diff options
Diffstat (limited to 'gcc/tree-parloops.c')
| -rw-r--r-- | gcc/tree-parloops.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c index d6e94b3..91ce890 100644 --- a/gcc/tree-parloops.c +++ b/gcc/tree-parloops.c @@ -1325,9 +1325,10 @@ create_loop_fn (void) /* Bases all the induction variables in LOOP on a single induction variable (unsigned with base 0 and step 1), whose final value is compared with NIT. The induction variable is incremented in the loop latch. - REDUCTION_LIST describes the reductions in LOOP. */ + REDUCTION_LIST describes the reductions in LOOP. Return the induction + variable that was created. */ -static void +tree canonicalize_loop_ivs (struct loop *loop, htab_t reduction_list, tree nit) { unsigned precision = TYPE_PRECISION (TREE_TYPE (nit)); @@ -1368,7 +1369,12 @@ canonicalize_loop_ivs (struct loop *loop, htab_t reduction_list, tree nit) } ok = simple_iv (loop, phi, res, &iv, true); - red = reduction_phi (reduction_list, phi); + + if (reduction_list) + red = reduction_phi (reduction_list, phi); + else + red = NULL; + /* We preserve the reduction phi nodes. */ if (!ok && red) { @@ -1406,6 +1412,9 @@ canonicalize_loop_ivs (struct loop *loop, htab_t reduction_list, tree nit) gimple_cond_set_code (stmt, LT_EXPR); gimple_cond_set_lhs (stmt, var_before); gimple_cond_set_rhs (stmt, nit); + update_stmt (stmt); + + return var_before; } /* Moves the exit condition of LOOP to the beginning of its header, and |