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Wed, 29 Dec 2021 01:27:42 +0000 (GMT) To: gcc-patches@gcc.gnu.org Subject: [PATCH] rs6000: Add split pattern to replace Date: Tue, 28 Dec 2021 19:27:40 -0600 Message-Id: <20211229012740.3245971-1-luoxhu@linux.ibm.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: HurV-h9L-dGDGwmtXH6ns-QF9VBwMw2s X-Proofpoint-GUID: xsNEm1d-xb6b0GkLHLNnACkCR4ddonYv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-28_13,2021-12-28_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 mlxlogscore=999 spamscore=0 lowpriorityscore=0 suspectscore=0 phishscore=0 priorityscore=1501 mlxscore=0 malwarescore=0 clxscore=1015 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112290003 X-Spam-Status: No, score=-10.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Xionghu Luo via Gcc-patches From: Xionghu Luo Reply-To: Xionghu Luo Cc: segher@kernel.crashing.org, Xionghu Luo , wschmidt@linux.ibm.com, linkw@gcc.gnu.org, dje.gcc@gmail.com Errors-To: gcc-patches-bounces+patchwork=sourceware.org@gcc.gnu.org Sender: "Gcc-patches" 7: r120:V4SI=const_vector 8: r121:V4SI=unspec[r120:V4SI,r120:V4SI,0xc] 260 with r121:v4SI = r120:V4SI when r120 is a vector with same element. Bootstrapped and regtested pass on powerpc64le-linux-gnu {P10, P9} and powerpc64-linux-gnu {P8, P7}. OK for master? gcc/ChangeLog: * config/rs6000/altivec.md (sldoi_to_mov_): New. gcc/testsuite/ChangeLog: * gcc.target/powerpc/sldoi_to_mov.c: New test. --- gcc/config/rs6000/altivec.md | 11 +++++++++++ gcc/testsuite/gcc.target/powerpc/sldoi_to_mov.c | 15 +++++++++++++++ 2 files changed, 26 insertions(+) create mode 100644 gcc/testsuite/gcc.target/powerpc/sldoi_to_mov.c diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md index b2909857c34..25f86dbe828 100644 --- a/gcc/config/rs6000/altivec.md +++ b/gcc/config/rs6000/altivec.md @@ -383,6 +383,17 @@ (define_split } }) +(define_insn_and_split "sldoi_to_mov_" + [(set (match_operand:VM 0 "altivec_register_operand") + (unspec:VM [(match_operand:VM 1 "easy_vector_constant") + (match_dup 1) + (match_operand:VM 2 "u5bit_cint_operand")] + UNSPEC_VSLDOI))] + "VECTOR_UNIT_ALTIVEC_OR_VSX_P (mode) && can_create_pseudo_p ()" + "#" + "&& 1" + [(set (match_dup 0) (match_dup 1))]) + (define_insn "get_vrsave_internal" [(set (match_operand:SI 0 "register_operand" "=r") (unspec:SI [(reg:SI VRSAVE_REGNO)] UNSPEC_GET_VRSAVE))] diff --git a/gcc/testsuite/gcc.target/powerpc/sldoi_to_mov.c b/gcc/testsuite/gcc.target/powerpc/sldoi_to_mov.c new file mode 100644 index 00000000000..2053243c456 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/sldoi_to_mov.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +#include +vector signed int foo1 (vector signed int a) { + vector signed int b = {0}; + return vec_sum2s(a, b); +} + +vector signed int foo2 (vector signed int a) { + vector signed int b = {0}; + return vec_sld(b, b, 4); +} + +/* { dg-final { scan-assembler-times {\mvsldoi\M} 1 {target le} } } */