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var-tracking.c (vt_add_function_parameter): Use a preserved VALUE for the MEM address of an incoming parameter. 

* var-tracking.c (vt_add_function_parameter): Use a preserved
VALUE for the MEM address of an incoming parameter.

From-SVN: r188998
This commit is contained in:
Alexandre Oliva 2012-06-26 20:33:32 +00:00 committed by Alexandre Oliva
parent 2ef1bce664
commit de2c775d66
2 changed files with 16 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2012-06-26 Alexandre Oliva <aoliva@redhat.com>
* var-tracking.c (vt_add_function_parameter): Use a preserved
VALUE for the MEM address of an incoming parameter.
2012-06-26 Sterling Augustine <saugustine@google.com>
* dwarf2out.c (output_pubnames): Add check for DW_TAG_enumerator.

11
gcc/var-tracking.c
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@ -9454,6 +9454,17 @@ vt_add_function_parameter (tree parm)
VAR_INIT_STATUS_INITIALIZED, NULL, INSERT);
dv = dv_from_value (val->val_rtx);
}
if (MEM_P (incoming))
{
val = cselib_lookup_from_insn (XEXP (incoming, 0), mode, true,
VOIDmode, get_insns ());
if (val)
{
preserve_value (val);
incoming = replace_equiv_address_nv (incoming, val->val_rtx);
}
}
}
if (REG_P (incoming))