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Tue, 17 Aug 2021 14:18:09 -0700 (PDT) Received: from localhost.localdomain ([173.197.107.15]) by smtp.gmail.com with ESMTPSA id q1sm2978637pjl.44.2021.08.17.14.18.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Aug 2021 14:18:08 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 01/21] target/riscv: Use tcg_constant_* Date: Tue, 17 Aug 2021 11:17:43 -1000 Message-Id: <20210817211803.283639-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210817211803.283639-1-richard.henderson@linaro.org> References: <20210817211803.283639-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1033; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1033.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alistair Francis , bin.meng@windriver.com, qemu-riscv@nongnu.org, zhiwei_liu@c-sky.com, =?utf-8?q?Philippe_Mathieu-Dau?= =?utf-8?q?d=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Replace uses of tcg_const_* with the allocate and free close together. Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis Signed-off-by: Richard Henderson Reviewed-by: Bin Meng --- target/riscv/translate.c | 36 ++++---------- target/riscv/insn_trans/trans_rvf.c.inc | 3 +- target/riscv/insn_trans/trans_rvv.c.inc | 65 +++++++++---------------- 3 files changed, 34 insertions(+), 70 deletions(-) diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 6983be5723..20a55c92fb 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -104,20 +104,16 @@ static void gen_nanbox_s(TCGv_i64 out, TCGv_i64 in) */ static void gen_check_nanbox_s(TCGv_i64 out, TCGv_i64 in) { - TCGv_i64 t_max = tcg_const_i64(0xffffffff00000000ull); - TCGv_i64 t_nan = tcg_const_i64(0xffffffff7fc00000ull); + TCGv_i64 t_max = tcg_constant_i64(0xffffffff00000000ull); + TCGv_i64 t_nan = tcg_constant_i64(0xffffffff7fc00000ull); tcg_gen_movcond_i64(TCG_COND_GEU, out, in, t_max, in, t_nan); - tcg_temp_free_i64(t_max); - tcg_temp_free_i64(t_nan); } static void generate_exception(DisasContext *ctx, int excp) { tcg_gen_movi_tl(cpu_pc, ctx->base.pc_next); - TCGv_i32 helper_tmp = tcg_const_i32(excp); - gen_helper_raise_exception(cpu_env, helper_tmp); - tcg_temp_free_i32(helper_tmp); + gen_helper_raise_exception(cpu_env, tcg_constant_i32(excp)); ctx->base.is_jmp = DISAS_NORETURN; } @@ -125,17 +121,13 @@ static void generate_exception_mtval(DisasContext *ctx, int excp) { tcg_gen_movi_tl(cpu_pc, ctx->base.pc_next); tcg_gen_st_tl(cpu_pc, cpu_env, offsetof(CPURISCVState, badaddr)); - TCGv_i32 helper_tmp = tcg_const_i32(excp); - gen_helper_raise_exception(cpu_env, helper_tmp); - tcg_temp_free_i32(helper_tmp); + gen_helper_raise_exception(cpu_env, tcg_constant_i32(excp)); ctx->base.is_jmp = DISAS_NORETURN; } static void gen_exception_debug(void) { - TCGv_i32 helper_tmp = tcg_const_i32(EXCP_DEBUG); - gen_helper_raise_exception(cpu_env, helper_tmp); - tcg_temp_free_i32(helper_tmp); + gen_helper_raise_exception(cpu_env, tcg_constant_i32(EXCP_DEBUG)); } /* Wrapper around tcg_gen_exit_tb that handles single stepping */ @@ -229,7 +221,7 @@ static void gen_div(TCGv ret, TCGv source1, TCGv source2) */ cond1 = tcg_temp_new(); cond2 = tcg_temp_new(); - zeroreg = tcg_const_tl(0); + zeroreg = tcg_constant_tl(0); resultopt1 = tcg_temp_new(); tcg_gen_movi_tl(resultopt1, (target_ulong)-1); @@ -250,7 +242,6 @@ static void gen_div(TCGv ret, TCGv source1, TCGv source2) tcg_temp_free(cond1); tcg_temp_free(cond2); - tcg_temp_free(zeroreg); tcg_temp_free(resultopt1); } @@ -259,7 +250,7 @@ static void gen_divu(TCGv ret, TCGv source1, TCGv source2) TCGv cond1, zeroreg, resultopt1; cond1 = tcg_temp_new(); - zeroreg = tcg_const_tl(0); + zeroreg = tcg_constant_tl(0); resultopt1 = tcg_temp_new(); tcg_gen_setcondi_tl(TCG_COND_EQ, cond1, source2, 0); @@ -272,7 +263,6 @@ static void gen_divu(TCGv ret, TCGv source1, TCGv source2) tcg_gen_divu_tl(ret, source1, source2); tcg_temp_free(cond1); - tcg_temp_free(zeroreg); tcg_temp_free(resultopt1); } @@ -282,7 +272,7 @@ static void gen_rem(TCGv ret, TCGv source1, TCGv source2) cond1 = tcg_temp_new(); cond2 = tcg_temp_new(); - zeroreg = tcg_const_tl(0); + zeroreg = tcg_constant_tl(0); resultopt1 = tcg_temp_new(); tcg_gen_movi_tl(resultopt1, 1L); @@ -302,7 +292,6 @@ static void gen_rem(TCGv ret, TCGv source1, TCGv source2) tcg_temp_free(cond1); tcg_temp_free(cond2); - tcg_temp_free(zeroreg); tcg_temp_free(resultopt1); } @@ -310,7 +299,7 @@ static void gen_remu(TCGv ret, TCGv source1, TCGv source2) { TCGv cond1, zeroreg, resultopt1; cond1 = tcg_temp_new(); - zeroreg = tcg_const_tl(0); + zeroreg = tcg_constant_tl(0); resultopt1 = tcg_temp_new(); tcg_gen_movi_tl(resultopt1, (target_ulong)1); @@ -323,7 +312,6 @@ static void gen_remu(TCGv ret, TCGv source1, TCGv source2) source1); tcg_temp_free(cond1); - tcg_temp_free(zeroreg); tcg_temp_free(resultopt1); } @@ -384,15 +372,11 @@ static inline void mark_fs_dirty(DisasContext *ctx) { } static void gen_set_rm(DisasContext *ctx, int rm) { - TCGv_i32 t0; - if (ctx->frm == rm) { return; } ctx->frm = rm; - t0 = tcg_const_i32(rm); - gen_helper_set_rounding_mode(cpu_env, t0); - tcg_temp_free_i32(t0); + gen_helper_set_rounding_mode(cpu_env, tcg_constant_i32(rm)); } static int ex_plus_1(DisasContext *ctx, int nf) diff --git a/target/riscv/insn_trans/trans_rvf.c.inc b/target/riscv/insn_trans/trans_rvf.c.inc index db1c0c9974..89f78701e7 100644 --- a/target/riscv/insn_trans/trans_rvf.c.inc +++ b/target/riscv/insn_trans/trans_rvf.c.inc @@ -200,12 +200,11 @@ static bool trans_fsgnjn_s(DisasContext *ctx, arg_fsgnjn_s *a) * Replace bit 31 in rs1 with inverse in rs2. * This formulation retains the nanboxing of rs1. */ - mask = tcg_const_i64(~MAKE_64BIT_MASK(31, 1)); + mask = tcg_constant_i64(~MAKE_64BIT_MASK(31, 1)); tcg_gen_nor_i64(rs2, rs2, mask); tcg_gen_and_i64(rs1, mask, rs1); tcg_gen_or_i64(cpu_fpr[a->rd], rs1, rs2); - tcg_temp_free_i64(mask); tcg_temp_free_i64(rs2); } tcg_temp_free_i64(rs1); diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index 83d9a285ba..a8e7272487 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -33,7 +33,7 @@ static bool trans_vsetvl(DisasContext *ctx, arg_vsetvl *a) /* Using x0 as the rs1 register specifier, encodes an infinite AVL */ if (a->rs1 == 0) { /* As the mask is at least one bit, RV_VLEN_MAX is >= VLMAX */ - s1 = tcg_const_tl(RV_VLEN_MAX); + s1 = tcg_constant_tl(RV_VLEN_MAX); } else { s1 = tcg_temp_new(); gen_get_gpr(s1, a->rs1); @@ -59,13 +59,13 @@ static bool trans_vsetvli(DisasContext *ctx, arg_vsetvli *a) return false; } - s2 = tcg_const_tl(a->zimm); + s2 = tcg_constant_tl(a->zimm); dst = tcg_temp_new(); /* Using x0 as the rs1 register specifier, encodes an infinite AVL */ if (a->rs1 == 0) { /* As the mask is at least one bit, RV_VLEN_MAX is >= VLMAX */ - s1 = tcg_const_tl(RV_VLEN_MAX); + s1 = tcg_constant_tl(RV_VLEN_MAX); } else { s1 = tcg_temp_new(); gen_get_gpr(s1, a->rs1); @@ -76,7 +76,6 @@ static bool trans_vsetvli(DisasContext *ctx, arg_vsetvli *a) ctx->base.is_jmp = DISAS_NORETURN; tcg_temp_free(s1); - tcg_temp_free(s2); tcg_temp_free(dst); return true; } @@ -183,7 +182,7 @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data, * The first part is vlen in bytes, encoded in maxsz of simd_desc. * The second part is lmul, encoded in data of simd_desc. */ - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); gen_get_gpr(base, rs1); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); @@ -194,7 +193,6 @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data, tcg_temp_free_ptr(dest); tcg_temp_free_ptr(mask); tcg_temp_free(base); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -334,7 +332,7 @@ static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2, mask = tcg_temp_new_ptr(); base = tcg_temp_new(); stride = tcg_temp_new(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); gen_get_gpr(base, rs1); gen_get_gpr(stride, rs2); @@ -347,7 +345,6 @@ static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2, tcg_temp_free_ptr(mask); tcg_temp_free(base); tcg_temp_free(stride); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -462,7 +459,7 @@ static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, mask = tcg_temp_new_ptr(); index = tcg_temp_new_ptr(); base = tcg_temp_new(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); gen_get_gpr(base, rs1); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); @@ -475,7 +472,6 @@ static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, tcg_temp_free_ptr(mask); tcg_temp_free_ptr(index); tcg_temp_free(base); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -594,7 +590,7 @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data, dest = tcg_temp_new_ptr(); mask = tcg_temp_new_ptr(); base = tcg_temp_new(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); gen_get_gpr(base, rs1); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); @@ -605,7 +601,6 @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data, tcg_temp_free_ptr(dest); tcg_temp_free_ptr(mask); tcg_temp_free(base); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -671,7 +666,7 @@ static bool amo_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, mask = tcg_temp_new_ptr(); index = tcg_temp_new_ptr(); base = tcg_temp_new(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); gen_get_gpr(base, rs1); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); @@ -684,7 +679,6 @@ static bool amo_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, tcg_temp_free_ptr(mask); tcg_temp_free_ptr(index); tcg_temp_free(base); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -874,7 +868,7 @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm, data = FIELD_DP32(data, VDATA, MLEN, s->mlen); data = FIELD_DP32(data, VDATA, VM, vm); data = FIELD_DP32(data, VDATA, LMUL, s->lmul); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); tcg_gen_addi_ptr(src2, cpu_env, vreg_ofs(s, vs2)); @@ -886,7 +880,6 @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm, tcg_temp_free_ptr(mask); tcg_temp_free_ptr(src2); tcg_temp_free(src1); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -1014,14 +1007,14 @@ static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm, mask = tcg_temp_new_ptr(); src2 = tcg_temp_new_ptr(); if (zx) { - src1 = tcg_const_tl(imm); + src1 = tcg_constant_tl(imm); } else { - src1 = tcg_const_tl(sextract64(imm, 0, 5)); + src1 = tcg_constant_tl(sextract64(imm, 0, 5)); } data = FIELD_DP32(data, VDATA, MLEN, s->mlen); data = FIELD_DP32(data, VDATA, VM, vm); data = FIELD_DP32(data, VDATA, LMUL, s->lmul); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); tcg_gen_addi_ptr(src2, cpu_env, vreg_ofs(s, vs2)); @@ -1032,8 +1025,6 @@ static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm, tcg_temp_free_ptr(dest); tcg_temp_free_ptr(mask); tcg_temp_free_ptr(src2); - tcg_temp_free(src1); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -1080,9 +1071,8 @@ GEN_OPIVI_GVEC_TRANS(vadd_vi, 0, vadd_vx, addi) static void tcg_gen_gvec_rsubi(unsigned vece, uint32_t dofs, uint32_t aofs, int64_t c, uint32_t oprsz, uint32_t maxsz) { - TCGv_i64 tmp = tcg_const_i64(c); + TCGv_i64 tmp = tcg_constant_i64(c); tcg_gen_gvec_rsubs(vece, dofs, aofs, tmp, oprsz, maxsz); - tcg_temp_free_i64(tmp); } GEN_OPIVI_GVEC_TRANS(vrsub_vi, 0, vrsub_vx, rsubi) @@ -1682,7 +1672,7 @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a) tcg_gen_gvec_dup_tl(s->sew, vreg_ofs(s, a->rd), MAXSZ(s), MAXSZ(s), s1); } else { - TCGv_i32 desc ; + TCGv_i32 desc; TCGv_i64 s1_i64 = tcg_temp_new_i64(); TCGv_ptr dest = tcg_temp_new_ptr(); uint32_t data = FIELD_DP32(0, VDATA, LMUL, s->lmul); @@ -1692,12 +1682,11 @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a) }; tcg_gen_ext_tl_i64(s1_i64, s1); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, a->rd)); fns[s->sew](dest, s1_i64, cpu_env, desc); tcg_temp_free_ptr(dest); - tcg_temp_free_i32(desc); tcg_temp_free_i64(s1_i64); } @@ -1729,15 +1718,13 @@ static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a) TCGLabel *over = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); - s1 = tcg_const_i64(simm); + s1 = tcg_constant_i64(simm); dest = tcg_temp_new_ptr(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, a->rd)); fns[s->sew](dest, s1, cpu_env, desc); tcg_temp_free_ptr(dest); - tcg_temp_free_i32(desc); - tcg_temp_free_i64(s1); gen_set_label(over); } return true; @@ -1866,7 +1853,7 @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, dest = tcg_temp_new_ptr(); mask = tcg_temp_new_ptr(); src2 = tcg_temp_new_ptr(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); tcg_gen_addi_ptr(src2, cpu_env, vreg_ofs(s, vs2)); @@ -1877,7 +1864,6 @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, tcg_temp_free_ptr(dest); tcg_temp_free_ptr(mask); tcg_temp_free_ptr(src2); - tcg_temp_free_i32(desc); gen_set_label(over); return true; } @@ -2231,12 +2217,11 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a) tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); dest = tcg_temp_new_ptr(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, a->rd)); fns[s->sew - 1](dest, cpu_fpr[a->rs1], cpu_env, desc); tcg_temp_free_ptr(dest); - tcg_temp_free_i32(desc); gen_set_label(over); } return true; @@ -2428,7 +2413,7 @@ static bool trans_vmpopc_m(DisasContext *s, arg_rmr *a) mask = tcg_temp_new_ptr(); src2 = tcg_temp_new_ptr(); dst = tcg_temp_new(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(src2, cpu_env, vreg_ofs(s, a->rs2)); tcg_gen_addi_ptr(mask, cpu_env, vreg_ofs(s, 0)); @@ -2439,7 +2424,6 @@ static bool trans_vmpopc_m(DisasContext *s, arg_rmr *a) tcg_temp_free_ptr(mask); tcg_temp_free_ptr(src2); tcg_temp_free(dst); - tcg_temp_free_i32(desc); return true; } return false; @@ -2460,7 +2444,7 @@ static bool trans_vmfirst_m(DisasContext *s, arg_rmr *a) mask = tcg_temp_new_ptr(); src2 = tcg_temp_new_ptr(); dst = tcg_temp_new(); - desc = tcg_const_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); + desc = tcg_constant_i32(simd_desc(s->vlen / 8, s->vlen / 8, data)); tcg_gen_addi_ptr(src2, cpu_env, vreg_ofs(s, a->rs2)); tcg_gen_addi_ptr(mask, cpu_env, vreg_ofs(s, 0)); @@ -2471,7 +2455,6 @@ static bool trans_vmfirst_m(DisasContext *s, arg_rmr *a) tcg_temp_free_ptr(mask); tcg_temp_free_ptr(src2); tcg_temp_free(dst); - tcg_temp_free_i32(desc); return true; } return false; @@ -2636,15 +2619,13 @@ static void vec_element_loadx(DisasContext *s, TCGv_i64 dest, tcg_temp_free_i32(ofs); /* Flush out-of-range indexing to zero. */ - t_vlmax = tcg_const_i64(vlmax); - t_zero = tcg_const_i64(0); + t_vlmax = tcg_constant_i64(vlmax); + t_zero = tcg_constant_i64(0); tcg_gen_extu_tl_i64(t_idx, idx); tcg_gen_movcond_i64(TCG_COND_LTU, dest, t_idx, t_vlmax, dest, t_zero); - tcg_temp_free_i64(t_vlmax); - tcg_temp_free_i64(t_zero); tcg_temp_free_i64(t_idx); }