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[PATCH 16/30] tcg/loongarch: Implement shl/shr/sar/rotl/rotr ops
From: |
WANG Xuerui |
Subject: |
[PATCH 16/30] tcg/loongarch: Implement shl/shr/sar/rotl/rotr ops |
Date: |
Mon, 20 Sep 2021 16:04:37 +0800 |
Signed-off-by: WANG Xuerui <git@xen0n.name>
---
tcg/loongarch/tcg-target-con-set.h | 1 +
tcg/loongarch/tcg-target.c.inc | 91 ++++++++++++++++++++++++++++++
2 files changed, 92 insertions(+)
diff --git a/tcg/loongarch/tcg-target-con-set.h
b/tcg/loongarch/tcg-target-con-set.h
index 417c97549a..8630d1ee6e 100644
--- a/tcg/loongarch/tcg-target-con-set.h
+++ b/tcg/loongarch/tcg-target-con-set.h
@@ -17,6 +17,7 @@
C_O0_I1(r)
C_O1_I1(r, r)
C_O1_I2(r, r, r)
+C_O1_I2(r, r, ri)
C_O1_I2(r, r, rU)
C_O1_I2(r, r, rZ)
C_O1_I2(r, 0, rZ)
diff --git a/tcg/loongarch/tcg-target.c.inc b/tcg/loongarch/tcg-target.c.inc
index e817964a7e..acbd0e65ef 100644
--- a/tcg/loongarch/tcg-target.c.inc
+++ b/tcg/loongarch/tcg-target.c.inc
@@ -513,6 +513,85 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_clzctz(s, OPC_CTZ_D, a0, a1, a2);
break;
+ case INDEX_op_shl_i32:
+ if (c2) {
+ tcg_out_opc_slli_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_sll_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_shl_i64:
+ if (c2) {
+ tcg_out_opc_slli_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_sll_d(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_shr_i32:
+ if (c2) {
+ tcg_out_opc_srli_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_srl_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_shr_i64:
+ if (c2) {
+ tcg_out_opc_srli_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_srl_d(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_sar_i32:
+ if (c2) {
+ tcg_out_opc_srai_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_sra_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_sar_i64:
+ if (c2) {
+ tcg_out_opc_srai_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_sra_d(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_rotl_i32:
+ /* transform into equivalent rotr_i32 */
+ if (c2) {
+ a2 = 32 - a2;
+ } else {
+ tcg_out_opc_sub_w(s, a2, TCG_REG_ZERO, a2);
+ tcg_out_opc_addi_w(s, a2, a2, 32);
+ }
+ /* fallthrough */
+ case INDEX_op_rotr_i32:
+ if (c2) {
+ tcg_out_opc_rotri_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_rotr_w(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_rotl_i64:
+ /* transform into equivalent rotr_i64 */
+ if (c2) {
+ a2 = 64 - a2;
+ } else {
+ tcg_out_opc_sub_w(s, a2, TCG_REG_ZERO, a2);
+ tcg_out_opc_addi_w(s, a2, a2, 64);
+ }
+ /* fallthrough */
+ case INDEX_op_rotr_i64:
+ if (c2) {
+ tcg_out_opc_rotri_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_rotr_d(s, a0, a1, a2);
+ }
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -557,6 +636,18 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode
op)
/* LoongArch insns for these ops don't have reg-imm forms */
return C_O1_I2(r, r, r);
+ case INDEX_op_shl_i32:
+ case INDEX_op_shl_i64:
+ case INDEX_op_shr_i32:
+ case INDEX_op_shr_i64:
+ case INDEX_op_sar_i32:
+ case INDEX_op_sar_i64:
+ case INDEX_op_rotl_i32:
+ case INDEX_op_rotl_i64:
+ case INDEX_op_rotr_i32:
+ case INDEX_op_rotr_i64:
+ return C_O1_I2(r, r, ri);
+
case INDEX_op_and_i32:
case INDEX_op_or_i32:
case INDEX_op_xor_i32:
--
2.33.0
- Re: [PATCH 24/30] tcg/loongarch: Implement tcg_target_qemu_prologue, (continued)
- [PATCH 28/30] configure, meson.build: Mark support for 64-bit LoongArch hosts, WANG Xuerui, 2021/09/20
- [PATCH 23/30] tcg/loongarch: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops, WANG Xuerui, 2021/09/20
- [PATCH 07/30] tcg/loongarch: Implement necessary relocation operations, WANG Xuerui, 2021/09/20
- [PATCH 10/30] tcg/loongarch: Implement goto_ptr, WANG Xuerui, 2021/09/20
- [PATCH 16/30] tcg/loongarch: Implement shl/shr/sar/rotl/rotr ops,
WANG Xuerui <=
- [PATCH 03/30] tcg/loongarch: Add the tcg-target.h file, WANG Xuerui, 2021/09/20
- [PATCH 22/30] tcg/loongarch: Implement simple load/store ops, WANG Xuerui, 2021/09/20
- [PATCH 26/30] tcg/loongarch: Implement tcg_target_init, WANG Xuerui, 2021/09/20
- [PATCH 29/30] linux-user: Add host dependency for 64-bit LoongArch, WANG Xuerui, 2021/09/20