/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (c) 2021 Loongson Technology Corporation Limited */ static bool trans_b(DisasContext *ctx, arg_b *a) { gen_goto_tb(ctx, 0, ctx->base.pc_next + a->offs); ctx->base.is_jmp = DISAS_NORETURN; return true; } static bool trans_bl(DisasContext *ctx, arg_bl *a) { tcg_gen_movi_tl(cpu_gpr[1], ctx->base.pc_next + 4); gen_goto_tb(ctx, 0, ctx->base.pc_next + a->offs); ctx->base.is_jmp = DISAS_NORETURN; return true; } static bool trans_jirl(DisasContext *ctx, arg_jirl *a) { TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); tcg_gen_addi_tl(cpu_pc, src1, a->imm); tcg_gen_movi_tl(dest, ctx->base.pc_next + 4); gen_set_gpr(a->rd, dest, EXT_NONE); tcg_gen_lookup_and_goto_ptr(); ctx->base.is_jmp = DISAS_NORETURN; return true; } static void gen_bc(DisasContext *ctx, TCGv src1, TCGv src2, target_long offs, TCGCond cond) { TCGLabel *l = gen_new_label(); tcg_gen_brcond_tl(cond, src1, src2, l); gen_goto_tb(ctx, 1, ctx->base.pc_next + 4); gen_set_label(l); gen_goto_tb(ctx, 0, ctx->base.pc_next + offs); ctx->base.is_jmp = DISAS_NORETURN; } static bool gen_rr_bc(DisasContext *ctx, arg_rr_offs *a, TCGCond cond) { TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); TCGv src2 = gpr_src(ctx, a->rd, EXT_NONE); gen_bc(ctx, src1, src2, a->offs, cond); return true; } static bool gen_rz_bc(DisasContext *ctx, arg_r_offs *a, TCGCond cond) { TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); TCGv src2 = tcg_constant_tl(0); gen_bc(ctx, src1, src2, a->offs, cond); return true; } static bool gen_cz_bc(DisasContext *ctx, arg_c_offs *a, TCGCond cond) { TCGv src1 = tcg_temp_new(); TCGv src2 = tcg_constant_tl(0); tcg_gen_ld8u_tl(src1, cpu_env, offsetof(CPULoongArchState, cf[a->cj])); gen_bc(ctx, src1, src2, a->offs, cond); return true; } TRANS(beq, gen_rr_bc, TCG_COND_EQ) TRANS(bne, gen_rr_bc, TCG_COND_NE) TRANS(blt, gen_rr_bc, TCG_COND_LT) TRANS(bge, gen_rr_bc, TCG_COND_GE) TRANS(bltu, gen_rr_bc, TCG_COND_LTU) TRANS(bgeu, gen_rr_bc, TCG_COND_GEU) TRANS(beqz, gen_rz_bc, TCG_COND_EQ) TRANS(bnez, gen_rz_bc, TCG_COND_NE) TRANS(bceqz, gen_cz_bc, TCG_COND_EQ) TRANS(bcnez, gen_cz_bc, TCG_COND_NE)