generateCompilerSpecificCode - This is where we add conditional compilation directives to cater to specific compilers as need be.

isDirectAlloca - Define fixed sized allocas in the entry block as direct variables which are accessed with the & operator. This causes GCC to generat

isInlinableInst - Attempt to inline instructions into their uses to build trees as much as possible. To do this, we have to consistently decide what

isInlineAsm - Check if the instruction is a call to an inline asm chunk.

C compilers are pedantic about the exact type of main(), and this is usually an error rather than a warning. Since the C backend emits unsigned or exp

main - Entry point for the llc compiler.