diff options
Diffstat (limited to 'gas/config')
-rw-r--r-- | gas/config/tc-aarch64.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c index f8b2152..3198596 100644 --- a/gas/config/tc-aarch64.c +++ b/gas/config/tc-aarch64.c @@ -6705,6 +6705,22 @@ warn_unpredictable_ldst (aarch64_instruction *instr, char *str) && opnds[0].reg.regno == opnds[1].reg.regno) as_warn (_("unpredictable load of register pair -- `%s'"), str); break; + + case ldstexcl: + /* It is unpredictable if the destination and status registers are the + same. */ + if ((aarch64_get_operand_class (opnds[0].type) + == AARCH64_OPND_CLASS_INT_REG) + && (aarch64_get_operand_class (opnds[1].type) + == AARCH64_OPND_CLASS_INT_REG) + && (opnds[0].reg.regno == opnds[1].reg.regno + || opnds[0].reg.regno == opnds[2].reg.regno)) + as_warn (_("unpredictable: identical transfer and status registers" + " --`%s'"), + str); + + break; + default: break; } |