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[174.21.70.228]) by smtp.gmail.com with ESMTPSA id h20sm2242022pfh.24.2021.06.14.01.38.07 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Jun 2021 01:38:08 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 11/28] tcg/ppc: Use power10 byte-reverse instructions Date: Mon, 14 Jun 2021 01:37:43 -0700 Message-Id: <20210614083800.1166166-12-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210614083800.1166166-1-richard.henderson@linaro.org> References: <20210614083800.1166166-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1031; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1031.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 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 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" Signed-off-by: Richard Henderson --- tcg/ppc/tcg-target.c.inc | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index e868417168..af87643f54 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -413,6 +413,10 @@ static bool tcg_target_const_match(int64_t val, TCGType type, int ct) #define SRAD XO31(794) #define SRADI XO31(413<<1) +#define BRH XO31(219) +#define BRW XO31(155) +#define BRD XO31(187) + #define TW XO31( 4) #define TRAP (TW | TO(31)) @@ -748,6 +752,11 @@ static inline void tcg_out_ext16s(TCGContext *s, TCGReg dst, TCGReg src) tcg_out32(s, EXTSH | RA(dst) | RS(src)); } +static inline void tcg_out_ext16u(TCGContext *s, TCGReg dst, TCGReg src) +{ + tcg_out32(s, ANDI | SAI(src, dst, 0xffff)); +} + static inline void tcg_out_ext32s(TCGContext *s, TCGReg dst, TCGReg src) { tcg_out32(s, EXTSW | RA(dst) | RS(src)); @@ -792,6 +801,16 @@ static void tcg_out_bswap16(TCGContext *s, TCGReg dst, TCGReg src, int flags) { TCGReg tmp = dst == src ? TCG_REG_R0 : dst; + if (have_isa_3_10) { + tcg_out32(s, BRH | RA(dst) | RS(src)); + if (flags & TCG_BSWAP_OS) { + tcg_out_ext16s(s, dst, dst); + } else if ((flags & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) { + tcg_out_ext16u(s, dst, dst); + } + return; + } + /* src = xxxx abcd */ tcg_out_rlw(s, RLWINM, tmp, src, 24, 24, 31); /* tmp = 0000 000c */ tcg_out_rlw(s, RLWIMI, tmp, src, 8, 16, 23); /* tmp = 0000 00dc */ @@ -807,6 +826,16 @@ static void tcg_out_bswap32(TCGContext *s, TCGReg dst, TCGReg src, int flags) { TCGReg tmp = dst == src ? TCG_REG_R0 : dst; + if (have_isa_3_10) { + tcg_out32(s, BRW | RA(dst) | RS(src)); + if (flags & TCG_BSWAP_OS) { + tcg_out_ext32s(s, dst, src); + } else if ((flags & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) { + tcg_out_ext32u(s, dst, dst); + } + return; + } + /* Stolen from gcc's builtin_bswap32. src = xxxx abcd */ tcg_out_rlw(s, RLWINM, tmp, src, 8, 0, 31); /* tmp = 0000 bcda */ tcg_out_rlw(s, RLWIMI, tmp, src, 24, 0, 7); /* tmp = 0000 dcda */ @@ -824,6 +853,11 @@ static void tcg_out_bswap64(TCGContext *s, TCGReg dst, TCGReg src) TCGReg t0 = dst == src ? TCG_REG_R0 : dst; TCGReg t1 = dst == src ? dst : TCG_REG_R0; + if (have_isa_3_10) { + tcg_out32(s, BRD | RA(dst) | RS(src)); + return; + } + /* src = abcd efgh */ tcg_out_rlw(s, RLWINM, t0, src, 8, 0, 31); /* t0 = 0000 fghe */ tcg_out_rlw(s, RLWIMI, t0, src, 24, 0, 7); /* t0 = 0000 hghe */ -- 2.25.1