diff options
Diffstat (limited to 'gcc/dwarf2out.c')
| -rw-r--r-- | gcc/dwarf2out.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c index f0256ae..c92fa4b 100644 --- a/gcc/dwarf2out.c +++ b/gcc/dwarf2out.c @@ -10499,7 +10499,12 @@ reg_loc_descriptor (rtx rtl, enum var_init_status initialized) if (hard_regno_nregs[REGNO (rtl)][GET_MODE (rtl)] > 1 || regs) return multiple_reg_loc_descriptor (rtl, regs, initialized); else - return one_reg_loc_descriptor (dbx_reg_number (rtl), initialized); + { + unsigned int dbx_regnum = dbx_reg_number (rtl); + if (dbx_regnum == IGNORED_DWARF_REGNUM) + return 0; + return one_reg_loc_descriptor (dbx_regnum, initialized); + } } /* Return a location descriptor that designates a machine register for @@ -11926,6 +11931,7 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode, )) { dw_die_ref type_die; + unsigned int dbx_regnum; if (dwarf_strict) break; @@ -11935,8 +11941,12 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode, GET_MODE_CLASS (mode) == MODE_INT); if (type_die == NULL) break; + + dbx_regnum = dbx_reg_number (rtl); + if (dbx_regnum == IGNORED_DWARF_REGNUM) + break; mem_loc_result = new_loc_descr (DW_OP_GNU_regval_type, - dbx_reg_number (rtl), 0); + dbx_regnum, 0); mem_loc_result->dw_loc_oprnd2.val_class = dw_val_class_die_ref; mem_loc_result->dw_loc_oprnd2.v.val_die_ref.die = type_die; mem_loc_result->dw_loc_oprnd2.v.val_die_ref.external = 0; @@ -12138,9 +12148,13 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode, op0 = mem_loc_descriptor (ENTRY_VALUE_EXP (rtl), mode, VOIDmode, VAR_INIT_STATUS_INITIALIZED); else - op0 - = one_reg_loc_descriptor (dbx_reg_number (ENTRY_VALUE_EXP (rtl)), - VAR_INIT_STATUS_INITIALIZED); + { + unsigned int dbx_regnum = dbx_reg_number (ENTRY_VALUE_EXP (rtl)); + if (dbx_regnum == IGNORED_DWARF_REGNUM) + return NULL; + op0 = one_reg_loc_descriptor (dbx_regnum, + VAR_INIT_STATUS_INITIALIZED); + } } else if (MEM_P (ENTRY_VALUE_EXP (rtl)) && REG_P (XEXP (ENTRY_VALUE_EXP (rtl), 0))) |