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/* Test program for bfloat16 of AVX 512 registers.
Copyright 2020-2022 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
typedef struct
{
float f[4];
} v4sd_t;
typedef struct
{
float f[8];
} v8sd_t;
typedef struct
{
float f[16];
} v16sd_t;
v4sd_t xmm_data[] =
{
{ { 0.0, 0.125, 0.25, 0.375 } },
{ { 0.5, 0.625, 0.75, 0.875 } },
{ { 1.0, 1.125, 1.25, 1.375 } },
{ { 1.5, 1.625, 1.75, 1.875 } },
{ { 2.0, 2.125, 2.25, 2.375 } },
{ { 2.5, 2.625, 2.75, 2.875 } },
{ { 3.0, 3.125, 3.25, 3.375 } },
{ { 3.5, 3.625, 3.75, 3.875 } },
};
v8sd_t ymm_data[] =
{
{ { 8.0, 8.25, 8.5, 8.75, 9.0, 9.25, 9.5, 9.75 } },
{ { 10.0, 10.25, 10.5, 10.75, 11.0, 11.25, 11.5, 11.75 } },
{ { 12.0, 12.25, 12.5, 12.75, 13.0, 13.25, 13.5, 13.75 } },
{ { 14.0, 14.25, 14.5, 14.75, 15.0, 15.25, 15.5, 15.75 } },
{ { 16.0, 16.25, 16.5, 16.75, 17.0, 17.25, 17.5, 17.75 } },
{ { 18.0, 18.25, 18.5, 18.75, 19.0, 19.25, 19.5, 19.75 } },
{ { 20.0, 20.25, 20.5, 20.75, 21.0, 21.25, 21.5, 21.75 } },
{ { 22.0, 22.25, 22.5, 22.75, 23.0, 23.25, 23.5, 23.75 } },
};
v16sd_t zmm_data[] =
{
{ { 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0, 23.5, 24.0, 24.5,
25.0, 25.5, 26.0, 26.5, 27.0, 27.5 } },
{ { 28.0, 28.5, 29.0, 29.5, 30.0, 30.5, 31.0, 31.5, 32.0, 32.5,
33.0, 33.5, 34.0, 34.5, 35.0, 35.5 } },
{ { 36.0, 36.5, 37.0, 37.5, 38.0, 38.5, 39.0, 39.5, 40.0, 40.5,
41.0, 41.5, 42.0, 42.5, 43.0, 43.5 } },
{ { 44.0, 44.5, 45.0, 45.5, 46.0, 46.5, 47.0, 47.5, 48.0, 48.5,
49.0, 49.5, 50.0, 50.5, 51.0, 51.5 } },
{ { 52.0, 52.5, 53.0, 53.5, 54.0, 54.5, 55.0, 55.5, 56.0, 56.5,
57.0, 57.5, 58.0, 58.5, 59.0, 59.5 } },
{ { 60.0, 60.5, 61.0, 61.5, 62.0, 62.5, 63.0, 63.5, 64.0, 64.5,
65.0, 65.5, 66.0, 66.5, 67.0, 67.5 } },
{ { 68.0, 68.5, 69.0, 69.5, 70.0, 70.5, 71.0, 71.5, 72.0, 72.5,
73.0, 73.5, 74.0, 74.5, 75.0, 75.5 } },
{ { 76.0, 76.5, 77.0, 77.5, 78.0, 78.5, 79.0, 79.5, 80.0, 80.5,
81.0, 81.5, 82.0, 82.5, 83.0, 83.5 } },
};
void
move_data_to_xmm_reg (void)
{
asm ("vmovups 0(%0), %%xmm0 \n\t"
"vmovups 16(%0), %%xmm1 \n\t"
"vmovups 32(%0), %%xmm2 \n\t"
"vmovups 48(%0), %%xmm3 \n\t"
"vmovups 64(%0), %%xmm4 \n\t"
"vmovups 80(%0), %%xmm5 \n\t"
"vmovups 96(%0), %%xmm6 \n\t"
"vmovups 112(%0), %%xmm7 \n\t"
: /* no output operands */
: "r" (xmm_data));
}
void
move_data_to_ymm_reg (void)
{
asm ("vmovups 0(%0), %%ymm0 \n\t"
"vmovups 32(%0), %%ymm1 \n\t"
"vmovups 64(%0), %%ymm2 \n\t"
"vmovups 96(%0), %%ymm3 \n\t"
"vmovups 128(%0), %%ymm4 \n\t"
"vmovups 160(%0), %%ymm5 \n\t"
"vmovups 192(%0), %%ymm6 \n\t"
"vmovups 224(%0), %%ymm7 \n\t"
: /* no output operands */
: "r" (ymm_data));
}
void
move_data_to_zmm_reg (void)
{
asm ("vmovups 0(%0), %%zmm0 \n\t"
"vmovups 64(%0), %%zmm1 \n\t"
"vmovups 128(%0), %%zmm2 \n\t"
"vmovups 192(%0), %%zmm3 \n\t"
"vmovups 256(%0), %%zmm4 \n\t"
"vmovups 320(%0), %%zmm5 \n\t"
"vmovups 384(%0), %%zmm6 \n\t"
"vmovups 448(%0), %%zmm7 \n\t"
: /* no output operands */
: "r" (zmm_data));
}
void
convert_xmm_from_float_to_bfloat16 (void)
{
asm("vcvtne2ps2bf16 %xmm0, %xmm1, %xmm0");
asm("vcvtne2ps2bf16 %xmm6, %xmm7, %xmm6");
}
void
convert_ymm_from_float_to_bfloat16 (void)
{
asm("vcvtne2ps2bf16 %ymm0, %ymm1, %ymm0");
asm("vcvtne2ps2bf16 %ymm6, %ymm7, %ymm6");
}
void
convert_zmm_from_float_to_bfloat16 (void)
{
asm("vcvtne2ps2bf16 %zmm0, %zmm1, %zmm0");
asm("vcvtne2ps2bf16 %zmm6, %zmm7, %zmm6");
}
int
main (int argc, char **argv)
{
/* Move initial values from array to registers and read from XMM regs. */
move_data_to_xmm_reg ();
convert_xmm_from_float_to_bfloat16 ();
asm ("nop"); /* first breakpoint here */
/* Move initial values from array to registers and read from YMM regs. */
move_data_to_ymm_reg ();
convert_ymm_from_float_to_bfloat16 ();
asm ("nop"); /* second breakpoint here */
/* Move initial values from array to registers and read from ZMM regs. */
move_data_to_zmm_reg ();
convert_zmm_from_float_to_bfloat16 ();
asm ("nop"); /* third breakpoint here */
return 0;
}
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