diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2020-09-05 12:54:37 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-06-04 11:50:11 -0700 |
| commit | f2b46c7162f86b05bbc05f1728b1d2a0e6a9e457 (patch) | |
| tree | 817564b554e54f255dec1355adb084ae8ef5b48f | |
| parent | dbbeff77645242241fe2296b88a7b1d3b3614ffe (diff) | |
| download | qemu-f2b46c7162f86b05bbc05f1728b1d2a0e6a9e457.zip | |
tcg/arm: Implement TCG_TARGET_HAS_bitsel_vec
NEON has 3 instructions implementing this 4 argument operation,
with each insn overlapping a different logical input onto the
destination register.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | tcg/arm/tcg-target-con-set.h | 1 | ||||
| -rw-r--r-- | tcg/arm/tcg-target.c.inc | 22 | ||||
| -rw-r--r-- | tcg/arm/tcg-target.h | 2 |
3 files changed, 22 insertions, 3 deletions
diff --git a/tcg/arm/tcg-target-con-set.h b/tcg/arm/tcg-target-con-set.h index cc006f99cd..d02797cbf4 100644 --- a/tcg/arm/tcg-target-con-set.h +++ b/tcg/arm/tcg-target-con-set.h @@ -34,6 +34,7 @@ C_O1_I2(w, w, w) C_O1_I2(w, w, wO) C_O1_I2(w, w, wV) C_O1_I2(w, w, wZ) +C_O1_I3(w, w, w, w) C_O1_I4(r, r, r, rI, rI) C_O1_I4(r, r, rIN, rIK, 0) C_O2_I1(r, r, l) diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc index 8193d768d6..3381240909 100644 --- a/tcg/arm/tcg-target.c.inc +++ b/tcg/arm/tcg-target.c.inc @@ -213,6 +213,10 @@ typedef enum { INSN_VSARI = 0xf2800010, /* VSHR.S */ INSN_VSHRI = 0xf3800010, /* VSHR.U */ + INSN_VBSL = 0xf3100110, + INSN_VBIT = 0xf3200110, + INSN_VBIF = 0xf3300110, + INSN_VTST = 0xf2000810, INSN_VDUP_G = 0xee800b10, /* VDUP (ARM core register) */ @@ -2423,7 +2427,8 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) return C_O1_I2(w, w, wV); case INDEX_op_cmp_vec: return C_O1_I2(w, w, wZ); - + case INDEX_op_bitsel_vec: + return C_O1_I3(w, w, w, w); default: g_assert_not_reached(); } @@ -2741,7 +2746,7 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, { TCGType type = vecl + TCG_TYPE_V64; unsigned q = vecl; - TCGArg a0, a1, a2; + TCGArg a0, a1, a2, a3; int cmode, imm8; a0 = args[0]; @@ -2892,6 +2897,18 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, } return; + case INDEX_op_bitsel_vec: + a3 = args[3]; + if (a0 == a3) { + tcg_out_vreg3(s, INSN_VBIT, q, 0, a0, a2, a1); + } else if (a0 == a2) { + tcg_out_vreg3(s, INSN_VBIF, q, 0, a0, a3, a1); + } else { + tcg_out_mov(s, type, a0, a1); + tcg_out_vreg3(s, INSN_VBSL, q, 0, a0, a2, a3); + } + return; + case INDEX_op_mov_vec: /* Always emitted via tcg_out_mov. */ case INDEX_op_dup_vec: /* Always emitted via tcg_out_dup_vec. */ default: @@ -2917,6 +2934,7 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece) case INDEX_op_sssub_vec: case INDEX_op_usadd_vec: case INDEX_op_ussub_vec: + case INDEX_op_bitsel_vec: return 1; case INDEX_op_abs_vec: case INDEX_op_cmp_vec: diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h index 4815a34e75..d6222ba2db 100644 --- a/tcg/arm/tcg-target.h +++ b/tcg/arm/tcg-target.h @@ -169,7 +169,7 @@ extern bool use_neon_instructions; #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 0 +#define TCG_TARGET_HAS_bitsel_vec 1 #define TCG_TARGET_HAS_cmpsel_vec 0 #define TCG_TARGET_DEFAULT_MO (0) |