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-rw-r--r--gas/config/tc-arm.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 8137868..67b36d5 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -10273,9 +10273,24 @@ do_t_mov_cmp (void)
reject_bad_reg (Rn);
reject_bad_reg (Rm);
}
- else if ((Rn == REG_SP || Rn == REG_PC)
- && (Rm == REG_SP || Rm == REG_PC))
- reject_bad_reg (Rm);
+ else if (narrow)
+ {
+ /* This is mov.n. */
+ if ((Rn == REG_SP || Rn == REG_PC)
+ && (Rm == REG_SP || Rm == REG_PC))
+ {
+ as_warn (_("Use of r%u as a source register is "
+ "deprecated when r%u is the destination "
+ "register."), Rm, Rn);
+ }
+ }
+ else
+ {
+ /* This is mov.w. */
+ constraint (Rn == REG_PC, BAD_PC);
+ constraint (Rm == REG_PC, BAD_PC);
+ constraint (Rn == REG_SP && Rm == REG_SP, BAD_SP);
+ }
}
else
reject_bad_reg (Rn);