Manman Ren 020aba0c3b SimplifyCFG: preserve branch-weight metadata when creating a new switch from
a pair of switch/branch where both depend on the value of the same variable and
the default case of the first switch/branch goes to the second switch/branch.

Code clean up and fixed a few issues:
1> handling the case where some cases of the 2nd switch are invalidated
2> correctly calculate the weight for the 2nd switch when it is a conditional eq

Testing case is modified from Alastair's original patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163635 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11 17:43:35 +00:00
2012-09-02 14:42:56 +00:00
2012-09-06 22:55:11 +00:00
2012-09-11 16:34:08 +00:00
2012-09-11 07:50:40 +00:00
2012-07-11 17:34:12 +00:00

Low Level Virtual Machine (LLVM)
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LLVM backend for 6502
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