// |
// $Id: peep.in,v 1.43 2000/12/01 03:19:01 hubbe Exp $ |
// |
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NOP : |
POP_N_ELEMS (0) : |
POP_N_ELEMS POP_VALUE : POP_N_ELEMS ($1a + 1) |
POP_VALUE POP_VALUE : POP_N_ELEMS (2) |
POP_VALUE POP_N_ELEMS : POP_N_ELEMS ($2a + 1) |
POP_N_ELEMS POP_N_ELEMS : POP_N_ELEMS ($1a + $2a) |
POP_N_ELEMS(1) : POP_VALUE |
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MARK MARK: MARK2 |
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ASSIGN_GLOBAL POP_VALUE : ASSIGN_GLOBAL_AND_POP($1a) |
ASSIGN_LOCAL POP_VALUE : ASSIGN_LOCAL_AND_POP($1a) |
CALL_LFUN POP_VALUE : CALL_LFUN_AND_POP($1a) |
APPLY POP_VALUE : APPLY_AND_POP($1a) |
MARK APPLY : MARK_APPLY($2a) |
MARK_APPLY POP_VALUE : MARK_APPLY_POP($1a) |
NUMBER(0) : CONST0 |
NUMBER(1) : CONST1 |
NUMBER(-1) : CONST_1 |
NUMBER (0x7fffffff) : BIGNUM |
CONST0 NEGATE : CONST0 |
CONST1 NEGATE : CONST_1 |
CONST_1 NEGATE : CONST1 |
NUMBER NEGATE : NEG_NUMBER($1a) |
NUMBER [$1a < 0 && (-$1a)>0] : NEG_NUMBER (-$1a) |
NEG_NUMBER NEGATE : NUMBER ($1a) |
NEGATE NEGATE : |
COMPL COMPL : |
NEGATE CONST_1 ADD_INTS : COMPL |
NEGATE CONST1 SUBTRACT : COMPL |
CONST0 ASSIGN_LOCAL_AND_POP : CLEAR_LOCAL($2a) |
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LOCAL_2_LOCAL [$1a == $1b] : |
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// Remove clearing of locals from the beginning of functions |
START_FUNCTION LABEL(0) CLEAR_LOCAL : LABEL(0) |
START_FUNCTION LABEL(0) CLEAR_2_LOCAL : LABEL(0) |
START_FUNCTION LABEL(0) CLEAR_4_LOCAL : LABEL(0) |
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START_FUNCTION CLEAR_LOCAL : |
START_FUNCTION CLEAR_2_LOCAL : |
START_FUNCTION CLEAR_4_LOCAL : |
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CLEAR_LOCAL NUMBER(0) ASSIGN_LOCAL_AND_POP ($1a) : CLEAR_LOCAL($1a) |
CLEAR_LOCAL NUMBER(0) ASSIGN_LOCAL_AND_POP ($1a+1) : CLEAR_2_LOCAL($1a) |
CLEAR_2_LOCAL CLEAR_2_LOCAL($1a+2) : CLEAR_4_LOCAL($1a) |
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// CONST_1 MULTIPLY : NEGATE |
// CONST0 MULTIPLY : POP_VALUE CONST0 |
// CONST1 MULTIPLY : |
// NUMBER MULTIPLY [count_bits($1a)==1]: NUMBER(my_log2($1a)) LSH |
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// CONST_1 DIVIDE : NEGATE |
// CONST1 DIVIDE : |
// NUMBER DIVIDE [count_bits($1a)==1]: NUMBER(my_log2($1a)) RSH |
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CONST0 SUBTRACT: |
CONST0 XOR: |
CONST_1 XOR: COMPL |
CONST0 RETURN: RETURN_0 |
CONST1 RETURN: RETURN_1 |
INC POP_VALUE: INC_AND_POP |
POST_INC POP_VALUE: INC_AND_POP |
DEC POP_VALUE: DEC_AND_POP |
POST_DEC POP_VALUE: DEC_AND_POP |
NOT BRANCH_WHEN_NON_ZERO: BRANCH_WHEN_ZERO($2a) |
NOT BRANCH_WHEN_ZERO: BRANCH_WHEN_NON_ZERO($2a) |
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POP_VALUE RETURN_0: RETURN_0 |
POP_N_ELEMS RETURN_0: RETURN_0 |
POP_VALUE RETURN_1: RETURN_1 |
POP_N_ELEMS RETURN_1: RETURN_1 |
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NOTREACHED !LABEL : NOTREACHED |
BRANCH !LABEL : BRANCH($1a) |
RETURN !LABEL : RETURN |
RETURN_0 !LABEL : RETURN_0 |
RETURN_1 !LABEL : RETURN_1 |
RETURN_LOCAL !LABEL : RETURN_LOCAL($1a) |
APPLY_AND_RETURN !LABEL : APPLY_AND_RETURN($1a) |
CALL_FUNCTION_AND_RETURN !LABEL : CALL_FUNCTION_AND_RETURN($1a) |
CALL_LFUN_AND_RETURN !LABEL : CALL_LFUN_AND_RETURN($1a) |
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LOCAL_LVALUE INC : INC_LOCAL ($1a) |
LOCAL_LVALUE POST_INC : POST_INC_LOCAL ($1a) |
LOCAL_LVALUE INC_AND_POP : INC_LOCAL_AND_POP ($1a) |
INC_LOCAL POP_VALUE : INC_LOCAL_AND_POP ($1a) |
POST_INC_LOCAL POP_VALUE : INC_LOCAL_AND_POP ($1a) |
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LOCAL_LVALUE DEC : DEC_LOCAL ($1a) |
LOCAL_LVALUE POST_DEC : POST_DEC_LOCAL ($1a) |
LOCAL_LVALUE DEC_AND_POP : DEC_LOCAL_AND_POP ($1a) |
DEC_LOCAL POP_VALUE : DEC_LOCAL_AND_POP ($1a) |
POST_DEC_LOCAL POP_VALUE : DEC_LOCAL_AND_POP ($1a) |
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ASSIGN_LOCAL_AND_POP LOCAL ($1a) RETURN: ASSIGN_LOCAL($1a) RETURN |
ASSIGN_LOCAL_AND_POP LOCAL ($1a) RETURN [!(Pike_compiler->compiler_frame->lexical_scope & SCOPE_SCOPED)]: RETURN |
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ASSIGN_LOCAL BRANCH_WHEN_ZERO LOCAL($1a) RETURN LABEL($2a): ASSIGN_LOCAL($1a) RETURN_IF_TRUE LABEL($2a) |
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ASSIGN_LOCAL BRANCH_WHEN_ZERO LOCAL($1a) RETURN LABEL($2a) [!(Pike_compiler->compiler_frame->lexical_scope & SCOPE_SCOPED)] : RETURN_IF_TRUE ASSIGN_LOCAL($1a) LABEL($2a) |
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ASSIGN_GLOBAL BRANCH_WHEN_ZERO GLOBAL($1a) RETURN LABEL($2a): ASSIGN_GLOBAL($1a) RETURN_IF_TRUE LABEL($2a) |
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GLOBAL_LVALUE INC_AND_POP GLOBAL($1a): GLOBAL_LVALUE($1a) INC |
GLOBAL_LVALUE DEC_AND_POP GLOBAL($1a): GLOBAL_LVALUE($1a) DEC |
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CONST1 BRANCH_WHEN_ZERO: |
CONST0 BRANCH_WHEN_ZERO: BRANCH($2a) |
CONST1 BRANCH_WHEN_NON_ZERO: BRANCH($2a) |
CONST0 BRANCH_WHEN_NON_ZERO: |
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// These optimizations are now handled in optimize_eq |
// CONST0 BRANCH_WHEN_EQ: BRANCH_WHEN_ZERO($2a) |
// CONST0 BRANCH_WHEN_NE: BRANCH_WHEN_NON_ZERO($2a) |
// CONST0 EQ: NOT |
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EQ BRANCH_WHEN_NON_ZERO: BRANCH_WHEN_EQ ($2a) |
NE BRANCH_WHEN_NON_ZERO: BRANCH_WHEN_NE ($2a) |
LT BRANCH_WHEN_NON_ZERO: BRANCH_WHEN_LT ($2a) |
GT BRANCH_WHEN_NON_ZERO: BRANCH_WHEN_GT ($2a) |
LE BRANCH_WHEN_NON_ZERO: BRANCH_WHEN_LE ($2a) |
GE BRANCH_WHEN_NON_ZERO: BRANCH_WHEN_GE ($2a) |
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EQ BRANCH_WHEN_ZERO: BRANCH_WHEN_NE ($2a) |
NE BRANCH_WHEN_ZERO: BRANCH_WHEN_EQ ($2a) |
LT BRANCH_WHEN_ZERO: BRANCH_WHEN_GE ($2a) |
GT BRANCH_WHEN_ZERO: BRANCH_WHEN_LE ($2a) |
LE BRANCH_WHEN_ZERO: BRANCH_WHEN_GT ($2a) |
GE BRANCH_WHEN_ZERO: BRANCH_WHEN_LT ($2a) |
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EQ LOR: EQ_OR ($2a) |
EQ LAND: EQ_AND ($2a) |
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EQ NOT: NE |
NE NOT: EQ |
LT NOT: GE |
GT NOT: LE |
LE NOT: GT |
GE NOT: LT |
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LOCAL LOCAL [$3o != F_SIZEOF && $3o != F_INDEX ]: 2_LOCALS ($1a,$2a) |
MARK LOCAL [ $3o != F_SIZEOF && $3o != F_INDEX ]: MARK_AND_LOCAL ($2a) |
MARK STRING : MARK_AND_STRING($2a) |
LOCAL SIZEOF: SIZEOF_LOCAL ($1a) |
STRING INDEX: STRING_INDEX ($1a) |
INDEX SWITCH: SWITCH_ON_INDEX($2a) |
LOCAL SWITCH: SWITCH_ON_LOCAL($1a,$2a) |
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STRING CLEAR_STRING_SUBTYPE: STRING ($1a) |
CONST0 CLEAR_STRING_SUBTYPE: CONST0 |
CONST1 CLEAR_STRING_SUBTYPE: CONST1 |
CONST_1 CLEAR_STRING_SUBTYPE: CONST_1 |
NUMBER CLEAR_STRING_SUBTYPE: NUMBER($1a) |
NEG_NUMBER CLEAR_STRING_SUBTYPE: NEG_NUMBER($1a) |
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LOCAL INDEX: LOCAL_INDEX ($1a) |
LOCAL CLEAR_STRING_SUBTYPE INDEX: LOCAL_INDEX ($1a) |
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LOCAL LOCAL INDEX: LOCAL_LOCAL_INDEX($2a,$1a) |
LOCAL LOCAL CLEAR_STRING_SUBTYPE INDEX: LOCAL_LOCAL_INDEX($2a,$1a) |
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CONST0 INDEX: POS_INT_INDEX (0) |
CONST_1 INDEX: NEG_INT_INDEX (1) |
CONST1 INDEX: POS_INT_INDEX (1) |
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NUMBER [$1a < 0 && ($1a != -$1a)] INDEX: NEG_INT_INDEX (-$1a) |
NUMBER [$1a >= 0] INDEX: POS_INT_INDEX ($1a) |
NEG_NUMBER [$1a >= 0] INDEX: NEG_INT_INDEX ($1a) |
NEG_NUMBER [$1a < 0 && ($1a != -$1a)] INDEX: POS_INT_INDEX (-$1a) |
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BRANCH_WHEN_ZERO BRANCH LABEL ($1a): BRANCH_WHEN_NON_ZERO($2a) LABEL($1a) |
BRANCH_WHEN_NON_ZERO BRANCH LABEL ($1a): BRANCH_WHEN_ZERO($2a) LABEL($1a) |
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BRANCH_WHEN_EQ BRANCH LABEL ($1a) : BRANCH_WHEN_NE($2a) LABEL($1a) |
BRANCH_WHEN_NE BRANCH LABEL ($1a) : BRANCH_WHEN_EQ($2a) LABEL($1a) |
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BRANCH_WHEN_LT BRANCH LABEL ($1a) : BRANCH_WHEN_GE($2a) LABEL($1a) |
BRANCH_WHEN_GE BRANCH LABEL ($1a) : BRANCH_WHEN_LT($2a) LABEL($1a) |
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BRANCH_WHEN_LE BRANCH LABEL ($1a) : BRANCH_WHEN_GT($2a) LABEL($1a) |
BRANCH_WHEN_GT BRANCH LABEL ($1a) : BRANCH_WHEN_LE($2a) LABEL($1a) |
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CONST0 ADD_INTS: ADD_INT (0) |
CONST1 ADD_INTS: ADD_INT (1) |
CONST_1 ADD_INTS: ADD_NEG_INT (1) |
NUMBER [$1a >= 0] ADD_INTS : ADD_INT ($1a) |
NUMBER [$1a < 0 && ($1a != -$1a)] ADD_INTS : ADD_NEG_INT (-$1a) |
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CONST0 ADD: ADD_INT (0) |
CONST1 ADD: ADD_INT (1) |
CONST_1 ADD: ADD_NEG_INT (1) |
NUMBER [$1a >= 0] ADD : ADD_INT ($1a) |
NUMBER [$1a < 0 && ($1a != -$1a) ] ADD : ADD_NEG_INT (-$1a) |
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CONST0 SUBTRACT: ADD_INT (0) |
CONST1 SUBTRACT: ADD_NEG_INT (-1) |
CONST_1 SUBTRACT: ADD_INT (1) |
NUMBER [$1a >= 0] SUBTRACT : ADD_NEG_INT ($1a) |
NUMBER [$1a < 0 && ($1a != -$1a)] SUBTRACT : ADD_INT (-$1a) |
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LTOSVAL2 ADD ASSIGN_AND_POP : ADD_TO_AND_POP |
LTOSVAL ADD ASSIGN_AND_POP : ADD_TO_AND_POP |
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LTOSVAL2 ADD_INTS ASSIGN_AND_POP : ADD_TO_AND_POP |
LTOSVAL ADD_INTS ASSIGN_AND_POP : ADD_TO_AND_POP |
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LTOSVAL2 ADD_FLOATS ASSIGN_AND_POP : ADD_TO_AND_POP |
LTOSVAL ADD_FLOATS ASSIGN_AND_POP : ADD_TO_AND_POP |
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LOCAL CONST1 ADD_TO_AND_POP : INC_LOCAL_AND_POP($1a) |
LOCAL CONST_1 ADD_TO_AND_POP : DEC_LOCAL_AND_POP($1a) |
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APPLY [ !(debug_options & NO_TAILRECURSION) ] RETURN : APPLY_AND_RETURN($1a) |
CALL_FUNCTION [ !(debug_options & NO_TAILRECURSION) ] RETURN : CALL_FUNCTION_AND_RETURN |
CALL_LFUN [ !(debug_options & NO_TAILRECURSION) ] RETURN : CALL_LFUN_AND_RETURN($1a) |
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LOCAL RETURN : RETURN_LOCAL($1a) |
APPLY ASSIGN_LOCAL_AND_POP : APPLY_ASSIGN_LOCAL_AND_POP($1a,$2a) |
ASSIGN_LOCAL_AND_POP INC_LOCAL_AND_POP($1a) : ADD_INT(1) ASSIGN_LOCAL_AND_POP($1a) |
ASSIGN_LOCAL_AND_POP DEC_LOCAL_AND_POP($1a) : ADD_NEG_INT(1) ASSIGN_LOCAL_AND_POP($1a) |
NUMBER ADD_INT [ !INT_TYPE_ADD_OVERFLOW($1a, $2a) ] : NUMBER($1a+$2a) |
NUMBER ADD_NEG_INT [ !INT_TYPE_SUB_OVERFLOW($1a, $2a) ]: NUMBER($1a-$2a) |
NEG_NUMBER ADD_INT [ !INT_TYPE_ADD_OVERFLOW(-$1a, $2a) ]: NUMBER(-$1a+$2a) |
NEG_NUMBER ADD_NEG_INT [ !INT_TYPE_SUB_OVERFLOW(-$1a, $2a) ]: NUMBER(-$1a-$2a) |
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LOCAL BRANCH_WHEN_NON_ZERO : BRANCH_IF_LOCAL($1a) POINTER($2a) |
LOCAL BRANCH_WHEN_ZERO : BRANCH_IF_NOT_LOCAL($1a) POINTER($2a) |
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// Branches that jump to the next instruction |
// Basic branches |
BRANCH LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_ZERO LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_NON_ZERO LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_EQ LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_NE LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_LT LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_LE LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_GT LABEL($1a) : LABEL($1a) |
BRANCH_WHEN_GE LABEL($1a) : LABEL($1a) |
// These variants use a POINTER |
BRANCH_IF_NOT_LOCAL_ARROW POINTER LABEL ($2a) : LABEL($2a) |
BRANCH_IF_LOCAL POINTER LABEL($2a) : LABEL($2a) |
BRANCH_IF_NOT_LOCAL POINTER LABEL($2a) : LABEL($2a) |
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#define OPT_INCDEC(X) \ |
X##_LOCAL_AND_POP LOCAL ($1a) : X##_LOCAL ($1a) ; \ |
X##_LOCAL_AND_POP LOCAL LOCAL ($1a) : LOCAL($2a) X##_LOCAL ($1a) ; \ |
X##_LOCAL_AND_POP GLOBAL LOCAL ($1a) : GLOBAL($2a) X##_LOCAL ($1a) ; |
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OPT_INCDEC(INC) |
OPT_INCDEC(DEC) |
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ASSIGN_LOCAL_AND_POP LOCAL($1a) : ASSIGN_LOCAL($1a) |
ASSIGN_GLOBAL_AND_POP GLOBAL($1a) : ASSIGN_GLOBAL($1a) |
APPLY_ASSIGN_LOCAL_AND_POP LOCAL ($1b) : APPLY_ASSIGN_LOCAL($1a,$1b) |
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DEC_LOCAL_AND_POP MARK_AND_LOCAL ($1a) : MARK DEC_LOCAL ($1a) |
INC_LOCAL_AND_POP MARK_AND_LOCAL ($1a) : MARK INC_LOCAL ($1a) |
ASSIGN_GLOBAL_AND_POP MARK GLOBAL($1a) : MARK_X(1) ASSIGN_GLOBAL($1a) |
ASSIGN_LOCAL_AND_POP MARK_AND_LOCAL($1a) : MARK_X(1) ASSIGN_LOCAL($1a) |
APPLY_ASSIGN_LOCAL_AND_POP MARK_AND_LOCAL ($1b) : APPLY_ASSIGN_LOCAL($1a,$1b) MARK_X(1) |
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ASSIGN_LOCAL ASSIGN_LOCAL($1a) : ASSIGN_LOCAL($1a) |
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// MARK_X rules |
MARK_X(0) : MARK |
LOCAL MARK_X [$2a>0] : MARK_X($2a-1) LOCAL($1a) |
STRING MARK_X [$2a>0] : MARK_X($2a-1) STRING($1a) |
NUMBER MARK_X [$2a>0] : MARK_X($2a-1) NUMBER($1a) |
CONST0 MARK_X [$2a>0] : MARK_X($2a-1) CONST0 |
CONST1 MARK_X [$2a>0] : MARK_X($2a-1) CONST1 |
CONST_1 MARK_X [$2a>0] : MARK_X($2a-1) CONST_1 |
NEG_NUMBER MARK_X [$2a>0] : MARK_X($2a-1) NEG_NUMBER($1a) |
GLOBAL MARK_X [$2a>0] : MARK_X($2a-1) GLOBAL($1a) |
MARK_APPLY MARK_X [$2a>0] : MARK_X($2a-1) MARK_APPLY($1a) |
CONSTANT MARK_X [$2a>0] : MARK_X($2a-1) CONSTANT($1a) |
FLOAT MARK_X [$2a>0] : MARK_X($2a-1) FLOAT($1a) |
LFUN MARK_X [$2a>0] : MARK_X($2a-1) LFUN($1a) |
LTOSVAL MARK_X [$2a>0] : MARK_X($2a-1) LTOSVAL |
LOCAL_LVALUE MARK_X [$2a>1] : MARK_X($2a-2) LOCAL_LVALUE($1a) |
2_LOCALS MARK_X [$2a>0] : LOCAL($1a) MARK_X($2a-1) LOCAL($1b) |
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#define BasicBranch2(Branch,Oper,Pre,Post,Variable) \ |
Variable Branch Pre Variable ($1a) : Variable ($1a) Oper ($2a) Post ; \ |
ASSIGN_##Variable Branch Pre Variable ($1a) : ASSIGN_##Variable($1a) Oper ($2a) Post ; |
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#define BasicBranch1(Branch,Oper,Pre,Post) \ |
BasicBranch2(Branch,Oper,Pre,Post,LOCAL) \ |
BasicBranch2(Branch,Oper,Pre,Post,GLOBAL) |
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#define BasicBranch0(Branch,Oper) \ |
BasicBranch1(Branch,Oper,MARK,MARK_X(1)) \ |
BasicBranch1(Branch,Oper, , ) |
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BasicBranch0(BRANCH_WHEN_NON_ZERO, BRANCH_AND_POP_WHEN_NON_ZERO) |
BasicBranch0(BRANCH_WHEN_ZERO, BRANCH_AND_POP_WHEN_ZERO) |
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#define SimpleBranch(Sequence,X) \ |
Sequence BRANCH_WHEN_ZERO Sequence : Sequence BRANCH_AND_POP_WHEN_ZERO ( X ) ; \ |
Sequence BRANCH_WHEN_ZERO MARK Sequence : Sequence BRANCH_AND_POP_WHEN_ZERO ( X ) MARK_X(1) ; |
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SimpleBranch( LOCAL_ARROW($1a, $1b), $2a ) |
SimpleBranch( LOCAL_ARROW($1a, $1b) ARROW($2a), $3a ) |
SimpleBranch( LOCAL_ARROW($1a, $1b) ARROW($2a) ARROW($3a), $4a ) |
SimpleBranch( LOCAL_ARROW($1a, $1b) ARROW($2a) ARROW($3a) ARROW($4a), $5a ) |
SimpleBranch( GLOBAL_LOCAL_INDEX($1a, $1b) , $2a ) |
SimpleBranch( LOCAL_LOCAL_INDEX($1a, $1b) , $2a ) |
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SimpleBranch( GLOBAL($1a) ARROW ($2a), $3a ) |
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LOCAL ASSIGN_LOCAL_AND_POP : LOCAL_2_LOCAL($2a,$1a) |
GLOBAL ASSIGN_LOCAL_AND_POP : GLOBAL_2_LOCAL($1a,$2a) |
LOCAL ASSIGN_GLOBAL_AND_POP : LOCAL_2_GLOBAL($2a,$1a) |
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LOCAL ARROW : LOCAL_ARROW($2a,$1a) |
LOCAL_ARROW BRANCH_WHEN_ZERO: BRANCH_IF_NOT_LOCAL_ARROW($1a,$1b) POINTER($2a) |
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GLOBAL LOCAL_INDEX : GLOBAL_LOCAL_INDEX($1a,$2a) |
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SIZEOF CONST1 BRANCH_WHEN_LT : SIZEOF BRANCH_WHEN_ZERO ($3a) |
SIZEOF_LOCAL CONST1 BRANCH_WHEN_LT : SIZEOF_LOCAL($1a) BRANCH_WHEN_ZERO ($3a) |
SIZEOF CONST0 BRANCH_WHEN_LE : SIZEOF BRANCH_WHEN_ZERO ($3a) |
SIZEOF_LOCAL CONST0 BRANCH_WHEN_LE : SIZEOF_LOCAL($1a) BRANCH_WHEN_ZERO ($3a) |
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CLEAR_LOCAL DEC_LOCAL_AND_POP($1a) : CONST_1 ASSIGN_LOCAL_AND_POP($1a) |
CLEAR_LOCAL INC_LOCAL_AND_POP($1a) : CONST1 ASSIGN_LOCAL_AND_POP($1a) |
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NUMBER POP_VALUE : |
STRING POP_VALUE : |
FLOAT POP_VALUE : |
CONSTANT POP_VALUE : |
LOCAL POP_VALUE : |
IDENTIFIER POP_VALUE : |
TRAMPOLINE POP_VALUE : |
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RECUR RETURN: TAIL_RECUR ($1a) |
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// This doesn't really work |
// MARK TAIL_RECUR : BRANCH ($1a) |
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ASSIGN_LOCAL BRANCH_WHEN_ZERO 2_LOCALS(,$1a) BRANCH_WHEN_EQ : ASSIGN_LOCAL($1a) BRANCH_AND_POP_WHEN_ZERO($2a) LOCAL($3a) BRANCH_WHEN_EQ($4a) |
ASSIGN_LOCAL BRANCH_WHEN_ZERO 2_LOCALS(,$1a) BRANCH_WHEN_NE : ASSIGN_LOCAL($1a) BRANCH_AND_POP_WHEN_ZERO($2a) LOCAL($3a) BRANCH_WHEN_NE($4a) |
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/* This will facilitate other optimizations I hope */ |
CLEAR_LOCAL MARK LOCAL [ $1a != $3a ] : MARK LOCAL($3a) CLEAR_LOCAL($1a) |
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/* The result of this optimization could be reordered... */ |
CLEAR_LOCAL MARK LOCAL($1a) : MARK CLEAR_LOCAL($1a) CONST0 |
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