Viewing file:  pcrel-sibcall-1.c (1.12 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-mdejagnu-cpu=power10 -O2" } */
/* { dg-require-effective-target powerpc_elfv2 } */
/* { dg-require-effective-target power10_ok } */
/* Test that potential sibcalls are generated when the caller does not
preserve the TOC, even for external calls; and that sibcalls are not
generated when the caller preserves the TOC but the callee does not. */
#pragma GCC target ("cpu=power10,pcrel")
int x (void) __attribute__((noinline));
int y (void) __attribute__((noinline));
int xx (void) __attribute__((noinline));
int x (void)
{
return 1;
}
int y (void)
{
return 2;
}
int sib_call (void)
{
return x ();
}
#pragma GCC target ("cpu=power9,no-pcrel")
int normal_call (void)
{
return y ();
}
int xx (void)
{
return 1;
}
extern int yy (void);
#pragma GCC target ("cpu=power10,pcrel")
int notoc_sibcall (void)
{
return xx ();
}
int extern_sibcall (void)
{
return yy ();
}
/* { dg-final { scan-assembler {\mb x@notoc\M} } } */
/* { dg-final { scan-assembler {\mbl y\M} } } */
/* { dg-final { scan-assembler {\mb xx@notoc\M} } } */
/* { dg-final { scan-assembler {\mb yy@notoc\M} } } */
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