updated commments

[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 98e7e0e..c9bb092 100644 (file)
--- a/ir/be/ia32/ia32_map_regs.c
+++ b/ir/be/ia32/ia32_map_regs.c
@@ -1,5 +1,7 @@
 /**
  * Register mapping for firm nodes. Stolen from bearch_firm :)
+ * Calculate requirements for register parameter.
+ * @author Christian Wuerdig
  * $Id$
  */
 #ifdef HAVE_CONFIG_H
@@ -38,26 +40,26 @@ const arch_register_t *gpreg_param_reg_this[] = {
 };
 
 const arch_register_t *fpreg_param_reg_std[] = {
-       &ia32_fp_regs[REG_XMM0],
-       &ia32_fp_regs[REG_XMM1],
-       &ia32_fp_regs[REG_XMM2],
-       &ia32_fp_regs[REG_XMM3],
-       &ia32_fp_regs[REG_XMM4],
-       &ia32_fp_regs[REG_XMM5],
-       &ia32_fp_regs[REG_XMM6],
-       &ia32_fp_regs[REG_XMM7]
+       &ia32_xmm_regs[REG_XMM0],
+       &ia32_xmm_regs[REG_XMM1],
+       &ia32_xmm_regs[REG_XMM2],
+       &ia32_xmm_regs[REG_XMM3],
+       &ia32_xmm_regs[REG_XMM4],
+       &ia32_xmm_regs[REG_XMM5],
+       &ia32_xmm_regs[REG_XMM6],
+       &ia32_xmm_regs[REG_XMM7]
 };
 
 const arch_register_t *fpreg_param_reg_this[] = {
        NULL,  /* in case of a "this" pointer, the first parameter must not be a float */
-       &ia32_fp_regs[REG_XMM0],
-       &ia32_fp_regs[REG_XMM1],
-       &ia32_fp_regs[REG_XMM2],
-       &ia32_fp_regs[REG_XMM3],
-       &ia32_fp_regs[REG_XMM4],
-       &ia32_fp_regs[REG_XMM5],
-       &ia32_fp_regs[REG_XMM6],
-       &ia32_fp_regs[REG_XMM7]
+       &ia32_xmm_regs[REG_XMM0],
+       &ia32_xmm_regs[REG_XMM1],
+       &ia32_xmm_regs[REG_XMM2],
+       &ia32_xmm_regs[REG_XMM3],
+       &ia32_xmm_regs[REG_XMM4],
+       &ia32_xmm_regs[REG_XMM5],
+       &ia32_xmm_regs[REG_XMM6],
+       &ia32_xmm_regs[REG_XMM7]
 };
 
 
@@ -115,10 +117,14 @@ void ia32_build_8bit_reg_map(pmap *reg_map) {
        pmap_insert(reg_map, &ia32_gp_regs[REG_EDX], "dl");
 }
 
-char *ia32_get_mapped_reg_name(pmap *reg_map, const arch_register_t *reg) {
+const char *ia32_get_mapped_reg_name(pmap *reg_map, const arch_register_t *reg) {
        pmap_entry *e = pmap_find(reg_map, (void *)reg);
 
-       assert(e && "missing map init?");
+       //assert(e && "missing map init?");
+       if (! e) {
+               printf("FIXME: ia32map_regs.c:122: returning fake register name for ia32 with 32 register\n");
+               return reg->name;
+       }
 
        return e->value;
 }
@@ -251,16 +257,17 @@ long ia32_translate_proj_pos(const ir_node *proj) {
                        return 1;
        }
        else if (is_ia32_DivMod(pred)) {
-               if (nr == pn_DivMod_res_div || nr == pn_Div_res)
+               if (nr == pn_DivMod_res_div)
                        return 0;
-               if (nr == pn_DivMod_res_mod || nr == pn_Mod_res)
+               if (nr == pn_DivMod_res_mod)
                        return 1;
+               assert(0 && "unsupported DivMod");
        }
-       else if (is_ia32_fDiv(pred)) {
+       else if (is_ia32_xDiv(pred)) {
                if (nr == pn_Quot_res)
                        return 0;
                else
-                       assert(0 && "there should be no more Projs for a fDiv");
+                       assert(0 && "there should be no more Projs for a xDiv");
        }
        else if (get_irn_mode(proj) == mode_X && nr == pn_Start_X_initial_exec) {
                return 0;