diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/alias.c | 13 |
2 files changed, 15 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ab6dd74..c552233 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2003-04-22 Roger Sayle <roger@eyesopen.com> + * alias.c (mark_constant_function): Check for constancy and + purity even of void functions. Update both the function decl + and the cgraph RTL info with the results. + +2003-04-22 Roger Sayle <roger@eyesopen.com> + * real.c (do_add): Change to return a bool indicating that the result of the operation may be inexact due to loss of precision. (do_multiply): Likewise. diff --git a/gcc/alias.c b/gcc/alias.c index 49b53c9..4cd51e9 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -2642,7 +2642,7 @@ nonlocal_set_p (x) return for_each_rtx (&x, nonlocal_set_p_1, NULL); } -/* Mark the function if it is constant. */ +/* Mark the function if it is pure or constant. */ void mark_constant_function () @@ -2653,7 +2653,6 @@ mark_constant_function () if (TREE_READONLY (current_function_decl) || DECL_IS_PURE (current_function_decl) || TREE_THIS_VOLATILE (current_function_decl) - || TYPE_MODE (TREE_TYPE (current_function_decl)) == VOIDmode || current_function_has_nonlocal_goto || !(*targetm.binds_local_p) (current_function_decl)) return; @@ -2688,9 +2687,15 @@ mark_constant_function () if (insn) ; else if (nonlocal_memory_referenced) - cgraph_rtl_info (current_function_decl)->pure_function = 1; + { + cgraph_rtl_info (current_function_decl)->pure_function = 1; + DECL_IS_PURE (current_function_decl) = 1; + } else - cgraph_rtl_info (current_function_decl)->const_function = 1; + { + cgraph_rtl_info (current_function_decl)->const_function = 1; + TREE_READONLY (current_function_decl) = 1; + } } |