Remove the unused regs_saved_by_me hook.

[libfirm] / ir / be / bechordal.c

diff --git a/ir/be/bechordal.c b/ir/be/bechordal.c
index 4f54e7b..ade9717 100644 (file)
--- a/ir/be/bechordal.c
+++ b/ir/be/bechordal.c
@@ -241,7 +241,8 @@ static ir_node *prepare_constr_insn(be_chordal_env_t *env, ir_node *irn)
                const arch_register_t *reg;
                const arch_register_req_t *req;
 
-               if (arch_get_irn_reg_class(irn, i) != env->cls)
+               req = arch_get_register_req(irn, i);
+               if (req->cls != env->cls)
                        continue;
 
                reg = arch_get_irn_register(op);
@@ -251,7 +252,6 @@ static ir_node *prepare_constr_insn(be_chordal_env_t *env, ir_node *irn)
                if(arch_register_type_is(reg, joker))
                        continue;
 
-               req = arch_get_register_req(irn, i);
                if (!arch_register_req_is(req, limited))
                        continue;
 
@@ -369,13 +369,9 @@ void be_pre_spill_prepare_constr(be_chordal_env_t *cenv) {
 static void pair_up_operands(const be_chordal_alloc_env_t *alloc_env, be_insn_t *insn)
 {
        const be_chordal_env_t *env = alloc_env->chordal_env;
-
-       int n_uses   = be_insn_n_uses(insn);
-       int n_defs   = be_insn_n_defs(insn);
-       bitset_t *bs = bitset_alloca(env->cls->n_regs);
-       int *pairing = alloca(MAX(n_defs, n_uses) * sizeof(pairing[0]));
-
-       int i, j;
+       bitset_t               *bs  = bitset_alloca(env->cls->n_regs);
+       int                     i;
+       int                     j;
 
        /*
                For each out operand, try to find an in operand which can be assigned the
@@ -538,10 +534,10 @@ static ir_node *handle_constraints(be_chordal_alloc_env_t *alloc_env,
 
        n_regs      = env->cls->n_regs;
        bs          = bitset_alloca(n_regs);
-       alloc_nodes = alloca(n_regs * sizeof(alloc_nodes[0]));
+       alloc_nodes = ALLOCAN(ir_node*, n_regs);
        //bp          = hungarian_new(n_regs, n_regs, 2, HUNGARIAN_MATCH_PERFECT);
        bp          = bipartite_new(n_regs, n_regs);
-       assignment  = alloca(n_regs * sizeof(assignment[0]));
+       assignment  = ALLOCAN(int, n_regs);
        partners    = pmap_create();
 
        /*