diff options
Diffstat (limited to 'gas/config/tc-aarch64.c')
| -rw-r--r-- | gas/config/tc-aarch64.c | 44 |
1 files changed, 29 insertions, 15 deletions
diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c index 522efeb..b4ee062 100644 --- a/gas/config/tc-aarch64.c +++ b/gas/config/tc-aarch64.c @@ -3402,6 +3402,7 @@ parse_shifter_operand_reloc (char **str, aarch64_opnd_info *operand, [base,Xm,SXTX {#imm}] [base,Wm,(S|U)XTW {#imm}] Pre-indexed + [base]! // in ldraa/ldrab exclusive [base,#imm]! Post-indexed [base],#imm @@ -3716,29 +3717,42 @@ parse_address_main (char **str, aarch64_opnd_info *operand, } /* If at this point neither .preind nor .postind is set, we have a - bare [Rn]{!}; reject [Rn]! accept [Rn] as a shorthand for [Rn,#0]. + bare [Rn]{!}; only accept [Rn]! as a shorthand for [Rn,#0]! for ldraa and + ldrab, accept [Rn] as a shorthand for [Rn,#0]. For SVE2 vector plus scalar offsets, allow [Zn.<T>] as shorthand for [Zn.<T>, xzr]. */ if (operand->addr.preind == 0 && operand->addr.postind == 0) { if (operand->addr.writeback) { - /* Reject [Rn]! */ - set_syntax_error (_("missing offset in the pre-indexed address")); - return FALSE; + if (operand->type == AARCH64_OPND_ADDR_SIMM10) + { + /* Accept [Rn]! as a shorthand for [Rn,#0]! */ + operand->addr.offset.is_reg = 0; + operand->addr.offset.imm = 0; + operand->addr.preind = 1; + } + else + { + /* Reject [Rn]! */ + set_syntax_error (_("missing offset in the pre-indexed address")); + return FALSE; + } } - - operand->addr.preind = 1; - if (operand->type == AARCH64_OPND_SVE_ADDR_ZX) - { - operand->addr.offset.is_reg = 1; - operand->addr.offset.regno = REG_ZR; - *offset_qualifier = AARCH64_OPND_QLF_X; - } - else + else { - inst.reloc.exp.X_op = O_constant; - inst.reloc.exp.X_add_number = 0; + operand->addr.preind = 1; + if (operand->type == AARCH64_OPND_SVE_ADDR_ZX) + { + operand->addr.offset.is_reg = 1; + operand->addr.offset.regno = REG_ZR; + *offset_qualifier = AARCH64_OPND_QLF_X; + } + else + { + inst.reloc.exp.X_op = O_constant; + inst.reloc.exp.X_add_number = 0; + } } } |