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| author | Richard Biener <rguenther@suse.de> | 2017-04-12 13:47:26 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-04-12 13:47:26 +0000 |
| commit | 940c9a7c2cf3bbbf43b0602c9283bf7579cf05ec (patch) | |
| tree | 3e96366740f1544c7be9d1ba28787488e0e7ef08 /gcc/tree-ssa-dse.c | |
| parent | 7f7e9dae36c8dd57ab89dae47a87903bbfefb530 (diff) | |
re PR tree-optimization/80359 (DSE causes error: invalid reference prefix)
2017-04-12 Richard Biener <rguenther@suse.de>
Jeff Law <law@redhat.com>
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 <law@redhat.com>
From-SVN: r246875
Diffstat (limited to 'gcc/tree-ssa-dse.c')
| -rw-r--r-- | gcc/tree-ssa-dse.c | 3 |
1 files changed, 2 insertions, 1 deletions
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)) { |