Function sendLoadRegToArg

src/e9tool/e9metadata.cpp:839–882

* Load a register to an arg register. */

 * Load a register to an arg register.
 */
static void sendLoadRegToArg(FILE *out, Register reg, CallInfo &info, int regno)
{
    size_t size = getRegSize(reg);
    if (info.isClobbered(reg))
    {
        switch (size)
        {
            case sizeof(int64_t):
            default:
                sendMovFromStackToR64(out, info.getOffset(reg), regno);
                break;
            case sizeof(int32_t):
                sendMovFromStack32ToR64(out, info.getOffset(reg), regno);
                break;
            case sizeof(int16_t):
                sendMovFromStack16ToR64(out, info.getOffset(reg), regno);
                break;
            case sizeof(int8_t):
                sendMovFromStack8ToR64(out,
                    info.getOffset(reg) + (isHighReg(reg)? 1: 0), regno);
                break;
        }
    }
    else
    {
        switch (size)
        {
            case sizeof(int64_t):
            default:
                sendMovFromR64ToR64(out, getRegIdx(reg), regno);
                break;
            case sizeof(int32_t):
                sendMovFromR32ToR64(out, getRegIdx(reg), regno);
                break;
            case sizeof(int16_t):
                sendMovFromR16ToR64(out, getRegIdx(reg), regno);
                break;
            case sizeof(int8_t):
                sendMovFromR8ToR64(out, getRegIdx(reg), isHighReg(reg),
                    regno);
                break;
        }
    }
}

/*
 * Emits instructions to load a register by value or reference.