k0kubun	2019-03-19 02:28:23 +0900 (Tue, 19 Mar 2019)

  New Revision: 67301

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=67301

  Log:
    Use alloca for stack_size_for_pos as well
    
    to eliminate necessity of error check and `free`

  Modified files:
    trunk/mjit_compile.c
Index: mjit_compile.c
===================================================================
--- mjit_compile.c	(revision 67300)
+++ mjit_compile.c	(revision 67301)
@@ -207,9 +207,7 @@ mjit_compile(FILE *f, const rb_iseq_t *i https://github.com/ruby/ruby/blob/trunk/mjit_compile.c#L207
     struct compile_status status;
     status.success = true;
     status.local_stack_p = !body->catch_except_p;
-    status.stack_size_for_pos = (int *)malloc(sizeof(int) * body->iseq_size);
-    if (status.stack_size_for_pos == NULL)
-        return false;
+    status.stack_size_for_pos = (int *)alloca(sizeof(int) * body->iseq_size);
     memset(status.stack_size_for_pos, NOT_COMPILED_STACK_SIZE, sizeof(int) * body->iseq_size);
 
     status.cc_entries = NULL;
@@ -260,8 +258,6 @@ mjit_compile(FILE *f, const rb_iseq_t *i https://github.com/ruby/ruby/blob/trunk/mjit_compile.c#L258
     compile_insns(f, body, 0, 0, &status);
     compile_cancel_handler(f, body, &status);
     fprintf(f, "\n} /* end of %s */\n", funcname);
-
-    free(status.stack_size_for_pos);
     return status.success;
 }
 

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