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/* SPDX-License-Identifier: MIT */
/*
* Define target-specific opcode support
* Copyright (c) 2008 Fabrice Bellard
*/
#ifndef TCG_TARGET_HAS_H
#define TCG_TARGET_HAS_H
#include "host/cpuinfo.h"
#define have_bmi1 (cpuinfo & CPUINFO_BMI1)
#define have_popcnt (cpuinfo & CPUINFO_POPCNT)
#define have_avx1 (cpuinfo & CPUINFO_AVX1)
#define have_avx2 (cpuinfo & CPUINFO_AVX2)
#define have_movbe (cpuinfo & CPUINFO_MOVBE)
/*
* There are interesting instructions in AVX512, so long as we have AVX512VL,
* which indicates support for EVEX on sizes smaller than 512 bits.
*/
#define have_avx512vl ((cpuinfo & CPUINFO_AVX512VL) && \
(cpuinfo & CPUINFO_AVX512F))
#define have_avx512bw ((cpuinfo & CPUINFO_AVX512BW) && have_avx512vl)
#define have_avx512dq ((cpuinfo & CPUINFO_AVX512DQ) && have_avx512vl)
#define have_avx512vbmi2 ((cpuinfo & CPUINFO_AVX512VBMI2) && have_avx512vl)
/* optional instructions */
#if TCG_TARGET_REG_BITS == 64
/* Keep 32-bit values zero-extended in a register. */
#define TCG_TARGET_HAS_extr_i64_i32 1
#endif
#define TCG_TARGET_HAS_qemu_ldst_i128 \
(TCG_TARGET_REG_BITS == 64 && (cpuinfo & CPUINFO_ATOMIC_VMOVDQA))
#define TCG_TARGET_HAS_tst 1
/* We do not support older SSE systems, only beginning with AVX1. */
#define TCG_TARGET_HAS_v64 have_avx1
#define TCG_TARGET_HAS_v128 have_avx1
#define TCG_TARGET_HAS_v256 have_avx2
#define TCG_TARGET_HAS_andc_vec 1
#define TCG_TARGET_HAS_orc_vec have_avx512vl
#define TCG_TARGET_HAS_nand_vec have_avx512vl
#define TCG_TARGET_HAS_nor_vec have_avx512vl
#define TCG_TARGET_HAS_eqv_vec have_avx512vl
#define TCG_TARGET_HAS_not_vec have_avx512vl
#define TCG_TARGET_HAS_neg_vec 0
#define TCG_TARGET_HAS_abs_vec 1
#define TCG_TARGET_HAS_roti_vec have_avx512vl
#define TCG_TARGET_HAS_rots_vec 0
#define TCG_TARGET_HAS_rotv_vec have_avx512vl
#define TCG_TARGET_HAS_shi_vec 1
#define TCG_TARGET_HAS_shs_vec 1
#define TCG_TARGET_HAS_shv_vec have_avx2
#define TCG_TARGET_HAS_mul_vec 1
#define TCG_TARGET_HAS_sat_vec 1
#define TCG_TARGET_HAS_minmax_vec 1
#define TCG_TARGET_HAS_bitsel_vec have_avx512vl
#define TCG_TARGET_HAS_cmpsel_vec 1
#define TCG_TARGET_HAS_tst_vec have_avx512bw
#define TCG_TARGET_deposit_valid(type, ofs, len) \
(((ofs) == 0 && ((len) == 8 || (len) == 16)) || \
(TCG_TARGET_REG_BITS == 32 && (ofs) == 8 && (len) == 8))
/*
* Check for the possibility of low byte/word extraction, high-byte extraction
* and zero-extending 32-bit right-shift.
*
* We cannot sign-extend from high byte to 64-bits without using the
* REX prefix that explicitly excludes access to the high-byte registers.
*/
static inline bool
tcg_target_sextract_valid(TCGType type, unsigned ofs, unsigned len)
{
switch (ofs) {
case 0:
switch (len) {
case 8:
case 16:
return true;
case 32:
return type == TCG_TYPE_I64;
}
return false;
case 8:
return len == 8 && type == TCG_TYPE_I32;
}
return false;
}
#define TCG_TARGET_sextract_valid tcg_target_sextract_valid
static inline bool
tcg_target_extract_valid(TCGType type, unsigned ofs, unsigned len)
{
if (type == TCG_TYPE_I64 && ofs + len == 32) {
return true;
}
switch (ofs) {
case 0:
return len == 8 || len == 16;
case 8:
return len == 8;
}
return false;
}
#define TCG_TARGET_extract_valid tcg_target_extract_valid
#endif
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