simonmar 2004/09/15 04:45:25 PDT
Modified files:
ghc/compiler/codeGen CgUtils.hs
Log:
Add a couple of cases to mk_switch to catch the case when we have a
tag range that has a lot of default cases at either end, and we're not
using a single switch. In situations like this we want to eliminate
the default cases with an if-statement, before dealing with the rest
of the branches, which might then be suitable for a switch.
Also, ignore empty tag slots at either end of the range if there is no
default case.
This might work around a gcc 2.95 bug that we tickled with the
code being generated before.
Revision Changes Path
1.6 +40 -3 fptools/ghc/compiler/codeGen/CgUtils.hs
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