intel_decoder_init() initializes intel_batch_decode_ctx so later
we can call decode functions but it depends on data stored in
brw/elk_isa_info but that was being allocated in stack
of intel_decoder_init() then when the decode functions were executed
it was accessing garbage at the brw/elk_isa_info memory.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: ec2d20a70d ("intel/tools: Add helpers for decoder_init/disasm")
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34776>
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