Krzysztof Parzyszek ddafa2cd5f [Hexagon] Check for offset overflow when reserving scavenging slots
Scavenging slots were only reserved when pseudo-instruction expansion in
frame lowering created new virtual registers. It is possible to still
need a scavenging slot even if no virtual registers were created, in cases
where the stack is large enough to overflow instruction offsets.

llvm-svn: 277355
2016-08-01 17:15:30 +00:00
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