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[Qemu-devel] [PATCH 06/34] tcg/i386: Implement vector saturating arithme
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 06/34] tcg/i386: Implement vector saturating arithmetic |
Date: |
Mon, 17 Dec 2018 22:38:43 -0800 |
Only MO_8 and MO_16 are implemented, since that's all the
instruction set provides.
Signed-off-by: Richard Henderson <address@hidden>
---
tcg/i386/tcg-target.h | 2 +-
tcg/i386/tcg-target.inc.c | 42 +++++++++++++++++++++++++++++++++++++++
2 files changed, 43 insertions(+), 1 deletion(-)
diff --git a/tcg/i386/tcg-target.h b/tcg/i386/tcg-target.h
index 44381062e6..f50234d97b 100644
--- a/tcg/i386/tcg-target.h
+++ b/tcg/i386/tcg-target.h
@@ -185,7 +185,7 @@ extern bool have_avx2;
#define TCG_TARGET_HAS_shv_vec 0
#define TCG_TARGET_HAS_cmp_vec 1
#define TCG_TARGET_HAS_mul_vec 1
-#define TCG_TARGET_HAS_sat_vec 0
+#define TCG_TARGET_HAS_sat_vec 1
#define TCG_TARGET_deposit_i32_valid(ofs, len) \
(((ofs) == 0 && (len) == 8) || ((ofs) == 8 && (len) == 8) || \
diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c
index c21c3272f2..3571483bae 100644
--- a/tcg/i386/tcg-target.inc.c
+++ b/tcg/i386/tcg-target.inc.c
@@ -377,6 +377,10 @@ static inline int tcg_target_const_match(tcg_target_long
val, TCGType type,
#define OPC_PADDW (0xfd | P_EXT | P_DATA16)
#define OPC_PADDD (0xfe | P_EXT | P_DATA16)
#define OPC_PADDQ (0xd4 | P_EXT | P_DATA16)
+#define OPC_PADDSB (0xec | P_EXT | P_DATA16)
+#define OPC_PADDSW (0xed | P_EXT | P_DATA16)
+#define OPC_PADDUB (0xdc | P_EXT | P_DATA16)
+#define OPC_PADDUW (0xdd | P_EXT | P_DATA16)
#define OPC_PAND (0xdb | P_EXT | P_DATA16)
#define OPC_PANDN (0xdf | P_EXT | P_DATA16)
#define OPC_PBLENDW (0x0e | P_EXT3A | P_DATA16)
@@ -408,6 +412,10 @@ static inline int tcg_target_const_match(tcg_target_long
val, TCGType type,
#define OPC_PSUBW (0xf9 | P_EXT | P_DATA16)
#define OPC_PSUBD (0xfa | P_EXT | P_DATA16)
#define OPC_PSUBQ (0xfb | P_EXT | P_DATA16)
+#define OPC_PSUBSB (0xe8 | P_EXT | P_DATA16)
+#define OPC_PSUBSW (0xe9 | P_EXT | P_DATA16)
+#define OPC_PSUBUB (0xd8 | P_EXT | P_DATA16)
+#define OPC_PSUBUW (0xd9 | P_EXT | P_DATA16)
#define OPC_PUNPCKLBW (0x60 | P_EXT | P_DATA16)
#define OPC_PUNPCKLWD (0x61 | P_EXT | P_DATA16)
#define OPC_PUNPCKLDQ (0x62 | P_EXT | P_DATA16)
@@ -2591,9 +2599,21 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
static int const add_insn[4] = {
OPC_PADDB, OPC_PADDW, OPC_PADDD, OPC_PADDQ
};
+ static int const ssadd_insn[4] = {
+ OPC_PADDSB, OPC_PADDSW, OPC_UD2, OPC_UD2
+ };
+ static int const usadd_insn[4] = {
+ OPC_PADDSB, OPC_PADDSW, OPC_UD2, OPC_UD2
+ };
static int const sub_insn[4] = {
OPC_PSUBB, OPC_PSUBW, OPC_PSUBD, OPC_PSUBQ
};
+ static int const sssub_insn[4] = {
+ OPC_PSUBSB, OPC_PSUBSW, OPC_UD2, OPC_UD2
+ };
+ static int const ussub_insn[4] = {
+ OPC_PSUBSB, OPC_PSUBSW, OPC_UD2, OPC_UD2
+ };
static int const mul_insn[4] = {
OPC_UD2, OPC_PMULLW, OPC_PMULLD, OPC_UD2
};
@@ -2631,9 +2651,21 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_add_vec:
insn = add_insn[vece];
goto gen_simd;
+ case INDEX_op_ssadd_vec:
+ insn = ssadd_insn[vece];
+ goto gen_simd;
+ case INDEX_op_usadd_vec:
+ insn = usadd_insn[vece];
+ goto gen_simd;
case INDEX_op_sub_vec:
insn = sub_insn[vece];
goto gen_simd;
+ case INDEX_op_sssub_vec:
+ insn = sssub_insn[vece];
+ goto gen_simd;
+ case INDEX_op_ussub_vec:
+ insn = ussub_insn[vece];
+ goto gen_simd;
case INDEX_op_mul_vec:
insn = mul_insn[vece];
goto gen_simd;
@@ -3007,6 +3039,10 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode
op)
case INDEX_op_or_vec:
case INDEX_op_xor_vec:
case INDEX_op_andc_vec:
+ case INDEX_op_ssadd_vec:
+ case INDEX_op_usadd_vec:
+ case INDEX_op_sssub_vec:
+ case INDEX_op_ussub_vec:
case INDEX_op_cmp_vec:
case INDEX_op_x86_shufps_vec:
case INDEX_op_x86_blend_vec:
@@ -3074,6 +3110,12 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type,
unsigned vece)
}
return 1;
+ case INDEX_op_ssadd_vec:
+ case INDEX_op_usadd_vec:
+ case INDEX_op_sssub_vec:
+ case INDEX_op_ussub_vec:
+ return vece <= MO_16;
+
default:
return 0;
}
--
2.17.2
- [Qemu-devel] [PATCH 09/34] target/arm: Use vector minmax expanders for aarch64, (continued)
- [Qemu-devel] [PATCH 09/34] target/arm: Use vector minmax expanders for aarch64, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 08/34] tcg/i386: Implement vector minmax arithmetic, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 03/34] tcg: Add gvec expanders for nand, nor, eqv, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 15/34] target/ppc: merge ppc_vsr_t and ppc_avr_t union types, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 17/34] target/ppc: convert VMX logical instructions to use vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 28/34] target/ppc: Remove vscr_nj and vscr_sat, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 06/34] tcg/i386: Implement vector saturating arithmetic,
Richard Henderson <=
- [Qemu-devel] [PATCH 26/34] target/ppc: Pass integer to helper_mtvscr, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 12/34] target/ppc: introduce get_avr64() and set_avr64() helpers for VMX register access, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 05/34] tcg: Add opcodes for vector saturated arithmetic, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 10/34] target/arm: Use vector minmax expanders for aarch32, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 21/34] target/ppc: nand, nor, eqv are now generic vector operations, Richard Henderson, 2018/12/18
- [Qemu-devel] [PATCH 31/34] target/ppc: Add set_vscr_sat, Richard Henderson, 2018/12/18