[LLVMdev] What is the gcc optimization flag for "ENABLE_OPTIMIZED=1" in LLVM?

[Heming Cui]

Dear LLVM developers,
    I am wondering the gcc optimization flag for "ENABLE_OPTIMIZED=1" in
LLVM is -O2 or -O3.
    And what is the flag if I set "ENABLE_OPTIMIZED=0"?
    If I want to manually modify the flag for "ENABLE_OPTIMIZED=1" in LLVM,
what file should I refer to?

-- 
Regards,
Heming Cui
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