#3170: -fregs-graph: GraphOps.coalesceNodes: can't coalesce the same node.
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Reporter: igloo | Owner: benl
Type: bug | Status: closed
Priority: high | Milestone: 6.12.1
Component: Compiler | Version: 6.10.2
Severity: normal | Resolution: fixed
Keywords: | Difficulty: Unknown
Testcase: | Os: Unknown/Multiple
Architecture: Unknown/Multiple |
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Changes (by benl):
* status: assigned => closed
* resolution: => fixed
Comment:
Sat Apr 18 18:22:53 EST 2009 [email protected]
* 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.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3170#comment:2>
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