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rtl.def (REG): Remove middle field.

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gcc/
	* rtl.def (REG): Remove middle field.
	* rtl.h (rtx_def): Add orignal_regno to u2.
	(ORIGINAL_REGNO): Use it instead of field 1.
	(REG_ATTRS): Lower field index accordingly.
	* gengtype.c (adjust_field_rtx_def): Remove handling of
	ORIGINAL_REGNO.  Move REG_ATTRS index down.
	* print-rtl.c (print_rtx): Move ORIGINAL_REGNO handling to the
	code that prints the REGNO.

From-SVN: r210359
This commit is contained in:
Richard Sandiford 2014-05-13 10:38:38 +00:00 committed by Richard Sandiford
parent 925c1bae48
commit fccc55155d
5 changed files with 22 additions and 14 deletions
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11
gcc/ChangeLog
View File

@ -1,3 +1,14 @@
2014-05-13 Richard Sandiford <rdsandiford@googlemail.com>
* rtl.def (REG): Remove middle field.
* rtl.h (rtx_def): Add orignal_regno to u2.
(ORIGINAL_REGNO): Use it instead of field 1.
(REG_ATTRS): Lower field index accordingly.
* gengtype.c (adjust_field_rtx_def): Remove handling of
ORIGINAL_REGNO. Move REG_ATTRS index down.
* print-rtl.c (print_rtx): Move ORIGINAL_REGNO handling to the
code that prints the REGNO.
2014-05-13 Richard Sandiford <rdsandiford@googlemail.com>
* print-rtl.c (print_rtx): Guard whole '0' block with ifndef

2
gcc/gengtype.c
View File

@ -1248,8 +1248,6 @@ adjust_field_rtx_def (type_p t, options_p ARG_UNUSED (opt))
else if (i == DEBUG_EXPR && aindex == 0)
t = tree_tp, subname = "rt_tree";
else if (i == REG && aindex == 1)
t = scalar_tp, subname = "rt_int";
else if (i == REG && aindex == 2)
t = reg_attrs_tp, subname = "rt_reg";
else if (i == SCRATCH && aindex == 0)
t = scalar_tp, subname = "rt_int";

9
gcc/print-rtl.c
View File

@ -216,12 +216,7 @@ print_rtx (const_rtx in_rtx)
that the field has several different valid contents. */
case '0':
#ifndef GENERATOR_FILE
if (i == 1 && REG_P (in_rtx))
{
if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
}
else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
{
int flags = SYMBOL_REF_FLAGS (in_rtx);
if (flags)
@ -491,6 +486,8 @@ print_rtx (const_rtx in_rtx)
REG_OFFSET (in_rtx));
fputs (" ]", outfile);
}
if (REG_P (in_rtx) && REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx))
fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
#endif
if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i)

6
gcc/rtl.def
View File

@ -378,12 +378,10 @@ DEF_RTL_EXPR(PC, "pc", "", RTX_OBJ)
/* A register. The "operand" is the register number, accessed with
the REGNO macro. If this number is less than FIRST_PSEUDO_REGISTER
than a hardware register is being referred to. The second operand
holds the original register number - this will be different for a
pseudo register that got turned into a hard register. The third
operand points to a reg_attrs structure.
points to a reg_attrs structure.
This rtx needs to have as many (or more) fields as a MEM, since we
can change REG rtx's into MEMs during reload. */
DEF_RTL_EXPR(REG, "reg", "i00", RTX_OBJ)
DEF_RTL_EXPR(REG, "reg", "i0", RTX_OBJ)
/* A scratch register. This represents a register used only within a
single insn. It will be turned into a REG during register allocation

8
gcc/rtl.h
View File

@ -352,6 +352,9 @@ struct GTY((chain_next ("RTX_NEXT (&%h)"),
layout for that case and use the gap for extra code-specific
information. */
/* The ORIGINAL_REGNO of a REG. */
unsigned int original_regno;
/* In a CONST_WIDE_INT (aka hwivec_def), this is the number of
HOST_WIDE_INTs in the hwivec_def. */
unsigned int num_elem;
@ -1194,7 +1197,8 @@ enum label_kind
/* ORIGINAL_REGNO holds the number the register originally had; for a
pseudo register turned into a hard reg this will hold the old pseudo
register number. */
#define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1)
#define ORIGINAL_REGNO(RTX) \
(RTL_FLAG_CHECK1 ("ORIGINAL_REGNO", (RTX), REG)->u2.original_regno)
/* Force the REGNO macro to only be used on the lhs. */
static inline unsigned int
@ -1641,7 +1645,7 @@ do { \
/* The register attribute block. We provide access macros for each value
in the block and provide defaults if none specified. */
#define REG_ATTRS(RTX) X0REGATTR (RTX, 2)
#define REG_ATTRS(RTX) X0REGATTR (RTX, 1)
#ifndef GENERATOR_FILE
/* For a MEM rtx, the alias set. If 0, this MEM is not in any alias