From de2c775d6602860eb235bf0da5171cb2e4bdd305 Mon Sep 17 00:00:00 2001 From: Alexandre Oliva Date: Tue, 26 Jun 2012 20:33:32 +0000 Subject: [PATCH] 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 --- gcc/ChangeLog | 5 +++++ gcc/var-tracking.c | 11 +++++++++++ 2 files changed, 16 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 33114ed..307a315 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-06-26 Alexandre Oliva + + * var-tracking.c (vt_add_function_parameter): Use a preserved + VALUE for the MEM address of an incoming parameter. + 2012-06-26 Sterling Augustine * dwarf2out.c (output_pubnames): Add check for DW_TAG_enumerator. diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c index 419269f..be638d7 100644 --- a/gcc/var-tracking.c +++ b/gcc/var-tracking.c @@ -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)) -- 2.7.4