diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index f8408c4..bfd1798 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -2661,7 +2661,7 @@ twoval_comparison_p (tree arg, tree *cval1, tree *cval2, int *save_p) || code == COMPOUND_EXPR)) class = '2'; - else if (class == 'e' && code == SAVE_EXPR && SAVE_EXPR_RTL (arg) == 0 + else if (class == 'e' && code == SAVE_EXPR && ! TREE_SIDE_EFFECTS (TREE_OPERAND (arg, 0))) { /* If we've already found a CVAL1 or CVAL2, this expression is @@ -5971,10 +5971,6 @@ fold (tree expr) if all operands are constant. */ int wins = 1; - /* Don't try to process an SAVE_EXPR that's already been evaluated. */ - if (code == SAVE_EXPR && SAVE_EXPR_RTL (t) != 0) - return t; - /* Return right away if a constant. */ if (kind == 'c') return t; @@ -8985,14 +8981,7 @@ fold_checksum_tree (tree expr, struct md5_ctx *ctx, htab_t ht) return; *slot = expr; code = TREE_CODE (expr); - if (code == SAVE_EXPR && SAVE_EXPR_NOPLACEHOLDER (expr)) - { - /* Allow SAVE_EXPR_NOPLACEHOLDER flag to be modified. */ - memcpy (buf, expr, tree_size (expr)); - expr = (tree) buf; - SAVE_EXPR_NOPLACEHOLDER (expr) = 0; - } - else if (TREE_CODE_CLASS (code) == 'd' && DECL_ASSEMBLER_NAME_SET_P (expr)) + if (TREE_CODE_CLASS (code) == 'd' && DECL_ASSEMBLER_NAME_SET_P (expr)) { /* Allow DECL_ASSEMBLER_NAME to be modified. */ memcpy (buf, expr, tree_size (expr)); @@ -9051,7 +9040,6 @@ fold_checksum_tree (tree expr, struct md5_ctx *ctx, htab_t ht) case 'e': switch (code) { - case SAVE_EXPR: len = 2; break; case GOTO_SUBROUTINE_EXPR: len = 0; break; case WITH_CLEANUP_EXPR: len = 2; break; default: break; |