gcc/testsuite/gcc.target/arm/scd42-2.c

   1 /* Verify that mov is preferred on XScale for loading a 2 byte constant. */
   2 /* { dg-do compile } */
   3 /* { dg-options "-mcpu=xscale -O" } */
   4 /* { dg-skip-if "Test is specific to the Xscale" { arm*-*-* } { "-march=*" } { "-march=xscale" } } */
   5 /* { dg-skip-if "Test is specific to the Xscale" { arm*-*-* } { "-mcpu=*" } { "-mcpu=xscale" } } */
   6 /* { dg-skip-if "Test is specific to ARM mode" { arm*-*-* } { "-mthumb" } { "" } } */
   7 /* { dg-require-effective-target arm32 } */
   8
   9 unsigned load2(void) __attribute__ ((naked));
  10 unsigned load2(void)
  11 {
  12     /* Best code would be:
  13        mov r0, =272
  14        add r0, r0, =1
  15        mov pc, lr */
  16
  17     return 273;
  18 }
  19
  20 /* { dg-final { scan-assembler "mov\[   ].*272" } } */