Sign extension with OP_LOADI32 in get_int_operand()
#5985
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Previously, the following code did not give the expected result. ``` % bin/mruby -e 'p "%08X" % ~(-1 << 16)' "..F0000FFFF" % ruby32 -e 'p "%08X" % ~(-1 << 24)' "00FFFFFF" ``` For information: this problem arises in the process of folding numbers through optimisation.
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Previously, the following code did not give the expected result.
For information: this problem arises in the process of folding numbers through optimisation.