From: H.J. Lu <hongjiu.lu@intel.com>
Date: Thu, 17 Mar 2011 19:51:03 +0000 (+0000)
Subject: Check SUBREG in prepare_call_arguments.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fe58e02b2255c2e0b8258484689e9afc8598fcc0;p=gcc.git

Check SUBREG in prepare_call_arguments.

2011-03-17  H.J. Lu  <hongjiu.lu@intel.com>

	PR debug/48160
	* var-tracking.c (prepare_call_arguments): Check SUBREG.

From-SVN: r171108
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7d028f7fae8..887e014cbba 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2011-03-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR debug/48160
+	* var-tracking.c (prepare_call_arguments): Check SUBREG.
+
 2011-03-17  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/48171
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c
index aab98331df3..7c4c2c57b36 100644
--- a/gcc/var-tracking.c
+++ b/gcc/var-tracking.c
@@ -5770,7 +5770,11 @@ prepare_call_arguments (basic_block bb, rtx insn)
 
 		    /* Try harder, when passing address of a constant
 		       pool integer it can be easily read back.  */
-		    val = CSELIB_VAL_PTR (XEXP (item, 1));
+		    item = XEXP (item, 1);
+		    if (GET_CODE (item) == SUBREG)
+		      item = SUBREG_REG (item);
+		    gcc_assert (GET_CODE (item) == VALUE);
+		    val = CSELIB_VAL_PTR (item);
 		    for (l = val->locs; l; l = l->next)
 		      if (GET_CODE (l->loc) == SYMBOL_REF
 			  && TREE_CONSTANT_POOL_ADDRESS_P (l->loc)