I like lli for quickly running some code (no temporaries!) $ clang -xc -c -emit-llvm -o - - | lli #include <stdio.h> int main(void) { puts(

I like lli for quickly running some code (no temporaries!) $ clang -xc -c -emit-llvm -o - - | lli #include <stdio.h> int main(void) { puts("hi"); }^D hi As a shell executable interpreter #!/usr/bin/env bash [ -f "$1" ] && file="$1" || file=/dev/stdin awk 'NR==1&&/^#!/{next}{print}' "$file" | \ clang -xc -c -emit-llvm $CFLAGS -o - - | \ lli -fake-argv0="$file" $IFLAGS - You can even "link" static archives $ IFLAGS=-extra-archive=/path/to/libz.a \ > CFLAGS+='-include stdio.h -include zlib.h' \ > c <<< 'int main(void){puts(zlibVersion());}' 1.2.8