From 940c9a7c2cf3bbbf43b0602c9283bf7579cf05ec Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Wed, 12 Apr 2017 13:47:26 +0000 Subject: re PR tree-optimization/80359 (DSE causes error: invalid reference prefix) 2017-04-12 Richard Biener Jeff Law PR tree-optimization/80359 * tree-ssa-dse.c (maybe_trim_partially_dead_store): Do not trim stores to TARGET_MEM_REFs. * gcc.dg/torture/pr80359.c: New testcase. Co-Authored-By: Jeff Law From-SVN: r246875 --- gcc/tree-ssa-dse.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'gcc/tree-ssa-dse.c') diff --git a/gcc/tree-ssa-dse.c b/gcc/tree-ssa-dse.c index 53feaf3f4f7..90230abe822 100644 --- a/gcc/tree-ssa-dse.c +++ b/gcc/tree-ssa-dse.c @@ -451,7 +451,8 @@ maybe_trim_memstar_call (ao_ref *ref, sbitmap live, gimple *stmt) static void maybe_trim_partially_dead_store (ao_ref *ref, sbitmap live, gimple *stmt) { - if (is_gimple_assign (stmt)) + if (is_gimple_assign (stmt) + && TREE_CODE (gimple_assign_lhs (stmt)) != TARGET_MEM_REF) { switch (gimple_assign_rhs_code (stmt)) { -- cgit v1.2.3