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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id z135sm2596784wmc.45.2019.06.06.10.46.52 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Jun 2019 10:46:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=B1+wWB3rNTZOHORyna/i52K8oN8xz+ryKjDaxSUmMDA=; b=ecqYYTIQnIUj7UQd/KwDb1Q7NNl45yDpRczzlOxXe96+kym6+CWpNHlhxAATXAGPPY HTH0fzH/D70LcofczuEjlPSP1ZtQTF7sp7z6zbLf08RqYUk2nIiefCHLIEcST0/HyoYk FJapHVzRAtJIrm/ZkpjwGTNjg+vK1uczHF9iyPZhfOMjbMuYQh1F/xoZ7gwzEwsY04sw Zoj6gI7NGUCcdmvQlQHPpCbofqNSFoQeq+rkxjUoxZIEZlD88yJlaihDRu2p5hOxhi+g m6FEDiMGvGivOMEJ4uIAEjcDy2d9HxVUND44WntuG7Q01kOqf0jqHb+/xx/n5FbfeRqD zWKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=B1+wWB3rNTZOHORyna/i52K8oN8xz+ryKjDaxSUmMDA=; b=nv9VTp7O2D2O9CVoQ7jDDmDfF9IL9a6XPfMKmbBhAnyWU/raQWlE++WmPgUJ7ahnuO NynZpB2BJYtm37kHCJZZ1n5lzvdIQfuNe8id9P37iLPxrtlKpsqPVAOXf0JeeqCmvnxY //uy2ogNm/Udu8kdtoyVMeUxi6Hq2tvOgwpmh5Zd8ey25P2hjzTC0OveWBPGHPl5+qaL dLt2t0KvNvU1xGe0En39t+B3D91GFrTgxklCV2uQjkpaGWXMxBVp5V8DG4/ChGNHSeTp n74UYVziiKEOotkXkYT4oX+M/+Dk3HVEZGzcRha8jYnSkK2hSepyzrcyyP1QPURTWJxH /DAA== X-Gm-Message-State: APjAAAVtp+q+afvxJyZxH8O8rQYQn/Xb9nuvtCfpfxqBGLclehQirql6 Cf/1BbdA2a7cwTjKBotMg9SoyU6EWm8qAg== X-Google-Smtp-Source: APXvYqy2gYAMbTYLUsZEGJLLRaf+4m38k0LChRzw6LG18+Dmk+uaH4ugGAe0lzN8ojtpxUlixigaEw== X-Received: by 2002:a5d:6949:: with SMTP id r9mr15936279wrw.73.1559843213416; Thu, 06 Jun 2019 10:46:53 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Date: Thu, 6 Jun 2019 18:46:05 +0100 Message-Id: <20190606174609.20487-39-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190606174609.20487-1-peter.maydell@linaro.org> References: <20190606174609.20487-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::444 Subject: [Qemu-devel] [PATCH 38/42] target/arm: Convert integer-to-float insns to decodetree X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Convert the VCVT integer-to-float instructions to decodetree. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/translate-vfp.inc.c | 58 ++++++++++++++++++++++++++++++++++ target/arm/translate.c | 12 +------ target/arm/vfp.decode | 6 ++++ 3 files changed, 65 insertions(+), 11 deletions(-) diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index c4bf1249ee7..e5b5c3cd6a5 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -2360,3 +2360,61 @@ static bool trans_VCVT_dp(DisasContext *s, arg_VCVT_= dp *a) tcg_temp_free_i64(vm); return true; } + +static bool trans_VCVT_int_sp(DisasContext *s, arg_VCVT_int_sp *a) +{ + TCGv_i32 vm; + TCGv_ptr fpst; + + if (!vfp_access_check(s)) { + return true; + } + + vm =3D tcg_temp_new_i32(); + neon_load_reg32(vm, a->vm); + fpst =3D get_fpstatus_ptr(false); + if (a->s) { + /* i32 -> f32 */ + gen_helper_vfp_sitos(vm, vm, fpst); + } else { + /* u32 -> f32 */ + gen_helper_vfp_uitos(vm, vm, fpst); + } + neon_store_reg32(vm, a->vd); + tcg_temp_free_i32(vm); + tcg_temp_free_ptr(fpst); + return true; +} + +static bool trans_VCVT_int_dp(DisasContext *s, arg_VCVT_int_dp *a) +{ + TCGv_i32 vm; + TCGv_i64 vd; + TCGv_ptr fpst; + + /* UNDEF accesses to D16-D31 if they don't exist. */ + if (!dc_isar_feature(aa32_fp_d32, s) && (a->vd & 0x10)) { + return false; + } + + if (!vfp_access_check(s)) { + return true; + } + + vm =3D tcg_temp_new_i32(); + vd =3D tcg_temp_new_i64(); + neon_load_reg32(vm, a->vm); + fpst =3D get_fpstatus_ptr(false); + if (a->s) { + /* i32 -> f64 */ + gen_helper_vfp_sitod(vd, vm, fpst); + } else { + /* u32 -> f64 */ + gen_helper_vfp_uitod(vd, vm, fpst); + } + neon_store_reg64(vd, a->vd); + tcg_temp_free_i32(vm); + tcg_temp_free_i64(vd); + tcg_temp_free_ptr(fpst); + return true; +} diff --git a/target/arm/translate.c b/target/arm/translate.c index 2902bb7488e..b98f8f103ae 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -3050,7 +3050,7 @@ static int disas_vfp_insn(DisasContext *s, uint32_t i= nsn) return 1; case 15: switch (rn) { - case 0 ... 15: + case 0 ... 17: /* Already handled by decodetree */ return 1; default: @@ -3063,10 +3063,6 @@ static int disas_vfp_insn(DisasContext *s, uint32_t = insn) if (op =3D=3D 15) { /* rn is opcode, encoded as per VFP_SREG_N. */ switch (rn) { - case 0x10: /* vcvt.fxx.u32 */ - case 0x11: /* vcvt.fxx.s32 */ - rm_is_dp =3D false; - break; case 0x18: /* vcvtr.u32.fxx */ case 0x19: /* vcvtz.u32.fxx */ case 0x1a: /* vcvtr.s32.fxx */ @@ -3181,12 +3177,6 @@ static int disas_vfp_insn(DisasContext *s, uint32_t = insn) switch (op) { case 15: /* extension space */ switch (rn) { - case 16: /* fuito */ - gen_vfp_uito(dp, 0); - break; - case 17: /* fsito */ - gen_vfp_sito(dp, 0); - break; case 19: /* vjcvt */ gen_helper_vjcvt(cpu_F0s, cpu_F0d, cpu_env); break; diff --git a/target/arm/vfp.decode b/target/arm/vfp.decode index 56b8b4e6046..6da9a7913da 100644 --- a/target/arm/vfp.decode +++ b/target/arm/vfp.decode @@ -214,3 +214,9 @@ VCVT_sp ---- 1110 1.11 0111 .... 1010 11.0 .... \ vd=3D%vd_dp vm=3D%vm_sp VCVT_dp ---- 1110 1.11 0111 .... 1011 11.0 .... \ vd=3D%vd_sp vm=3D%vm_dp + +# VCVT from integer to floating point: Vm always single; Vd depends on size +VCVT_int_sp ---- 1110 1.11 1000 .... 1010 s:1 1.0 .... \ + vd=3D%vd_sp vm=3D%vm_sp +VCVT_int_dp ---- 1110 1.11 1000 .... 1011 s:1 1.0 .... \ + vd=3D%vd_dp vm=3D%vm_sp --=20 2.20.1