Nuno Lopes 78f8ef4217 instcombine: merge the functions that remove dead allocas and dead mallocs/callocs/... ...

This patch removes ~70 lines in InstCombineLoadStoreAlloca.cpp and makes both functions a bit more aggressive than before :)
In theory, we can be more aggressive when removing an alloca than a malloc, because an alloca pointer should never escape, but we are not taking advantage of this anyway

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159952 91177308-0d34-0410-b5e6-96231b3b80d8

2012-07-09 18:38:20 +00:00

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