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tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops 

Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211221054105.178795-17-git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
WANG Xuerui 2021-12-21 13:40:50 +08:00 committed by Richard Henderson
parent fde6930160
commit a164010b05
3 changed files with 94 additions and 2 deletions
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1
tcg/loongarch64/tcg-target-con-set.h
View File

@ -17,6 +17,7 @@
C_O0_I1(r)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, ri)
C_O1_I2(r, r, rU)
C_O1_I2(r, r, rW)
C_O1_I2(r, 0, rZ)

91
tcg/loongarch64/tcg-target.c.inc
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@ -608,6 +608,85 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_clzctz(s, OPC_CTZ_D, a0, a1, a2, c2, false);
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/rotri */
if (c2) {
tcg_out_opc_rotri_w(s, a0, a1, (32 - a2) & 0x1f);
} else {
tcg_out_opc_sub_w(s, TCG_REG_TMP0, TCG_REG_ZERO, a2);
tcg_out_opc_rotr_w(s, a0, a1, TCG_REG_TMP0);
}
break;
case INDEX_op_rotl_i64:
/* transform into equivalent rotr/rotri */
if (c2) {
tcg_out_opc_rotri_d(s, a0, a1, (64 - a2) & 0x3f);
} else {
tcg_out_opc_sub_w(s, TCG_REG_TMP0, TCG_REG_ZERO, a2);
tcg_out_opc_rotr_d(s, a0, a1, TCG_REG_TMP0);
}
break;
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_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:
@ -657,6 +736,18 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
*/
return C_O1_I2(r, r, rC);
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_and_i64:
case INDEX_op_nor_i32:

4
tcg/loongarch64/tcg-target.h
View File

@ -96,7 +96,7 @@ typedef enum {
#define TCG_TARGET_HAS_div_i32 0
#define TCG_TARGET_HAS_rem_i32 0
#define TCG_TARGET_HAS_div2_i32 0
#define TCG_TARGET_HAS_rot_i32 0
#define TCG_TARGET_HAS_rot_i32 1
#define TCG_TARGET_HAS_deposit_i32 1
#define TCG_TARGET_HAS_extract_i32 1
#define TCG_TARGET_HAS_sextract_i32 0
@ -133,7 +133,7 @@ typedef enum {
#define TCG_TARGET_HAS_div_i64 0
#define TCG_TARGET_HAS_rem_i64 0
#define TCG_TARGET_HAS_div2_i64 0
#define TCG_TARGET_HAS_rot_i64 0
#define TCG_TARGET_HAS_rot_i64 1
#define TCG_TARGET_HAS_deposit_i64 1
#define TCG_TARGET_HAS_extract_i64 1
#define TCG_TARGET_HAS_sextract_i64 0