diff --git a/gcc/gimple-fold.cc b/gcc/gimple-fold.cc index 2d6e2074416f5a8b625b8f50a3835e9de459cf68..b0353de7815862634b330e6fe774955dae32edf3 100644 --- a/gcc/gimple-fold.cc +++ b/gcc/gimple-fold.cc @@ -9707,9 +9707,8 @@ fold_array_ctor_reference (tree type, tree ctor, constructor_elt *elt = CONSTRUCTOR_ELT (ctor, ctor_idx); if (elt->index == NULL_TREE || TREE_CODE (elt->index) != INTEGER_CST) return NULL_TREE; - *suboff += access_index.to_uhwi () * BITS_PER_UNIT; unsigned o = (access_index - wi::to_offset (elt->index)).to_uhwi (); - return build_int_cst (TREE_TYPE (val), RAW_DATA_UCHAR_ELT (val, o)); + val = build_int_cst (TREE_TYPE (val), RAW_DATA_UCHAR_ELT (val, o)); } if (!size && TREE_CODE (val) != CONSTRUCTOR) { diff --git a/gcc/testsuite/c-c++-common/cpp/embed-29.c b/gcc/testsuite/c-c++-common/cpp/embed-29.c new file mode 100644 index 0000000000000000000000000000000000000000..0c524ef7abc4769e1d2f8202f2e977eabd10d1cf --- /dev/null +++ b/gcc/testsuite/c-c++-common/cpp/embed-29.c @@ -0,0 +1,17 @@ +/* PR tree-optimization/118207 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +struct A { unsigned char a; }; +struct B { struct A b; }; +static const unsigned char c[] = { +#embed __FILE__ +}; +struct B d; + +void +foo () +{ + const struct B *t = (const struct B *) &c; + d.b = t->b; +} diff --git a/gcc/testsuite/gcc.dg/pr118207.c b/gcc/testsuite/gcc.dg/pr118207.c new file mode 100644 index 0000000000000000000000000000000000000000..6366721ae2579aa4a087724ff8c1784ebaa9364f --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr118207.c @@ -0,0 +1,25 @@ +/* PR tree-optimization/118207 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +struct A { unsigned char a; }; +struct B { struct A b; }; +static const unsigned char c[160] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }; +struct B d; + +void +foo () +{ + const struct B *t = (const struct B *) &c; + d.b = t->b; +}