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Tue, 15 Oct 2024 08:48:13 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Richard Henderson Subject: [PULL 29/33] target/mips: Use gen_op_addr_addi() when possible Date: Tue, 15 Oct 2024 12:44:38 -0300 Message-ID: <20241015154443.71763-30-philmd@linaro.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241015154443.71763-1-philmd@linaro.org> References: <20241015154443.71763-1-philmd@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=philmd@linaro.org; helo=mail-pl1-x62c.google.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1729007488787116600 Replace tcg_gen_movi_tl() + gen_op_addr_add() by a single gen_op_addr_addi() call. gen_op_addr_addi() calls tcg_gen_addi_tl() which might optimize if the immediate is zero. Suggested-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Richard Henderson Message-Id: <20241010215015.44326-13-philmd@linaro.org> --- target/mips/tcg/translate.h | 1 + target/mips/tcg/translate.c | 6 ++---- target/mips/tcg/micromips_translate.c.inc | 12 ++++-------- target/mips/tcg/mips16e_translate.c.inc | 15 ++++----------- target/mips/tcg/nanomips_translate.c.inc | 4 +--- 5 files changed, 12 insertions(+), 26 deletions(-) diff --git a/target/mips/tcg/translate.h b/target/mips/tcg/translate.h index 49ff6b8cd80..5d196e69ac4 100644 --- a/target/mips/tcg/translate.h +++ b/target/mips/tcg/translate.h @@ -176,6 +176,7 @@ void gen_addiupc(DisasContext *ctx, int rx, int imm, * Address Computation and Large Constant Instructions */ void gen_op_addr_add(DisasContext *ctx, TCGv ret, TCGv arg0, TCGv arg1); +void gen_op_addr_addi(DisasContext *ctx, TCGv ret, TCGv base, target_long = ofs); bool gen_lsa(DisasContext *ctx, int rd, int rt, int rs, int sa); bool gen_dlsa(DisasContext *ctx, int rd, int rt, int rs, int sa); =20 diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c index 0ccf32d185e..53a0cbf92be 100644 --- a/target/mips/tcg/translate.c +++ b/target/mips/tcg/translate.c @@ -1456,8 +1456,7 @@ void gen_op_addr_add(DisasContext *ctx, TCGv ret, TCG= v arg0, TCGv arg1) #endif } =20 -static inline void gen_op_addr_addi(DisasContext *ctx, TCGv ret, TCGv base, - target_long ofs) +void gen_op_addr_addi(DisasContext *ctx, TCGv ret, TCGv base, target_long = ofs) { tcg_gen_addi_tl(ret, base, ofs); =20 @@ -11265,10 +11264,9 @@ static void gen_compute_compact_branch(DisasContex= t *ctx, uint32_t opc, } else { /* OPC_JIC, OPC_JIALC */ TCGv tbase =3D tcg_temp_new(); - TCGv toffset =3D tcg_constant_tl(offset); =20 gen_load_gpr(tbase, rt); - gen_op_addr_add(ctx, btarget, tbase, toffset); + gen_op_addr_addi(ctx, btarget, tbase, offset); } break; default: diff --git a/target/mips/tcg/micromips_translate.c.inc b/target/mips/tcg/mi= cromips_translate.c.inc index 171508f7deb..3cbf53bf2b3 100644 --- a/target/mips/tcg/micromips_translate.c.inc +++ b/target/mips/tcg/micromips_translate.c.inc @@ -980,8 +980,7 @@ static void gen_ldst_pair(DisasContext *ctx, uint32_t o= pc, int rd, tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_SL | ctx->default_tcg_memop_mask); gen_store_gpr(t1, rd); - tcg_gen_movi_tl(t1, 4); - gen_op_addr_add(ctx, t0, t0, t1); + gen_op_addr_addi(ctx, t0, t0, 4); tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_SL | ctx->default_tcg_memop_mask); gen_store_gpr(t1, rd + 1); @@ -990,8 +989,7 @@ static void gen_ldst_pair(DisasContext *ctx, uint32_t o= pc, int rd, gen_load_gpr(t1, rd); tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_UL | ctx->default_tcg_memop_mask); - tcg_gen_movi_tl(t1, 4); - gen_op_addr_add(ctx, t0, t0, t1); + gen_op_addr_addi(ctx, t0, t0, 4); gen_load_gpr(t1, rd + 1); tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_UL | ctx->default_tcg_memop_mask); @@ -1005,8 +1003,7 @@ static void gen_ldst_pair(DisasContext *ctx, uint32_t= opc, int rd, tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_UQ | ctx->default_tcg_memop_mask); gen_store_gpr(t1, rd); - tcg_gen_movi_tl(t1, 8); - gen_op_addr_add(ctx, t0, t0, t1); + gen_op_addr_addi(ctx, t0, t0, 8); tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_UQ | ctx->default_tcg_memop_mask); gen_store_gpr(t1, rd + 1); @@ -1015,8 +1012,7 @@ static void gen_ldst_pair(DisasContext *ctx, uint32_t= opc, int rd, gen_load_gpr(t1, rd); tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_UQ | ctx->default_tcg_memop_mask); - tcg_gen_movi_tl(t1, 8); - gen_op_addr_add(ctx, t0, t0, t1); + gen_op_addr_addi(ctx, t0, t0, 8); gen_load_gpr(t1, rd + 1); tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_UQ | ctx->default_tcg_memop_mask); diff --git a/target/mips/tcg/mips16e_translate.c.inc b/target/mips/tcg/mips= 16e_translate.c.inc index ef7a0ec0d38..a9af8f1e74a 100644 --- a/target/mips/tcg/mips16e_translate.c.inc +++ b/target/mips/tcg/mips16e_translate.c.inc @@ -130,10 +130,8 @@ static int xlat(int r) static void decr_and_store(DisasContext *ctx, unsigned regidx, TCGv t0) { TCGv t1 =3D tcg_temp_new(); - TCGv t2 =3D tcg_temp_new(); =20 - tcg_gen_movi_tl(t2, -4); - gen_op_addr_add(ctx, t0, t0, t2); + gen_op_addr_addi(ctx, t0, t0, -4); gen_load_gpr(t1, regidx); tcg_gen_qemu_st_tl(t1, t0, ctx->mem_idx, mo_endian(ctx) | MO_UL | ctx->default_tcg_memop_mask); @@ -146,7 +144,6 @@ static void gen_mips16_save(DisasContext *ctx, { TCGv t0 =3D tcg_temp_new(); TCGv t1 =3D tcg_temp_new(); - TCGv t2 =3D tcg_temp_new(); int args, astatic; =20 switch (aregs) { @@ -286,8 +283,7 @@ static void gen_mips16_save(DisasContext *ctx, } } =20 - tcg_gen_movi_tl(t2, -framesize); - gen_op_addr_add(ctx, cpu_gpr[29], cpu_gpr[29], t2); + gen_op_addr_addi(ctx, cpu_gpr[29], cpu_gpr[29], -framesize); } =20 static void decr_and_load(DisasContext *ctx, unsigned regidx, TCGv t0) @@ -309,10 +305,8 @@ static void gen_mips16_restore(DisasContext *ctx, { int astatic; TCGv t0 =3D tcg_temp_new(); - TCGv t2 =3D tcg_temp_new(); =20 - tcg_gen_movi_tl(t2, framesize); - gen_op_addr_add(ctx, t0, cpu_gpr[29], t2); + gen_op_addr_addi(ctx, t0, cpu_gpr[29], -framesize); =20 if (do_ra) { decr_and_load(ctx, 31, t0); @@ -392,8 +386,7 @@ static void gen_mips16_restore(DisasContext *ctx, } } =20 - tcg_gen_movi_tl(t2, framesize); - gen_op_addr_add(ctx, cpu_gpr[29], cpu_gpr[29], t2); + gen_op_addr_addi(ctx, cpu_gpr[29], cpu_gpr[29], -framesize); } =20 #if defined(TARGET_MIPS64) diff --git a/target/mips/tcg/nanomips_translate.c.inc b/target/mips/tcg/nan= omips_translate.c.inc index d462173348f..8e05a36b545 100644 --- a/target/mips/tcg/nanomips_translate.c.inc +++ b/target/mips/tcg/nanomips_translate.c.inc @@ -2470,11 +2470,9 @@ static void gen_compute_compact_branch_nm(DisasConte= xt *ctx, uint32_t opc, } else { /* OPC_JIC, OPC_JIALC */ TCGv tbase =3D tcg_temp_new(); - TCGv toffset =3D tcg_temp_new(); =20 gen_load_gpr(tbase, rt); - tcg_gen_movi_tl(toffset, offset); - gen_op_addr_add(ctx, btarget, tbase, toffset); + gen_op_addr_addi(ctx, btarget, tbase, offset); } break; default: --=20 2.45.2