Viewing file:  bfloat16_scalar_2.c (1.76 KB) -rw-r--r--
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/* { dg-do assemble { target { aarch64*-*-* } } } */
/* { dg-require-effective-target arm_v8_2a_bf16_neon_ok } */
/* { dg-additional-options "-march=armv8.2-a -O3 --save-temps -std=gnu90" } */
/* { dg-final { check-function-bodies "**" "" } } */
#include <arm_bf16.h>
#pragma GCC push_options
#pragma GCC target ("+bf16")
/*
**stacktest1:
** sub sp, sp, #16
** str h0, \[sp, 14\]
** ldr h0, \[sp, 14\]
** add sp, sp, 16
** ret
*/
bfloat16_t stacktest1 (bfloat16_t __a)
{
volatile bfloat16_t b = __a;
return b;
}
/*
**bfloat_mov_ww:
** mov v1.h\[0\], v2.h\[0\]
** ret
*/
void bfloat_mov_ww (void)
{
register bfloat16_t x asm ("h2");
register bfloat16_t y asm ("h1");
asm volatile ("" : "=w" (x));
y = x;
asm volatile ("" :: "w" (y));
}
/*
**bfloat_mov_rw:
** dup v1.4h, w1
** ret
*/
void bfloat_mov_rw (void)
{
register bfloat16_t x asm ("w1");
register bfloat16_t y asm ("h1");
asm volatile ("" : "=r" (x));
y = x;
asm volatile ("" :: "w" (y));
}
/*
**bfloat_mov_wr:
** umov w1, v1.h\[0\]
** ret
*/
void bfloat_mov_wr (void)
{
register bfloat16_t x asm ("h1");
register bfloat16_t y asm ("w1");
asm volatile ("" : "=w" (x));
y = x;
asm volatile ("" :: "r" (y));
}
/*
**bfloat_mov_rr:
** mov w1, w2
** ret
*/
void bfloat_mov_rr (void)
{
register bfloat16_t x asm ("w2");
register bfloat16_t y asm ("w1");
asm volatile ("" : "=r" (x));
y = x;
asm volatile ("" :: "r" (y));
}
/*
**bfloat_mov_rm:
** strh w2, \[x0\]
** ret
*/
void bfloat_mov_rm (bfloat16_t *ptr)
{
register bfloat16_t x asm ("w2");
asm volatile ("" : "=r" (x));
*ptr = x;
}
/*
**bfloat_mov_mr:
** ldrh w2, \[x0\]
** ret
*/
void bfloat_mov_mr (bfloat16_t *ptr)
{
register bfloat16_t y asm ("w2");
y = *ptr;
asm volatile ("" :: "r" (y));
}
#pragma GCC pop_options
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