arm-scd42-1.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 16 行

/* Verify that mov is preferred on XScale for loading a 1 byte constant. */
/* { dg-do compile { target xscale-*-* } } */
/* { dg-options "-mcpu=xscale -O" } */

unsigned load1(void) __attribute__ ((naked));
unsigned load1(void)
{
    /* Best code would be:
       mov r0, =17
       mov pc, lr */

    return 17;
}

/* { dg-final { scan-assembler "mov\[ 	].*17" } } */