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Fix lossage caused by applying old version of my previous patch.

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From-SVN: r33254
This commit is contained in:
Jan Hubicka 2000-04-19 12:45:50 +00:00
parent b9297e70ac
commit 82ee5e63a0
2 changed files with 9 additions and 8 deletions
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15
gcc/loop.c
View File

@ -308,8 +308,8 @@ static int replace_loop_reg PARAMS ((rtx *, void *));
static void note_reg_stored PARAMS ((rtx, rtx, void *));
static void try_copy_prop PARAMS ((const struct loop *, rtx, unsigned int));
static int replace_label PARAMS ((rtx *, void *));
static void check_insn_for_givs PARAMS((struct loop *, rtx, int, int));
static void check_insn_for_bivs PARAMS((struct loop *, rtx, int, int));
static rtx check_insn_for_givs PARAMS((struct loop *, rtx, int, int));
static rtx check_insn_for_bivs PARAMS((struct loop *, rtx, int, int));
typedef struct rtx_and_int {
rtx r;
@ -3730,7 +3730,7 @@ for_each_insn_in_loop (loop, fncall)
p != NULL_RTX;
p = next_insn_in_loop (loop, p))
{
fncall (loop, p, maybe_multiple, not_every_iteration);
p = fncall (loop, p, not_every_iteration, not_every_iteration);
/* Past CODE_LABEL, we get to insns that may be executed multiple
times. The only way we can be sure that they can't is if every
@ -5068,7 +5068,7 @@ egress:
}
/*Record all basic induction variables calculated in the insn. */
static void
static rtx
check_insn_for_bivs (loop, p, not_every_iteration, maybe_multiple)
struct loop *loop;
rtx p;
@ -5112,12 +5112,13 @@ check_insn_for_bivs (loop, p, not_every_iteration, maybe_multiple)
REG_IV_TYPE (REGNO (dest_reg)) = NOT_BASIC_INDUCT;
}
}
return p;
}
/* Record all givs calculated in the insn.
A register is a giv if: it is only set once, it is a function of a
biv and a constant (or invariant), and it is not a biv. */
static void
static rtx
check_insn_for_givs (loop, p, not_every_iteration, maybe_multiple)
struct loop *loop;
rtx p;
@ -5141,7 +5142,7 @@ check_insn_for_givs (loop, p, not_every_iteration, maybe_multiple)
dest_reg = SET_DEST (set);
if (REGNO (dest_reg) < FIRST_PSEUDO_REGISTER)
return;
return p;
if (/* SET_SRC is a giv. */
(general_induction_var (loop, SET_SRC (set), &src_reg, &add_val,
@ -5196,7 +5197,7 @@ check_insn_for_givs (loop, p, not_every_iteration, maybe_multiple)
if (GET_CODE (p) == INSN || GET_CODE (p) == JUMP_INSN
|| GET_CODE (p) == CODE_LABEL)
update_giv_derive (loop, p);
return p;
}
/* Return 1 if X is a valid source for an initial value (or as value being

2
gcc/loop.h
View File

@ -247,6 +247,6 @@ void emit_unrolled_add PARAMS ((rtx, rtx, rtx));
int back_branch_in_range_p PARAMS ((const struct loop *, rtx));
int loop_insn_first_p PARAMS ((rtx, rtx));
typedef void (*loop_insn_callback ) PARAMS ((struct loop *, rtx, int, int));
typedef rtx (*loop_insn_callback ) PARAMS ((struct loop *, rtx, int, int));
void for_each_insn_in_loop PARAMS ((struct loop *, loop_insn_callback));