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[98.147.55.211]) by smtp.gmail.com with ESMTPSA id v8-20020a17090a458800b0029af67d4fd0sm4034901pjg.44.2024.03.01.21.16.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 01 Mar 2024 21:16:09 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: mark.cave-ayland@ilande.co.uk, atar4qemu@gmail.com Subject: [PATCH 03/41] target/sparc: Fix FMUL8x16 Date: Fri, 1 Mar 2024 19:15:23 -1000 Message-Id: <20240302051601.53649-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240302051601.53649-1-richard.henderson@linaro.org> References: <20240302051601.53649-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::534; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x534.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, T_SCC_BODY_TEXT_LINE=-0.01 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org This instruction has f32 as source1, which alters the decoding of the register number, which means we've been passing the wrong data for odd register numbers. Signed-off-by: Richard Henderson --- target/sparc/helper.h | 2 +- target/sparc/translate.c | 21 ++++++++++++++++++++- target/sparc/vis_helper.c | 9 +++++---- 3 files changed, 26 insertions(+), 6 deletions(-) diff --git a/target/sparc/helper.h b/target/sparc/helper.h index ef21ef49ef..adc1b87319 100644 --- a/target/sparc/helper.h +++ b/target/sparc/helper.h @@ -92,7 +92,7 @@ DEF_HELPER_FLAGS_2(fdtox, TCG_CALL_NO_WG, s64, env, f64) DEF_HELPER_FLAGS_2(fqtox, TCG_CALL_NO_WG, s64, env, i128) DEF_HELPER_FLAGS_2(fpmerge, TCG_CALL_NO_RWG_SE, i64, i64, i64) -DEF_HELPER_FLAGS_2(fmul8x16, TCG_CALL_NO_RWG_SE, i64, i64, i64) +DEF_HELPER_FLAGS_2(fmul8x16, TCG_CALL_NO_RWG_SE, i64, i32, i64) DEF_HELPER_FLAGS_2(fmul8x16al, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(fmul8x16au, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(fmul8sux16, TCG_CALL_NO_RWG_SE, i64, i64, i64) diff --git a/target/sparc/translate.c b/target/sparc/translate.c index 5016664869..5144fe4ed9 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -4539,6 +4539,26 @@ TRANS(FSUBs, ALL, do_env_fff, a, gen_helper_fsubs) TRANS(FMULs, ALL, do_env_fff, a, gen_helper_fmuls) TRANS(FDIVs, ALL, do_env_fff, a, gen_helper_fdivs) +static bool do_dfd(DisasContext *dc, arg_r_r_r *a, + void (*func)(TCGv_i64, TCGv_i32, TCGv_i64)) +{ + TCGv_i64 dst, src2; + TCGv_i32 src1; + + if (gen_trap_ifnofpu(dc)) { + return true; + } + + dst = gen_dest_fpr_D(dc, a->rd); + src1 = gen_load_fpr_F(dc, a->rs1); + src2 = gen_load_fpr_D(dc, a->rs2); + func(dst, src1, src2); + gen_store_fpr_D(dc, a->rd, dst); + return advance_pc(dc); +} + +TRANS(FMUL8x16, VIS1, do_dfd, a, gen_helper_fmul8x16) + static bool do_ddd(DisasContext *dc, arg_r_r_r *a, void (*func)(TCGv_i64, TCGv_i64, TCGv_i64)) { @@ -4556,7 +4576,6 @@ static bool do_ddd(DisasContext *dc, arg_r_r_r *a, return advance_pc(dc); } -TRANS(FMUL8x16, VIS1, do_ddd, a, gen_helper_fmul8x16) TRANS(FMUL8x16AU, VIS1, do_ddd, a, gen_helper_fmul8x16au) TRANS(FMUL8x16AL, VIS1, do_ddd, a, gen_helper_fmul8x16al) TRANS(FMUL8SUx16, VIS1, do_ddd, a, gen_helper_fmul8sux16) diff --git a/target/sparc/vis_helper.c b/target/sparc/vis_helper.c index db2e6dd6c1..7728ffe9c6 100644 --- a/target/sparc/vis_helper.c +++ b/target/sparc/vis_helper.c @@ -94,16 +94,17 @@ uint64_t helper_fpmerge(uint64_t src1, uint64_t src2) return d.ll; } -uint64_t helper_fmul8x16(uint64_t src1, uint64_t src2) +uint64_t helper_fmul8x16(uint32_t src1, uint64_t src2) { - VIS64 s, d; + VIS64 d; + VIS32 s; uint32_t tmp; - s.ll = src1; + s.l = src1; d.ll = src2; #define PMUL(r) \ - tmp = (int32_t)d.VIS_SW64(r) * (int32_t)s.VIS_B64(r); \ + tmp = (int32_t)d.VIS_SW64(r) * (int32_t)s.VIS_B32(r); \ if ((tmp & 0xff) > 0x7f) { \ tmp += 0x100; \ } \