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f5adc48
2010 Jan 26
2
[LLVMdev] some llvm/clang missed optimizations
...ah.edu/embarrassing/jan_10/harvest/source/E8/E88C5111.shtml
Performance of clang's output will be fine but this is a major code size
lose.
2.
Destruction of stupid loops is incomplete, sometimes due to phase
ordering problems:
http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/FC/FCADC848.shtml
Sometimes not:
http://embed.cs.utah.edu/embarrassing/jan_10/harvest/source/EC/ECC74C0C.shtml
This is both a speed and size issue. Probably this kind of code most
often appears in machine-generated C or where loops contain logging code
that is conditionally compiled away.
3.
Repetitive...