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dwarf2out.c (build_cfa_loc): Correct to use DW_OP_regx or DW_OP_bregx when cfa->reg > 31.

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* dwarf2out.c (build_cfa_loc): Correct to use DW_OP_regx or
	DW_OP_bregx when cfa->reg > 31.

	* frame-dwarf2.c (decode_stack_op) [case DW_OP_regx]: Add missing
	break.

From-SVN: r36757
This commit is contained in:
Hans-Peter Nilsson 2000-10-06 11:37:31 +00:00 committed by Hans-Peter Nilsson
parent 903cef853f
commit f299afab9b
3 changed files with 18 additions and 2 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2000-10-06 Hans-Peter Nilsson <hp@bitrange.com>
* dwarf2out.c (build_cfa_loc): Correct to use DW_OP_regx or
DW_OP_bregx when cfa->reg > 31.
* frame-dwarf2.c (decode_stack_op) [case DW_OP_regx]: Add missing
break.
2000-10-05 Richard Henderson <rth@cygnus.com>
* c-decl.c (warn_missing_noreturn): Remove.

11
gcc/dwarf2out.c
View File

@ -2827,9 +2827,16 @@ build_cfa_loc (cfa)
abort ();
if (cfa->base_offset)
head = new_loc_descr (DW_OP_breg0 + cfa->reg, cfa->base_offset, 0);
else
{
if (cfa->reg <= 31)
head = new_loc_descr (DW_OP_breg0 + cfa->reg, cfa->base_offset, 0);
else
head = new_loc_descr (DW_OP_bregx, cfa->reg, cfa->base_offset);
}
else if (cfa->reg <= 31)
head = new_loc_descr (DW_OP_reg0 + cfa->reg, 0, 0);
else
head = new_loc_descr (DW_OP_regx, cfa->reg, 0);
head->dw_loc_oprnd1.val_class = dw_val_class_const;
tmp = new_loc_descr (DW_OP_deref, 0, 0);
add_loc_descr (&head, tmp);

1
gcc/frame-dwarf2.c
View File

@ -514,6 +514,7 @@ decode_stack_op (unsigned char *buf, struct frame_state *state)
case DW_OP_regx:
buf = decode_sleb128 (buf, &offset);
state->cfa_reg = offset;
break;
case DW_OP_breg0:
case DW_OP_breg1:
case DW_OP_breg2: