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re PR target/54061 (gcc.c-torture/compile/mipscop-*.c ICEs with -g) 

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.

From-SVN: r194372
This commit is contained in:
Steve Ellcey 2012-12-10 22:19:16 +00:00 committed by Steve Ellcey
parent 4d63a95eec
commit 2cd45f0e68
5 changed files with 42 additions and 7 deletions
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12
gcc/ChangeLog
View File

@ -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

3
gcc/config/mips/mips.c
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@ -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;

7
gcc/config/mips/mips.h
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@ -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

24
gcc/dwarf2out.c
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@ -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)))

3
gcc/rtl.h
View File

@ -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);