diff options
Diffstat (limited to 'gcc/loop-unroll.c')
| -rw-r--r-- | gcc/loop-unroll.c | 28 |
1 files changed, 3 insertions, 25 deletions
diff --git a/gcc/loop-unroll.c b/gcc/loop-unroll.c index ad4d3c2da50..707ffff70b0 100644 --- a/gcc/loop-unroll.c +++ b/gcc/loop-unroll.c @@ -79,11 +79,6 @@ struct iv_to_split iterations are based. */ rtx step; /* Step of the induction variable. */ struct iv_to_split *next; /* Next entry in walking order. */ - unsigned n_loc; - unsigned loc[3]; /* Location where the definition of the induction - variable occurs in the insn. For example if - N_LOC is 2, the expression is located at - XEXP (XEXP (single_set, loc[0]), loc[1]). */ }; /* Information about accumulators to expand. */ @@ -1942,8 +1937,6 @@ analyze_iv_to_split_insn (rtx insn) ivts->base_var = NULL_RTX; ivts->step = iv.step; ivts->next = NULL; - ivts->n_loc = 1; - ivts->loc[0] = 1; return ivts; } @@ -2080,27 +2073,12 @@ determine_split_iv_delta (unsigned n_copy, unsigned n_copies, bool unrolling) } } -/* Locate in EXPR the expression corresponding to the location recorded - in IVTS, and return a pointer to the RTX for this location. */ - -static rtx * -get_ivts_expr (rtx expr, struct iv_to_split *ivts) -{ - unsigned i; - rtx *ret = &expr; - - for (i = 0; i < ivts->n_loc; i++) - ret = &XEXP (*ret, ivts->loc[i]); - - return ret; -} - /* Allocate basic variable for the induction variable chain. */ static void allocate_basic_variable (struct iv_to_split *ivts) { - rtx expr = *get_ivts_expr (single_set (ivts->insn), ivts); + rtx expr = SET_SRC (single_set (ivts->insn)); ivts->base_var = gen_reg_rtx (GET_MODE (expr)); } @@ -2111,7 +2089,7 @@ allocate_basic_variable (struct iv_to_split *ivts) static void insert_base_initialization (struct iv_to_split *ivts, rtx insn) { - rtx expr = copy_rtx (*get_ivts_expr (single_set (insn), ivts)); + rtx expr = copy_rtx (SET_SRC (single_set (insn))); rtx seq; start_sequence (); @@ -2146,7 +2124,7 @@ split_iv (struct iv_to_split *ivts, rtx insn, unsigned delta) } /* Figure out where to do the replacement. */ - loc = get_ivts_expr (single_set (insn), ivts); + loc = &SET_SRC (single_set (insn)); /* If we can make the replacement right away, we're done. */ if (validate_change (insn, loc, expr, 0)) |