--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-O2 -w" } */
+
+/* This file was automatically reduced from tree-ssa-operands.c. It
+ contains many warnings, but it exposes a copy propagation bug that
+ is somewhat difficult to reproduce otherwise. */
+
+typedef long unsigned int size_t;
+ extern void fancy_abort (const char *, int, const char *) __attribute__ ((__noreturn__));
+ typedef union tree_node *tree;
+ enum tree_code {
+ TREE_LIST, ARRAY_TYPE, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, STRING_CST, LT_EXPR, GE_EXPR, LABEL_EXPR, ASM_EXPR, SSA_NAME, };
+ enum tree_code_class {
+ tcc_type, tcc_reference, tcc_expression };
+ extern const enum tree_code_class tree_code_type[];
+ extern const unsigned char tree_code_length[];
+ struct tree_common {
+ union tree_ann_d *ann;
+ __extension__ enum tree_code code : 8;
+ };
+ struct tree_string {
+ char str[1];
+ };
+ struct tree_list {
+ tree purpose;
+ tree value;
+ };
+ struct tree_exp {
+ tree operands[1];
+ };
+ typedef struct ssa_use_operand_d {
+ struct ssa_use_operand_d* prev;
+ struct ssa_use_operand_d* next;
+ tree stmt;
+ tree * use;
+ }
+ ssa_use_operand_t;
+ struct tree_ssa_name {
+ struct ssa_use_operand_d imm_uses;
+ };
+ union tree_node {
+ struct tree_common common;
+ struct tree_string string;
+ struct tree_list list;
+ struct tree_exp exp;
+ struct tree_ssa_name ssa_name;
+ };
+ typedef struct bitmap_head_def *bitmap;
+ typedef union varray_data_tag {
+ char c[1];
+ int i[1];
+ tree * tp[1];
+ }
+ varray_data;
+ struct varray_head_tag {
+ size_t num_elements;
+ size_t elements_used;
+ varray_data data;
+ };
+ typedef struct varray_head_tag *varray_type;
+ extern void varray_check_failed (varray_type, size_t, const char *, int, const char *) __attribute__ ((__noreturn__));
+ typedef ssa_use_operand_t *use_operand_p;
+ struct use_optype_d {
+ struct use_optype_d *next;
+ struct ssa_use_operand_d use_ptr;
+ };
+ typedef struct use_optype_d *use_optype_p;
+ struct ssa_operand_memory_d {
+ char mem[(2048 - sizeof (void *))];
+ };
+ struct stmt_operands_d {
+ struct use_optype_d * use_ops;
+ };
+ struct ptr_info_def {
+ tree name_mem_tag;
+ };
+ typedef struct subvar *subvar_t;
+ struct var_ann_d {
+ size_t uid;
+ };
+ struct stmt_ann_d {
+ unsigned modified : 1;
+ struct stmt_operands_d operands;
+ bitmap addresses_taken;
+ };
+ typedef struct var_ann_d *var_ann_t;
+ typedef struct stmt_ann_d *stmt_ann_t;
+ static __inline__ var_ann_t var_ann (tree t) {
+ }
+ static __inline__ stmt_ann_t stmt_ann (tree t) {
+ ((void)(!(is_gimple_stmt (t)) ? fancy_abort ("/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-flow-inline.h", 55, __FUNCTION__), 0 : 0));
+ return (stmt_ann_t) t->common.ann;
+ }
+ static __inline__ unsigned char stmt_modified_p (tree t) {
+ stmt_ann_t ann = stmt_ann (t);
+ return ann ? ann->modified : 1;
+ }
+ static __inline__ void delink_imm_use (ssa_use_operand_t *linknode) {
+ if (linknode->prev == ((void *)0)) return;
+ linknode->prev->next = linknode->next;
+ linknode->next->prev = linknode->prev;
+ linknode->prev = ((void *)0);
+ linknode->next = ((void *)0);
+ }
+ static __inline__ void link_imm_use_to_list (ssa_use_operand_t *linknode, ssa_use_operand_t *list) {
+ linknode->prev = list;
+ linknode->next = list->next;
+ list->next = linknode;
+ }
+ static __inline__ void link_imm_use (ssa_use_operand_t *linknode, tree def) {
+ ssa_use_operand_t *root;
+ if (!def || ((enum tree_code) (def)->common.code) != SSA_NAME) linknode->prev = ((void *)0);
+ else {
+ root = &(__extension__ ({ const tree __t = (def); if (((enum tree_code) (__t)->common.code) != (SSA_NAME)) tree_check_failed (__t, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-flow-inline.h", 222, __FUNCTION__, (SSA_NAME), 0); __t; }
+)->ssa_name.imm_uses);
+ link_imm_use_to_list (linknode, root);
+ }
+ }
+ static __inline__ void link_imm_use_stmt (ssa_use_operand_t *linknode, tree def, tree stmt) {
+ link_imm_use (linknode, def);
+ }
+ struct ggc_root_tab {
+ };
+ struct opbuild_list_d {
+ varray_type vars;
+ varray_type uid;
+ varray_type next;
+ int first;
+ unsigned num;
+ };
+ static struct opbuild_list_d build_uses;
+ static struct opbuild_list_d build_v_may_defs;
+ static struct ssa_operand_memory_d *operand_memory = ((void *)0);
+ static unsigned operand_memory_index;
+ static use_optype_p free_uses = ((void *)0);
+ static __inline__ int opbuild_next (struct opbuild_list_d *list, int prev) {
+ return __extension__ (*({
+ varray_type const _va = (list->next);
+ const size_t _n = (prev);
+ if (_n >= _va->num_elements) varray_check_failed (_va, _n, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 323, __FUNCTION__);
+ &_va->data.i[_n];
+ }
+));
+ }
+ static __inline__ tree * opbuild_elem_real (struct opbuild_list_d *list, int elem) {
+ return __extension__ (*({
+ varray_type const _va = (list->vars);
+ const size_t _n = (elem);
+ if (_n >= _va->num_elements) varray_check_failed (_va, _n, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 332, __FUNCTION__);
+ &_va->data.tp[_n];
+ }
+));
+ }
+ static __inline__ void opbuild_clear (struct opbuild_list_d *list) {
+ ((list->vars)->elements_used = 0);
+ ((list->next)->elements_used = 0);
+ }
+ static __inline__ void * ssa_operand_alloc (unsigned size) {
+ char *ptr;
+ if (operand_memory_index + size >= (2048 - sizeof (void *))) {
+ ptr = ggc_alloc_stat (sizeof (struct ssa_operand_memory_d) );
+ }
+ ptr = &(operand_memory->mem[operand_memory_index]);
+ return ptr;
+ }
+ static __inline__ void correct_use_link (use_operand_p ptr, tree stmt) {
+ use_operand_p prev;
+ tree root;
+ prev = ptr->prev;
+ if (prev) {
+ unsigned char stmt_mod = 1;
+ while (stmt_mod) { while (prev->stmt == stmt || prev->stmt == ((void *)0)) prev = prev->prev; if (prev->use == ((void *)0)) stmt_mod = 0; else if ((stmt_mod = stmt_modified_p (prev->stmt))) prev = prev->prev; }
+ if (prev->use == ((void *)0)) root = prev->stmt;
+ else root = *(prev->use);
+ if (root == *(ptr->use)) return;
+ }
+ delink_imm_use (ptr);
+ link_imm_use (ptr, *(ptr->use));
+ }
+ static __inline__ struct use_optype_d * alloc_use (void) {
+ struct use_optype_d *ret;
+ {
+ free_uses = free_uses->next;
+ }
+ ret = (struct use_optype_d *)ssa_operand_alloc (sizeof (struct use_optype_d));
+ return ret;
+ }
+ static __inline__ void finalize_ssa_use_ops (tree stmt) {
+ int new_i;
+ struct use_optype_d *old_ops, *ptr, *last;
+ tree * old_base;
+ struct use_optype_d new_list;
+ last = &new_list;
+ if (old_ops) old_base = ((old_ops)->use_ptr.use);
+ while (old_ops && new_i != -1) {
+ tree * new_base = opbuild_elem_real (&build_uses, (new_i));
+ if (old_base == new_base) { last->next = old_ops; last = old_ops; correct_use_link ((&((last)->use_ptr)), stmt); old_ops = old_ops->next; new_i = opbuild_next (&build_uses, new_i); }
+ else if (old_base < new_base) { use_operand_p use_p = (&((old_ops)->use_ptr)); delink_imm_use (use_p); old_ops = old_ops->next; ptr->next = free_uses; }
+ else { ptr = alloc_use (); (ptr)->use_ptr.use = (opbuild_elem_real (&build_uses, (new_i))); link_imm_use_stmt (&((ptr)->use_ptr), *(opbuild_elem_real (&build_uses, (new_i))), (stmt)); new_i = opbuild_next (&build_uses, new_i); }
+ if (old_ops) old_base = ((old_ops)->use_ptr.use);
+ }
+ for ( ;
+ new_i != -1;
+ new_i = opbuild_next (&build_uses, new_i)) {
+ ptr = alloc_use ();
+ (ptr)->use_ptr.use = (opbuild_elem_real (&build_uses, (new_i)));
+ link_imm_use_stmt (&((ptr)->use_ptr), *(opbuild_elem_real (&build_uses, (new_i))), (stmt));
+ }
+ {
+ { use_operand_p use_p = (&((ptr)->use_ptr)); delink_imm_use (use_p); }
+ }
+ (stmt_ann (stmt)->operands.use_ops) = new_list.next;
+ {
+ unsigned x = 0;
+ for (ptr = (stmt_ann (stmt)->operands.use_ops);
+ ptr;
+ ptr = ptr->next) x++;
+ }
+ }
+ finalize_ssa_uses (tree stmt) {
+ {
+ unsigned x;
+ ((void)(!(*(opbuild_elem_real (&build_uses, x)) != stmt) ? fancy_abort ("/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 581, __FUNCTION__), 0 : 0));
+ }
+ finalize_ssa_use_ops (stmt);
+ opbuild_clear (&build_uses);
+ }
+ finalize_ssa_v_may_def_ops (tree stmt) {
+ int new_i;
+ {
+ }
+ for ( ;
+ new_i != -1;
+ new_i = opbuild_next (&build_v_may_defs, new_i)) {
+ }
+ {
+ }
+ }
+ get_expr_operands (tree stmt, tree *expr_p, int flags) {
+ enum tree_code code;
+ tree expr = *expr_p;
+ {
+ { subvar_t svars; if (var_can_have_subvars (expr) && (svars = get_subvars_for_var (expr))) { } { } }
+ { { if (code == LT_EXPR || code == GE_EXPR) { swap_tree_operands (stmt, &__extension__ (*({const tree __t = __extension__ ({ const tree __t = (expr); char const __c = tree_code_type[(int) (((enum tree_code) (__t)->common.code))]; if (!((__c) >= tcc_reference && (__c) <= tcc_expression)) tree_class_check_failed (__t, tcc_expression, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1435, __FUNCTION__); __t; }); const int __i = (0); if (__i < 0 || __i >= tree_code_length[(int) (((enum tree_code) (__t)->common.code))]) tree_operand_check_failed (__i, ((enum tree_code) (__t)->common.code), "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1435, __FUNCTION__); &__t->exp.operands[__i]; })), &__extension__ (*({const tree __t = __extension__ ({ const tree __t = (expr); char const __c = tree_code_type[(int) (((enum tree_code) (__t)->common.code))]; if (!((__c) >= tcc_reference && (__c) <= tcc_expression)) tree_class_check_failed (__t, tcc_expression, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1436, __FUNCTION__); __t; }); const int __i = (1); if (__i < 0 || __i >= tree_code_length[(int) (((enum tree_code) (__t)->common.code))]) tree_operand_check_failed (__i, ((enum tree_code) (__t)->common.code), "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1436, __FUNCTION__); &__t->exp.operands[__i]; }))); } { } } }
+ }
+ }
+ get_asm_expr_operands (tree stmt) {
+ int noutputs = list_length (__extension__ (*({
+const tree __t = __extension__ ({ const tree __t = (__extension__ ({ const tree __t = (stmt); if (((enum tree_code) (__t)->common.code) != (ASM_EXPR)) tree_check_failed (__t, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1495, __FUNCTION__, (ASM_EXPR), 0); __t; })); char const __c = tree_code_type[(int) (((enum tree_code) (__t)->common.code))]; if (!((__c) >= tcc_reference && (__c) <= tcc_expression)) tree_class_check_failed (__t, tcc_expression, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1495, __FUNCTION__); __t; }
+);
+ const int __i = (1);
+ if (__i < 0 || __i >= tree_code_length[(int) (((enum tree_code) (__t)->common.code))]) tree_operand_check_failed (__i, ((enum tree_code) (__t)->common.code), "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1495, __FUNCTION__);
+ &__t->exp.operands[__i];
+ }
+)));
+ const char **oconstraints = (const char **) __builtin_alloca((noutputs) * sizeof (const char *));
+ int i;
+ tree link;
+ const char *constraint;
+ unsigned char allows_mem, allows_reg, is_inout;
+ {
+ oconstraints[i] = constraint = ((const char *)(__extension__ ({ const tree __t = ((__extension__ ({ const tree __t = ((__extension__ ({ const tree __t = (link); if (((enum tree_code) (__t)->common.code) != (TREE_LIST)) tree_check_failed (__t, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1506, __FUNCTION__, (TREE_LIST), 0); __t; })->list.purpose)); if (((enum tree_code) (__t)->common.code) != (TREE_LIST)) tree_check_failed (__t, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1506, __FUNCTION__, (TREE_LIST), 0); __t; })->list.value)); if (((enum tree_code) (__t)->common.code) != (STRING_CST)) tree_check_failed (__t, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1506, __FUNCTION__, (STRING_CST), 0); __t; }
+)->string.str));
+ parse_output_constraint (&constraint, i, 0, 0, &allows_mem, &allows_reg, &is_inout);
+ }
+ }
+ get_indirect_ref_operands (tree stmt, tree expr, int flags) {
+ tree *pptr = &__extension__ (*({
+const tree __t = __extension__ ({ const tree __t = (expr); char const __c = tree_code_type[(int) (((enum tree_code) (__t)->common.code))]; if (!((__c) >= tcc_reference && (__c) <= tcc_expression)) tree_class_check_failed (__t, tcc_expression, "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1591, __FUNCTION__); __t; }
+);
+ const int __i = (0);
+ if (__i < 0 || __i >= tree_code_length[(int) (((enum tree_code) (__t)->common.code))]) tree_operand_check_failed (__i, ((enum tree_code) (__t)->common.code), "/home/cygnus/dnovillo/gcc/src.ppc64/gcc/tree-ssa-operands.c", 1591, __FUNCTION__);
+ &__t->exp.operands[__i];
+ }
+));
+ tree ptr = *pptr;
+ {
+ struct ptr_info_def *pi = ((void *)0);
+ if (((enum tree_code) (ptr)->common.code) == SSA_NAME && pi->name_mem_tag) { }
+ }
+ }
+ note_addressable (tree var, stmt_ann_t s_ann) {
+ subvar_t svars;
+ {
+ if (var_can_have_subvars (var) && (svars = get_subvars_for_var (var))) bitmap_set_bit (s_ann->addresses_taken, var_ann (var)->uid);
+ }
+ }
+ const struct ggc_root_tab gt_ggc_r_gt_tree_ssa_operands_h[] = {
+ {
+ &operand_memory, }
+, {
+ }
+, {
+ }
+, {
+ }
+, };
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