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| author | Jakub Jelinek <jakub@redhat.com> | 2016-10-31 18:22:30 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-10-31 18:22:30 +0100 |
| commit | 25f409344c22aedf9eb2d939b79d8750d0b00163 (patch) | |
| tree | 4fdf7d74500707383ec007d4471abc28e37b3042 /gcc/dwarf2out.c | |
| parent | 7786b6aca266876a3a8fbed7c180f17741d6ce61 (diff) | |
| download | gcc-25f409344c22aedf9eb2d939b79d8750d0b00163.zip gcc-25f409344c22aedf9eb2d939b79d8750d0b00163.tar.gz gcc-25f409344c22aedf9eb2d939b79d8750d0b00163.tar.bz2 | |
dwarf2out.c (DWARF_LARGEST_DATA_FORM_BITS): Define.
* dwarf2out.c (DWARF_LARGEST_DATA_FORM_BITS): Define.
(size_of_die, value_format, output_die): Use
DW_FORM_data16 for 128-bit dw_val_class_const_double or
dw_val_class_wide_int.
From-SVN: r241714
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index 8c646a0..533a657 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -1517,6 +1517,12 @@ loc_list_plus_const (dw_loc_list_ref list_head, HOST_WIDE_INT offset) #define DWARF_REF_SIZE \ (dwarf_version == 2 ? DWARF2_ADDR_SIZE : DWARF_OFFSET_SIZE) +/* The number of bits that can be encoded by largest DW_FORM_dataN. + In DWARF4 and earlier it is DW_FORM_data8 with 64 bits, in DWARF5 + DW_FORM_data16 with 128 bits. */ +#define DWARF_LARGEST_DATA_FORM_BITS \ + (dwarf_version >= 5 ? 128 : 64) + /* Utility inline function for construction of ops that were GNU extension before DWARF 5. */ static inline enum dwarf_location_atom @@ -8755,14 +8761,14 @@ size_of_die (dw_die_ref die) break; case dw_val_class_const_double: size += HOST_BITS_PER_DOUBLE_INT / HOST_BITS_PER_CHAR; - if (HOST_BITS_PER_WIDE_INT >= 64) + if (HOST_BITS_PER_WIDE_INT >= DWARF_LARGEST_DATA_FORM_BITS) size++; /* block */ break; case dw_val_class_wide_int: size += (get_full_len (*a->dw_attr_val.v.val_wide) * HOST_BITS_PER_WIDE_INT / HOST_BITS_PER_CHAR); - if (get_full_len (*a->dw_attr_val.v.val_wide) * HOST_BITS_PER_WIDE_INT - > 64) + if (get_full_len (*a->dw_attr_val.v.val_wide) + * HOST_BITS_PER_WIDE_INT > DWARF_LARGEST_DATA_FORM_BITS) size++; /* block */ break; case dw_val_class_vec: @@ -9147,6 +9153,9 @@ value_format (dw_attr_node *a) case 32: return DW_FORM_data8; case 64: + if (dwarf_version >= 5) + return DW_FORM_data16; + /* FALLTHRU */ default: return DW_FORM_block1; } @@ -9161,6 +9170,10 @@ value_format (dw_attr_node *a) return DW_FORM_data4; case 64: return DW_FORM_data8; + case 128: + if (dwarf_version >= 5) + return DW_FORM_data16; + /* FALLTHRU */ default: return DW_FORM_block1; } @@ -9634,7 +9647,7 @@ output_die (dw_die_ref die) { unsigned HOST_WIDE_INT first, second; - if (HOST_BITS_PER_WIDE_INT >= 64) + if (HOST_BITS_PER_WIDE_INT >= DWARF_LARGEST_DATA_FORM_BITS) dw2_asm_output_data (1, HOST_BITS_PER_DOUBLE_INT / HOST_BITS_PER_CHAR, @@ -9663,9 +9676,9 @@ output_die (dw_die_ref die) int i; int len = get_full_len (*a->dw_attr_val.v.val_wide); int l = HOST_BITS_PER_WIDE_INT / HOST_BITS_PER_CHAR; - if (len * HOST_BITS_PER_WIDE_INT > 64) - dw2_asm_output_data (1, get_full_len (*a->dw_attr_val.v.val_wide) * l, - NULL); + if (len * HOST_BITS_PER_WIDE_INT > DWARF_LARGEST_DATA_FORM_BITS) + dw2_asm_output_data (1, get_full_len (*a->dw_attr_val.v.val_wide) + * l, NULL); if (WORDS_BIG_ENDIAN) for (i = len - 1; i >= 0; --i) |