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| author | Jakub Jelinek <jakub@redhat.com> | 2017-11-29 11:33:06 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2017-11-29 11:33:06 +0100 |
| commit | 65d5e454e5944531df80d0a9b5dcf2344c146fb8 (patch) | |
| tree | 12c33166e506675dec27298801f05e723e4ccaed /gcc/tree.c | |
| parent | cedd8ca58336b0c5b061b3c03c0a646fe08b616c (diff) | |
| download | gcc-65d5e454e5944531df80d0a9b5dcf2344c146fb8.zip gcc-65d5e454e5944531df80d0a9b5dcf2344c146fb8.tar.gz gcc-65d5e454e5944531df80d0a9b5dcf2344c146fb8.tar.bz2 | |
re PR middle-end/83185 (ICE with -fsanitize=address in build_simple_mem_ref_loc, at tree.c:4696)
PR middle-end/83185
* tree.c (build_simple_mem_ref_loc): Handle
get_addr_base_and_unit_offset returning a MEM_REF.
* gcc.dg/asan/pr83185.c: New test.
From-SVN: r255229
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -4692,7 +4692,13 @@ build_simple_mem_ref_loc (location_t loc, tree ptr) { ptr = get_addr_base_and_unit_offset (TREE_OPERAND (ptr, 0), &offset); gcc_assert (ptr); - ptr = build_fold_addr_expr (ptr); + if (TREE_CODE (ptr) == MEM_REF) + { + offset += mem_ref_offset (ptr).to_short_addr (); + ptr = TREE_OPERAND (ptr, 0); + } + else + ptr = build_fold_addr_expr (ptr); gcc_assert (is_gimple_reg (ptr) || is_gimple_min_invariant (ptr)); } tem = build2 (MEM_REF, TREE_TYPE (ptype), |