https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94726
Bug ID: 94726
Summary: internal compiler error: in uniform_vector_p, at
tree.c:11214
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: anbu1024.me at gmail dot com
Target Milestone: ---
$ cat reduced.c
typedef unsigned int type __attribute__ ( ( vector_size ( 8 ) ) ) ;
type a , b;
void foo ( void ) {
type var = { 2 , 2 } ;
b = __builtin_shuffle ( a , var ) ;
}
void * a [ ] = { } ;
--------------------------------------------------------------------------------
$ gcc-10 --version
gcc (GCC) 10.0.1 20200419 (experimental)
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
--------------------------------------------------------------------------------
$ gcc-10 reduced.c
reduced.c:12:8: error: conflicting types for ‘a’
12 | void * a [ ] = { } ;
| ^
reduced.c:4:6: note: previous declaration of ‘a’ was here
4 | type a , b;
| ^
reduced.c: In function ‘foo’:
reduced.c:8:6: internal compiler error: in uniform_vector_p, at tree.c:11214
8 | b = __builtin_shuffle ( a , var ) ;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x736228 uniform_vector_p(tree_node const*)
../../gcc-10-20200419/gcc/tree.c:11214
0x1184786 gimple_vec_same_elem_p(tree_node*, tree_node* (*)(tree_node*))
/home/john/Documents/fuzz/gcc/10-20200419/build/gcc/gimple-match.c:1002
0x12ab6ca gimple_simplify_VEC_PERM_EXPR
/home/john/Documents/fuzz/gcc/10-20200419/build/gcc/gimple-match.c:122872
0x1188bca gimple_resimplify3
../../gcc-10-20200419/gcc/gimple-match-head.c:394
0x11d49aa gimple_simplify(gimple*, gimple_match_op*, gimple**, tree_node*
(*)(tree_node*), tree_node* (*)(tree_node*))
../../gcc-10-20200419/gcc/gimple-match-head.c:1059
0xad0b2f fold_stmt_1
../../gcc-10-20200419/gcc/gimple-fold.c:5087
0xb14771 gimplify_modify_expr
../../gcc-10-20200419/gcc/gimplify.c:5942
0xafd53c gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc-10-20200419/gcc/gimplify.c:13608
0xb00bd6 gimplify_stmt(tree_node**, gimple**)
../../gcc-10-20200419/gcc/gimplify.c:6825
0xb03327 gimplify_and_add(tree_node*, gimple**)
../../gcc-10-20200419/gcc/gimplify.c:486
0xb03327 internal_get_tmp_var
../../gcc-10-20200419/gcc/gimplify.c:642
0xafc8ff get_formal_tmp_var(tree_node*, gimple**)
../../gcc-10-20200419/gcc/gimplify.c:663
0xafc8ff gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc-10-20200419/gcc/gimplify.c:14609
0xb14595 gimplify_modify_expr
../../gcc-10-20200419/gcc/gimplify.c:5792
0xafd53c gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc-10-20200419/gcc/gimplify.c:13608
0xb00bd6 gimplify_stmt(tree_node**, gimple**)
../../gcc-10-20200419/gcc/gimplify.c:6825
0xafe48b gimplify_statement_list
../../gcc-10-20200419/gcc/gimplify.c:1869
0xafe48b gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
../../gcc-10-20200419/gcc/gimplify.c:14052
0xb00bd6 gimplify_stmt(tree_node**, gimple**)
../../gcc-10-20200419/gcc/gimplify.c:6825
0xb0199b gimplify_bind_expr
../../gcc-10-20200419/gcc/gimplify.c:1424
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
--------------------------------------------------------------------------------
$ gcc-9 --version
gcc (GCC) 9.2.1 20191102
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
--------------------------------------------------------------------------------
$ gcc-9 reduced.c
reduced.c:12:8: error: conflicting types for ‘a’
12 | void * a [ ] = { } ;
| ^
reduced.c:4:6: note: previous declaration of ‘a’ was here
4 | type a , b;
| ^
