Viewing file:  struct_vect_24.c (1.43 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-require-effective-target supports_stack_clash_protection } */
/* { dg-options "-O3 -fopenmp-simd -fstack-clash-protection --param stack-clash-protection-guard-size=16" } */
#include <stdint.h>
#define N 50
#define S 2 * 64 * 1024
/* Invoke X (P##n) for n in [0, 9]. */
#define REPEAT8(X, P) \
X (P##0) X (P##1) X (P##2) X (P##3) X (P##4) X (P##5) X (P##6) X (P##7) \
X (P##8) X (P##9)
/* Invoke X (n) for all n in [0, 49]. */
#define REPEAT50(X) \
REPEAT8 (X, ) REPEAT8 (X, 1) REPEAT8 (X, 2) REPEAT8 (X, 3) REPEAT8 (X, 4)
/* Try to force some spilling. */
#define DECLARE(N) int src##N = src[N * 4];
#define INC(N) dest[i] += src##N;
#define TEST_LOOP(NAME, TYPE) \
void __attribute__ ((noinline, noclone, simd)) \
NAME (TYPE *restrict dest, TYPE *restrict src) \
{ \
REPEAT50 (DECLARE); \
volatile char foo[S]; \
foo[S-1]=1; \
for (int i = 0; i < N; i++) \
{ \
REPEAT50 (INC); \
} \
}
#define TEST(NAME) \
TEST_LOOP (NAME##_i32, int32_t) \
TEST_LOOP (NAME##_i64, int64_t) \
TEST_LOOP (NAME##_f32, float) \
TEST_LOOP (NAME##_f64, double)
TEST (test)
/* Check the vectorized loop for stack clash probing. */
/* { dg-final { scan-assembler-times {str\s+xzr, \[sp, 0\]} 4 } } */
/* { dg-final { scan-assembler-times {cmp\s+x[0-9]+, 61440} 4 } } */
/* { dg-final { scan-assembler-times {sub\s+x[0-9]+, x[0-9]+, 61440} 4 } } */
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