mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tcg/riscv: Support ADD.UW, SEXT.B, SEXT.H, ZEXT.H from Zba+Zbb

Browse Source 
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-04-25 16:04:16 +01:00
parent 99f4ec6eab
commit d1c3f4e9ed
1 changed files with 24 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
tcg/riscv/tcg-target.c.inc
View File

@ -593,26 +593,42 @@ static void tcg_out_ext8u(TCGContext *s, TCGReg ret, TCGReg arg)
static void tcg_out_ext16u(TCGContext *s, TCGReg ret, TCGReg arg)
{
tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 16);
tcg_out_opc_imm(s, OPC_SRLIW, ret, ret, 16);
if (have_zbb) {
tcg_out_opc_reg(s, OPC_ZEXT_H, ret, arg, TCG_REG_ZERO);
} else {
tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 16);
tcg_out_opc_imm(s, OPC_SRLIW, ret, ret, 16);
}
}
static void tcg_out_ext32u(TCGContext *s, TCGReg ret, TCGReg arg)
{
tcg_out_opc_imm(s, OPC_SLLI, ret, arg, 32);
tcg_out_opc_imm(s, OPC_SRLI, ret, ret, 32);
if (have_zba) {
tcg_out_opc_reg(s, OPC_ADD_UW, ret, arg, TCG_REG_ZERO);
} else {
tcg_out_opc_imm(s, OPC_SLLI, ret, arg, 32);
tcg_out_opc_imm(s, OPC_SRLI, ret, ret, 32);
}
}
static void tcg_out_ext8s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
{
tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 24);
tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 24);
if (have_zbb) {
tcg_out_opc_imm(s, OPC_SEXT_B, ret, arg, 0);
} else {
tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 24);
tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 24);
}
}
static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
{
tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 16);
tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 16);
if (have_zbb) {
tcg_out_opc_imm(s, OPC_SEXT_H, ret, arg, 0);
} else {
tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 16);
tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 16);
}
}
static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg)