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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Mar 2024 17:32:40.6763 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1d2e11fd-ee6a-4500-8635-08dc3f95c167 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM4PEPF00027A66.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB4PR08MB8053 X-Spam-Status: No, score=-11.8 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,GIT_PATCH_0,KAM_DMARC_NONE,KAM_LOTSOFHASH,KAM_NUMSUBJECT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Support for these extensions is broken and incomplete in the 2.42 branch, with a number of syntax and opcode bugs. This patch removes the flags and documentation, to avoid any further suggestion that this extension is fully and correctly supported. --- Is this version ok for the 2.42 branch? diff --git a/gas/NEWS b/gas/NEWS index 67d806cbf89e07ea5507968086e84934649dfec6..dfccd9f1dc779c233a4646468ff924f76387282f 100644 --- a/gas/NEWS +++ b/gas/NEWS @@ -1,15 +1,14 @@ -*- text -*- -Changes in 2.42: - -* Added support for AMD znver5 processor (available from GNU Binutils 2.42 release). +Changes in 2.42.1: -* Add support for the AArch64 Scalable Vector Extension version 2.1 (SVE2.1). +* The options to enable the AArch64 SVE2.1, SME2.1 and B16B16 extensions have + been disabled, because of a number of known issues with their implementation + in the 2.42 release. -* Add support for the AArch64 Scalable Matrix Extension version 2.1 (SME2.1). +Changes in 2.42: -* Add support for the AArch64 BFloat16 to BFloat16 arithmetic for SVE2 and SME2 - (B16B16). +* Added support for AMD znver5 processor (available from GNU Binutils 2.42 release). * Add support for the AArch64 Reliability, Availability and Serviceability extension v2 (RASv2). diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c index 0c6de289408f4c53633e468c610623c22a0fdec8..a7c29d2f03f74a0384dcb5b96c08a1827cda5a8d 100644 --- a/gas/config/tc-aarch64.c +++ b/gas/config/tc-aarch64.c @@ -10425,9 +10425,6 @@ static const struct aarch64_option_cpu_value_table aarch64_features[] = { {"ite", AARCH64_FEATURE (ITE), AARCH64_NO_FEATURES}, {"d128", AARCH64_FEATURE (D128), AARCH64_FEATURE (LSE128)}, - {"b16b16", AARCH64_FEATURE (B16B16), AARCH64_FEATURE (SVE2)}, - {"sme2p1", AARCH64_FEATURE (SME2p1), AARCH64_FEATURE (SME2)}, - {"sve2p1", AARCH64_FEATURE (SVE2p1), AARCH64_FEATURE (SVE2)}, {"rcpc3", AARCH64_FEATURE (RCPC3), AARCH64_FEATURE (RCPC2)}, {NULL, AARCH64_NO_FEATURES, AARCH64_NO_FEATURES}, }; diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi index 4f97768206cd9c7efcb0cc25af497c032d66dbf8..77226a07973c9e9c232c595b14bd82728648170e 100644 --- a/gas/doc/c-aarch64.texi +++ b/gas/doc/c-aarch64.texi @@ -161,8 +161,6 @@ automatically cause those extensions to be disabled. @headitem Extension @tab Depends upon @tab Description @item @code{aes} @tab @code{simd} @tab Enable the AES and PMULL cryptographic extensions. -@item @code{b16b16} @tab @code{sve2} - @tab Enable BFloat16 to BFloat16 arithmetic for SVE2 and SME2. @item @code{bf16} @tab @code{fp} @tab Enable BFloat16 extension. @item @code{chk} @tab @@ -263,8 +261,6 @@ automatically cause those extensions to be disabled. @tab Enable SME I16I64 Extension. @item @code{sme2} @tab @code{sme} @tab Enable SME2. -@item @code{sme2p1} @tab @code{sme2} - @tab Enable SME2.1. @item @code{ssbs} @tab @tab Enable Speculative Store Bypassing Safe state read and write. @item @code{sve} @tab @code{fcma} @@ -279,8 +275,6 @@ automatically cause those extensions to be disabled. @tab Enable the SVE2 SHA3 Extension. @item @code{sve2-sm4} @tab @code{sve2}, @code{sm4} @tab Enable the SVE2 SM4 Extension. -@item @code{sve2p1} @tab @code{sve2} - @tab Enable SVE2.1. @item @code{the} @tab @tab Enable the Translation Hardening Extension. @item @code{tme} @tab diff --git a/gas/testsuite/gas/aarch64/bfloat16-1.d b/gas/testsuite/gas/aarch64/bfloat16-1.d index f0d436bec585ff2aee2e007d63fc672a11a569b9..0f4ab764d24ee63602ba7c6b3141815b343e9e4a 100644 --- a/gas/testsuite/gas/aarch64/bfloat16-1.d +++ b/gas/testsuite/gas/aarch64/bfloat16-1.d @@ -1,6 +1,7 @@ #name: Test of SVE2.1 and SME2.1 non-widening BFloat16 instructions. #as: -march=armv9.4-a+b16b16 #objdump: -dr +#xfail: *-*-* [^:]+: file format .* diff --git a/gas/testsuite/gas/aarch64/sme2p1-1.d b/gas/testsuite/gas/aarch64/sme2p1-1.d index a6e7b7664024e7f03ddd1d8ece9d6c3bd1c79042..4b94cc9e4a0b86eeae64124941f35a0500637377 100644 --- a/gas/testsuite/gas/aarch64/sme2p1-1.d +++ b/gas/testsuite/gas/aarch64/sme2p1-1.d @@ -1,6 +1,7 @@ #name: Test of SME2.1 movaz instructions. #as: -march=armv9.4-a+sme2p1 #objdump: -dr +#xfail: *-*-* [^:]+: file format .* diff --git a/gas/testsuite/gas/aarch64/sve2p1-1.d b/gas/testsuite/gas/aarch64/sve2p1-1.d index daece899b38bba4daa2ca9e58dba2d551f6cf988..72fac004141cc221b75a2714ce32d864e39d2b6b 100644 --- a/gas/testsuite/gas/aarch64/sve2p1-1.d +++ b/gas/testsuite/gas/aarch64/sve2p1-1.d @@ -1,6 +1,7 @@ #name: Test of SVE2.1 min max instructions. #as: -march=armv9.4-a+sve2p1 #objdump: -dr +#xfail: *-*-* [^:]+: file format .*