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Hi RaghuB, > I wanted to clarify something about the application of optimizations by llvm-gcc, opt and llc. > > Will the following two sequences generate the same optimized bitcode? > a) $ llvm-gcc -O3 -c -emit-llvm foo.c -o foo.bc > b) $ llvm-gcc -O0 -c -emit-llvm foo.c -o foo.bc &g...

Hi all, I wanted to clarify something about the application of optimizations by llvm-gcc, opt and llc. Will the following two sequences generate the same optimized bitcode? a) $ llvm-gcc -O3 -c -emit-llvm foo.c -o foo.bc b) $ llvm-gcc -O0 -c -emit-llvm foo.c -o foo.bc $ opt -O3 foo.bc

...e optimizations are applied on a per-function basis. Is this correct ? ----- Original Message ----- From: "Duncan Sands" <baldrick at free.fr> To: llvmdev at cs.uiuc.edu Sent: Tuesday, December 13, 2011 2:46:23 AM Subject: Re: [LLVMdev] Optimization application by llvm-gcc, opt Hi RaghuB, > I wanted to clarify something about the application of optimizations by llvm-gcc, opt and llc. > > Will the following two sequences generate the same optimized bitcode? > a) $ llvm-gcc -O3 -c -emit-llvm foo.c -o foo.bc > b) $ llvm-gcc -O0 -c -emit-llvm foo.c -o foo.bc &g...