Viewing file:  sparc-ret-3.c (1.41 KB) -rw-r--r--
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/* PR target/80968 */
/* { dg-do compile } */
/* { dg-skip-if "no register windows" { *-*-* } { "-mflat" } { "" } } */
/* { dg-require-effective-target ilp32 } */
/* { dg-options "-mcpu=ultrasparc -O" } */
/* Make sure references to the stack frame do not slip into the delay slot
of a return instruction. */
struct crypto_shash {
unsigned int descsize;
};
struct crypto_shash *tfm;
struct shash_desc {
struct crypto_shash *tfm;
unsigned int flags;
void *__ctx[] __attribute__((aligned(8)));
};
static inline unsigned int crypto_shash_descsize(struct crypto_shash *tfm)
{
return tfm->descsize;
}
static inline void *shash_desc_ctx(struct shash_desc *desc)
{
return desc->__ctx;
}
#define SHASH_DESC_ON_STACK(shash, ctx) \
char __##shash##_desc[sizeof(struct shash_desc) + \
crypto_shash_descsize(ctx)] __attribute__((aligned(8))); \
struct shash_desc *shash = (struct shash_desc *)__##shash##_desc
extern int crypto_shash_update(struct shash_desc *, const void *, unsigned int);
unsigned int bug(unsigned int crc, const void *address, unsigned int length)
{
SHASH_DESC_ON_STACK(shash, tfm);
unsigned int *ctx = (unsigned int *)shash_desc_ctx(shash);
int err;
shash->tfm = tfm;
shash->flags = 0;
*ctx = crc;
err = crypto_shash_update(shash, address, length);
return *ctx;
}
/* { dg-final { scan-assembler "ld\[ \t\]*\\\[%\[a-z0-9\]*\\+\[0-9\]*\\\], %i0\n\[^\n\]*return\[ \t\]*%i7\\+8" } } */
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