sshao

$ ruby -v
ruby 1.8.7 (2012-02-08 patchlevel 358) [i686-darwin13.4.0]

# then we execute "ruby close_and_redirect.rb", and lsof at select points
# (see the two ruby scripts in this gist) during execution:

$ lsof -p 10623
COMMAND   PID   USER   FD   TYPE DEVICE  SIZE/OFF     NODE NAME
ruby    10623 Sophia    0u   CHR   16,3    0t1427      663 /dev/ttys003
ruby    10623 Sophia    1u   CHR   16,3    0t1427      663 /dev/ttys003

sshao

diff --git a/vm/llvm/jit_builder.cpp b/vm/llvm/jit_builder.cpp
index c479aab..6e6c90f 100644
--- a/vm/llvm/jit_builder.cpp
+++ b/vm/llvm/jit_builder.cpp
@@ -646,8 +646,14 @@ namespace jit {
         cint((sizeof(CallFrame) / sizeof(Object*)) + machine_code_->stack_size),
         "cfstk");
 
+    size_t upper = machine_code_->number_of_locals;
+

sshao

def method_yield(arg)
  yield(6, 7)
end

50_000.times do
  shadow = 2
  method_yield([]) { |shadow, k| }
end

sshao

/* call-seq:
 *   stylesheet.apply(document, {params}) -> XML::Document
 *
 * Apply this stylesheet transformation to the provided document.
 * This method may be invoked multiple times.
 *
 * Params:
 * *  document - An instance of an XML::Document
 * *  params - An optional hash table that specifies the values for xsl:param values embedded in the stylesheet.
 *

sshao

looks like same issue as https://github.com/rubinius/rubinius/issues/2920

trying to build rbx-1.3.3 (but same issue occurs when trying to build rbx master)

using chruby as switcher, ruby-2.1.2 installed via ruby-install 

OSX 10.9.4, same issue with both gcc and clang 

sshao

ruby -v
rubinius 1.3.3.n245 (1.8.7 2bcef791 2014-09-02) [x86_64-linux-gnu]

uname -a
Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.54-2 x86_64 GNU/Linux 

cat /etc/debian_version
7.4

sshao

diff --git a/vm/llvm/jit_visit.hpp b/vm/llvm/jit_visit.hpp
index ad91132..fdeebb7 100644
--- a/vm/llvm/jit_visit.hpp
+++ b/vm/llvm/jit_visit.hpp
@@ -2517,7 +2517,6 @@ use_send:
     void visit_cast_for_multi_block_arg() {
       JITStackArgs* inline_args = incoming_args();
       if(inline_args) {
-        if(inline_args->size() == 1) {
         std::vector<Type*> types;