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authorSudakshina Das <sudi.das@arm.com>2018-11-12 12:52:55 +0000
committerSudakshina Das <sudi.das@arm.com>2018-11-12 12:59:22 +0000
commit193614f2b908c2b55c188cb14c3ef78993ff85b0 (patch)
tree4a762f9576281e236a28853ba62089abdd1b43e8 /opcodes/aarch64-dis.c
parent73b605ec3f546ff5a1c343ae02e6322aaa451bcf (diff)
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[BINUTILS, AARCH64, 2/8] Add Tag generation instructions in Memory Tagging Extension
This patch is part of the patch series to add support for ARMv8.5-A Memory Tagging Extensions which is an optional extension to ARMv8.5-A and is enabled using the +memtag command line option. This patch add support to the Tag generation instructions from MTE. These are the following instructions added in this patch: - IRG <Xd|SP>, <Xn|SP>{, Xm} - ADDG <Xd|SP>, <Xn|SP>, #<uimm1>. #<uimm2> - SUBG <Xd|SP>, <Xn|SP>, #<uimm1>. #<uimm2> - GMI <Xd>, <Xn|SP>, <Xm> where <Xd|SP> : Is the 64-bit destination GPR or Stack pointer. <Xn|SP> : Is the 64-bit source GPR or Stack pointer. <uimm6> : Is the unsigned immediate, a multiple of 16 in the range 0 to 1008. <uimm4> : Is the unsigned immediate, in the range 0 to 15. *** include/ChangeLog *** 2018-11-12 Sudakshina Das <sudi.das@arm.com> * opcode/aarch64.h (aarch64_opnd): Add AARCH64_OPND_UIMM4_ADDG and AARCH64_OPND_UIMM10 as new enums. *** opcodes/ChangeLog *** 2018-11-12 Sudakshina Das <sudi.das@arm.com> * aarch64-opc.h (aarch64_field_kind): New FLD_imm4_3. (OPD_F_SHIFT_BY_4, operand_need_shift_by_four): New. * aarch64-opc.c (fields): Add entry for imm4_3. (operand_general_constraint_met_p): Add cases for AARCH64_OPND_UIMM4_ADDG and AARCH64_OPND_UIMM10. (aarch64_print_operand): Likewise. * aarch64-tbl.h (QL_ADDG): New. (aarch64_opcode_table): Add addg, subg, irg and gmi. (AARCH64_OPERANDS): Define UIMM4_ADDG and UIMM10. * aarch64-asm.c (aarch64_ins_imm): Add case for operand_need_shift_by_four. * aarch64-asm-2.c: Regenerated. * aarch64-dis-2.c: Regenerated. * aarch64-opc-2.c: Regenerated. *** gas/ChangeLog *** 2018-11-12 Sudakshina Das <sudi.das@arm.com> * config/tc-aarch64.c (parse_operands): Add switch case for AARCH64_OPND_UIMM4_ADDG and AARCH64_OPND_UIMM10. * testsuite/gas/aarch64/armv8_5-a-memtag.s: New. * testsuite/gas/aarch64/armv8_5-a-memtag.d: Likewise. * testsuite/gas/aarch64/illegal-memtag.s: Likewise. * testsuite/gas/aarch64/illegal-memtag.l: Likewise. * testsuite/gas/aarch64/illegal-memtag.d: Likewise.
Diffstat (limited to 'opcodes/aarch64-dis.c')
-rw-r--r--opcodes/aarch64-dis.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/opcodes/aarch64-dis.c b/opcodes/aarch64-dis.c
index 03851ca..b37741a 100644
--- a/opcodes/aarch64-dis.c
+++ b/opcodes/aarch64-dis.c
@@ -665,6 +665,8 @@ aarch64_ext_imm (const aarch64_operand *self, aarch64_opnd_info *info,
if (operand_need_shift_by_two (self))
imm <<= 2;
+ else if (operand_need_shift_by_four (self))
+ imm <<= 4;
if (info->type == AARCH64_OPND_ADDR_ADRP)
imm <<= 12;