llvm dev - Aug 2010 - [LLVMdev] What is the gcc optimization flag for "ENABLE_OPTIMIZED=1" in LLVM?

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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Heming Cui <heming at cs.columbia.edu> writes:
>     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"?
Try

make VERBOSE=1

That would show on the console the full command used for compiling each
file.
>     If I want to manually modify the flag for
"ENABLE_OPTIMIZED=1" in LLVM,
> what file should I refer to?
Makefile.rules ?