Subversion Repositories scarts

/* Verify that constant equivalences get reloaded properly, either by being

   spilled to the stack, or regenerated, but not dropped to memory.  */

/* { dg-do compile { target i?86-*-* powerpc-*-* rs6000-*-* alpha*-*-* x86_64-*-*} } */

/* { dg-options "-O2 -fpic -fno-omit-frame-pointer -fno-asynchronous-unwind-tables" } */

/* { dg-final { scan-assembler-not "LC\[0-9\]" } } */

/* Clobber all call-saved registers that can hold a pointer value.  */

#if defined(__i386__)

#define clobber \

  asm volatile("#asm" : : : "si", "di")

#elif defined(__powerpc__) || defined(__PPC__) || defined(__ppc__) || defined(__POWERPC__) || defined(PPC) || defined (_IBMR2)

#define clobber \

  asm volatile("#asm" : : : "14", "15", "16", "17", "18", "19", "20", \

               "21", "22", "23", "24", "25", "26", "27", "28", "29")

#elif defined(__alpha__)

#define clobber \

  asm volatile("#asm" : : : "$9", "$10", "$11", "$12", "$13", "$14", \

               "$f2", "$f3", "$f4", "$f5", "$f6", "$f7", "$f8", "$f9")

#elif defined(__x86_64__)

#define clobber \

  asm volatile("#asm" : : : "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", "r11")

#else

#error no clobber macro defined

#endif

extern void f1(int, int, int);

extern void f2(int*, int*, int*);

extern int ext;

static int loc_small;

static int loc_big[100];

void bar(void)

{

  f1(ext, loc_small, loc_big[0]);

  clobber;

  f2(&ext, &loc_small, &loc_big[0]);

}