patch applied (ghc): Fix #3170: Allow coalescing of the same node
during register allocation.
ben.lippmeier at anu.edu.au
Sat Apr 18 05:57:34 EDT 2009
Sat Apr 18 01:22:53 PDT 2009 Ben.Lippmeier at anu.edu.au
* Fix #3170: Allow coalescing of the same node during register allocation.
The x86 code generator sometimes generates nop moves like
movl %vI_a %vI_a, but we'll just ignore them for coalescing
purposes instead of emitting an error. It shouldn't hurt anything.
M ./compiler/utils/GraphOps.hs -3 +3
View patch online:
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