Revert "This commit implements the Object Shapes technique in CRuby."

This reverts commit 68bc9e2e97d12f80df0d113e284864e225f771c2.

1 files changed, 0 insertions, 31 deletions

diff --git a/vm.c b/vm.c
index a52d3efa7b..0de461392f 100644
--- a/vm.c
+++ b/vm.c
@@ -26,7 +26,6 @@
 #include "internal/thread.h"
 #include "internal/vm.h"
 #include "internal/sanitizers.h"
-#include "internal/variable.h"
 #include "iseq.h"
 #include "mjit.h"
 #include "yjit.h"
@@ -4022,11 +4021,6 @@ Init_BareVM(void)
     rb_native_cond_initialize(&vm->ractor.sync.terminate_cond);
 }
 
-#ifndef _WIN32
-#include <unistd.h>
-#include <sys/mman.h>
-#endif
-
 void
 Init_vm_objects(void)
 {
@@ -4038,31 +4032,6 @@ Init_vm_objects(void)
     vm->mark_object_ary = rb_ary_hidden_new(128);
     vm->loading_table = st_init_strtable();
     vm->frozen_strings = st_init_table_with_size(&rb_fstring_hash_type, 10000);
-
-#if HAVE_MMAP
-    vm->shape_list = (rb_shape_t *)mmap(NULL, rb_size_mul_or_raise(SHAPE_BITMAP_SIZE * 32, sizeof(rb_shape_t), rb_eRuntimeError),
-                         PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-    if (vm->shape_list == MAP_FAILED) {
-        vm->shape_list = 0;
-    }
-#else
-    vm->shape_list = xcalloc(SHAPE_BITMAP_SIZE * 32, sizeof(rb_shape_t));
-#endif
-
-    if (!vm->shape_list) {
-        rb_memerror();
-    }
-
-    // Root shape
-    vm->root_shape = rb_shape_alloc(0, 0);
-    RUBY_ASSERT(rb_shape_id(vm->root_shape) == ROOT_SHAPE_ID);
-
-    // Frozen root shape
-    vm->frozen_root_shape = rb_shape_alloc(rb_make_internal_id(), vm->root_shape);
-    vm->frozen_root_shape->type = (uint8_t)SHAPE_FROZEN;
-    RUBY_ASSERT(rb_shape_id(vm->frozen_root_shape) == FROZEN_ROOT_SHAPE_ID);
-
-    vm->next_shape_id = 2;
 }
 
 /* Stub for builtin function when not building YJIT units*/