my @obst_limit_func; # stack for functions to return a subset of a register class
my @obst_defreq_head; # stack for prototypes of default requirement function
my @obst_header_all; # stack for some extern struct defs needed for bearch_$arch include
+my @obst_projnum_map; # stack for mapping register projnums to requirements
my $numregs;
my $class_ptr;
push(@obst_classdef, "#define N_CLASSES ".scalar(keys(%reg_classes))."\n");
+my $global_projnum_idx = 0;
+
# generate register type and class variable, init function and default requirements
foreach my $class_name (keys(%reg_classes)) {
my @class = @{ $reg_classes{"$class_name"} };
push(@obst_reginit, " ".$class_name."_regs[$idx].name = \"".$_->{"name"}."\";\n");
push(@obst_reginit, " ".$class_name."_regs[$idx].reg_class = $class_ptr;\n");
push(@obst_reginit, " ".$class_name."_regs[$idx].index = $idx;\n");
- push(@obst_reginit, " ".$class_name."_regs[$idx].type = ".$rt[$_->{"type"}].";\n\n");
+ push(@obst_reginit, " ".$class_name."_regs[$idx].type = ".$rt[$_->{"type"}].";\n");
+ if ($_->{"type"} == 2) {
+ # this is a caller saved register
+ push(@obst_reginit, " ia32_set_reg_projnum(&".$class_name."_regs[$idx], $global_projnum_idx, isa->reg_projnum_map);\n");
+ push(@obst_projnum_map, "&$arch\_default_req_$class_name\_".$_->{"name"});
+ $global_projnum_idx++;
+ }
+ push(@obst_reginit, "\n");
$idx++;
}
$class_idx++;
}
+push(@obst_regdef, "\n#define N_CALLER_SAVE_REGS ".scalar(@obst_projnum_map)."\n");
+
+push(@obst_header_all, "\nextern const $arch\_register_req_t *$arch\_projnum_reg_req_map[N_CALLER_SAVE_REGS];\n\n");
push(@obst_header_all, "\n/* node specific requirements */\n");
# generate node-register constraints
print OUT @obst_defreq_head, "\n";
-print OUT "void ".$arch."_register_init(void);\n\n";
+print OUT "void ".$arch."_register_init(void *isa_ptr);\n\n";
print OUT "\n#endif /* _GEN_$tmp\_REGALLOC_IF_T_H_ */\n";
* date: $creation_time
*/
-#include "gen_$arch\_regalloc_if_t.h"
+#include "gen_$arch\_regalloc_if.h"
+#include "bearch_ia32_t.h" /* we need this to put the caller saved registers into the isa set */
+#include "ia32_map_regs.h"
EOF
print OUT "arch_register_class_t $arch\_reg_classes[] = {\n ".join(",\n ", @obst_regclasses)."\n};\n\n";
-print OUT "void ".$arch."_register_init(void) {\n";
+print OUT "const $arch\_register_req_t *$arch\_projnum_reg_req_map[] = {\n ".join(",\n ", @obst_projnum_map)."\n};\n\n";
+
+print OUT "void ".$arch."_register_init(void *isa_ptr) {\n";
+print OUT " ia32_isa_t *isa = (ia32_isa_t *)isa_ptr;\n\n";
print OUT @obst_reginit;
print OUT "}\n\n";