Message ID | 20220907142026.936922-3-stefansf@linux.ibm.com |
---|---|
State | New |
Headers | show |
Series | Variable tracking and subvalues | expand |
Ping. On Wed, Sep 07, 2022 at 04:20:26PM +0200, Stefan Schulze Frielinghaus wrote: > For parameter of type integer which do not consume a whole register > (modulo sign/zero extension) this patch adds entry values up to maximal > register mode. > > gcc/ChangeLog: > > * var-tracking.cc (vt_add_function_parameter): Add entry values > up to maximal register mode. > --- > gcc/var-tracking.cc | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/gcc/var-tracking.cc b/gcc/var-tracking.cc > index 235981d100f..9c40ec4fb8b 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)) > -- > 2.37.2 >
On 9/7/22 08:20, Stefan Schulze Frielinghaus via Gcc-patches wrote: > For parameter of type integer which do not consume a whole register > (modulo sign/zero extension) this patch adds entry values up to maximal > register mode. > > gcc/ChangeLog: > > * var-tracking.cc (vt_add_function_parameter): Add entry values > up to maximal register mode. OK jeff
diff --git a/gcc/var-tracking.cc b/gcc/var-tracking.cc index 235981d100f..9c40ec4fb8b 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))