X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fia32%2Fia32_nodes_attr.h;h=4b4eb66148efc2846cd13efe6c8f9117db4ec21b;hb=28aac01c6fc5a3546f1bd650d08d91a54ca75803;hp=065cb49c3351d53f697130b30a696b8298ccde9b;hpb=3654c4bea0fb78519945a6fcc053efcccf15258f;p=libfirm diff --git a/ir/be/ia32/ia32_nodes_attr.h b/ir/be/ia32/ia32_nodes_attr.h index 065cb49c3..4b4eb6614 100644 --- a/ir/be/ia32/ia32_nodes_attr.h +++ b/ir/be/ia32/ia32_nodes_attr.h @@ -27,14 +27,91 @@ #define FIRM_BE_IA32_IA32_NODES_ATTR_H #include "firm_types.h" -#include "../bearch_t.h" +#include "../bearch.h" #include "../bemachine.h" #include "irnode_t.h" -enum { - ia32_pn_Cmp_unsigned = 0x1000, - ia32_pn_Cmp_float = 0x2000, -}; +/** 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, @@ -49,22 +126,22 @@ typedef enum { } ia32_am_type_t; typedef enum { - 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 */ - match_8bit = 1 << 6, /**< supports 8 bit modes natively */ - match_16bit = 1 << 7, /**< supports 16bit modes natively */ - match_mode_neutral = 1 << 8, /**< 16 and 8 bit modes can be emulated - by 32 bit operations */ - match_dest_am = 1 << 9, - match_try_am = 1 << 10, /**< only try to produce AM node, don't - do anything if AM isn't possible */ - match_two_users = 1 << 11 /**< the instruction uses a load two times ... */ + 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 */ + match_mode_neutral = 1 << 6, /**< 16 and 8 bit modes can be emulated + by 32 bit operations */ + match_try_am = 1 << 7, /**< only try to produce AM node, don't + do anything if AM isn't possible */ + match_two_users = 1 << 8, /**< the instruction uses a load two times ... */ + match_upconv_32 = 1 << 9 /**< 8/16 bit insn are processed by doing + an upconv to 32bit */ } match_flags_t; +ENUM_BITSET(match_flags_t) typedef struct ia32_op_attr_t ia32_op_attr_t; struct ia32_op_attr_t { @@ -74,14 +151,16 @@ struct ia32_op_attr_t { #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_ia32_condcode_attr_t = 1 << 4, - IA32_ATTR_ia32_copyb_attr_t = 1 << 5, - IA32_ATTR_ia32_call_attr_t = 1 << 6 + 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 @@ -92,12 +171,13 @@ 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_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. */ + 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. */ @@ -108,14 +188,11 @@ struct ia32_attr_t { unsigned need_32bit_stackent:1; /**< needs a 32bit stack entity */ unsigned ins_permuted : 1; /**< inputs of node have been permuted (for commutative nodes) */ - unsigned cmp_unsigned : 1; /**< compare should be unsigned */ 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 */ @@ -126,11 +203,6 @@ struct ia32_attr_t { const be_execution_unit_t ***exec_units; /**< list of units this operation can be executed on */ - const arch_register_req_t **in_req; /**< register requirements for arguments */ - const arch_register_req_t **out_req; /**< register requirements for results */ - - const arch_register_t **slots; /**< register slots for assigned registers */ - ir_label_t exc_label; /**< the exception label iff this instruction can throw an exception */ #ifndef NDEBUG @@ -138,7 +210,6 @@ struct ia32_attr_t { unsigned attr_type; /**< bitfield indicating the attribute type */ #endif }; -COMPILETIME_ASSERT(sizeof(struct ia32_attr_data_bitfield) <= 4, attr_bitfield); /** * The attributes for a Call node. @@ -155,8 +226,18 @@ struct ia32_call_attr_t { */ typedef struct ia32_condcode_attr_t ia32_condcode_attr_t; struct ia32_condcode_attr_t { - ia32_attr_t attr; /**< generic attribute */ - long pn_code; /**< projnum "types" (e.g. indicate compare operators */ + ia32_attr_t attr; /**< generic attribute */ + ia32_condition_code_t condition_code; /**< condition code*/ +}; + +/** + * 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 */ + long default_pn; + ir_entity *jump_table; }; /** @@ -176,7 +257,8 @@ struct ia32_immediate_attr_t { 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 sc_sign : 1; /**< The sign bit of the symconst. */ + unsigned no_pic_adjust : 1; /**< constant can be relative to EIP */ }; /** @@ -209,6 +291,15 @@ struct ia32_asm_attr_t { 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_ { @@ -219,6 +310,8 @@ union allow_casts_attr_t_ { 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