Viewing file:  opt-4.c (1.08 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-require-effective-target tls_native } */
struct A
{
int a1;
int a2;
};
extern __thread const unsigned char *tcc1, **tcc2;
extern inline const unsigned char ** __attribute__ ((const))
foo (void)
{
const unsigned char **a = &tcc1;
if (*a == 0)
*a = *tcc2 + 128;
return a;
}
extern inline int
bar (const struct A *x)
{
int a;
if (x->a2 & 8)
return 0;
a = x->a1;
return a > 0 && ((*foo ())[a] & 64);
}
int
baz (const struct A *x, char *y)
{
const struct A *a;
for (a = x; !!a->a1; a++)
if (! (x->a2 & 8))
if (bar (a))
{
*y++ = a->a1;
if (x->a1)
*y++ = ':';
*y = '\0';
}
return 0;
}
/* Verify tcc1 and tcc2 variables show up only in the TLS access sequences. */
/* { dg-final { scan-assembler "tcc1@" { target i?86-*-* x86_64-*-* } } } */
/* { dg-final { scan-assembler "tcc2@" { target i?86-*-* x86_64-*-* } } } */
/* { dg-final { scan-assembler-not "tcc1\[^@\]" { target i?86-*-* x86_64-*-* } } } */
/* { dg-final { scan-assembler-not "tcc2\[^@\]" { target i?86-*-* x86_64-*-* } } } */
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