diff options
Diffstat (limited to 'gcc/tree-predcom.c')
| -rw-r--r-- | gcc/tree-predcom.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/gcc/tree-predcom.c b/gcc/tree-predcom.c index a3a137f..b5c8292 100644 --- a/gcc/tree-predcom.c +++ b/gcc/tree-predcom.c @@ -1401,6 +1401,26 @@ mark_virtual_ops_for_renaming_list (tree list) mark_virtual_ops_for_renaming (tsi_stmt (tsi)); } +/* Returns a new temporary variable used for the I-th variable carrying + value of REF. The variable's uid is marked in TMP_VARS. */ + +static tree +predcom_tmp_var (tree ref, unsigned i, bitmap tmp_vars) +{ + tree type = TREE_TYPE (ref); + tree var = create_tmp_var (type, get_lsm_tmp_name (ref, i)); + + /* We never access the components of the temporary variable in predictive + commoning. */ + if (TREE_CODE (type) == COMPLEX_TYPE + || TREE_CODE (type) == VECTOR_TYPE) + DECL_GIMPLE_REG_P (var) = 1; + + add_referenced_var (var); + bitmap_set_bit (tmp_vars, DECL_UID (var)); + return var; +} + /* Creates the variables for CHAIN, as well as phi nodes for them and initialization on entry to LOOP. Uids of the newly created temporary variables are marked in TMP_VARS. */ @@ -1429,9 +1449,7 @@ initialize_root_vars (struct loop *loop, chain_p chain, bitmap tmp_vars) for (i = 0; i < n + (reuse_first ? 0 : 1); i++) { - var = create_tmp_var (TREE_TYPE (ref), get_lsm_tmp_name (ref, i)); - add_referenced_var (var); - bitmap_set_bit (tmp_vars, DECL_UID (var)); + var = predcom_tmp_var (ref, i, tmp_vars); VEC_quick_push (tree, chain->vars, var); } if (reuse_first) @@ -1499,9 +1517,7 @@ initialize_root_vars_lm (struct loop *loop, dref root, bool written, init = VEC_index (tree, inits, 0); *vars = VEC_alloc (tree, heap, written ? 2 : 1); - var = create_tmp_var (TREE_TYPE (ref), get_lsm_tmp_name (ref, 0)); - add_referenced_var (var); - bitmap_set_bit (tmp_vars, DECL_UID (var)); + var = predcom_tmp_var (ref, 0, tmp_vars); VEC_quick_push (tree, *vars, var); if (written) VEC_quick_push (tree, *vars, VEC_index (tree, *vars, 0)); |