Viewing file:  test_passing_unions.c (3.13 KB) -rw-r--r--
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#include "avx-check.h"
#include "args.h"
struct IntegerRegisters iregs;
struct FloatRegisters fregs;
unsigned int num_iregs, num_fregs;
union un1
{
__m256 x;
float f;
};
union un2
{
__m256 x;
double d;
};
union un3
{
__m256 x;
__m128 v;
};
union un4
{
__m256 x;
long double ld;
};
union un5
{
__m256 x;
int i;
};
void
check_union_passing1(union un1 u1 ATTRIBUTE_UNUSED,
union un1 u2 ATTRIBUTE_UNUSED,
union un1 u3 ATTRIBUTE_UNUSED,
union un1 u4 ATTRIBUTE_UNUSED,
union un1 u5 ATTRIBUTE_UNUSED,
union un1 u6 ATTRIBUTE_UNUSED,
union un1 u7 ATTRIBUTE_UNUSED,
union un1 u8 ATTRIBUTE_UNUSED)
{
check_m256_arguments;
}
void
check_union_passing2(union un2 u1 ATTRIBUTE_UNUSED,
union un2 u2 ATTRIBUTE_UNUSED,
union un2 u3 ATTRIBUTE_UNUSED,
union un2 u4 ATTRIBUTE_UNUSED,
union un2 u5 ATTRIBUTE_UNUSED,
union un2 u6 ATTRIBUTE_UNUSED,
union un2 u7 ATTRIBUTE_UNUSED,
union un2 u8 ATTRIBUTE_UNUSED)
{
check_m256_arguments;
}
void
check_union_passing3(union un3 u1 ATTRIBUTE_UNUSED,
union un3 u2 ATTRIBUTE_UNUSED,
union un3 u3 ATTRIBUTE_UNUSED,
union un3 u4 ATTRIBUTE_UNUSED,
union un3 u5 ATTRIBUTE_UNUSED,
union un3 u6 ATTRIBUTE_UNUSED,
union un3 u7 ATTRIBUTE_UNUSED,
union un3 u8 ATTRIBUTE_UNUSED)
{
check_m256_arguments;
}
void
check_union_passing4(union un4 u ATTRIBUTE_UNUSED)
{
/* Check the passing on the stack by comparing the address of the
stack elements to the expected place on the stack. */
assert ((unsigned long)&u.x == rsp+8);
assert ((unsigned long)&u.ld == rsp+8);
}
void
check_union_passing5(union un5 u ATTRIBUTE_UNUSED)
{
/* Check the passing on the stack by comparing the address of the
stack elements to the expected place on the stack. */
assert ((unsigned long)&u.x == rsp+8);
assert ((unsigned long)&u.i == rsp+8);
}
#define check_union_passing1 WRAP_CALL(check_union_passing1)
#define check_union_passing2 WRAP_CALL(check_union_passing2)
#define check_union_passing3 WRAP_CALL(check_union_passing3)
#define check_union_passing4 WRAP_CALL(check_union_passing4)
#define check_union_passing5 WRAP_CALL(check_union_passing5)
static void
avx_test (void)
{
union un1 u1[8];
union un2 u2[8];
union un3 u3[8];
union un4 u4;
union un5 u5;
int i;
for (i = 0; i < 8; i++)
u1[i].x = (__m256){32+i, 0, i, 0, -i, 0, i - 12, i + 8};
clear_struct_registers;
for (i = 0; i < 8; i++)
(&fregs.ymm0)[i]._m256[0] = u1[i].x;
num_fregs = 8;
check_union_passing1(u1[0], u1[1], u1[2], u1[3],
u1[4], u1[5], u1[6], u1[7]);
clear_struct_registers;
for (i = 0; i < 8; i++)
{
u2[i].x = u1[i].x;
(&fregs.ymm0)[i]._m256[0] = u2[i].x;
}
num_fregs = 8;
check_union_passing2(u2[0], u2[1], u2[2], u2[3],
u2[4], u2[5], u2[6], u2[7]);
clear_struct_registers;
for (i = 0; i < 8; i++)
{
u3[i].x = u1[i].x;
(&fregs.ymm0)[i]._m256[0] = u3[i].x;
}
num_fregs = 8;
check_union_passing3(u3[0], u3[1], u3[2], u3[3],
u3[4], u3[5], u3[6], u3[7]);
check_union_passing4(u4);
check_union_passing5(u5);
}
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