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Diffstat (limited to 'gcc/var-tracking.cc')
| -rw-r--r-- | gcc/var-tracking.cc | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/var-tracking.cc b/gcc/var-tracking.cc index 235981d..9c40ec4 100644 --- a/gcc/var-tracking.cc +++ b/gcc/var-tracking.cc @@ -9906,6 +9906,23 @@ vt_add_function_parameter (tree parm) VAR_INIT_STATUS_INITIALIZED, NULL, INSERT); } } + + if (GET_MODE_CLASS (mode) == MODE_INT) + { + machine_mode wider_mode_iter; + FOR_EACH_WIDER_MODE (wider_mode_iter, mode) + { + if (!HWI_COMPUTABLE_MODE_P (wider_mode_iter)) + break; + rtx wider_reg + = gen_rtx_REG (wider_mode_iter, REGNO (incoming)); + cselib_val *wider_val + = cselib_lookup_from_insn (wider_reg, wider_mode_iter, 1, + VOIDmode, get_insns ()); + preserve_value (wider_val); + record_entry_value (wider_val, wider_reg); + } + } } } else if (GET_CODE (incoming) == PARALLEL && !dv_onepart_p (dv)) |