From 574f31161ed23fe88858e0947b789be41e05fb0e Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 24 Feb 2023 20:27:57 -1000 Subject: [PATCH] target/riscv: Drop temp_new Translators are no longer required to free tcg temporaries, therefore there's no need to record temps for later freeing. Replace the few uses with tcg_temp_new. Reviewed-by: Weiwei Li Reviewed-by: Daniel Henrique Barboza Signed-off-by: Richard Henderson --- target/riscv/insn_trans/trans_rvzfh.c.inc | 2 +- target/riscv/translate.c | 30 +++++------------------ 2 files changed, 7 insertions(+), 25 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvzfh.c.inc b/target/riscv/insn_trans/trans_rvzfh.c.inc index 85fc1aa822..f0d4df05f0 100644 --- a/target/riscv/insn_trans/trans_rvzfh.c.inc +++ b/target/riscv/insn_trans/trans_rvzfh.c.inc @@ -51,7 +51,7 @@ static bool trans_flh(DisasContext *ctx, arg_flh *a) decode_save_opc(ctx); t0 = get_gpr(ctx, a->rs1, EXT_NONE); if (a->imm) { - TCGv temp = temp_new(ctx); + TCGv temp = tcg_temp_new(); tcg_gen_addi_tl(temp, t0, a->imm); t0 = temp; } diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 7ed625a36f..747989ecad 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -101,11 +101,8 @@ typedef struct DisasContext { bool cfg_vta_all_1s; target_ulong vstart; bool vl_eq_vlmax; - uint8_t ntemp; CPUState *cs; TCGv zero; - /* Space for 3 operands plus 1 extra for address computation. */ - TCGv temp[4]; /* PointerMasking extension */ bool pm_mask_enabled; bool pm_base_enabled; @@ -312,12 +309,6 @@ static void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) * * Further, we may provide an extension for word operations. */ -static TCGv temp_new(DisasContext *ctx) -{ - assert(ctx->ntemp < ARRAY_SIZE(ctx->temp)); - return ctx->temp[ctx->ntemp++] = tcg_temp_new(); -} - static TCGv get_gpr(DisasContext *ctx, int reg_num, DisasExtend ext) { TCGv t; @@ -332,11 +323,11 @@ static TCGv get_gpr(DisasContext *ctx, int reg_num, DisasExtend ext) case EXT_NONE: break; case EXT_SIGN: - t = temp_new(ctx); + t = tcg_temp_new(); tcg_gen_ext32s_tl(t, cpu_gpr[reg_num]); return t; case EXT_ZERO: - t = temp_new(ctx); + t = tcg_temp_new(); tcg_gen_ext32u_tl(t, cpu_gpr[reg_num]); return t; default: @@ -364,7 +355,7 @@ static TCGv get_gprh(DisasContext *ctx, int reg_num) static TCGv dest_gpr(DisasContext *ctx, int reg_num) { if (reg_num == 0 || get_olen(ctx) < TARGET_LONG_BITS) { - return temp_new(ctx); + return tcg_temp_new(); } return cpu_gpr[reg_num]; } @@ -372,7 +363,7 @@ static TCGv dest_gpr(DisasContext *ctx, int reg_num) static TCGv dest_gprh(DisasContext *ctx, int reg_num) { if (reg_num == 0) { - return temp_new(ctx); + return tcg_temp_new(); } return cpu_gprh[reg_num]; } @@ -575,7 +566,7 @@ static void gen_jal(DisasContext *ctx, int rd, target_ulong imm) /* Compute a canonical address from a register plus offset. */ static TCGv get_address(DisasContext *ctx, int rs1, int imm) { - TCGv addr = temp_new(ctx); + TCGv addr = tcg_temp_new(); TCGv src1 = get_gpr(ctx, rs1, EXT_NONE); tcg_gen_addi_tl(addr, src1, imm); @@ -593,7 +584,7 @@ static TCGv get_address(DisasContext *ctx, int rs1, int imm) /* Compute a canonical address from a register plus reg offset. */ static TCGv get_address_indexed(DisasContext *ctx, int rs1, TCGv offs) { - TCGv addr = temp_new(ctx); + TCGv addr = tcg_temp_new(); TCGv src1 = get_gpr(ctx, rs1, EXT_NONE); tcg_gen_add_tl(addr, src1, offs); @@ -1197,8 +1188,6 @@ static void riscv_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) ctx->misa_mxl_max = env->misa_mxl_max; ctx->xl = FIELD_EX32(tb_flags, TB_FLAGS, XL); ctx->cs = cs; - ctx->ntemp = 0; - memset(ctx->temp, 0, sizeof(ctx->temp)); ctx->pm_mask_enabled = FIELD_EX32(tb_flags, TB_FLAGS, PM_MASK_ENABLED); ctx->pm_base_enabled = FIELD_EX32(tb_flags, TB_FLAGS, PM_BASE_ENABLED); ctx->itrigger = FIELD_EX32(tb_flags, TB_FLAGS, ITRIGGER); @@ -1223,18 +1212,11 @@ static void riscv_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu) DisasContext *ctx = container_of(dcbase, DisasContext, base); CPURISCVState *env = cpu->env_ptr; uint16_t opcode16 = translator_lduw(env, &ctx->base, ctx->base.pc_next); - int i; ctx->ol = ctx->xl; decode_opc(env, ctx, opcode16); ctx->base.pc_next = ctx->pc_succ_insn; - for (i = ctx->ntemp - 1; i >= 0; --i) { - tcg_temp_free(ctx->temp[i]); - ctx->temp[i] = NULL; - } - ctx->ntemp = 0; - /* Only the first insn within a TB is allowed to cross a page boundary. */ if (ctx->base.is_jmp == DISAS_NEXT) { if (ctx->itrigger || !is_same_page(&ctx->base, ctx->base.pc_next)) {