From dc782dcd16b10eb6b4d083222228f8cd1ac52ac1 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@codesourcery.com>
Date: Sun, 5 Mar 2006 05:59:55 +0000
Subject: [PATCH] rtlanal.c (replace_reg): Remove.
* rtlanal.c (replace_reg): Remove.
* rtl.h: Remove the prototype for replace_reg.
From-SVN: r111730
---
gcc/ChangeLog | 5 +++
gcc/rtl.h | 1 -
gcc/rtlanal.c | 100 --------------------------------------------------
3 files changed, 5 insertions(+), 101 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5491d5b28613..a5f0a1809e1b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-03-05 Kazu Hirata <kazu@codesourcery.com>
+
+ * rtlanal.c (replace_reg): Remove.
+ * rtl.h: Remove the prototype for replace_reg.
+
2006-03-05 Kazu Hirata <kazu@codesourcery.com>
* regclass.c (reg_scan_update): Remove.
diff --git a/gcc/rtl.h b/gcc/rtl.h
index 3d182f529170..47d7b0d8922a 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -1723,7 +1723,6 @@ extern int may_trap_after_code_motion_p (rtx);
extern int may_trap_or_fault_p (rtx);
extern int inequality_comparisons_p (rtx);
extern rtx replace_rtx (rtx, rtx, rtx);
-extern rtx replace_regs (rtx, rtx *, unsigned int, int);
extern int replace_label (rtx *, void *);
extern int rtx_referenced_p (rtx, rtx);
extern bool tablejump_p (rtx, rtx *, rtx *);
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index d740ed5b1235..9292a4bb9bb3 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -2371,106 +2371,6 @@ replace_rtx (rtx x, rtx from, rtx to)
return x;
}
-/* Throughout the rtx X, replace many registers according to REG_MAP.
- Return the replacement for X (which may be X with altered contents).
- REG_MAP[R] is the replacement for register R, or 0 for don't replace.
- NREGS is the length of REG_MAP; regs >= NREGS are not mapped.
-
- We only support REG_MAP entries of REG or SUBREG. Also, hard registers
- should not be mapped to pseudos or vice versa since validate_change
- is not called.
-
- If REPLACE_DEST is 1, replacements are also done in destinations;
- otherwise, only sources are replaced. */
-
-rtx
-replace_regs (rtx x, rtx *reg_map, unsigned int nregs, int replace_dest)
-{
- enum rtx_code code;
- int i;
- const char *fmt;
-
- if (x == 0)
- return x;
-
- code = GET_CODE (x);
- switch (code)
- {
- case SCRATCH:
- case PC:
- case CC0:
- case CONST_INT:
- case CONST_DOUBLE:
- case CONST_VECTOR:
- case CONST:
- case SYMBOL_REF:
- case LABEL_REF:
- return x;
-
- case REG:
- /* Verify that the register has an entry before trying to access it. */
- if (REGNO (x) < nregs && reg_map[REGNO (x)] != 0)
- {
- /* SUBREGs can't be shared. Always return a copy to ensure that if
- this replacement occurs more than once then each instance will
- get distinct rtx. */
- if (GET_CODE (reg_map[REGNO (x)]) == SUBREG)
- return copy_rtx (reg_map[REGNO (x)]);
- return reg_map[REGNO (x)];
- }
- return x;
-
- case SUBREG:
- /* Prevent making nested SUBREGs. */
- if (REG_P (SUBREG_REG (x)) && REGNO (SUBREG_REG (x)) < nregs
- && reg_map[REGNO (SUBREG_REG (x))] != 0
- && GET_CODE (reg_map[REGNO (SUBREG_REG (x))]) == SUBREG)
- {
- rtx map_val = reg_map[REGNO (SUBREG_REG (x))];
- return simplify_gen_subreg (GET_MODE (x), map_val,
- GET_MODE (SUBREG_REG (x)),
- SUBREG_BYTE (x));
- }
- break;
-
- case SET:
- if (replace_dest)
- SET_DEST (x) = replace_regs (SET_DEST (x), reg_map, nregs, 0);
-
- else if (MEM_P (SET_DEST (x))
- || GET_CODE (SET_DEST (x)) == STRICT_LOW_PART)
- /* Even if we are not to replace destinations, replace register if it
- is CONTAINED in destination (destination is memory or
- STRICT_LOW_PART). */
- XEXP (SET_DEST (x), 0) = replace_regs (XEXP (SET_DEST (x), 0),
- reg_map, nregs, 0);
- else if (GET_CODE (SET_DEST (x)) == ZERO_EXTRACT)
- /* Similarly, for ZERO_EXTRACT we replace all operands. */
- break;
-
- SET_SRC (x) = replace_regs (SET_SRC (x), reg_map, nregs, 0);
- return x;
-
- default:
- break;
- }
-
- fmt = GET_RTX_FORMAT (code);
- for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
- {
- if (fmt[i] == 'e')
- XEXP (x, i) = replace_regs (XEXP (x, i), reg_map, nregs, replace_dest);
- else if (fmt[i] == 'E')
- {
- int j;
- for (j = 0; j < XVECLEN (x, i); j++)
- XVECEXP (x, i, j) = replace_regs (XVECEXP (x, i, j), reg_map,
- nregs, replace_dest);
- }
- }
- return x;
-}
-
/* Replace occurrences of the old label in *X with the new one.
DATA is a REPLACE_LABEL_DATA containing the old and new labels. */
--
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