[9] RFR (XXS): 8138861: C2 complains about unreasonably large method running Octane zlib in Nashorn

[Vladimir Ivanov]

https://bugs.openjdk.java.net/browse/JDK-8138861

There's an assert on the maximum size of a nmethod produced by C2.

I propose to simply remove it [1]. Maximum IR size limit (MaxNodeLimit) 
already establishes a limit on nmethod size (though indirectly).

Testing: manual (zlib w/ fastdebug binaries).

Best regards,
Vladimir Ivanov

[1]
diff --git a/src/share/vm/opto/output.cpp b/src/share/vm/opto/output.cpp
--- a/src/share/vm/opto/output.cpp
+++ b/src/share/vm/opto/output.cpp
@@ -1483,8 +1483,6 @@
    // Compute the size of the first block
    _first_block_size = blk_labels[1].loc_pos() - blk_labels[0].loc_pos();

-  assert(cb->insts_size() < 500000, "method is unreasonably large");
-
  #ifdef ASSERT
    for (uint i = 0; i < nblocks; i++) { // For all blocks
      if (jmp_target[i] != 0) {