Viewing file:  20020103-1.c (1.44 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* 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-*-* rs6000-*-* alpha*-*-* x86_64-*-* } || { powerpc*-*-* && ilp32 } } } } */
/* { dg-require-effective-target fpic } */
/* { 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) || defined (__ppc)
#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]);
}
|
