mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tcg/i386: Handle ctpop opcode

Browse Source 
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-11-22 14:15:04 +01:00
parent 33e75fb9c8
commit 993508e43e
2 changed files with 14 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
tcg/i386/tcg-target.h
View File

@ -76,6 +76,7 @@ typedef enum {
#endif
extern bool have_bmi1;
extern bool have_popcnt;
/* optional instructions */
#define TCG_TARGET_HAS_div2_i32 1
@ -95,7 +96,7 @@ extern bool have_bmi1;
#define TCG_TARGET_HAS_nor_i32 0
#define TCG_TARGET_HAS_clz_i32 1
#define TCG_TARGET_HAS_ctz_i32 1
#define TCG_TARGET_HAS_ctpop_i32 0
#define TCG_TARGET_HAS_ctpop_i32 have_popcnt
#define TCG_TARGET_HAS_deposit_i32 1
#define TCG_TARGET_HAS_extract_i32 1
#define TCG_TARGET_HAS_sextract_i32 1
@ -130,7 +131,7 @@ extern bool have_bmi1;
#define TCG_TARGET_HAS_nor_i64 0
#define TCG_TARGET_HAS_clz_i64 1
#define TCG_TARGET_HAS_ctz_i64 1
#define TCG_TARGET_HAS_ctpop_i64 0
#define TCG_TARGET_HAS_ctpop_i64 have_popcnt
#define TCG_TARGET_HAS_deposit_i64 1
#define TCG_TARGET_HAS_extract_i64 1
#define TCG_TARGET_HAS_sextract_i64 0

12
tcg/i386/tcg-target.inc.c
View File

@ -130,9 +130,10 @@ static bool have_movbe;
# define have_movbe 0
#endif
/* We need this symbol in tcg-target.h, and we can't properly conditionalize
/* We need these symbols in tcg-target.h, and we can't properly conditionalize
it there. Therefore we always define the variable. */
bool have_bmi1;
bool have_popcnt;
#if defined(CONFIG_CPUID_H) && defined(bit_BMI2)
static bool have_bmi2;
@ -337,6 +338,7 @@ static inline int tcg_target_const_match(tcg_target_long val, TCGType type,
#define OPC_MOVZBL (0xb6 | P_EXT)
#define OPC_MOVZWL (0xb7 | P_EXT)
#define OPC_POP_r32 (0x58)
#define OPC_POPCNT (0xb8 | P_EXT | P_SIMDF3)
#define OPC_PUSH_r32 (0x50)
#define OPC_PUSH_Iv (0x68)
#define OPC_PUSH_Ib (0x6a)
@ -2083,6 +2085,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
OP_32_64(clz):
tcg_out_clz(s, rexw, args[0], args[1], args[2], const_args[2]);
break;
OP_32_64(ctpop):
tcg_out_modrm(s, OPC_POPCNT + rexw, a0, a1);
break;
case INDEX_op_brcond_i32:
tcg_out_brcond32(s, a2, a0, a1, const_args[1], arg_label(args[3]), 0);
@ -2398,6 +2403,8 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op)
case INDEX_op_extract_i32:
case INDEX_op_extract_i64:
case INDEX_op_sextract_i32:
case INDEX_op_ctpop_i32:
case INDEX_op_ctpop_i64:
return &r_r;
case INDEX_op_deposit_i32:
@ -2601,6 +2608,9 @@ static void tcg_target_init(TCGContext *s)
/* MOVBE is only available on Intel Atom and Haswell CPUs, so we
need to probe for it. */
have_movbe = (c & bit_MOVBE) != 0;
#endif
#ifdef bit_POPCNT
have_popcnt = (c & bit_POPCNT) != 0;
#endif
}