diff options
Diffstat (limited to 'gcc/except.cc')
| -rw-r--r-- | gcc/except.cc | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/gcc/except.cc b/gcc/except.cc index d5eb927..205811c 100644 --- a/gcc/except.cc +++ b/gcc/except.cc @@ -970,12 +970,26 @@ expand_dw2_landing_pad_for_region (eh_region region) { /* Nothing */ } if (region->exc_ptr_reg) - emit_move_insn (region->exc_ptr_reg, - gen_rtx_REG (ptr_mode, EH_RETURN_DATA_REGNO (0))); + { + rtx exc_ptr_reg; + if (EH_RETURN_DATA_REGNO (0) != INVALID_REGNUM) + exc_ptr_reg = gen_rtx_REG (ptr_mode, EH_RETURN_DATA_REGNO (0)); + else + /* The target must be doing something special. Submit a dummy. */ + exc_ptr_reg = constm1_rtx; + emit_move_insn (region->exc_ptr_reg, exc_ptr_reg); + } if (region->filter_reg) - emit_move_insn (region->filter_reg, - gen_rtx_REG (targetm.eh_return_filter_mode (), - EH_RETURN_DATA_REGNO (1))); + { + rtx filter_reg; + if (EH_RETURN_DATA_REGNO (1) != INVALID_REGNUM) + filter_reg = gen_rtx_REG (targetm.eh_return_filter_mode (), + EH_RETURN_DATA_REGNO (1)); + else + /* The target must be doing something special. Submit a dummy. */ + filter_reg = constm1_rtx; + emit_move_insn (region->filter_reg, filter_reg); + } } /* Expand the extra code needed at landing pads for dwarf2 unwinding. */ |