The following fixes a checking ICE by choosing a more appropriate
type for an ADDR_EXPR built by forwprop.
PR tree-optimization/108791
* tree-ssa-forwprop.cc (optimize_vector_load): Build
the ADDR_EXPR of a TARGET_MEM_REF using a more meaningful
type.
* gcc.dg/torture/pr108791.c: New testcase.
(cherry picked from commit
441c466fd4d8b9afd99f585f7c4bfade911c4652)
--- /dev/null
+/* { dg-do compile } */
+
+int f (int *a(), int *b, int *c, int *d)
+{
+ int s = 0;
+ for (int *i = (int *)a; i < b; ++i, ++c)
+ s += *c * d[*i];
+ return s;
+}
{
if (TREE_CODE (TREE_OPERAND (load_rhs, 0)) == ADDR_EXPR)
mark_addressable (TREE_OPERAND (TREE_OPERAND (load_rhs, 0), 0));
- tree tem = make_ssa_name (TREE_TYPE (TREE_OPERAND (load_rhs, 0)));
+ tree ptrtype = build_pointer_type (TREE_TYPE (load_rhs));
+ tree tem = make_ssa_name (ptrtype);
gimple *new_stmt
= gimple_build_assign (tem, build1 (ADDR_EXPR, TREE_TYPE (tem),
unshare_expr (load_rhs)));