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riscv-gcc-1
Commit 3c491cab by Kazu Hirata Committed by Kazu Hirata
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regclass.c (reg_scan_update): Remove. 

	* regclass.c (reg_scan_update): Remove.
	(reg_scan_mark_refs): Remove the last argument.
	* rtl.h: Remove the prototype for reg_scan_update.

From-SVN: r111729
parent 76ddc688
Showing with 23 additions and 56 deletions
gcc/ChangeLog
2006-03-05 Kazu Hirata <kazu@codesourcery.com>
* regclass.c (reg_scan_update): Remove.
(reg_scan_mark_refs): Remove the last argument.
* rtl.h: Remove the prototype for reg_scan_update.
2006-03-04 Kazu Hirata <kazu@codesourcery.com>
* builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
......
gcc/regclass.c
......@@ -856,7 +856,7 @@ static void record_address_regs (rtx, enum reg_class, int);
#ifdef FORBIDDEN_INC_DEC_CLASSES
static int auto_inc_dec_reg_p (rtx, enum machine_mode);
#endif
static void reg_scan_mark_refs (rtx, rtx, int, unsigned int);
static void reg_scan_mark_refs (rtx, rtx, int);
/* Return the reg_class in which pseudo reg number REGNO is best allocated.
This function is sometimes called before the info has been computed.
......@@ -2277,10 +2277,10 @@ reg_scan (rtx f, unsigned int nregs)
if (GET_CODE (pat) == PARALLEL
&& XVECLEN (pat, 0) > max_parallel)
max_parallel = XVECLEN (pat, 0);
reg_scan_mark_refs (pat, insn, 0, 0);
reg_scan_mark_refs (pat, insn, 0);
if (REG_NOTES (insn))
reg_scan_mark_refs (REG_NOTES (insn), insn, 1, 0);
reg_scan_mark_refs (REG_NOTES (insn), insn, 1);
}
max_parallel += max_set_parallel;
......@@ -2288,39 +2288,11 @@ reg_scan (rtx f, unsigned int nregs)
timevar_pop (TV_REG_SCAN);
}
/* Update 'regscan' information by looking at the insns
from FIRST to LAST. Some new REGs have been created,
and any REG with number greater than OLD_MAX_REGNO is
such a REG. We only update information for those. */
void
reg_scan_update (rtx first, rtx last, unsigned int old_max_regno)
{
rtx insn;
allocate_reg_info (max_reg_num (), FALSE, FALSE);
for (insn = first; insn != last; insn = NEXT_INSN (insn))
if (INSN_P (insn))
{
rtx pat = PATTERN (insn);
if (GET_CODE (pat) == PARALLEL
&& XVECLEN (pat, 0) > max_parallel)
max_parallel = XVECLEN (pat, 0);
reg_scan_mark_refs (pat, insn, 0, old_max_regno);
if (REG_NOTES (insn))
reg_scan_mark_refs (REG_NOTES (insn), insn, 1, old_max_regno);
}
}
/* X is the expression to scan. INSN is the insn it appears in.
NOTE_FLAG is nonzero if X is from INSN's notes rather than its body.
We should only record information for REGs with numbers
greater than or equal to MIN_REGNO. */
NOTE_FLAG is nonzero if X is from INSN's notes rather than its body. */
static void
reg_scan_mark_refs (rtx x, rtx insn, int note_flag, unsigned int min_regno)
reg_scan_mark_refs (rtx x, rtx insn, int note_flag)
{
enum rtx_code code;
rtx dest;
......@@ -2347,43 +2319,35 @@ reg_scan_mark_refs (rtx x, rtx insn, int note_flag, unsigned int min_regno)
{
unsigned int regno = REGNO (x);
if (regno >= min_regno)
{
if (!note_flag)
REGNO_LAST_UID (regno) = INSN_UID (insn);
if (REGNO_FIRST_UID (regno) == 0)
REGNO_FIRST_UID (regno) = INSN_UID (insn);
/* If we are called by reg_scan_update() (indicated by min_regno
being set), we also need to update the reference count. */
if (min_regno)
REG_N_REFS (regno)++;
}
if (!note_flag)
REGNO_LAST_UID (regno) = INSN_UID (insn);
if (REGNO_FIRST_UID (regno) == 0)
REGNO_FIRST_UID (regno) = INSN_UID (insn);
}
break;
case EXPR_LIST:
if (XEXP (x, 0))
reg_scan_mark_refs (XEXP (x, 0), insn, note_flag, min_regno);
reg_scan_mark_refs (XEXP (x, 0), insn, note_flag);
if (XEXP (x, 1))
reg_scan_mark_refs (XEXP (x, 1), insn, note_flag, min_regno);
reg_scan_mark_refs (XEXP (x, 1), insn, note_flag);
break;
case INSN_LIST:
if (XEXP (x, 1))
reg_scan_mark_refs (XEXP (x, 1), insn, note_flag, min_regno);
reg_scan_mark_refs (XEXP (x, 1), insn, note_flag);
break;
case CLOBBER:
{
rtx reg = XEXP (x, 0);
if (REG_P (reg)
&& REGNO (reg) >= min_regno)
if (REG_P (reg))
{
REG_N_SETS (REGNO (reg))++;
REG_N_REFS (REGNO (reg))++;
}
else if (MEM_P (reg))
reg_scan_mark_refs (XEXP (reg, 0), insn, note_flag, min_regno);
reg_scan_mark_refs (XEXP (reg, 0), insn, note_flag);
}
break;
......@@ -2400,8 +2364,7 @@ reg_scan_mark_refs (rtx x, rtx insn, int note_flag, unsigned int min_regno)
if (GET_CODE (dest) == PARALLEL)
max_set_parallel = MAX (max_set_parallel, XVECLEN (dest, 0) - 1);
if (REG_P (dest)
&& REGNO (dest) >= min_regno)
if (REG_P (dest))
{
REG_N_SETS (REGNO (dest))++;
REG_N_REFS (REGNO (dest))++;
......@@ -2421,7 +2384,6 @@ reg_scan_mark_refs (rtx x, rtx insn, int note_flag, unsigned int min_regno)
if (REG_P (SET_DEST (x))
&& REGNO (SET_DEST (x)) >= FIRST_PSEUDO_REGISTER
&& REGNO (SET_DEST (x)) >= min_regno
/* If the destination pseudo is set more than once, then other
sets might not be to a pointer value (consider access to a
union in two threads of control in the presence of global
......@@ -2482,12 +2444,12 @@ reg_scan_mark_refs (rtx x, rtx insn, int note_flag, unsigned int min_regno)
for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
{
if (fmt[i] == 'e')
reg_scan_mark_refs (XEXP (x, i), insn, note_flag, min_regno);
reg_scan_mark_refs (XEXP (x, i), insn, note_flag);
else if (fmt[i] == 'E' && XVEC (x, i) != 0)
{
int j;
for (j = XVECLEN (x, i) - 1; j >= 0; j--)
reg_scan_mark_refs (XVECEXP (x, i, j), insn, note_flag, min_regno);
reg_scan_mark_refs (XVECEXP (x, i, j), insn, note_flag);
}
}
}
......
gcc/rtl.h
......@@ -2168,7 +2168,6 @@ extern void init_reg_sets (void);
extern void regclass_init (void);
extern void regclass (rtx, int);
extern void reg_scan (rtx, unsigned int);
extern void reg_scan_update (rtx, rtx, unsigned int);
extern void fix_register (const char *, int, int);
extern void init_subregs_of_mode (void);
extern void record_subregs_of_mode (rtx);
......
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