re PR rtl-optimization/68955 (wrong code at -O3 on x86-64-linux-gnu in 32-bit mode)

	PR rtl-optimization/68955
	PR rtl-optimization/64557
	* dse.c (record_store, check_mem_read_rtx): Don't call get_addr
	here.  Fix up formatting.
	* alias.c (get_addr): Handle VALUE +/- CONST_SCALAR_INT_P.

	* gcc.dg/torture/pr68955.c: New test.

From-SVN: r232554

1 files changed, 2 insertions, 12 deletions

diff --git a/gcc/dse.c b/gcc/dse.c
index 7dc0b8a..99f23ca 100644
--- a/gcc/dse.c
+++ b/gcc/dse.c
@@ -1515,14 +1515,9 @@ record_store (rtx body, bb_info_t bb_info)
 	mem_addr = base->val_rtx;
       else
 	{
-	  group_info *group
-	    = rtx_group_vec[group_id];
+	  group_info *group = rtx_group_vec[group_id];
 	  mem_addr = group->canon_base_addr;
 	}
-      /* get_addr can only handle VALUE but cannot handle expr like:
-	 VALUE + OFFSET, so call get_addr to get original addr for
-	 mem_addr before plus_constant.  */
-      mem_addr = get_addr (mem_addr);
       if (offset)
 	mem_addr = plus_constant (get_address_mode (mem), mem_addr, offset);
     }
@@ -2128,14 +2123,9 @@ check_mem_read_rtx (rtx *loc, bb_info_t bb_info)
 	mem_addr = base->val_rtx;
       else
 	{
-	  group_info *group
-	    = rtx_group_vec[group_id];
+	  group_info *group = rtx_group_vec[group_id];
 	  mem_addr = group->canon_base_addr;
 	}
-      /* get_addr can only handle VALUE but cannot handle expr like:
-	 VALUE + OFFSET, so call get_addr to get original addr for
-	 mem_addr before plus_constant.  */
-      mem_addr = get_addr (mem_addr);
       if (offset)
 	mem_addr = plus_constant (get_address_mode (mem), mem_addr, offset);
     }