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-rw-r--r--tool/ruby_vm/views/_insn_stack_increase.erb2
1 files changed, 1 insertions, 1 deletions
diff --git a/tool/ruby_vm/views/_insn_stack_increase.erb b/tool/ruby_vm/views/_insn_stack_increase.erb
index 566e06c95e..bfe0a3dc6b 100644
--- a/tool/ruby_vm/views/_insn_stack_increase.erb
+++ b/tool/ruby_vm/views/_insn_stack_increase.erb
@@ -23,7 +23,7 @@ insn_stack_increase_dispatch(enum ruby_vminsn_type insn, const VALUE *opes)
}.join(', ') -%>,
% end
};
- char c = t[insn];
+ signed char c = t[insn];
ASSERT_VM_INSTRUCTION_SIZE(t);
if (c != -127) {