20101004 - MSVC Optimizing Static Constant Function Tables?

Nope. Would be nice if the MSVC compiler could optimize FunctionJump() like FunctionIf() below,

#include <stdio.h>

typedef void (*Function)(const int);

static __forceinline void FunctionA(const int input) { printf("a=%d\n", input); }
static __forceinline void FunctionB(const int input) { printf("b=%d\n", input); }

static const Function function[2] = { FunctionA, FunctionB };
    
static __forceinline void FunctionJump(const int input) { function[input](input); }

static __forceinline void FunctionIf(const int input) {
    if(input == 0) FunctionA(input);
    if(input == 1) FunctionB(input); }

void main(void) {
    FunctionJump(0);
    FunctionJump(1);
    FunctionIf(0);
    FunctionIf(1); }

Trimmed section from assembly output /FAs,

PUBLIC _main
; Function compile flags: /Ogtpy
_TEXT SEGMENT
_main PROC

; 17   :     FunctionJump(0);

 push 0
 call DWORD PTR _function

; 18   :     FunctionJump(1);

 push 1
 call DWORD PTR _function+4

; 19   :     FunctionIf(0);

 push 0
 push OFFSET $SG3833
 call _printf

; 20   :     FunctionIf(1); }

 push 1
 push OFFSET $SG3837
 call _printf
 add esp, 24     ; 00000018H
 xor eax, eax
 ret 0
_main ENDP