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rtl.def (SYMBOL_REF): Remove middle "0" field. 

gcc/
	* rtl.def (SYMBOL_REF): Remove middle "0" field.
	* rtl.h (block_symbol): Reduce number of fields to 2.
	(rtx_def): Add u2.symbol_ref_flags.
	(SYMBOL_REF_FLAGS): Use it.
	(SYMBOL_REF_DATA, SET_SYMBOL_REF_DECL, SYMBOL_REF_DECL)
	(SET_SYMBOL_REF_CONSTANT, SYMBOL_REF_CONSTANT): Lower index.
	* gengtype.c (adjust_field_rtx_def): Remove SYMBOL_REF_FLAGS handling.
	Lower index of SYMBOL_REF_DATA.
	* print-rtl.c (print_rtx): Lower index for SYMBOL_REF_DATA.
	Print SYMBOL_REF_FLAGS at the same time.
	* genattrtab.c (attr_rtx_1): Only initialize 1 "0" SYMBOL_REF field.

From-SVN: r210363
This commit is contained in:
Richard Sandiford 2014-05-13 10:39:16 +00:00 committed by Richard Sandiford
parent fcc74520d0
commit da3cd11361
6 changed files with 29 additions and 19 deletions
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14
gcc/ChangeLog
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@ -1,3 +1,17 @@
2014-05-13 Richard Sandiford <rdsandiford@googlemail.com>
* rtl.def (SYMBOL_REF): Remove middle "0" field.
* rtl.h (block_symbol): Reduce number of fields to 2.
(rtx_def): Add u2.symbol_ref_flags.
(SYMBOL_REF_FLAGS): Use it.
(SYMBOL_REF_DATA, SET_SYMBOL_REF_DECL, SYMBOL_REF_DECL)
(SET_SYMBOL_REF_CONSTANT, SYMBOL_REF_CONSTANT): Lower index.
* gengtype.c (adjust_field_rtx_def): Remove SYMBOL_REF_FLAGS handling.
Lower index of SYMBOL_REF_DATA.
* print-rtl.c (print_rtx): Lower index for SYMBOL_REF_DATA.
Print SYMBOL_REF_FLAGS at the same time.
* genattrtab.c (attr_rtx_1): Only initialize 1 "0" SYMBOL_REF field.
2014-05-13 Richard Sandiford <rdsandiford@googlemail.com>
* rtl.def (VAR_LOCATION): Remove "i" field.

5
gcc/genattrtab.c
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@ -473,10 +473,7 @@ attr_rtx_1 (enum rtx_code code, va_list p)
rt_val = rtx_alloc (code);
XSTR (rt_val, 0) = arg0;
if (code == SYMBOL_REF)
{
X0EXP (rt_val, 1) = NULL_RTX;
X0EXP (rt_val, 2) = NULL_RTX;
}
X0EXP (rt_val, 1) = NULL_RTX;
}
}
else if (GET_RTX_LENGTH (code) == 2

2
gcc/gengtype.c
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@ -1250,8 +1250,6 @@ adjust_field_rtx_def (type_p t, options_p ARG_UNUSED (opt))
else if (i == REG && aindex == 1)
t = reg_attrs_tp, subname = "rt_reg";
else if (i == SYMBOL_REF && aindex == 1)
t = scalar_tp, subname = "rt_int";
else if (i == SYMBOL_REF && aindex == 2)
t = symbol_union_tp, subname = "";
else if (i == JUMP_TABLE_DATA && aindex >= 4)
t = scalar_tp, subname = "rt_int";

3
gcc/print-rtl.c
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@ -224,9 +224,6 @@ print_rtx (const_rtx in_rtx)
int flags = SYMBOL_REF_FLAGS (in_rtx);
if (flags)
fprintf (outfile, " [flags %#x]", flags);
}
else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF)
{
tree decl = SYMBOL_REF_DECL (in_rtx);
if (decl)
print_node_brief (outfile, "", decl, dump_flags);

5
gcc/rtl.def
View File

@ -429,10 +429,9 @@ DEF_RTL_EXPR(LABEL_REF, "label_ref", "u", RTX_CONST_OBJ)
/* Reference to a named label:
Operand 0: label name
Operand 1: flags (see SYMBOL_FLAG_* in rtl.h)
Operand 2: tree from which this symbol is derived, or null.
Operand 1: tree from which this symbol is derived, or null.
This is either a DECL node, or some kind of constant. */
DEF_RTL_EXPR(SYMBOL_REF, "symbol_ref", "s00", RTX_CONST_OBJ)
DEF_RTL_EXPR(SYMBOL_REF, "symbol_ref", "s0", RTX_CONST_OBJ)
/* The condition code register is represented, in our imagination,
as a register holding a value that can be compared to zero.

19
gcc/rtl.h
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@ -211,7 +211,7 @@ union rtunion
if SYMBOL_REF_HAS_BLOCK_INFO_P is true. */
struct GTY(()) block_symbol {
/* The usual SYMBOL_REF fields. */
rtunion GTY ((skip)) fld[3];
rtunion GTY ((skip)) fld[2];
/* The block that contains this object. */
struct object_block *block;
@ -362,6 +362,9 @@ struct GTY((chain_next ("RTX_NEXT (&%h)"),
/* The INSN_UID of an RTX_INSN-class code. */
int insn_uid;
/* The SYMBOL_REF_FLAGS of a SYMBOL_REF. */
unsigned int symbol_ref_flags;
/* The PAT_VAR_LOCATION_STATUS of a VAR_LOCATION. */
enum var_init_status var_location_status;
@ -1765,24 +1768,24 @@ do { \
/* A pointer attached to the SYMBOL_REF; either SYMBOL_REF_DECL or
SYMBOL_REF_CONSTANT. */
#define SYMBOL_REF_DATA(RTX) X0ANY ((RTX), 2)
#define SYMBOL_REF_DATA(RTX) X0ANY ((RTX), 1)
/* Set RTX's SYMBOL_REF_DECL to DECL. RTX must not be a constant
pool symbol. */
#define SET_SYMBOL_REF_DECL(RTX, DECL) \
(gcc_assert (!CONSTANT_POOL_ADDRESS_P (RTX)), X0TREE ((RTX), 2) = (DECL))
(gcc_assert (!CONSTANT_POOL_ADDRESS_P (RTX)), X0TREE ((RTX), 1) = (DECL))
/* The tree (decl or constant) associated with the symbol, or null. */
#define SYMBOL_REF_DECL(RTX) \
(CONSTANT_POOL_ADDRESS_P (RTX) ? NULL : X0TREE ((RTX), 2))
(CONSTANT_POOL_ADDRESS_P (RTX) ? NULL : X0TREE ((RTX), 1))
/* Set RTX's SYMBOL_REF_CONSTANT to C. RTX must be a constant pool symbol. */
#define SET_SYMBOL_REF_CONSTANT(RTX, C) \
(gcc_assert (CONSTANT_POOL_ADDRESS_P (RTX)), X0CONSTANT ((RTX), 2) = (C))
(gcc_assert (CONSTANT_POOL_ADDRESS_P (RTX)), X0CONSTANT ((RTX), 1) = (C))
/* The rtx constant pool entry for a symbol, or null. */
#define SYMBOL_REF_CONSTANT(RTX) \
(CONSTANT_POOL_ADDRESS_P (RTX) ? X0CONSTANT ((RTX), 2) : NULL)
(CONSTANT_POOL_ADDRESS_P (RTX) ? X0CONSTANT ((RTX), 1) : NULL)
/* A set of flags on a symbol_ref that are, in some respects, redundant with
information derivable from the tree decl associated with this symbol.
@ -1791,7 +1794,9 @@ do { \
this information to avoid recomputing it. Finally, this allows space for
the target to store more than one bit of information, as with
SYMBOL_REF_FLAG. */
#define SYMBOL_REF_FLAGS(RTX) X0INT ((RTX), 1)
#define SYMBOL_REF_FLAGS(RTX) \
(RTL_FLAG_CHECK1 ("SYMBOL_REF_FLAGS", (RTX), SYMBOL_REF) \
->u2.symbol_ref_flags)
/* These flags are common enough to be defined for all targets. They
are computed by the default version of targetm.encode_section_info. */