in case SS is used: copy call floating point result from ST0 into SSE register

[libfirm] / ir / be / ia32 / ia32_optimize.c

diff --git a/ir/be/ia32/ia32_optimize.c b/ir/be/ia32/ia32_optimize.c
index 54c9f43..c464538 100644 (file)
--- a/ir/be/ia32/ia32_optimize.c
+++ b/ir/be/ia32/ia32_optimize.c
@@ -789,7 +789,8 @@ static ia32_am_cand_t is_am_candidate(ia32_code_gen_t *cg, heights_t *h, const i
        ir_node *in, *load, *other, *left, *right;
        int      n, is_cand = 0, cand;
 
-       if (is_ia32_Ld(irn) || is_ia32_St(irn) || is_ia32_Store8Bit(irn) || is_ia32_vfild(irn) || is_ia32_vfist(irn))
+       if (is_ia32_Ld(irn) || is_ia32_St(irn) || is_ia32_Store8Bit(irn) || is_ia32_vfild(irn) || is_ia32_vfist(irn) ||
+               is_ia32_GetST0(irn) || is_ia32_SetST0(irn))
                return 0;
 
        left  = get_irn_n(irn, 2);