/*
- * Copyright (C) 1995-2007 University of Karlsruhe. All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
*
* This file is part of libFirm.
*
* @file
* @brief Type definitions for ia32 node attributes.
* @author Christian Wuerdig
- * @version $Id$
*/
#ifndef FIRM_BE_IA32_IA32_NODES_ATTR_H
#define FIRM_BE_IA32_IA32_NODES_ATTR_H
-#include "firm_config.h"
-
#include "firm_types.h"
-#include "../bearch_t.h"
-#include "../bemachine.h"
+#include "bearch.h"
#include "irnode_t.h"
-typedef enum { flavour_Div = 1, flavour_Mod, flavour_DivMod } ia32_op_flavour_t;
-typedef enum { pn_EAX, pn_EDX } pn_ia32_Register;
+/** ia32 condition codes (the numbers correspond to the real encoding order) */
+typedef enum ia32_condition_code_t {
+ ia32_cc_negated = 0x01, /**< negates condition */
+
+ ia32_cc_overflow = 0x00, /**< OF=1 */
+ ia32_cc_below = 0x02, /**< CF=1 */
+ ia32_cc_equal = 0x04, /**< ZF=1 */
+ ia32_cc_below_equal = 0x06, /**< ZF=1 or CF=1 */
+ ia32_cc_sign = 0x08, /**< SF=1 */
+ ia32_cc_parity = 0x0A, /**< PF=1 */
+ ia32_cc_less = 0x0C, /**< SF!=OF */
+ ia32_cc_less_equal = 0x0E, /**< ZF=1 or SF!=OF */
+ ia32_cc_not_overflow = ia32_cc_negated|ia32_cc_overflow, /**< OF=0 */
+ ia32_cc_above_equal = ia32_cc_negated|ia32_cc_below, /**< CF=0 */
+ ia32_cc_not_equal = ia32_cc_negated|ia32_cc_equal, /**< ZF=0 */
+ ia32_cc_above = ia32_cc_negated|ia32_cc_below_equal, /**< ZF=0 and CF=0 */
+ ia32_cc_not_sign = ia32_cc_negated|ia32_cc_sign, /**< SF=0 */
+ ia32_cc_not_parity = ia32_cc_negated|ia32_cc_parity, /**< PF=0 */
+ ia32_cc_greater_equal = ia32_cc_negated|ia32_cc_less, /**< SF=OF */
+ ia32_cc_greater = ia32_cc_negated|ia32_cc_less_equal, /**< ZF=0 and SF=OF */
+
+ /* the following codes are (unfortunately) NOT real hardware codes but
+ * simplify our backend as you need these combinations for some
+ * floatingpoint compares (the emitter will split them into multiple
+ * instructions) */
+ ia32_cc_float_parity_cases = 0x20,
+ /* we need even more cases as inversing the cc is different for float
+ * comparisons (though for the following we need no special
+ * parity+x combinations) */
+ ia32_cc_additional_float_cases = 0x10,
+
+ /* make sure that the lower 4 bit correspond to the real encoding
+ * (of the comparison not involving the parity special) */
+ ia32_cc_float_equal = 0x34, /**< PF=0 and ZF=1 */
+ ia32_cc_float_below = 0x32, /**< PF=0 and CF=1 */
+ ia32_cc_float_below_equal = 0x36, /**< PF=0 and (ZF=1 or CF=1) */
+ ia32_cc_float_not_equal = ia32_cc_negated|ia32_cc_float_equal, /**< PF=1 or ZF=0 */
+ ia32_cc_float_unordered_above_equal
+ = ia32_cc_negated|ia32_cc_float_below, /**< PF=1 or CF=0 */
+ ia32_cc_float_unordered_above
+ = ia32_cc_negated|ia32_cc_float_below_equal, /**< PF=1 or (ZF=0 and CF=0) */
+
+ ia32_cc_float_unordered_below_equal = 0x16, /**< ZF=1 or CF=1 */
+ ia32_cc_float_unordered_below = 0x12, /**< CF=1 */
+ ia32_cc_float_above =
+ ia32_cc_negated|ia32_cc_float_unordered_below_equal, /**< ZF=0 and CF=0 */
+ ia32_cc_float_above_equal
+ = ia32_cc_negated|ia32_cc_float_unordered_below, /**< CF=0 */
+} ia32_condition_code_t;
+ENUM_BITSET(ia32_condition_code_t)
+
+static inline ia32_condition_code_t ia32_negate_condition_code(
+ ia32_condition_code_t code)
+{
+ return code ^ ia32_cc_negated;
+}
+
+static inline ia32_condition_code_t ia32_invert_condition_code(
+ ia32_condition_code_t code)
+{
+ /* doesn't appear to have any systematic, so use a table */
+ switch (code) {
+ case ia32_cc_below: return ia32_cc_above;
+ case ia32_cc_below_equal: return ia32_cc_above_equal;
+ case ia32_cc_above: return ia32_cc_below;
+ case ia32_cc_above_equal: return ia32_cc_below_equal;
+ case ia32_cc_less: return ia32_cc_greater;
+ case ia32_cc_less_equal: return ia32_cc_greater_equal;
+ case ia32_cc_greater: return ia32_cc_less;
+ case ia32_cc_greater_equal: return ia32_cc_less_equal;
+ case ia32_cc_float_below: return ia32_cc_float_above;
+ case ia32_cc_float_below_equal: return ia32_cc_float_above_equal;
+ case ia32_cc_float_above: return ia32_cc_float_below;
+ case ia32_cc_float_above_equal: return ia32_cc_float_below_equal;
+ case ia32_cc_float_unordered_below: return ia32_cc_float_unordered_above;
+ case ia32_cc_float_unordered_below_equal: return ia32_cc_float_unordered_above_equal;
+ case ia32_cc_float_unordered_above: return ia32_cc_float_unordered_below;
+ case ia32_cc_float_unordered_above_equal: return ia32_cc_float_unordered_below_equal;
+ default: return code;
+ }
+}
typedef enum {
ia32_Normal,
ia32_AddrModeS
} ia32_op_type_t;
-typedef enum {
- ia32_am_None = 0, /**<< no addrmode support */
- ia32_am_Dest = 1,
- ia32_am_Source = 2, /**<< addrmode for source only */
- ia32_am_Full = 3
+typedef enum {
+ ia32_am_none = 0,
+ ia32_am_unary = 1,
+ ia32_am_binary = 2
} ia32_am_type_t;
typedef enum {
- ia32_am_arity_none = 0,
- ia32_am_unary = 1,
- ia32_am_binary = 2,
- ia32_am_ternary = 3,
-} ia32_am_arity_t;
-
-/**
- * Different Address Mode properties:
- * O - Offset is set
- * B - Base is set
- * I - Index is set
- * S - Scale is set
- */
-enum {
- ia32_O = (1 << 0), /**< O - Offset is set */
- ia32_B = (1 << 1), /**< B - Base is set */
- ia32_I = (1 << 2), /**< I - Index is set */
- ia32_S = (1 << 3) /**< S - Scale is set */
-};
-
-enum {
- ia32_pn_Cmp_Unsigned = 0x100 /**< set this flag in a pnc to indicate an unsigned compare operation */
+ match_commutative = 1 << 0, /**< inputs are commutative */
+ match_am_and_immediates = 1 << 1, /**< node supports AM and immediate at
+ the same time */
+ match_am = 1 << 2, /**< node supports (32bit) source AM */
+ match_8bit_am = 1 << 3, /**< node supports 8bit source AM */
+ match_16bit_am = 1 << 4, /**< node supports 16bit source AM */
+ match_immediate = 1 << 5, /**< node supports immediates */
+ /** for 8/16 bit modes, mode_neutral operations can be emulated by their
+ * 32bit equivalents, they just don't care about the upper bits (they can be
+ * arbitrary before the insn and are unknown after the instruction). */
+ match_mode_neutral = 1 << 6,
+ /** for 8/16 bit modes, zero_ext operations can be emulated by their
+ * 32bit equivalents, however the upper bits must be zero extended. */
+ match_zero_ext = 1 << 7,
+ /** for 8/16 bit modes, upconv operations can be emulated by their
+ * 32bit equivalents, however the upper bits have to sign/zero extended
+ * based on the operations mode. */
+ match_upconv = 1 << 8,
+ match_try_am = 1 << 9, /**< only try to produce AM node, don't
+ do anything if AM isn't possible */
+ match_two_users = 1 << 10,/**< the instruction uses a load two times ... */
+} match_flags_t;
+ENUM_BITSET(match_flags_t)
+
+typedef struct ia32_op_attr_t ia32_op_attr_t;
+struct ia32_op_attr_t {
+ //match_flags_t flags;
+ unsigned latency;
};
#ifndef NDEBUG
typedef enum {
- IA32_ATTR_INVALID = 0,
- IA32_ATTR_ia32_attr_t = 1 << 0,
- IA32_ATTR_ia32_x87_attr_t = 1 << 1,
- IA32_ATTR_ia32_asm_attr_t = 1 << 2,
- IA32_ATTR_ia32_immediate_attr_t = 1 << 3,
+ IA32_ATTR_INVALID = 0,
+ IA32_ATTR_ia32_attr_t = 1 << 0,
+ IA32_ATTR_ia32_x87_attr_t = 1 << 1,
+ IA32_ATTR_ia32_asm_attr_t = 1 << 2,
+ IA32_ATTR_ia32_immediate_attr_t = 1 << 3,
+ IA32_ATTR_ia32_condcode_attr_t = 1 << 4,
+ IA32_ATTR_ia32_copyb_attr_t = 1 << 5,
+ IA32_ATTR_ia32_call_attr_t = 1 << 6,
+ IA32_ATTR_ia32_climbframe_attr_t = 1 << 7,
+ IA32_ATTR_ia32_switch_attr_t = 1 << 8,
} ia32_attr_type_t;
#endif
+/**
+ * The generic ia32 attributes. Every node has them.
+ */
typedef struct ia32_attr_t ia32_attr_t;
struct ia32_attr_t {
except_attr exc; /**< the exception attribute. MUST be the first one. */
struct ia32_attr_data_bitfield {
- unsigned flags:5; /**< Indicating if spillable, rematerializeable, stack modifying and/or ignore. */
- unsigned tp:3; /**< ia32 node type. */
- unsigned am_support:2; /**< Indicates the address mode type supported by this node. */
- unsigned am_arity : 2;
- unsigned am_scale:2; /**< The address mode scale for index register. */
- unsigned am_sc_sign:1; /**< The sign bit of the address mode symconst. */
-
- unsigned use_frame:1; /**< Indicates whether the operation uses the frame pointer or not. */
- unsigned except_label:1; /**< Set if this node needs a label because of possible exception. */
+ unsigned tp:3; /**< ia32 node type. */
+ unsigned am_arity:2; /**< Indicates the address mode type supported by this node. */
+ unsigned am_scale:2; /**< The address mode scale for index register. */
+ unsigned am_sc_sign:1; /**< The sign bit of the address mode symconst. */
- ia32_op_flavour_t op_flav:2;/**< Flavour of an op (flavour_Div/Mod/DivMod). */
+ unsigned am_sc_no_pic_adjust : 1;/**< AM symconst can be relative to EIP */
+ unsigned am_tls_segment:1; /**< addresses are relative to TLS */
+ unsigned use_frame:1; /**< Indicates whether the operation uses the frame pointer or not. */
+ unsigned has_except_label:1; /**< Set if this node needs a label because of possible exception. */
- unsigned is_commutative:1; /**< Indicates whether op is commutative or not. */
+ unsigned is_commutative:1; /**< Indicates whether op is commutative or not. */
- unsigned got_lea:1; /**< Indicates whether or not this node already consumed a LEA. */
-
- unsigned need_stackent:1; /**< Set to 1 if node need space on stack. */
+ unsigned need_stackent:1; /**< Set to 1 if node need space on stack. */
unsigned need_64bit_stackent:1; /**< needs a 64bit stack entity (see double->unsigned int conv) */
unsigned need_32bit_stackent:1; /**< needs a 32bit stack entity */
+ unsigned ins_permuted : 1; /**< inputs of node have been permuted
+ (for commutative nodes) */
+ unsigned is_reload : 1; /**< node performs a reload */
+ unsigned is_spill : 1;
+ unsigned is_remat : 1;
} data;
- int *out_flags; /**< flags for each produced value */
-
int am_offs; /**< offsets for AddrMode */
ir_entity *am_sc; /**< SymConst for AddrMode */
ir_entity *frame_ent; /**< the frame entity attached to this node */
- long pn_code; /**< projnum "types" (e.g. indicate compare operators and argument numbers for switches) */
-
- unsigned latency; /**< the latency of the instruction in clock cycles */
+ ir_label_t exc_label; /**< the exception label iff this instruction can throw an exception */
#ifndef NDEBUG
const char *orig_node; /**< holds the name of the original ir node */
unsigned attr_type; /**< bitfield indicating the attribute type */
#endif
+};
- const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */
+/**
+ * The attributes for a Call node.
+ */
+typedef struct ia32_call_attr_t ia32_call_attr_t;
+struct ia32_call_attr_t {
+ ia32_attr_t attr; /**< generic attribute */
+ unsigned pop; /**< number of bytes that get popped by the callee */
+ ir_type *call_tp; /**< The call type, copied from the original Call node. */
+};
- const arch_register_req_t **in_req; /**< register requirements for arguments */
- const arch_register_req_t **out_req; /**< register requirements for results */
+/**
+ * The attributes for nodes with condition code.
+ */
+typedef struct ia32_condcode_attr_t ia32_condcode_attr_t;
+struct ia32_condcode_attr_t {
+ ia32_attr_t attr; /**< generic attribute */
+ ia32_condition_code_t condition_code; /**< condition code*/
+};
- const arch_register_t **slots; /**< register slots for assigned registers */
+/**
+ * The attributes for Switches
+ */
+typedef struct ia32_switch_attr_t ia32_switch_attr_t;
+struct ia32_switch_attr_t {
+ ia32_attr_t attr; /**< generic attribute */
+ const ir_switch_table *table;
+ ir_entity *jump_table;
+};
+
+/**
+ * The attributes for CopyB code.
+ */
+typedef struct ia32_copyb_attr_t ia32_copyb_attr_t;
+struct ia32_copyb_attr_t {
+ ia32_attr_t attr; /**< generic attribute */
+ unsigned size; /**< size of copied block */
};
-COMPILETIME_ASSERT(sizeof(struct ia32_attr_data_bitfield) <= 4, attr_bitfield);
+/**
+ * The attributes for immediates.
+ */
typedef struct ia32_immediate_attr_t ia32_immediate_attr_t;
struct ia32_immediate_attr_t {
- ia32_attr_t attr;
- ir_entity *symconst;
- long offset;
+ ia32_attr_t attr; /**< generic attribute */
+ ir_entity *symconst; /**< An entity if any. */
+ long offset; /**< An offset if any. */
+ unsigned sc_sign : 1; /**< The sign bit of the symconst. */
+ unsigned no_pic_adjust : 1; /**< constant can be relative to EIP */
};
+/**
+ * The attributes for x87 nodes.
+ */
typedef struct ia32_x87_attr_t ia32_x87_attr_t;
struct ia32_x87_attr_t {
- ia32_attr_t attr;
- const arch_register_t *x87[3]; /**< register slots for x87 register */
+ ia32_attr_t attr; /**< the generic attribute */
+ arch_register_t const *reg; /**< The explicit register operand. */
+ bool res_in_reg; /**< True if the result is in the explicit register operand, %st0 otherwise. */
+ bool pop; /**< Emit a pop suffix. */
+};
+
+typedef struct ia32_asm_reg_t ia32_asm_reg_t;
+struct ia32_asm_reg_t {
+ unsigned use_input : 1; /* use input or output pos */
+ unsigned valid : 1;
+ unsigned memory : 1;
+ unsigned dummy_fill : 13;
+ unsigned inout_pos : 16; /* in/out pos where the
+ register is assigned */
+ const ir_mode *mode;
};
+/**
+ * The attributes for ASM nodes.
+ */
typedef struct ia32_asm_attr_t ia32_asm_attr_t;
struct ia32_asm_attr_t {
- ia32_x87_attr_t x87_attr;
- ident *asm_text;
+ ia32_attr_t attr; /**< the generic attribute */
+ ident *asm_text;
+ const ia32_asm_reg_t *register_map;
+};
+
+/**
+ * The attributes for the ClimbFrame node.
+ */
+typedef struct ia32_climbframe_attr_t ia32_climbframe_attr_t;
+struct ia32_climbframe_attr_t {
+ ia32_attr_t attr; /**< generic attribute */
+ unsigned count; /**< number of frames to climb up */
};
/* the following union is necessary to indicate to the compiler that we might want to cast
* the structs (we use them to simulate OO-inheritance) */
union allow_casts_attr_t_ {
ia32_attr_t attr;
+ ia32_call_attr_t call_attr;
+ ia32_condcode_attr_t cc_attr;
+ ia32_copyb_attr_t cpy_attr;
ia32_x87_attr_t x87_attr;
ia32_asm_attr_t asm_attr;
ia32_immediate_attr_t immediate_attr;
+ ia32_climbframe_attr_t climbframe_attr;
+ ia32_switch_attr_t switch_attr;
};
#ifndef NDEBUG
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