From patchwork Wed Sep 27 09:35:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastian Koppelmann X-Patchwork-Id: 13400463 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 443C5E810AD for ; Wed, 27 Sep 2023 09:37:58 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qlQyJ-0000vY-3U; Wed, 27 Sep 2023 05:36:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qlQy1-0000mL-Im for qemu-devel@nongnu.org; Wed, 27 Sep 2023 05:36:25 -0400 Received: from doohan.uni-paderborn.de ([2001:638:502:c003::16]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qlQxw-0000hO-Tj for qemu-devel@nongnu.org; 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envelope-from=kbastian@mail.uni-paderborn.de; helo=doohan.uni-paderborn.de X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org reported in https://gitlab.com/qemu-project/qemu/-/issues/1667 Reviewed-by: Richard Henderson Signed-off-by: Bastian Koppelmann Message-ID: <20230828112651.522058-7-kbastian@mail.uni-paderborn.de> --- target/tricore/fpu_helper.c | 38 +++++++++++++++++++++++ target/tricore/helper.c | 1 + target/tricore/helper.h | 1 + target/tricore/translate.c | 7 +++++ target/tricore/tricore-opcodes.h | 1 + tests/tcg/tricore/Makefile.softmmu-target | 1 + tests/tcg/tricore/asm/test_ftohp.S | 14 +++++++++ 7 files changed, 63 insertions(+) create mode 100644 tests/tcg/tricore/asm/test_ftohp.S diff --git a/target/tricore/fpu_helper.c b/target/tricore/fpu_helper.c index d0c474c5f3..848c4a40a0 100644 --- a/target/tricore/fpu_helper.c +++ b/target/tricore/fpu_helper.c @@ -373,6 +373,44 @@ uint32_t helper_ftoi(CPUTriCoreState *env, uint32_t arg) return (uint32_t)result; } +uint32_t helper_ftohp(CPUTriCoreState *env, uint32_t arg) +{ + float32 f_arg = make_float32(arg); + uint32_t result = 0; + int32_t flags = 0; + + /* + * if we have any NAN we need to move the top 2 and lower 8 input mantissa + * bits to the top 2 and lower 8 output mantissa bits respectively. + * Softfloat on the other hand uses the top 10 mantissa bits. + */ + if (float32_is_any_nan(f_arg)) { + if (float32_is_signaling_nan(f_arg, &env->fp_status)) { + flags |= float_flag_invalid; + } + result = float16_set_sign(result, arg >> 31); + result = deposit32(result, 10, 5, 0x1f); + result = deposit32(result, 8, 2, extract32(arg, 21, 2)); + result = deposit32(result, 0, 8, extract32(arg, 0, 8)); + if (extract32(result, 0, 10) == 0) { + result |= (1 << 8); + } + } else { + set_flush_to_zero(0, &env->fp_status); + result = float32_to_float16(f_arg, true, &env->fp_status); + set_flush_to_zero(1, &env->fp_status); + flags = f_get_excp_flags(env); + } + + if (flags) { + f_update_psw_flags(env, flags); + } else { + env->FPU_FS = 0; + } + + return result; +} + uint32_t helper_itof(CPUTriCoreState *env, uint32_t arg) { float32 f_result; diff --git a/target/tricore/helper.c b/target/tricore/helper.c index e615c3d6d4..7e5da3cb23 100644 --- a/target/tricore/helper.c +++ b/target/tricore/helper.c @@ -137,6 +137,7 @@ void fpu_set_state(CPUTriCoreState *env) set_flush_inputs_to_zero(1, &env->fp_status); set_flush_to_zero(1, &env->fp_status); + set_float_detect_tininess(float_tininess_before_rounding, &env->fp_status); set_default_nan_mode(1, &env->fp_status); } diff --git a/target/tricore/helper.h b/target/tricore/helper.h index 827fbaa692..dcc5a492b3 100644 --- a/target/tricore/helper.h +++ b/target/tricore/helper.h @@ -111,6 +111,7 @@ DEF_HELPER_4(fmsub, i32, env, i32, i32, i32) DEF_HELPER_3(fcmp, i32, env, i32, i32) DEF_HELPER_2(qseed, i32, env, i32) DEF_HELPER_2(ftoi, i32, env, i32) +DEF_HELPER_2(ftohp, i32, env, i32) DEF_HELPER_2(itof, i32, env, i32) DEF_HELPER_2(utof, i32, env, i32) DEF_HELPER_2(ftoiz, i32, env, i32) diff --git a/target/tricore/translate.c b/target/tricore/translate.c index 382ecf4775..d76b6475f1 100644 --- a/target/tricore/translate.c +++ b/target/tricore/translate.c @@ -6260,6 +6260,13 @@ static void decode_rr_divide(DisasContext *ctx) case OPC2_32_RR_DIV_F: gen_helper_fdiv(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r2]); break; + case OPC2_32_RR_FTOHP: + if (has_feature(ctx, TRICORE_FEATURE_162)) { + gen_helper_ftohp(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1]); + } else { + generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC); + } + break; case OPC2_32_RR_CMP_F: gen_helper_fcmp(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r2]); break; diff --git a/target/tricore/tricore-opcodes.h b/target/tricore/tricore-opcodes.h index f070571665..29e655a667 100644 --- a/target/tricore/tricore-opcodes.h +++ b/target/tricore/tricore-opcodes.h @@ -1152,6 +1152,7 @@ enum { OPC2_32_RR_ITOF = 0x14, OPC2_32_RR_CMP_F = 0x00, OPC2_32_RR_FTOIZ = 0x13, + OPC2_32_RR_FTOHP = 0x25, /* 1.6.2 only */ OPC2_32_RR_FTOQ31 = 0x11, OPC2_32_RR_FTOQ31Z = 0x18, OPC2_32_RR_FTOU = 0x12, diff --git a/tests/tcg/tricore/Makefile.softmmu-target b/tests/tcg/tricore/Makefile.softmmu-target index 91ae129a83..fc545d45ae 100644 --- a/tests/tcg/tricore/Makefile.softmmu-target +++ b/tests/tcg/tricore/Makefile.softmmu-target @@ -14,6 +14,7 @@ TESTS += test_dextr.asm.tst TESTS += test_dvstep.asm.tst TESTS += test_fadd.asm.tst TESTS += test_fmul.asm.tst +TESTS += test_ftohp.asm.tst TESTS += test_ftoi.asm.tst TESTS += test_ftou.asm.tst TESTS += test_imask.asm.tst diff --git a/tests/tcg/tricore/asm/test_ftohp.S b/tests/tcg/tricore/asm/test_ftohp.S new file mode 100644 index 0000000000..9e23141c1e --- /dev/null +++ b/tests/tcg/tricore/asm/test_ftohp.S @@ -0,0 +1,14 @@ +#include "macros.h" +.text +.global _start +_start: + TEST_D_D(ftohp, 1, 0xffff, 0xffffffff) + TEST_D_D(ftohp, 2, 0xfc00, 0xff800000) + TEST_D_D(ftohp, 3, 0x7c00, 0x7f800000) + TEST_D_D(ftohp, 4, 0x0, 0x0) + TEST_D_D(ftohp, 5, 0x5, 0x34a43580) + + #TEST_D_D_PSW(ftohp, 6, 0x400, 0x8c000b80, 0x387fee74) + + TEST_PASSFAIL +