[LLVMdev] clang -O is removing statements

[Jiang LONG]

Hi,

I am using clang (latest) to compile C code and process the byte code.
However, if I use -O to optimize, it is removing statements for some
reason. I am wondering if there is a way to do the optimization of (alloca
and store) but still keep all the statements un-touched.

-Jiang
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