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authorkazu <kazu@138bc75d-0d04-0410-961f-82ee72b054a4>2005-01-15 04:10:54 +0000
committerkazu <kazu@138bc75d-0d04-0410-961f-82ee72b054a4>2005-01-15 04:10:54 +0000
commitffe35668043bd50a0bd867eab35804910159bd56 (patch)
treec7b3ab1210534dd92e64e99073c22a00c3da9193 /gcc/explow.c
parentd8dc42542644ef4b61aa1c3be1646a52e5f13c6b (diff)
downloadgcc-ffe35668043bd50a0bd867eab35804910159bd56.tar.gz
* explow.c (copy_all_reg, stabilize): Remove.
* expr.h: Remove the corresponding prototypes. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@93683 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/explow.c')
-rw-r--r--gcc/explow.c54
1 files changed, 0 insertions, 54 deletions
diff --git a/gcc/explow.c b/gcc/explow.c
index a3e28ff16ec..6460bb9bbd7 100644
--- a/gcc/explow.c
+++ b/gcc/explow.c
@@ -390,44 +390,6 @@ convert_memory_address (enum machine_mode to_mode ATTRIBUTE_UNUSED,
x, POINTERS_EXTEND_UNSIGNED);
#endif /* defined(POINTERS_EXTEND_UNSIGNED) */
}
-
-/* Given a memory address or facsimile X, construct a new address,
- currently equivalent, that is stable: future stores won't change it.
-
- X must be composed of constants, register and memory references
- combined with addition, subtraction and multiplication:
- in other words, just what you can get from expand_expr if sum_ok is 1.
-
- Works by making copies of all regs and memory locations used
- by X and combining them the same way X does.
- You could also stabilize the reference to this address
- by copying the address to a register with copy_to_reg;
- but then you wouldn't get indexed addressing in the reference. */
-
-rtx
-copy_all_regs (rtx x)
-{
- if (REG_P (x))
- {
- if (REGNO (x) != FRAME_POINTER_REGNUM
-#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM
- && REGNO (x) != HARD_FRAME_POINTER_REGNUM
-#endif
- )
- x = copy_to_reg (x);
- }
- else if (MEM_P (x))
- x = copy_to_reg (x);
- else if (GET_CODE (x) == PLUS || GET_CODE (x) == MINUS
- || GET_CODE (x) == MULT)
- {
- rtx op0 = copy_all_regs (XEXP (x, 0));
- rtx op1 = copy_all_regs (XEXP (x, 1));
- if (op0 != XEXP (x, 0) || op1 != XEXP (x, 1))
- x = gen_rtx_fmt_ee (GET_CODE (x), Pmode, op0, op1);
- }
- return x;
-}
/* Return something equivalent to X but valid as a memory address
for something of mode MODE. When X is not itself valid, this
@@ -576,22 +538,6 @@ validize_mem (rtx ref)
return replace_equiv_address (ref, XEXP (ref, 0));
}
-/* Return a modified copy of X with its memory address copied
- into a temporary register to protect it from side effects.
- If X is not a MEM, it is returned unchanged (and not copied).
- Perhaps even if it is a MEM, if there is no need to change it. */
-
-rtx
-stabilize (rtx x)
-{
- if (!MEM_P (x)
- || ! rtx_unstable_p (XEXP (x, 0)))
- return x;
-
- return
- replace_equiv_address (x, force_reg (Pmode, copy_all_regs (XEXP (x, 0))));
-}
-
/* Copy the value or contents of X to a new temp reg and return that reg. */
rtx