From 7c1f88703d216cc6b2e30689fbc295423ca13d40 Mon Sep 17 00:00:00 2001 From: Song Gao Date: Mon, 6 Jun 2022 20:43:02 +0800 Subject: [PATCH] target/loongarch: Add floating point conversion instruction translation This includes: - FCVT.S.D, FCVT.D.S - FFINT.{S/D}.{W/L}, FTINT.{W/L}.{S/D} - FTINT{RM/RP/RZ/RNE}.{W/L}.{S/D} - FRINT.{S/D} Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson Message-Id: <20220606124333.2060567-13-yangxiaojuan@loongson.cn> Signed-off-by: Richard Henderson --- target/loongarch/fpu_helper.c | 393 +++++++++++++++++++ target/loongarch/helper.h | 29 ++ target/loongarch/insn_trans/trans_fcnv.c.inc | 33 ++ target/loongarch/insns.decode | 32 ++ target/loongarch/translate.c | 1 + 5 files changed, 488 insertions(+) create mode 100644 target/loongarch/insn_trans/trans_fcnv.c.inc diff --git a/target/loongarch/fpu_helper.c b/target/loongarch/fpu_helper.c index 1e514cce74..81466678eb 100644 --- a/target/loongarch/fpu_helper.c +++ b/target/loongarch/fpu_helper.c @@ -461,3 +461,396 @@ uint64_t helper_fcmp_s_d(CPULoongArchState *env, uint64_t fj, FloatRelation cmp = float64_compare(fj, fk, &env->fp_status); return fcmp_common(env, cmp, flags); } + +/* floating point conversion */ +uint64_t helper_fcvt_s_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(float64_to_float32(fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_fcvt_d_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float32_to_float64((uint32_t)fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_s_w(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(int32_to_float32((int32_t)fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_s_l(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = nanbox_s(int64_to_float32(fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_d_w(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = int32_to_float64((int32_t)fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ffint_d_l(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = int64_to_float64(fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frint_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = (uint64_t)(float32_round_to_int((uint32_t)fj, &env->fp_status)); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_frint_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float64_round_to_int(fj, &env->fp_status); + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = float64_to_int64(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrm_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_down, &env->fp_status); + fd = (uint64_t)float32_to_int32((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = float64_to_int64(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrp_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_up, &env->fp_status); + fd = (uint64_t)float32_to_int32((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = float64_to_int64_round_to_zero(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = float32_to_int64_round_to_zero((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = (uint64_t)float64_to_int32_round_to_zero(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrz_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint32_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + fd = float32_to_int32_round_to_zero((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return (uint64_t)fd; +} + +uint64_t helper_ftintrne_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = float64_to_int64(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrne_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrne_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftintrne_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint32_t fd; + FloatRoundMode old_mode = get_float_rounding_mode(&env->fp_status); + + set_float_rounding_mode(float_round_nearest_even, &env->fp_status); + fd = float32_to_int32((uint32_t)fj, &env->fp_status); + set_float_rounding_mode(old_mode, &env->fp_status); + + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return (uint64_t)fd; +} + +uint64_t helper_ftint_l_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float64_to_int64(fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftint_l_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = float32_to_int64((uint32_t)fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) & + (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT64_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftint_w_s(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = (uint64_t)float32_to_int32((uint32_t)fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) + & (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} + +uint64_t helper_ftint_w_d(CPULoongArchState *env, uint64_t fj) +{ + uint64_t fd; + + fd = (uint64_t)float64_to_int32(fj, &env->fp_status); + if (get_float_exception_flags(&env->fp_status) + & (float_flag_invalid | float_flag_overflow)) { + fd = FLOAT_TO_INT32_OVERFLOW; + } + update_fcsr0(env, GETPC()); + return fd; +} diff --git a/target/loongarch/helper.h b/target/loongarch/helper.h index 25a891bf8b..1e8749433a 100644 --- a/target/loongarch/helper.h +++ b/target/loongarch/helper.h @@ -61,3 +61,32 @@ DEF_HELPER_4(fcmp_s_s, i64, env, i64, i64, i32) DEF_HELPER_4(fcmp_c_d, i64, env, i64, i64, i32) /* fcmp.sXXX.d */ DEF_HELPER_4(fcmp_s_d, i64, env, i64, i64, i32) + +DEF_HELPER_2(fcvt_d_s, i64, env, i64) +DEF_HELPER_2(fcvt_s_d, i64, env, i64) +DEF_HELPER_2(ffint_d_w, i64, env, i64) +DEF_HELPER_2(ffint_d_l, i64, env, i64) +DEF_HELPER_2(ffint_s_w, i64, env, i64) +DEF_HELPER_2(ffint_s_l, i64, env, i64) +DEF_HELPER_2(ftintrm_l_s, i64, env, i64) +DEF_HELPER_2(ftintrm_l_d, i64, env, i64) +DEF_HELPER_2(ftintrm_w_s, i64, env, i64) +DEF_HELPER_2(ftintrm_w_d, i64, env, i64) +DEF_HELPER_2(ftintrp_l_s, i64, env, i64) +DEF_HELPER_2(ftintrp_l_d, i64, env, i64) +DEF_HELPER_2(ftintrp_w_s, i64, env, i64) +DEF_HELPER_2(ftintrp_w_d, i64, env, i64) +DEF_HELPER_2(ftintrz_l_s, i64, env, i64) +DEF_HELPER_2(ftintrz_l_d, i64, env, i64) +DEF_HELPER_2(ftintrz_w_s, i64, env, i64) +DEF_HELPER_2(ftintrz_w_d, i64, env, i64) +DEF_HELPER_2(ftintrne_l_s, i64, env, i64) +DEF_HELPER_2(ftintrne_l_d, i64, env, i64) +DEF_HELPER_2(ftintrne_w_s, i64, env, i64) +DEF_HELPER_2(ftintrne_w_d, i64, env, i64) +DEF_HELPER_2(ftint_l_s, i64, env, i64) +DEF_HELPER_2(ftint_l_d, i64, env, i64) +DEF_HELPER_2(ftint_w_s, i64, env, i64) +DEF_HELPER_2(ftint_w_d, i64, env, i64) +DEF_HELPER_2(frint_s, i64, env, i64) +DEF_HELPER_2(frint_d, i64, env, i64) diff --git a/target/loongarch/insn_trans/trans_fcnv.c.inc b/target/loongarch/insn_trans/trans_fcnv.c.inc new file mode 100644 index 0000000000..c1c6918ad1 --- /dev/null +++ b/target/loongarch/insn_trans/trans_fcnv.c.inc @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +TRANS(fcvt_s_d, gen_ff, gen_helper_fcvt_s_d) +TRANS(fcvt_d_s, gen_ff, gen_helper_fcvt_d_s) +TRANS(ftintrm_w_s, gen_ff, gen_helper_ftintrm_w_s) +TRANS(ftintrm_w_d, gen_ff, gen_helper_ftintrm_w_d) +TRANS(ftintrm_l_s, gen_ff, gen_helper_ftintrm_l_s) +TRANS(ftintrm_l_d, gen_ff, gen_helper_ftintrm_l_d) +TRANS(ftintrp_w_s, gen_ff, gen_helper_ftintrp_w_s) +TRANS(ftintrp_w_d, gen_ff, gen_helper_ftintrp_w_d) +TRANS(ftintrp_l_s, gen_ff, gen_helper_ftintrp_l_s) +TRANS(ftintrp_l_d, gen_ff, gen_helper_ftintrp_l_d) +TRANS(ftintrz_w_s, gen_ff, gen_helper_ftintrz_w_s) +TRANS(ftintrz_w_d, gen_ff, gen_helper_ftintrz_w_d) +TRANS(ftintrz_l_s, gen_ff, gen_helper_ftintrz_l_s) +TRANS(ftintrz_l_d, gen_ff, gen_helper_ftintrz_l_d) +TRANS(ftintrne_w_s, gen_ff, gen_helper_ftintrne_w_s) +TRANS(ftintrne_w_d, gen_ff, gen_helper_ftintrne_w_d) +TRANS(ftintrne_l_s, gen_ff, gen_helper_ftintrne_l_s) +TRANS(ftintrne_l_d, gen_ff, gen_helper_ftintrne_l_d) +TRANS(ftint_w_s, gen_ff, gen_helper_ftint_w_s) +TRANS(ftint_w_d, gen_ff, gen_helper_ftint_w_d) +TRANS(ftint_l_s, gen_ff, gen_helper_ftint_l_s) +TRANS(ftint_l_d, gen_ff, gen_helper_ftint_l_d) +TRANS(ffint_s_w, gen_ff, gen_helper_ffint_s_w) +TRANS(ffint_s_l, gen_ff, gen_helper_ffint_s_l) +TRANS(ffint_d_w, gen_ff, gen_helper_ffint_d_w) +TRANS(ffint_d_l, gen_ff, gen_helper_ffint_d_l) +TRANS(frint_s, gen_ff, gen_helper_frint_s) +TRANS(frint_d, gen_ff, gen_helper_frint_d) diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode index d7ed80b0b9..b9f135d36f 100644 --- a/target/loongarch/insns.decode +++ b/target/loongarch/insns.decode @@ -316,3 +316,35 @@ fclass_d 0000 00010001 01000 01110 ..... ..... @ff # fcmp_cond_s 0000 11000001 ..... ..... ..... 00 ... @cff_fcond fcmp_cond_d 0000 11000010 ..... ..... ..... 00 ... @cff_fcond + +# +# Floating point conversion instruction +# +fcvt_s_d 0000 00010001 10010 00110 ..... ..... @ff +fcvt_d_s 0000 00010001 10010 01001 ..... ..... @ff +ftintrm_w_s 0000 00010001 10100 00001 ..... ..... @ff +ftintrm_w_d 0000 00010001 10100 00010 ..... ..... @ff +ftintrm_l_s 0000 00010001 10100 01001 ..... ..... @ff +ftintrm_l_d 0000 00010001 10100 01010 ..... ..... @ff +ftintrp_w_s 0000 00010001 10100 10001 ..... ..... @ff +ftintrp_w_d 0000 00010001 10100 10010 ..... ..... @ff +ftintrp_l_s 0000 00010001 10100 11001 ..... ..... @ff +ftintrp_l_d 0000 00010001 10100 11010 ..... ..... @ff +ftintrz_w_s 0000 00010001 10101 00001 ..... ..... @ff +ftintrz_w_d 0000 00010001 10101 00010 ..... ..... @ff +ftintrz_l_s 0000 00010001 10101 01001 ..... ..... @ff +ftintrz_l_d 0000 00010001 10101 01010 ..... ..... @ff +ftintrne_w_s 0000 00010001 10101 10001 ..... ..... @ff +ftintrne_w_d 0000 00010001 10101 10010 ..... ..... @ff +ftintrne_l_s 0000 00010001 10101 11001 ..... ..... @ff +ftintrne_l_d 0000 00010001 10101 11010 ..... ..... @ff +ftint_w_s 0000 00010001 10110 00001 ..... ..... @ff +ftint_w_d 0000 00010001 10110 00010 ..... ..... @ff +ftint_l_s 0000 00010001 10110 01001 ..... ..... @ff +ftint_l_d 0000 00010001 10110 01010 ..... ..... @ff +ffint_s_w 0000 00010001 11010 00100 ..... ..... @ff +ffint_s_l 0000 00010001 11010 00110 ..... ..... @ff +ffint_d_w 0000 00010001 11010 01000 ..... ..... @ff +ffint_d_l 0000 00010001 11010 01010 ..... ..... @ff +frint_s 0000 00010001 11100 10001 ..... ..... @ff +frint_d 0000 00010001 11100 10010 ..... ..... @ff diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index a338db50b7..26ef1e366c 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -168,6 +168,7 @@ static void gen_set_gpr(int reg_num, TCGv t, DisasExtend dst_ext) #include "insn_trans/trans_extra.c.inc" #include "insn_trans/trans_farith.c.inc" #include "insn_trans/trans_fcmp.c.inc" +#include "insn_trans/trans_fcnv.c.inc" static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) {