diff options
| author | Richard Henderson <rth@twiddle.net> | 2016-11-22 14:15:04 +0100 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2017-01-10 08:49:59 -0800 |
| commit | 993508e43e6d180e9ba9b747a9657eac69aec5bb (patch) | |
| tree | 804431c5dd9d15743e248ff84ff03cb854817027 /tcg/i386 | |
| parent | 33e75fb9c8cc44165c8dad9093762ba728cc7596 (diff) | |
| download | qemu-993508e43e6d180e9ba9b747a9657eac69aec5bb.tar.gz | |
tcg/i386: Handle ctpop opcode
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/i386')
| -rw-r--r-- | tcg/i386/tcg-target.h | 5 | ||||
| -rw-r--r-- | tcg/i386/tcg-target.inc.c | 12 |
2 files changed, 14 insertions, 3 deletions
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h index b8f73f5382..21d96ec35c 100644 --- a/tcg/i386/tcg-target.h +++ b/tcg/i386/tcg-target.h @@ -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 diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c index 3650340fd9..01177a916d 100644 --- a/tcg/i386/tcg-target.inc.c +++ b/tcg/i386/tcg-target.inc.c @@ -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: @@ -2602,6 +2609,9 @@ static void tcg_target_init(TCGContext *s) need to probe for it. */ have_movbe = (c & bit_MOVBE) != 0; #endif +#ifdef bit_POPCNT + have_popcnt = (c & bit_POPCNT) != 0; +#endif } if (max >= 7) { |