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GET /api/patches/1839982/?format=api
{ "id": 1839982, "url": "http://patchwork.ozlabs.org/api/patches/1839982/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/patch-17723-tamar@arm.com/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<patch-17723-tamar@arm.com>", "list_archive_url": null, "date": "2023-09-27T00:51:01", "name": "AArch64 Add movi for 0 moves for scalar types [PR109154]", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "5da589d59e641a41f092d70ef6e568b9eea3ceeb", "submitter": { "id": 69689, "url": "http://patchwork.ozlabs.org/api/people/69689/?format=api", "name": "Tamar Christina", "email": "Tamar.Christina@arm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/patch-17723-tamar@arm.com/mbox/", "series": [ { "id": 375020, "url": "http://patchwork.ozlabs.org/api/series/375020/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=375020", "date": "2023-09-27T00:51:01", "name": "AArch64 Add movi for 0 moves for scalar types [PR109154]", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/375020/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1839982/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1839982/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=armh.onmicrosoft.com header.i=@armh.onmicrosoft.com\n header.a=rsa-sha256 header.s=selector2-armh-onmicrosoft-com\n header.b=mVmTvvZC;\n\tdkim=pass (1024-bit key) header.d=armh.onmicrosoft.com\n header.i=@armh.onmicrosoft.com header.a=rsa-sha256\n header.s=selector2-armh-onmicrosoft-com header.b=mVmTvvZC;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=8.43.85.97; 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Ip=[63.35.35.123];\n Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n AM7EUR03FT010.eop-EUR03.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-Spam-Status": "No, score=-12.0 required=5.0 tests=BAYES_00, DKIM_SIGNED,\n DKIM_VALID, FORGED_SPF_HELO, GIT_PATCH_0, KAM_DMARC_NONE, KAM_LOTSOFHASH,\n KAM_SHORT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_NONE,\n TXREP, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6", "X-Spam-Checker-Version": "SpamAssassin 3.4.6 (2021-04-09) on\n server2.sourceware.org", "X-BeenThere": "gcc-patches@gcc.gnu.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Gcc-patches mailing list <gcc-patches.gcc.gnu.org>", "List-Unsubscribe": "<https://gcc.gnu.org/mailman/options/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe>", "List-Archive": "<https://gcc.gnu.org/pipermail/gcc-patches/>", "List-Post": "<mailto:gcc-patches@gcc.gnu.org>", "List-Help": "<mailto:gcc-patches-request@gcc.gnu.org?subject=help>", "List-Subscribe": "<https://gcc.gnu.org/mailman/listinfo/gcc-patches>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>", "Errors-To": "gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "Hi All,\n\nFollowing the Neoverse N/V and Cortex-A optimization guides SIMD 0 immediates\nshould be created with a movi of 0.\n\nAt the moment we generate an `fmov .., xzr` which is slower and requires a\nGP -> FP transfer.\n\nBootstrapped Regtested on aarch64-none-linux-gnu and no issues.\n\nOk for master?\n\nThanks,\nTamar\n\ngcc/ChangeLog:\n\n\tPR tree-optimization/109154\n\t* config/aarch64/aarch64.md (*mov<mode>_aarch64, *movsi_aarch64,\n\t*movdi_aarch64): Add new w -> Z case.\n\t* config/aarch64/iterators.md (Vbtype): Add QI and HI.\n\ngcc/testsuite/ChangeLog:\n\n\tPR tree-optimization/109154\n\t* gcc.target/aarch64/fneg-abs_2.c: Updated.\n\t* gcc.target/aarch64/fneg-abs_4.c: Updated.\n\n--- inline copy of patch -- \ndiff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md\nindex b51f979dba12b726bff0c1109b75c6d2c7ae41ab..60c92213c75a2a4c18a6b59ae52fe45d1e872718 100644\n\n\n\n\n--\ndiff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md\nindex b51f979dba12b726bff0c1109b75c6d2c7ae41ab..60c92213c75a2a4c18a6b59ae52fe45d1e872718 100644\n--- a/gcc/config/aarch64/aarch64.md\n+++ b/gcc/config/aarch64/aarch64.md\n@@ -1232,6 +1232,7 @@ (define_insn \"*mov<mode>_aarch64\"\n \"(register_operand (operands[0], <MODE>mode)\n || aarch64_reg_or_zero (operands[1], <MODE>mode))\"\n {@ [cons: =0, 1; attrs: type, arch]\n+ [w, Z ; neon_move , simd ] movi\\t%0.<Vbtype>, #0\n [r, r ; mov_reg , * ] mov\\t%w0, %w1\n [r, M ; mov_imm , * ] mov\\t%w0, %1\n [w, D<hq>; neon_move , simd ] << aarch64_output_scalar_simd_mov_immediate (operands[1], <MODE>mode);\n@@ -1289,6 +1290,7 @@ (define_insn_and_split \"*movsi_aarch64\"\n \"(register_operand (operands[0], SImode)\n || aarch64_reg_or_zero (operands[1], SImode))\"\n {@ [cons: =0, 1; attrs: type, arch, length]\n+ [w , Z ; neon_move, simd, 4] movi\\t%0.2d, #0\n [r k, r ; mov_reg , * , 4] mov\\t%w0, %w1\n [r , k ; mov_reg , * , 4] ^\n [r , M ; mov_imm , * , 4] mov\\t%w0, %1\n@@ -1322,6 +1324,7 @@ (define_insn_and_split \"*movdi_aarch64\"\n \"(register_operand (operands[0], DImode)\n || aarch64_reg_or_zero (operands[1], DImode))\"\n {@ [cons: =0, 1; attrs: type, arch, length]\n+ [w, Z ; neon_move, simd, 4] movi\\t%0.2d, #0\n [r, r ; mov_reg , * , 4] mov\\t%x0, %x1\n [k, r ; mov_reg , * , 4] mov\\t%0, %x1\n [r, k ; mov_reg , * , 4] mov\\t%x0, %1\ndiff --git a/gcc/config/aarch64/iterators.md b/gcc/config/aarch64/iterators.md\nindex 2451d8c2cd8e2da6ac8339eed9bc975cf203fa4c..d17becc37e230684beaee3c69e2a0f0ce612eda5 100644\n--- a/gcc/config/aarch64/iterators.md\n+++ b/gcc/config/aarch64/iterators.md\n@@ -1297,6 +1297,7 @@ (define_mode_attr Vbtype [(V8QI \"8b\") (V16QI \"16b\")\n \t\t\t (V4SF \"16b\") (V2DF \"16b\")\n \t\t\t (DI \"8b\") (DF \"8b\")\n \t\t\t (SI \"8b\") (SF \"8b\")\n+\t\t\t (QI \"8b\") (HI \"8b\")\n \t\t\t (V4BF \"8b\") (V8BF \"16b\")])\n \n ;; Advanced SIMD vector structure to element modes.\ndiff --git a/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c b/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c\nindex fb14ec3e2210e0feeff80f2410d777d3046a9f78..5e253d3059cfc9b93bd0865e6eaed1231eba19bd 100644\n--- a/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c\n+++ b/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c\n@@ -20,7 +20,7 @@ float32_t f1 (float32_t a)\n \n /*\n ** f2:\n-**\tfmov\td[0-9]+, xzr\n+**\tmovi\tv[0-9]+.2d, #0\n **\tfneg\tv[0-9]+.2d, v[0-9]+.2d\n **\torr\tv[0-9]+.8b, v[0-9]+.8b, v[0-9]+.8b\n **\tret\ndiff --git a/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c b/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c\nindex 4ea0105f6c0a9756070bcc60d34f142f53d8242c..c86fe3e032c9e5176467841ce1a679ea47bbd531 100644\n--- a/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c\n+++ b/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c\n@@ -8,7 +8,7 @@\n \n /*\n ** negabs:\n-**\tfmov\td[0-9]+, xzr\n+**\tmovi\tv31.2d, #0\n **\tfneg\tv[0-9]+.2d, v[0-9]+.2d\n **\torr\tv[0-9]+.8b, v[0-9]+.8b, v[0-9]+.8b\n **\tret", "diff": "--- a/gcc/config/aarch64/aarch64.md\n+++ b/gcc/config/aarch64/aarch64.md\n@@ -1232,6 +1232,7 @@ (define_insn \"*mov<mode>_aarch64\"\n \"(register_operand (operands[0], <MODE>mode)\n || aarch64_reg_or_zero (operands[1], <MODE>mode))\"\n {@ [cons: =0, 1; attrs: type, arch]\n+ [w, Z ; neon_move , simd ] movi\\t%0.<Vbtype>, #0\n [r, r ; mov_reg , * ] mov\\t%w0, %w1\n [r, M ; mov_imm , * ] mov\\t%w0, %1\n [w, D<hq>; neon_move , simd ] << aarch64_output_scalar_simd_mov_immediate (operands[1], <MODE>mode);\n@@ -1289,6 +1290,7 @@ (define_insn_and_split \"*movsi_aarch64\"\n \"(register_operand (operands[0], SImode)\n || aarch64_reg_or_zero (operands[1], SImode))\"\n {@ [cons: =0, 1; attrs: type, arch, length]\n+ [w , Z ; neon_move, simd, 4] movi\\t%0.2d, #0\n [r k, r ; mov_reg , * , 4] mov\\t%w0, %w1\n [r , k ; mov_reg , * , 4] ^\n [r , M ; mov_imm , * , 4] mov\\t%w0, %1\n@@ -1322,6 +1324,7 @@ (define_insn_and_split \"*movdi_aarch64\"\n \"(register_operand (operands[0], DImode)\n || aarch64_reg_or_zero (operands[1], DImode))\"\n {@ [cons: =0, 1; attrs: type, arch, length]\n+ [w, Z ; neon_move, simd, 4] movi\\t%0.2d, #0\n [r, r ; mov_reg , * , 4] mov\\t%x0, %x1\n [k, r ; mov_reg , * , 4] mov\\t%0, %x1\n [r, k ; mov_reg , * , 4] mov\\t%x0, %1\ndiff --git a/gcc/config/aarch64/iterators.md b/gcc/config/aarch64/iterators.md\nindex 2451d8c2cd8e2da6ac8339eed9bc975cf203fa4c..d17becc37e230684beaee3c69e2a0f0ce612eda5 100644\n--- a/gcc/config/aarch64/iterators.md\n+++ b/gcc/config/aarch64/iterators.md\n@@ -1297,6 +1297,7 @@ (define_mode_attr Vbtype [(V8QI \"8b\") (V16QI \"16b\")\n \t\t\t (V4SF \"16b\") (V2DF \"16b\")\n \t\t\t (DI \"8b\") (DF \"8b\")\n \t\t\t (SI \"8b\") (SF \"8b\")\n+\t\t\t (QI \"8b\") (HI \"8b\")\n \t\t\t (V4BF \"8b\") (V8BF \"16b\")])\n \n ;; Advanced SIMD vector structure to element modes.\ndiff --git a/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c b/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c\nindex fb14ec3e2210e0feeff80f2410d777d3046a9f78..5e253d3059cfc9b93bd0865e6eaed1231eba19bd 100644\n--- a/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c\n+++ b/gcc/testsuite/gcc.target/aarch64/fneg-abs_2.c\n@@ -20,7 +20,7 @@ float32_t f1 (float32_t a)\n \n /*\n ** f2:\n-**\tfmov\td[0-9]+, xzr\n+**\tmovi\tv[0-9]+.2d, #0\n **\tfneg\tv[0-9]+.2d, v[0-9]+.2d\n **\torr\tv[0-9]+.8b, v[0-9]+.8b, v[0-9]+.8b\n **\tret\ndiff --git a/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c b/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c\nindex 4ea0105f6c0a9756070bcc60d34f142f53d8242c..c86fe3e032c9e5176467841ce1a679ea47bbd531 100644\n--- a/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c\n+++ b/gcc/testsuite/gcc.target/aarch64/fneg-abs_4.c\n@@ -8,7 +8,7 @@\n \n /*\n ** negabs:\n-**\tfmov\td[0-9]+, xzr\n+**\tmovi\tv31.2d, #0\n **\tfneg\tv[0-9]+.2d, v[0-9]+.2d\n **\torr\tv[0-9]+.8b, v[0-9]+.8b, v[0-9]+.8b\n **\tret\n", "prefixes": [] }