_arm_LdTls(dbgi, block, mode_Iu);
+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);
}
/**
*/
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);
+ long proj = get_Proj_proj(node);
- if (is_Store(pred)) {
+ switch (get_irn_opcode(pred)) {
+ case iro_Store:
if (proj == pn_Store_M) {
return be_transform_node(pred);
} else {
panic("Unsupported Proj from Store");
}
- } else if (is_Load(pred)) {
+ case iro_Load:
return gen_Proj_Load(node);
- } else if (is_CopyB(pred)) {
+ case iro_Call:
+ return gen_Proj_Call(node);
+ case iro_CopyB:
return gen_Proj_CopyB(node);
- } else if (is_Quot(pred)) {
+ case iro_Quot:
return gen_Proj_Quot(node);
- } else if (be_is_SubSP(pred)) {
- return gen_Proj_be_SubSP(node);
- } else if (be_is_AddSP(pred)) {
- return gen_Proj_be_AddSP(node);
- } else if (is_Cmp(pred)) {
+ 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 *block = be_transform_node(get_nodes_block(node));
- ir_node *new_proj = new_r_Proj(block, new_pred, mode_Iu,
- get_Proj_proj(node));
- new_proj->node_nr = node->node_nr;
- return new_proj;
+ case iro_Start:
+ return gen_Proj_Start(node);
+ case iro_Cond:
+ /* nothing to do */
+ return be_duplicate_node(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 */
+ }
+ case iro_Builtin:
+ return gen_Proj_Builtin(node);
+ default:
+ panic("code selection didn't expect Proj after %+F\n", pred);
}
-
- return be_duplicate_node(node);
}
typedef ir_node *(*create_const_node_func)(dbg_info *db, ir_node *block);
-static inline ir_node *create_const(ir_node **place,
+static inline ir_node *create_const(ir_graph *irg, ir_node **place,
create_const_node_func func,
const arch_register_t* reg)
{
if (*place != NULL)
return *place;
- block = get_irg_start_block(env_cg->irg);
+ block = get_irg_start_block(irg);
res = func(NULL, block);
arch_set_irn_register(res, reg);
*place = res;
ir_mode *mode = get_irn_mode(node);
if (mode_is_float(mode)) {
tarval *tv = get_mode_null(mode);
- ir_node *node = new_bd_arm_fpaConst(dbgi, new_block, tv);
+ ir_node *node = new_bd_arm_fConst(dbgi, new_block, tv);
be_dep_on_frame(node);
return node;
} else if (mode_needs_gp_reg(mode)) {
panic("Unexpected Unknown mode");
}
+/**
+ * Produces the type which sits between the stack args and the locals on the
+ * stack. It will contain the return address and space to store the old base
+ * pointer.
+ * @return The Firm type modeling the ABI between type.
+ */
+static ir_type *arm_get_between_type(void)
+{
+ static ir_type *between_type = NULL;
+
+ if (between_type == NULL) {
+ between_type = new_type_class(new_id_from_str("arm_between_type"));
+ set_type_size_bytes(between_type, 0);
+ }
+
+ 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);
+ }
+
+ /* TODO: what about external functions? we don't know most of the stack
+ * layout for them. And probably don't need all of this... */
+ memset(layout, 0, sizeof(*layout));
+
+ layout->frame_type = get_irg_frame_type(irg);
+ layout->between_type = arm_get_between_type();
+ layout->arg_type = arg_type;
+ layout->param_map = NULL; /* TODO */
+ layout->initial_offset = 0;
+ layout->initial_bias = 0;
+ layout->stack_dir = -1;
+ layout->sp_relative = true;
+
+ 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 *start;
+ ir_node *incsp;
+ ir_node *sp;
+ ir_node *barrier;
+ 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);
+ }
+ /* announce that we need the values of the callee save regs */
+ for (i = 0; i < (int) (sizeof(callee_saves)/sizeof(callee_saves[0])); ++i) {
+ be_prolog_add_reg(abihelper, callee_saves[i], 0);
+ }
+
+ start = be_prolog_create_start(abihelper, dbgi, new_block);
+ sp = be_prolog_get_reg_value(abihelper, sp_reg);
+ incsp = be_new_IncSP(sp_reg, new_block, sp, BE_STACK_FRAME_SIZE_EXPAND, 0);
+ be_prolog_set_reg_value(abihelper, sp_reg, incsp);
+ 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);
+ int n_callee_saves = sizeof(callee_saves)/sizeof(callee_saves[0]);
+ 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);
+ }
+
+ /* connect callee saves with their values at the function begin */
+ for (i = 0; i < n_callee_saves; ++i) {
+ const arch_register_t *reg = callee_saves[i];
+ ir_node *value = be_prolog_get_reg_value(abihelper, reg);
+ be_epilog_add_reg(abihelper, reg, 0, 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 *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);
+ calling_convention_t *cconv = arm_decide_calling_convention(type);
+ 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);
+ 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 *incsp = NULL;
+ int mem_pos;
+ ir_node *res;
+ int p;
+ 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;
+ /* 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);
+ if (size_bits == 64) {
+ double_to_ints(dbgi, new_block, new_value, &new_value,
+ &new_value1);
+ } else {
+ assert(size_bits == 32);
+ new_value = 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 (incsp == NULL) {
+ ir_node *new_frame = get_stack_pointer_for(node);
+ incsp = be_new_IncSP(sp_reg, new_block, new_frame,
+ cconv->param_stack_size, 1);
+ }
+ if (mode_is_float(mode)) {
+ str = new_bd_arm_Stf(dbgi, new_block, incsp, new_value, new_mem,
+ mode, NULL, 0, param->offset, true);
+ } else {
+ str = new_bd_arm_Str(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);
+ }
+
+ /* TODO: use a generic symconst matcher here */
+ if (is_SymConst(callee)) {
+ entity = get_SymConst_entity(callee);
+ } else {
+ /* TODO: finish load matcher here */
+#if 0
+ /* callee */
+ if (is_Proj(callee) && is_Load(get_Proj_pred(callee))) {
+ ir_node *load = get_Proj_pred(callee);
+ ir_node *ptr = get_Load_ptr(load);
+ ir_node *new_ptr = be_transform_node(ptr);
+ ir_node *mem = get_Load_mem(load);
+ ir_node *new_mem = be_transform_node(mem);
+ ir_mode *mode = get_Load_mode(node);
+
+ } else {
+#endif
+ in[in_arity] = be_transform_node(callee);
+ in_req[in_arity] = arm_reg_classes[CLASS_arm_gp].class_req;
+ ++in_arity;
+ //}
+ }
+
+ /* outputs:
+ * - memory
+ * - caller saves
+ */
+ out_arity = 1 + n_caller_saves;
+
+ if (entity != NULL) {
+ /* TODO: use a generic symconst matcher here
+ * so we can also handle entity+offset, etc. */
+ res = new_bd_arm_Bl(dbgi, new_block, in_arity, in, out_arity,entity, 0);
+ } else {
+ /* TODO:
+ * - use a proper shifter_operand matcher
+ * - we could also use LinkLdrPC
+ */
+ res = new_bd_arm_LinkMovPC(dbgi, new_block, in_arity, in, out_arity,
+ ARM_SHF_REG, 0, 0);
+ }
+
+ if (incsp != NULL) {
+ /* 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);
+ }
+
+ arch_set_in_register_reqs(res, in_req);
+
+ /* create output register reqs */
+ arch_set_out_register_req(res, 0, arch_no_register_req);
+ for (o = 0; o < n_caller_saves; ++o) {
+ const arch_register_t *reg = caller_saves[o];
+ arch_set_out_register_req(res, o+1, reg->single_req);
+ }
+
+ /* copy pinned attribute */
+ set_irn_pinned(res, get_irn_pinned(node));
+
+ arm_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_arm_FrameAddr(dbgi, new_block, new_ptr, entity, 0);
+}
+
/**
* Change some phi modes
*/
* and fix this later */
phi = new_ir_node(dbgi, irg, block, op_Phi, mode, get_irn_arity(node),
get_irn_in(node) + 1);
- copy_node_attr(node, phi);
+ copy_node_attr(irg, node, phi);
be_duplicate_deps(node, phi);
arch_set_out_register_req(phi, 0, req);
return phi;
}
-/**
- * the BAD transformer.
- */
-static ir_node *bad_transform(ir_node *irn)
-{
- panic("ARM backend: Not implemented: %+F", irn);
-}
-
-/**
- * Set a node emitter. Make it a bit more type safe.
- */
-static void set_transformer(ir_op *op, be_transform_func arm_transform_func)
-{
- op->ops.generic = (op_func)arm_transform_func;
-}
/**
* Enters all transform functions into the generic pointer
*/
static void arm_register_transformers(void)
{
- /* first clear the generic function pointer for all ops */
- clear_irp_opcodes_generic_func();
-
- set_transformer(op_Abs, gen_Abs);
- set_transformer(op_Add, gen_Add);
- set_transformer(op_And, gen_And);
- set_transformer(op_be_AddSP, gen_be_AddSP);
- set_transformer(op_be_Call, gen_be_Call);
- set_transformer(op_be_Copy, gen_be_Copy);
- set_transformer(op_be_FrameAddr, gen_be_FrameAddr);
- set_transformer(op_be_SubSP, gen_be_SubSP);
- set_transformer(op_Cmp, gen_Cmp);
- set_transformer(op_Cond, gen_Cond);
- 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_Phi, gen_Phi);
- set_transformer(op_Proj, gen_Proj);
- 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_SymConst, gen_SymConst);
- 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 arm_pretransform_node(void)
-{
- arm_code_gen_t *cg = env_cg;
-
- cg->unknown_gp = be_pre_transform_node(cg->unknown_gp);
- cg->unknown_fpa = be_pre_transform_node(cg->unknown_fpa);
+ be_start_transform_setup();
+
+ be_set_transform_function(op_Add, gen_Add);
+ be_set_transform_function(op_And, gen_And);
+ 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_CopyB, gen_CopyB);
+ 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_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_Rotl, gen_Rotl);
+ 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_Builtin, gen_Builtin);
}
/**
/**
* Transform a Firm graph into an ARM graph.
*/
-void arm_transform_graph(arm_code_gen_t *cg)
+void arm_transform_graph(ir_graph *irg)
{
static int imm_initialized = 0;
+ ir_entity *entity = get_irg_entity(irg);
+ const arch_env_t *arch_env = be_get_irg_arch_env(irg);
+ ir_type *frame_type;
+
+ mode_gp = mode_Iu;
+ mode_fp = mode_E;
if (! imm_initialized) {
arm_init_fpa_immediate();
imm_initialized = 1;
}
arm_register_transformers();
- env_cg = cg;
- be_transform_graph(cg->birg, arm_pretransform_node);
+
+ isa = (arm_isa_t*) arch_env;
+
+ node_to_stack = pmap_create();
+
+ assert(abihelper == NULL);
+ abihelper = be_abihelper_prepare(irg);
+ be_collect_stacknodes(abihelper);
+ assert(cconv == NULL);
+ cconv = arm_decide_calling_convention(get_entity_type(entity));
+ create_stacklayout(irg);
+
+ be_transform_graph(irg, NULL);
+
+ be_abihelper_finish(abihelper);
+ abihelper = NULL;
+
+ arm_free_calling_convention(cconv);
+ cconv = NULL;
+
+ 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 arm_init_transform(void)
projects / libfirm / blobdiff