get bitcode(.bc) from source in llvm/clang

get bytecode from C++ program. 

test.cpp

int main() {   const int count = 3;   const int value = 5;   int result = count + value;   return 0; }

get bytecode.

clang++ -c -emit-llvm test.cpp -o testbyte.bc -S

read bytecode file (testbyte.bc).

vim testbyte.bc

testbyte.bc

. . . ; Function Attrs: nounwind uwtable define i32 @main() #0 { entry:   %retval = alloca i32, align 4   %count = alloca i32, align 4   %value = alloca i32, align 4   %result = alloca i32, align 4   store i32 0, i32* %retval   store i32 3, i32* %count, align 4   store i32 5, i32* %value, align 4   store i32 8, i32* %result, align 4   ret i32 0 } . . .