From d346e1aafd10442d85fc149a663bb298cebc0fc7 Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Thu, 30 Mar 2023 11:09:02 +0100 Subject: [PATCH] aarch64: Fix PSEL opcode mask The opcode mask for PSEL was missing some bits, which meant that some upcoming SME2 opcodes would be misinterpreted as PSELs. --- gas/testsuite/gas/aarch64/sme-9.d | 3 +++ gas/testsuite/gas/aarch64/sme-9.s | 5 +++++ opcodes/aarch64-tbl.h | 2 +- 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/gas/testsuite/gas/aarch64/sme-9.d b/gas/testsuite/gas/aarch64/sme-9.d index ef314c61451..9a6175c3906 100644 --- a/gas/testsuite/gas/aarch64/sme-9.d +++ b/gas/testsuite/gas/aarch64/sme-9.d @@ -71,3 +71,6 @@ Disassembly of section \.text: f4: 44cbc544 uclamp z4.d, z10.d, z11.d f8: 25277c61 psel p1, p15, p3.b\[w15, 0\] fc: 252778a2 psel p2, p14, p5.b\[w15, 0\] + 100: 25244200 \.inst 0x25244200 ; undefined + 104: 25244010 \.inst 0x25244010 ; undefined + 108: 25244210 \.inst 0x25244210 ; undefined diff --git a/gas/testsuite/gas/aarch64/sme-9.s b/gas/testsuite/gas/aarch64/sme-9.s index be8511fe3df..495a7f9fbf0 100644 --- a/gas/testsuite/gas/aarch64/sme-9.s +++ b/gas/testsuite/gas/aarch64/sme-9.s @@ -84,3 +84,8 @@ foo .req p1 bar .req w15 psel foo, p15, p3.b[w15, 0] psel p2, p14, p5.b[bar, 0] + +// These were previously incorrectly decoded as PSELs. +.inst 0x25244200 +.inst 0x25244010 +.inst 0x25244210 diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h index 69703650471..96e6c136282 100644 --- a/opcodes/aarch64-tbl.h +++ b/opcodes/aarch64-tbl.h @@ -5275,7 +5275,7 @@ const struct aarch64_opcode aarch64_opcode_table[] = SME_INSNC ("revd", 0x52e8000, 0xffffe000, sme_misc, 0, OP3 (SVE_Zd, SVE_Pg3, SVE_Zn), OP_SVE_QMQ, 0, C_SCAN_MOVPRFX, 0), SME_INSNC ("sclamp", 0x4400c000, 0xff20fc00, sve_size_bhsd, 0, OP3 (SVE_Zd, SVE_Zn, SVE_Zm_16), OP_SVE_VVV_BHSD, 0, C_SCAN_MOVPRFX, 0), SME_INSNC ("uclamp", 0x4400c400, 0xff20fc00, sve_size_bhsd, 0, OP3 (SVE_Zd, SVE_Zn, SVE_Zm_16), OP_SVE_VVV_BHSD, 0, C_SCAN_MOVPRFX, 0), - SME_INSN ("psel", 0x25204000, 0xff20c000, sme_misc, 0, OP3 (SVE_Pd, SVE_Pg4_10, SME_PnT_Wm_imm), OP_SVE_NN_BHSD, 0, 0), + SME_INSN ("psel", 0x25204000, 0xff20c210, sme_misc, 0, OP3 (SVE_Pd, SVE_Pg4_10, SME_PnT_Wm_imm), OP_SVE_NN_BHSD, 0, 0), /* SIMD Dot Product (optional in v8.2-A). */ DOT_INSN ("udot", 0x2e009400, 0xbf20fc00, dotproduct, OP3 (Vd, Vn, Vm), QL_V3DOT, F_SIZEQ), -- 2.30.2