PR middle-end/77357 - strlen of constant strings not folded
[official-gcc.git] / gcc / testsuite / gcc.dg / tree-ssa / pr68619-5.c
blob7eee1b8877ddaf70213ee4c3101350bb93e5e267
1 /* { dg-do compile } */
2 /* { dg-options "-O2 -w" } */
3 typedef union tree_node *tree;
4 typedef union gimple_statement_d *gimple;
5 enum machine_mode
6 { VOIDmode, BLKmode, CCmode, CCGCmode, CCGOCmode, CCNOmode, CCAmode, CCCmode,
7 CCOmode, CCSmode, CCZmode, CCFPmode, CCFPUmode, BImode, QImode, HImode,
8 SImode, DImode, TImode, OImode, QQmode, HQmode, SQmode, DQmode, TQmode,
9 UQQmode, UHQmode, USQmode, UDQmode, UTQmode, HAmode, SAmode, DAmode,
10 TAmode, UHAmode, USAmode, UDAmode, UTAmode, SFmode, DFmode, XFmode,
11 TFmode, SDmode, DDmode, TDmode, CQImode, CHImode, CSImode, CDImode,
12 CTImode, COImode, SCmode, DCmode, XCmode, TCmode, V2QImode, V4QImode,
13 V2HImode, V1SImode, V8QImode, V4HImode, V2SImode, V1DImode, V16QImode,
14 V8HImode, V4SImode, V2DImode, V1TImode, V32QImode, V16HImode, V8SImode,
15 V4DImode, V2TImode, V64QImode, V32HImode, V16SImode, V8DImode, V4TImode,
16 V2SFmode, V4SFmode, V2DFmode, V8SFmode, V4DFmode, V2TFmode, V16SFmode,
17 V8DFmode, V4TFmode, MAX_MACHINE_MODE, MIN_MODE_RANDOM =
18 VOIDmode, MAX_MODE_RANDOM = BLKmode, MIN_MODE_CC = CCmode, MAX_MODE_CC =
19 CCFPUmode, MIN_MODE_INT = QImode, MAX_MODE_INT =
20 OImode, MIN_MODE_PARTIAL_INT = VOIDmode, MAX_MODE_PARTIAL_INT =
21 VOIDmode, MIN_MODE_FRACT = QQmode, MAX_MODE_FRACT =
22 TQmode, MIN_MODE_UFRACT = UQQmode, MAX_MODE_UFRACT =
23 UTQmode, MIN_MODE_ACCUM = HAmode, MAX_MODE_ACCUM =
24 TAmode, MIN_MODE_UACCUM = UHAmode, MAX_MODE_UACCUM =
25 UTAmode, MIN_MODE_FLOAT = SFmode, MAX_MODE_FLOAT =
26 TFmode, MIN_MODE_DECIMAL_FLOAT = SDmode, MAX_MODE_DECIMAL_FLOAT =
27 TDmode, MIN_MODE_COMPLEX_INT = CQImode, MAX_MODE_COMPLEX_INT =
28 COImode, MIN_MODE_COMPLEX_FLOAT = SCmode, MAX_MODE_COMPLEX_FLOAT =
29 TCmode, MIN_MODE_VECTOR_INT = V2QImode, MAX_MODE_VECTOR_INT =
30 V4TImode, MIN_MODE_VECTOR_FRACT = VOIDmode, MAX_MODE_VECTOR_FRACT =
31 VOIDmode, MIN_MODE_VECTOR_UFRACT = VOIDmode, MAX_MODE_VECTOR_UFRACT =
32 VOIDmode, MIN_MODE_VECTOR_ACCUM = VOIDmode, MAX_MODE_VECTOR_ACCUM =
33 VOIDmode, MIN_MODE_VECTOR_UACCUM = VOIDmode, MAX_MODE_VECTOR_UACCUM =
34 VOIDmode, MIN_MODE_VECTOR_FLOAT = V2SFmode, MAX_MODE_VECTOR_FLOAT =
35 V4TFmode, NUM_MACHINE_MODES = MAX_MACHINE_MODE };
36 enum mode_class
37 { MODE_RANDOM, MODE_CC, MODE_INT, MODE_PARTIAL_INT, MODE_FRACT, MODE_UFRACT,
38 MODE_ACCUM, MODE_UACCUM, MODE_FLOAT, MODE_DECIMAL_FLOAT, MODE_COMPLEX_INT,
39 MODE_COMPLEX_FLOAT, MODE_VECTOR_INT, MODE_VECTOR_FRACT,
40 MODE_VECTOR_UFRACT, MODE_VECTOR_ACCUM, MODE_VECTOR_UACCUM,
41 MODE_VECTOR_FLOAT, MAX_MODE_CLASS };
42 extern const unsigned char mode_class[NUM_MACHINE_MODES];
43 extern const unsigned char mode_inner[NUM_MACHINE_MODES];
44 struct real_format
46 unsigned char has_nans;
48 extern const struct real_format *real_format_for_mode[MAX_MODE_FLOAT -
49 MIN_MODE_FLOAT + 1 +
50 MAX_MODE_DECIMAL_FLOAT -
51 MIN_MODE_DECIMAL_FLOAT +
52 1];
53 enum tree_code
54 { ERROR_MARK, IDENTIFIER_NODE, TREE_LIST, TREE_VEC, BLOCK, OFFSET_TYPE,
55 ENUMERAL_TYPE, BOOLEAN_TYPE, INTEGER_TYPE, REAL_TYPE, POINTER_TYPE,
56 REFERENCE_TYPE, NULLPTR_TYPE, FIXED_POINT_TYPE, COMPLEX_TYPE, VECTOR_TYPE,
57 ARRAY_TYPE, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, VOID_TYPE,
58 FUNCTION_TYPE, METHOD_TYPE, LANG_TYPE, INTEGER_CST, REAL_CST, FIXED_CST,
59 COMPLEX_CST, VECTOR_CST, STRING_CST, FUNCTION_DECL, LABEL_DECL,
60 FIELD_DECL, VAR_DECL, CONST_DECL, PARM_DECL, TYPE_DECL, RESULT_DECL,
61 DEBUG_EXPR_DECL, NAMESPACE_DECL, IMPORTED_DECL, TRANSLATION_UNIT_DECL,
62 COMPONENT_REF, BIT_FIELD_REF, REALPART_EXPR, IMAGPART_EXPR, ARRAY_REF,
63 ARRAY_RANGE_REF, INDIRECT_REF, OBJ_TYPE_REF, CONSTRUCTOR, COMPOUND_EXPR,
64 MODIFY_EXPR, INIT_EXPR, TARGET_EXPR, COND_EXPR, VEC_COND_EXPR, BIND_EXPR,
65 CALL_EXPR, WITH_CLEANUP_EXPR, CLEANUP_POINT_EXPR, PLACEHOLDER_EXPR,
66 PLUS_EXPR, MINUS_EXPR, MULT_EXPR, POINTER_PLUS_EXPR, TRUNC_DIV_EXPR,
67 CEIL_DIV_EXPR, FLOOR_DIV_EXPR, ROUND_DIV_EXPR, TRUNC_MOD_EXPR,
68 CEIL_MOD_EXPR, FLOOR_MOD_EXPR, ROUND_MOD_EXPR, RDIV_EXPR, EXACT_DIV_EXPR,
69 FIX_TRUNC_EXPR, FLOAT_EXPR, NEGATE_EXPR, MIN_EXPR, MAX_EXPR, ABS_EXPR,
70 LSHIFT_EXPR, RSHIFT_EXPR, LROTATE_EXPR, RROTATE_EXPR, BIT_IOR_EXPR,
71 BIT_XOR_EXPR, BIT_AND_EXPR, BIT_NOT_EXPR, TRUTH_ANDIF_EXPR,
72 TRUTH_ORIF_EXPR, TRUTH_AND_EXPR, TRUTH_OR_EXPR, TRUTH_XOR_EXPR,
73 TRUTH_NOT_EXPR, LT_EXPR, LE_EXPR, GT_EXPR, GE_EXPR, EQ_EXPR, NE_EXPR,
74 UNORDERED_EXPR, ORDERED_EXPR, UNLT_EXPR, UNLE_EXPR, UNGT_EXPR, UNGE_EXPR,
75 UNEQ_EXPR, LTGT_EXPR, RANGE_EXPR, PAREN_EXPR, CONVERT_EXPR,
76 ADDR_SPACE_CONVERT_EXPR, FIXED_CONVERT_EXPR, NOP_EXPR, NON_LVALUE_EXPR,
77 VIEW_CONVERT_EXPR, COMPOUND_LITERAL_EXPR, SAVE_EXPR, ADDR_EXPR,
78 FDESC_EXPR, COMPLEX_EXPR, CONJ_EXPR, PREDECREMENT_EXPR, PREINCREMENT_EXPR,
79 POSTDECREMENT_EXPR, POSTINCREMENT_EXPR, VA_ARG_EXPR, TRY_CATCH_EXPR,
80 TRY_FINALLY_EXPR, DECL_EXPR, LABEL_EXPR, GOTO_EXPR, RETURN_EXPR,
81 EXIT_EXPR, LOOP_EXPR, SWITCH_EXPR, CASE_LABEL_EXPR, ASM_EXPR, SSA_NAME,
82 CATCH_EXPR, EH_FILTER_EXPR, SCEV_KNOWN, SCEV_NOT_KNOWN, POLYNOMIAL_CHREC,
83 STATEMENT_LIST, ASSERT_EXPR, TREE_BINFO, WITH_SIZE_EXPR,
84 REALIGN_LOAD_EXPR, TARGET_MEM_REF, MEM_REF, OMP_PARALLEL, OMP_TASK,
85 OMP_FOR, OMP_SECTIONS, OMP_SINGLE, OMP_SECTION, OMP_MASTER, OMP_ORDERED,
86 OMP_CRITICAL, OMP_ATOMIC, OMP_CLAUSE, REDUC_MAX_EXPR, REDUC_MIN_EXPR,
87 REDUC_PLUS_EXPR, DOT_PROD_EXPR, WIDEN_SUM_EXPR, WIDEN_MULT_EXPR,
88 WIDEN_MULT_PLUS_EXPR, WIDEN_MULT_MINUS_EXPR, FMA_EXPR, VEC_LSHIFT_EXPR,
89 VEC_RSHIFT_EXPR, VEC_WIDEN_MULT_HI_EXPR, VEC_WIDEN_MULT_LO_EXPR,
90 VEC_UNPACK_HI_EXPR, VEC_UNPACK_LO_EXPR, VEC_UNPACK_FLOAT_HI_EXPR,
91 VEC_UNPACK_FLOAT_LO_EXPR, VEC_PACK_TRUNC_EXPR, VEC_PACK_SAT_EXPR,
92 VEC_PACK_FIX_TRUNC_EXPR, VEC_EXTRACT_EVEN_EXPR, VEC_EXTRACT_ODD_EXPR,
93 VEC_INTERLEAVE_HIGH_EXPR, VEC_INTERLEAVE_LOW_EXPR, PREDICT_EXPR,
94 OPTIMIZATION_NODE, TARGET_OPTION_NODE, LAST_AND_UNUSED_TREE_CODE,
95 C_MAYBE_CONST_EXPR, EXCESS_PRECISION_EXPR, UNCONSTRAINED_ARRAY_TYPE,
96 UNCONSTRAINED_ARRAY_REF, NULL_EXPR, PLUS_NOMOD_EXPR, MINUS_NOMOD_EXPR,
97 ATTR_ADDR_EXPR, STMT_STMT, LOOP_STMT, EXIT_STMT, OFFSET_REF, PTRMEM_CST,
98 NEW_EXPR, VEC_NEW_EXPR, DELETE_EXPR, VEC_DELETE_EXPR, SCOPE_REF,
99 MEMBER_REF, TYPE_EXPR, AGGR_INIT_EXPR, VEC_INIT_EXPR, THROW_EXPR,
100 EMPTY_CLASS_EXPR, BASELINK, TEMPLATE_DECL, TEMPLATE_PARM_INDEX,
101 TEMPLATE_TEMPLATE_PARM, TEMPLATE_TYPE_PARM, TYPENAME_TYPE, TYPEOF_TYPE,
102 BOUND_TEMPLATE_TEMPLATE_PARM, UNBOUND_CLASS_TEMPLATE, USING_DECL,
103 USING_STMT, DEFAULT_ARG, TEMPLATE_ID_EXPR, OVERLOAD, PSEUDO_DTOR_EXPR,
104 MODOP_EXPR, CAST_EXPR, REINTERPRET_CAST_EXPR, CONST_CAST_EXPR,
105 STATIC_CAST_EXPR, DYNAMIC_CAST_EXPR, DOTSTAR_EXPR, TYPEID_EXPR,
106 NOEXCEPT_EXPR, NON_DEPENDENT_EXPR, CTOR_INITIALIZER, TRY_BLOCK,
107 EH_SPEC_BLOCK, HANDLER, MUST_NOT_THROW_EXPR, CLEANUP_STMT, IF_STMT,
108 FOR_STMT, RANGE_FOR_STMT, WHILE_STMT, DO_STMT, BREAK_STMT, CONTINUE_STMT,
109 SWITCH_STMT, EXPR_STMT, TAG_DEFN, OFFSETOF_EXPR, SIZEOF_EXPR, ARROW_EXPR,
110 ALIGNOF_EXPR, AT_ENCODE_EXPR, STMT_EXPR, UNARY_PLUS_EXPR, STATIC_ASSERT,
111 TYPE_ARGUMENT_PACK, NONTYPE_ARGUMENT_PACK, TYPE_PACK_EXPANSION,
112 EXPR_PACK_EXPANSION, ARGUMENT_PACK_SELECT, TRAIT_EXPR, LAMBDA_EXPR,
113 DECLTYPE_TYPE, TEMPLATE_INFO, URSHIFT_EXPR, COMPARE_EXPR, COMPARE_L_EXPR,
114 COMPARE_G_EXPR, CLASS_INTERFACE_TYPE, CLASS_IMPLEMENTATION_TYPE,
115 CATEGORY_INTERFACE_TYPE, CATEGORY_IMPLEMENTATION_TYPE,
116 PROTOCOL_INTERFACE_TYPE, KEYWORD_DECL, INSTANCE_METHOD_DECL,
117 CLASS_METHOD_DECL, PROPERTY_DECL, MESSAGE_SEND_EXPR, CLASS_REFERENCE_EXPR,
118 PROPERTY_REF, MAX_TREE_CODES };
119 struct tree_base
121 enum tree_code code:16;
123 struct tree_typed
125 tree type;
127 struct tree_type
129 enum machine_mode mode:8;
131 union tree_node
133 struct tree_base base;
134 struct tree_typed typed;
135 struct tree_type type;
137 enum tree_code
138 parse_predicate (tree cond, tree * op0, tree * op1)
140 gimple s;
141 tree op;
142 tree type = (*(&op->typed.type));
143 enum tree_code code;
144 return invert_tree_comparison (code,
145 ((((mode_class
146 [((((type))->base.code) ==
147 VECTOR_TYPE ? vector_type_mode (type)
148 : (type)->type.mode)]) ==
149 MODE_VECTOR_FLOAT)
151 ((real_format_for_mode
152 [(((enum mode_class)
153 mode_class[(((enum mode_class)
154 mode_class[((((type))->
155 base.
156 code) ==
157 VECTOR_TYPE ?
158 vector_type_mode
159 (type)
160 : (type)->
161 type.
162 mode)]) ==
163 MODE_DECIMAL_FLOAT)
164 ? (((((type))->base.
165 code) ==
166 VECTOR_TYPE ?
167 vector_type_mode (type)
168 : (type)->type.
169 mode)) : ((enum
170 machine_mode)
171 mode_inner[((((type))->base.code) == VECTOR_TYPE ? vector_type_mode (type) : (type)->type.mode)])]) == MODE_DECIMAL_FLOAT) ? ((((((enum mode_class) mode_class[((((type))->base.code) == VECTOR_TYPE ? vector_type_mode (type) : (type)->type.mode)]) == MODE_DECIMAL_FLOAT) ? (((((type))->base.code) == VECTOR_TYPE ? vector_type_mode (type) : (type)->type.mode)) : ((enum machine_mode) mode_inner[((((type))->base.code) == VECTOR_TYPE ? vector_type_mode (type) : (type)->type.mode)])) - MIN_MODE_DECIMAL_FLOAT) + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) : (((((enum mode_class) mode_class[((((type))->base.code) == VECTOR_TYPE ? vector_type_mode (type) : (type)->type.mode)]) == MODE_DECIMAL_FLOAT) ? (((((type))->base.code) == VECTOR_TYPE ? vector_type_mode (type) : (type)->type.mode)) : ((enum machine_mode) mode_inner[((((type))->base.code) == VECTOR_TYPE ? vector_type_mode (type) : (type)->type.mode)])) - MIN_MODE_FLOAT)]))->has_nans) ));