diff options
Diffstat (limited to 'contrib/gcc/expmed.c')
| -rw-r--r-- | contrib/gcc/expmed.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/contrib/gcc/expmed.c b/contrib/gcc/expmed.c index 7836de7..ab127ec 100644 --- a/contrib/gcc/expmed.c +++ b/contrib/gcc/expmed.c @@ -3049,9 +3049,12 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp) not straightforward to generalize this. Maybe we should make an array of possible modes in init_expmed? Save this for GCC 2.7. */ - optab1 = (op1_is_pow2 ? (unsignedp ? lshr_optab : ashr_optab) + optab1 = ((op1_is_pow2 && op1 != const0_rtx) + ? (unsignedp ? lshr_optab : ashr_optab) : (unsignedp ? udiv_optab : sdiv_optab)); - optab2 = (op1_is_pow2 ? optab1 : (unsignedp ? udivmod_optab : sdivmod_optab)); + optab2 = ((op1_is_pow2 && op1 != const0_rtx) + ? optab1 + : (unsignedp ? udivmod_optab : sdivmod_optab)); for (compute_mode = mode; compute_mode != VOIDmode; compute_mode = GET_MODE_WIDER_MODE (compute_mode)) @@ -4136,6 +4139,12 @@ make_tree (type, x) build (TRUNC_DIV_EXPR, t, make_tree (t, XEXP (x, 0)), make_tree (t, XEXP (x, 1))))); + + case SIGN_EXTEND: + case ZERO_EXTEND: + t = type_for_mode (GET_MODE (XEXP (x, 0)), GET_CODE (x) == ZERO_EXTEND); + return fold (convert (type, make_tree (t, XEXP (x, 0)))); + default: t = make_node (RTL_EXPR); TREE_TYPE (t) = type; |
