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authorBjörn Gustavsson <[email protected]>2016-05-23 20:13:48 +0200
committerBjörn Gustavsson <[email protected]>2016-05-30 13:19:20 +0200
commitb1b27719d713c0e62d3242bbf1da0600ea0a651f (patch)
tree7376b00ada2e29bae532bd997a2a02fecec1faf6 /lib/inets/test
parent88632d70cc866b5e54589ccb9311c7c5a88ecb46 (diff)
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Eliminate unsafe use of Y registers
If the Core Erlang optimization were turned off (using no_copt), the optimization passes for Beam assembly could generate unsafe code that did not initialize all Y registers before (for example) a call instruction. To fix this, beam_dead should not attempt to remove stores to Y registers. That is not safe if there is an exception-generating instruction inside a try...catch block.
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