diff options
Diffstat (limited to 'gcc/config/m68hc11/m68hc11.c')
| -rw-r--r-- | gcc/config/m68hc11/m68hc11.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/config/m68hc11/m68hc11.c b/gcc/config/m68hc11/m68hc11.c index dadbd9a..321e1ab 100644 --- a/gcc/config/m68hc11/m68hc11.c +++ b/gcc/config/m68hc11/m68hc11.c @@ -1010,6 +1010,24 @@ non_push_operand (rtx operand, enum machine_mode mode) } int +splitable_operand (rtx operand, enum machine_mode mode) +{ + if (general_operand (operand, mode) == 0) + return 0; + + if (push_operand (operand, mode) == 1) + return 0; + + /* Reject a (MEM (MEM X)) because the patterns that use non_push_operand + need to split such addresses to access the low and high part but it + is not possible to express a valid address for the low part. */ + if (mode != QImode && GET_CODE (operand) == MEM + && GET_CODE (XEXP (operand, 0)) == MEM) + return 0; + return 1; +} + +int reg_or_some_mem_operand (rtx operand, enum machine_mode mode) { if (GET_CODE (operand) == MEM) |