diff options
Diffstat (limited to 'gcc/config/s390/s390.c')
| -rw-r--r-- | gcc/config/s390/s390.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index 73465ef21e4..7e7ed45230a 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -835,6 +835,15 @@ s390_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED, insn_op = &insn_data[icode].operand[arity + nonvoid]; op[arity] = expand_expr (arg, NULL_RTX, insn_op->mode, EXPAND_NORMAL); + /* expand_expr truncates constants to the target mode only if it + is "convenient". However, our checks below rely on this + being done. */ + if (CONST_INT_P (op[arity]) + && SCALAR_INT_MODE_P (insn_op->mode) + && GET_MODE (op[arity]) != insn_op->mode) + op[arity] = GEN_INT (trunc_int_for_mode (INTVAL (op[arity]), + insn_op->mode)); + /* Wrap the expanded RTX for pointer types into a MEM expr with the proper mode. This allows us to use e.g. (match_operand "memory_operand"..) in the insn patterns instead of (mem |