From: hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 10 Oct 2008 23:28:05 +0000 (+0000)
Subject: 2008-10-10  H.J. Lu  <hongjiu.lu@intel.com>
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5a8213013bc26400605b09ba271c861a596032fe;p=thirdparty%2Fgcc.git

2008-10-10  H.J. Lu  <hongjiu.lu@intel.com>

	PR debug/37002
	* dwarf2out.c (mem_loc_descriptor): Use DRAP for vDRAP which
	has been optimized out.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@141049 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c3c59084ee59..2bc2367e71e0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-10-10  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR debug/37002
+	* dwarf2out.c (mem_loc_descriptor): Use DRAP for vDRAP which
+	has been optimized out.
+
 2008-10-10  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	* config/sh/sh.h (PREFERRED_RELOAD_CLASS): Test PIC_ADDR_P
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index ed4d74d0e518..614871ed917e 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -10008,6 +10008,16 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
 	 distinction between OP_REG and OP_BASEREG.  */
       if (REGNO (rtl) < FIRST_PSEUDO_REGISTER)
 	mem_loc_result = based_loc_descr (rtl, 0, VAR_INIT_STATUS_INITIALIZED);
+      else if (stack_realign_drap
+	       && crtl->drap_reg
+	       && crtl->args.internal_arg_pointer == rtl
+	       && REGNO (crtl->drap_reg) < FIRST_PSEUDO_REGISTER)
+	{
+	  /* If RTL is internal_arg_pointer, which has been optimized
+	     out, use DRAP instead.  */
+	  mem_loc_result = based_loc_descr (crtl->drap_reg, 0,
+					    VAR_INIT_STATUS_INITIALIZED);
+	}
       break;
 
     case MEM: