some preliminary long double support

[r16833]

diff --git a/ir/be/ia32/ia32_x87.c b/ir/be/ia32/ia32_x87.c
index 94740b4..7b7ce9d 100644 (file)
--- a/ir/be/ia32/ia32_x87.c
+++ b/ir/be/ia32/ia32_x87.c
@@ -1213,8 +1213,9 @@ static int sim_store(x87_state *state, ir_node *n, ir_op *op, ir_op *op_p) {
                        Solution:
                                - stack not full: push value and fstp
                                - stack full: fstp value and load again
+                       Note that we cannot test on mode_E, because floats might be 96bit ...
                */
-               if (mode == mode_E || mode == mode_Ls) {
+               if (get_mode_size_bits(mode) > 64 || mode == mode_Ls) {
                        if (depth < N_x87_REGS) {
                                /* ok, we have a free register: push + fstp */
                                x87_create_fpush(state, n, op2_idx, n_ia32_vfst_val);