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[libfirm] / ir / be / ia32 / ia32_map_regs.c

diff --git a/ir/be/ia32/ia32_map_regs.c b/ir/be/ia32/ia32_map_regs.c
index 8c94426..0bd6c39 100644 (file)
--- a/ir/be/ia32/ia32_map_regs.c
+++ b/ir/be/ia32/ia32_map_regs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -34,12 +34,12 @@
 
 #include "ia32_map_regs.h"
 #include "ia32_new_nodes.h"
+#include "ia32_architecture.h"
 #include "gen_ia32_regalloc_if.h"
 #include "bearch_ia32_t.h"
-#include "../benodesets.h"
 
-static int maxnum_gpreg_args = 3;   /* maximum number of int arguments passed in registers; default 3 */
-static int maxnum_sse_args = 5;   /* maximum number of float arguments passed in registers; default 5 */
+#define MAXNUM_GPREG_ARGS     3
+#define MAXNUM_SSE_ARGS       5
 
 /* this is the order of the assigned registers usesd for parameter passing */
 
@@ -96,6 +96,7 @@ struct ia32_irn_reg_assoc {
 int ia32_cmp_irn_reg_assoc(const void *a, const void *b, size_t len) {
        const struct ia32_irn_reg_assoc *x = a;
        const struct ia32_irn_reg_assoc *y = b;
+       (void) len;
 
        return x->irn != y->irn;
 }
@@ -106,7 +107,7 @@ static struct ia32_irn_reg_assoc *get_irn_reg_assoc(const ir_node *irn, set *reg
 
        templ.irn = irn;
        templ.reg = NULL;
-       hash = nodeset_hash(irn);
+       hash      = hash_irn(irn);
 
        return set_insert(reg_set, &templ, sizeof(templ), hash);
 }
@@ -158,67 +159,37 @@ const char *ia32_get_mapped_reg_name(pmap *reg_map, const arch_register_t *reg)
        return e->value;
 }
 
-/**
- * Check all parameters and determine the maximum number of parameters
- * to pass in gp regs resp. in fp regs.
- */
-int ia32_get_n_regparam_class(ia32_code_gen_t *cg, int n, ir_mode **modes)
-{
-       int i;
-       int max_fp_regs;
-       int n_int       = 0;
-       int n_float     = 0;
-
-       if(USE_SSE2(cg)) {
-               max_fp_regs = maxnum_sse_args;
-       } else {
-               max_fp_regs = 0;
-       }
-
-       for (i = 0; i < n; i++) {
-               if (mode_is_int(modes[i]) || mode_is_reference(modes[i])) {
-                       ++n_int;
-               } else if (mode_is_float(modes[i])) {
-                       ++n_float;
-               } else {
-                       panic("Unknown parameter mode encountered");
-               }
-
-               if (n_int >= maxnum_gpreg_args || n_float >= max_fp_regs)
-                       break;
-       }
-
-       return i;
-}
-
-
 /**
  * Returns the register for parameter nr.
- *
- * @param n     The number of parameters
- * @param modes The list of the parameter modes
- * @param nr    The number of the parameter to return the requirements for
- * @param cc    The calling convention
- * @return      The register
  */
-const arch_register_t *ia32_get_RegParam_reg(ia32_code_gen_t *cg, unsigned cc,
-                                             unsigned nr, ir_mode *mode)
+const arch_register_t *ia32_get_RegParam_reg(unsigned cc, size_t nr,
+                                             const ir_mode *mode)
 {
+       if(! (cc & cc_reg_param))
+               return NULL;
+
        if(mode_is_float(mode)) {
-               if(!USE_SSE2(cg))
+               if(!ia32_cg_config.use_sse2)
                        return NULL;
-               assert(nr < maxnum_sse_args);
+               if(nr >= MAXNUM_SSE_ARGS)
+                       return NULL;
+
                if(cc & cc_this_call) {
                        return fpreg_sse_param_reg_this[nr];
                }
                return fpreg_sse_param_reg_std[nr];
-       }
+       } else if(mode_is_int(mode) || mode_is_reference(mode)) {
+               if(get_mode_size_bits(mode) > 32)
+                       return NULL;
 
-       assert(mode_is_int(mode) || mode_is_reference(mode));
+               if(nr >= MAXNUM_GPREG_ARGS)
+                       return NULL;
 
-       if(cc & cc_this_call) {
-               assert(nr < maxnum_gpreg_args);
-               return gpreg_param_reg_this[nr];
+               if(cc & cc_this_call) {
+                       return gpreg_param_reg_this[nr];
+               }
+               return gpreg_param_reg_std[nr];
        }
-       return gpreg_param_reg_std[nr];
+
+       panic("unknown argument mode");
 }