* [PATCH] Fix PR44890
@ 2010-07-09 18:31 Richard Guenther
0 siblings, 0 replies; only message in thread
From: Richard Guenther @ 2010-07-09 18:31 UTC (permalink / raw)
To: gcc-patches
This fixes PR44890 - IVOPTs still sometimes creates non-pointer
induction variables for TMR_BASE.
Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
2010-07-09 Richard Guenther <rguenther@suse.de>
PR middle-end/44890
* tree-ssa-address.c (create_mem_ref_raw): Only build a MEM_REF
if base is a pointer.
* tree-cfg.c (verify_expr): Update MEM_REF checking.
Index: gcc/tree-ssa-address.c
===================================================================
--- gcc/tree-ssa-address.c (revision 161994)
+++ gcc/tree-ssa-address.c (working copy)
@@ -352,7 +352,8 @@ create_mem_ref_raw (tree type, tree alia
/* If possible use a plain MEM_REF instead of a TARGET_MEM_REF. */
if (alias_ptr_type
&& !addr->index
- && !addr->step)
+ && !addr->step
+ && (!addr->base || POINTER_TYPE_P (TREE_TYPE (addr->base))))
{
tree base, offset;
gcc_assert (!addr->symbol ^ !addr->base);
Index: gcc/tree-cfg.c
===================================================================
--- gcc/tree-cfg.c (revision 161994)
+++ gcc/tree-cfg.c (working copy)
@@ -2610,7 +2679,8 @@ verify_expr (tree *tp, int *walk_subtree
case MEM_REF:
x = TREE_OPERAND (t, 0);
- if (!is_gimple_mem_ref_addr (x))
+ if (!POINTER_TYPE_P (TREE_TYPE (x))
+ || !is_gimple_mem_ref_addr (x))
{
error ("Invalid first operand of MEM_REF.");
return x;
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