diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 12 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 3 | ||||
| -rw-r--r-- | gcc/config/mips/mips.h | 7 | ||||
| -rw-r--r-- | gcc/dwarf2out.c | 24 | ||||
| -rw-r--r-- | gcc/rtl.h | 3 |
5 files changed, 42 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 87e216b..7eb9437 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,15 @@ +2012-12-10 Steve Ellcey <sellcey@mips.com> + + PR target/54061 + rtl.h (IGNORED_DWARF_REGNUM): New. + * dwarf2out.c (reg_loc_descriptor): Check for IGNORED_DWARF_REGNUM. + (mem_loc_descriptor): Ditto. + * config/mips/mips.h (ALL_COP_REG_FIRST): New. + (ALL_COP_REG_LAST): New. + (ALL_COP_REG_NUM): Redefine using above macros. + * config/mips/mips.c (mips_option_override): Set mips_dbx_regno + coprocessor entries to IGNORED_DWARF_REGNUM. + 2012-12-10 H.J. Lu <hongjiu.lu@intel.com> PR lto/55466 diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index b6a2290..820b228 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -16757,6 +16757,9 @@ mips_option_override (void) for (i = FP_REG_FIRST; i <= FP_REG_LAST; i++) mips_dbx_regno[i] = i + start; + for (i = ALL_COP_REG_FIRST; i <= ALL_COP_REG_LAST; i++) + mips_dbx_regno[i] = IGNORED_DWARF_REGNUM; + /* Accumulator debug registers use big-endian ordering. */ mips_dbx_regno[HI_REGNUM] = MD_DBX_FIRST + 0; mips_dbx_regno[LO_REGNUM] = MD_DBX_FIRST + 1; diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h index 308b59b..60b26cb 100644 --- a/gcc/config/mips/mips.h +++ b/gcc/config/mips/mips.h @@ -1641,8 +1641,11 @@ struct mips_cpu_info { #define COP3_REG_FIRST 144 #define COP3_REG_LAST 175 #define COP3_REG_NUM (COP3_REG_LAST - COP3_REG_FIRST + 1) -/* ALL_COP_REG_NUM assumes that COP0,2,and 3 are numbered consecutively. */ -#define ALL_COP_REG_NUM (COP3_REG_LAST - COP0_REG_FIRST + 1) + +/* These definitions assume that COP0, 2 and 3 are numbered consecutively. */ +#define ALL_COP_REG_FIRST COP0_REG_FIRST +#define ALL_COP_REG_LAST COP3_REG_LAST +#define ALL_COP_REG_NUM (ALL_COP_REG_LAST - ALL_COP_REG_FIRST + 1) #define DSP_ACC_REG_FIRST 176 #define DSP_ACC_REG_LAST 181 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))) @@ -2439,6 +2439,9 @@ extern rtx gen_rtx_MEM (enum machine_mode, rtx); /* REGNUM never really appearing in the INSN stream. */ #define INVALID_REGNUM (~(unsigned int) 0) +/* REGNUM for which no debug information can be generated. */ +#define IGNORED_DWARF_REGNUM (INVALID_REGNUM - 1) + extern rtx output_constant_def (tree, int); extern rtx lookup_constant_def (tree); |