diff options
Diffstat (limited to 'gcc-4.9/gcc/tree-ssa-forwprop.c')
| -rw-r--r-- | gcc-4.9/gcc/tree-ssa-forwprop.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gcc-4.9/gcc/tree-ssa-forwprop.c b/gcc-4.9/gcc/tree-ssa-forwprop.c index b6bedfea6..c1d67307e 100644 --- a/gcc-4.9/gcc/tree-ssa-forwprop.c +++ b/gcc-4.9/gcc/tree-ssa-forwprop.c @@ -1529,7 +1529,8 @@ simplify_builtin_call (gimple_stmt_iterator *gsi_p, tree callee2) use_operand_p use_p; if (!tree_fits_shwi_p (val2) - || !tree_fits_uhwi_p (len2)) + || !tree_fits_uhwi_p (len2) + || compare_tree_int (len2, 1024) == 1) break; if (is_gimple_call (stmt1)) { @@ -1595,7 +1596,8 @@ simplify_builtin_call (gimple_stmt_iterator *gsi_p, tree callee2) is not constant, or is bigger than memcpy length, bail out. */ if (diff == NULL || !tree_fits_uhwi_p (diff) - || tree_int_cst_lt (len1, diff)) + || tree_int_cst_lt (len1, diff) + || compare_tree_int (diff, 1024) == 1) break; /* Use maximum of difference plus memset length and memcpy length @@ -3173,7 +3175,9 @@ simplify_vce (gimple_stmt_iterator *gsi) && (INTEGRAL_TYPE_P (TREE_TYPE (def_op)) || POINTER_TYPE_P (TREE_TYPE (def_op))) && (TYPE_PRECISION (TREE_TYPE (op)) - == TYPE_PRECISION (TREE_TYPE (def_op)))) + == TYPE_PRECISION (TREE_TYPE (def_op))) + && (TYPE_SIZE (TREE_TYPE (op)) + == TYPE_SIZE (TREE_TYPE (def_op)))) { TREE_OPERAND (gimple_assign_rhs1 (stmt), 0) = def_op; update_stmt (stmt); |