[PATCH] tree-optimization/94266 - aovid propagating addresses of TARGET_MEM_REFs

[Richard Biener]

Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.

Richard.

2020-03-23  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/94266
        * tree-ssa-forwprop.c (pass_forwprop::execute): Do not propagate
        addresses of TARGET_MEM_REFs.
---
 gcc/tree-ssa-forwprop.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/tree-ssa-forwprop.c b/gcc/tree-ssa-forwprop.c
index 61b4eec271b..234c1f7dd7d 100644
--- a/gcc/tree-ssa-forwprop.c
+++ b/gcc/tree-ssa-forwprop.c
@@ -2712,6 +2712,7 @@ pass_forwprop::execute (function *fun)
              if ((!base
                   || !DECL_P (base)
                   || decl_address_invariant_p (base))
+                 && TREE_CODE (base) != TARGET_MEM_REF
                  && !stmt_references_abnormal_ssa_name (stmt)
                  && forward_propagate_addr_expr (lhs, rhs, true))
                {
-- 
2.16.4