Hans Wennborg 40eb1b4055 Use TargetTransformInfo to control switch-to-lookup table transformation ... When the switch-to-lookup tables transform landed in SimplifyCFG, it was pointed out that this could be inappropriate for some targets. Since there was no way at the time for the pass to know anything about the target, an awkward reverse-transform was added in CodeGenPrepare that turned lookup tables back into switches for some targets. This patch uses the new TargetTransformInfo to determine if a switch should be transformed, and removes CodeGenPrepare::ConvertLoadToSwitch. llvm-svn: 167011		2012-10-30 11:23:25 +00:00
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lit.local.cfg
switch_to_lookup_table.ll