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-rw-r--r--tool/ruby_vm/views/_mjit_compile_ivar.erb10
1 files changed, 6 insertions, 4 deletions
diff --git a/tool/ruby_vm/views/_mjit_compile_ivar.erb b/tool/ruby_vm/views/_mjit_compile_ivar.erb
index ab8e885..3f75b57 100644
--- a/tool/ruby_vm/views/_mjit_compile_ivar.erb
+++ b/tool/ruby_vm/views/_mjit_compile_ivar.erb
@@ -13,17 +13,19 @@
% insn.opes.each_with_index do |ope, i|
MAYBE_UNUSED(<%= ope.fetch(:decl) %>) = (<%= ope.fetch(:type) %>)operands[<%= i %>];
% end
+% # compiler: Use copied IC to avoid race condition
+ IC ic_copy = &(status->is_entries + ((union iseq_inline_storage_entry *)ic - body->is_entries))->cache;
%
-% # compiler: Consider cfp->self as T_OBJECT if ic->ic_serial is set
- if (ic->ic_serial) {
+% # compiler: Consider cfp->self as T_OBJECT if ic_copy->ic_serial is set
+ if (ic_copy->ic_serial) {
% # JIT: optimize away motion of sp and pc. This path does not call rb_warning() and so it's always leaf and not `handles_sp`.
% # <%= render 'mjit_compile_pc_and_sp', locals: { insn: insn } -%>
%
% # JIT: prepare vm_getivar's arguments and variables
fprintf(f, "{\n");
fprintf(f, " VALUE obj = GET_SELF();\n");
- fprintf(f, " const rb_serial_t ic_serial = (rb_serial_t)%"PRI_SERIALT_PREFIX"u;\n", ic->ic_serial);
- fprintf(f, " const st_index_t index = %"PRIuSIZE";\n", ic->ic_value.index);
+ fprintf(f, " const rb_serial_t ic_serial = (rb_serial_t)%"PRI_SERIALT_PREFIX"u;\n", ic_copy->ic_serial);
+ fprintf(f, " const st_index_t index = %"PRIuSIZE";\n", ic_copy->ic_value.index);
% if insn.name == 'setinstancevariable'
fprintf(f, " VALUE val = stack[%d];\n", b->stack_size - 1);
% end