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re PR debug/64663 (ICE at -O1 and above with -g enabled on x86_64-linux-gnu)

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PR debug/64663
	* dwarf2out.c (decl_piece_node): Don't put bitsize into
	mode if bitsize <= 0.
	(decl_piece_bitsize, adjust_piece_list, add_var_loc_to_decl,
	dw_sra_loc_expr): Use HOST_WIDE_INT instead of int for bit
	sizes and positions.

	* gcc.dg/pr64663.c: New test.

From-SVN: r219906
This commit is contained in:
Jakub Jelinek 2015-01-20 19:29:58 +01:00 committed by Jakub Jelinek
parent 73cb399d51
commit 17cb42833c
4 changed files with 39 additions and 8 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2015-01-20 Jakub Jelinek <jakub@redhat.com>
PR debug/64663
* dwarf2out.c (decl_piece_node): Don't put bitsize into
mode if bitsize <= 0.
(decl_piece_bitsize, adjust_piece_list, add_var_loc_to_decl,
dw_sra_loc_expr): Use HOST_WIDE_INT instead of int for bit
sizes and positions.
2015-01-20 Chung-Lin Tang <cltang@codesourcery.com>
* config/nios2/nios2.c (nios2_asm_file_end): Implement

16
gcc/dwarf2out.c
View File

@ -5062,7 +5062,7 @@ equate_decl_number_to_die (tree decl, dw_die_ref decl_die)
/* Return how many bits covers PIECE EXPR_LIST. */
static int
static HOST_WIDE_INT
decl_piece_bitsize (rtx piece)
{
int ret = (int) GET_MODE (piece);
@ -5090,7 +5090,7 @@ decl_piece_varloc_ptr (rtx piece)
static rtx_expr_list *
decl_piece_node (rtx loc_note, HOST_WIDE_INT bitsize, rtx next)
{
if (bitsize <= (int) MAX_MACHINE_MODE)
if (bitsize > 0 && bitsize <= (int) MAX_MACHINE_MODE)
return alloc_EXPR_LIST (bitsize, loc_note, next);
else
return alloc_EXPR_LIST (0, gen_rtx_CONCAT (VOIDmode,
@ -5129,7 +5129,7 @@ adjust_piece_list (rtx *dest, rtx *src, rtx *inner,
HOST_WIDE_INT bitpos, HOST_WIDE_INT piece_bitpos,
HOST_WIDE_INT bitsize, rtx loc_note)
{
int diff;
HOST_WIDE_INT diff;
bool copy = inner != NULL;
if (copy)
@ -5269,7 +5269,7 @@ add_var_loc_to_decl (tree decl, rtx loc_note, const char *label)
{
struct var_loc_node *last = temp->last, *unused = NULL;
rtx *piece_loc = NULL, last_loc_note;
int piece_bitpos = 0;
HOST_WIDE_INT piece_bitpos = 0;
if (last->next)
{
last = last->next;
@ -5280,7 +5280,7 @@ add_var_loc_to_decl (tree decl, rtx loc_note, const char *label)
piece_loc = &last->loc;
do
{
int cur_bitsize = decl_piece_bitsize (*piece_loc);
HOST_WIDE_INT cur_bitsize = decl_piece_bitsize (*piece_loc);
if (piece_bitpos + cur_bitsize > bitpos)
break;
piece_bitpos += cur_bitsize;
@ -13924,7 +13924,7 @@ static dw_loc_descr_ref
dw_sra_loc_expr (tree decl, rtx loc)
{
rtx p;
unsigned int padsize = 0;
unsigned HOST_WIDE_INT padsize = 0;
dw_loc_descr_ref descr, *descr_tail;
unsigned HOST_WIDE_INT decl_size;
rtx varloc;
@ -13940,11 +13940,11 @@ dw_sra_loc_expr (tree decl, rtx loc)
for (p = loc; p; p = XEXP (p, 1))
{
unsigned int bitsize = decl_piece_bitsize (p);
unsigned HOST_WIDE_INT bitsize = decl_piece_bitsize (p);
rtx loc_note = *decl_piece_varloc_ptr (p);
dw_loc_descr_ref cur_descr;
dw_loc_descr_ref *tail, last = NULL;
unsigned int opsize = 0;
unsigned HOST_WIDE_INT opsize = 0;
if (loc_note == NULL_RTX
|| NOTE_VAR_LOCATION_LOC (loc_note) == NULL_RTX)

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2015-01-20 Jakub Jelinek <jakub@redhat.com>
PR debug/64663
* gcc.dg/pr64663.c: New test.
2015-01-20 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/64383

17
gcc/testsuite/gcc.dg/pr64663.c Normal file
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@ -0,0 +1,17 @@
/* PR debug/64663 */
/* { dg-do compile } */
/* { dg-options "-O2 -g -w" } */
void
foo (void)
{
int a[9];
a[-8] = 0;
}
void
bar (void)
{
int a[9];
a[-9] = 0;
}