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| author | Alexandre Oliva <aoliva@redhat.com> | 2012-12-15 10:25:15 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2012-12-15 10:25:15 +0000 |
| commit | e88ebf869e234bca2535b43fd80ab744e65a3560 (patch) | |
| tree | 020f9b5c8e9194f2a72826f846f18ab34c661b39 /gcc/tree-mudflap.c | |
| parent | 5a6fe81088b9a7e5242897892239b745d9273cf9 (diff) | |
| download | gcc-e88ebf869e234bca2535b43fd80ab744e65a3560.zip gcc-e88ebf869e234bca2535b43fd80ab744e65a3560.tar.gz gcc-e88ebf869e234bca2535b43fd80ab744e65a3560.tar.bz2 | |
re PR libmudflap/53952 (FAIL: libmudflap.c++/pass55-frag.cxx ( -O[123]) execution test)
PR libmudflap/53952
* expr.c (mem_ref_refers_to_non_mem_p): Factor out
implementation into...
(addr_expr_of_non_mem_decl_p_1): ... this new function.
(addr_expr_of_non_mem_decl_p): New.
* tree.h (addr_expr_of_non_mem_decl_p): Declare.
* tree-mudflap.c (mf_xform_derefs_1): Don't change MEM_REFs
and TARGET_MEM_REFs that have an ADDR_EXPR of a non-mem DECL
as base operand.
From-SVN: r194519
Diffstat (limited to 'gcc/tree-mudflap.c')
| -rw-r--r-- | gcc/tree-mudflap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/tree-mudflap.c b/gcc/tree-mudflap.c index 9b9c549..90d0448 100644 --- a/gcc/tree-mudflap.c +++ b/gcc/tree-mudflap.c @@ -877,6 +877,9 @@ mf_xform_derefs_1 (gimple_stmt_iterator *iter, tree *tp, break; case MEM_REF: + if (addr_expr_of_non_mem_decl_p (TREE_OPERAND (t, 0))) + return; + addr = fold_build_pointer_plus_loc (location, TREE_OPERAND (t, 0), TREE_OPERAND (t, 1)); base = addr; @@ -886,6 +889,9 @@ mf_xform_derefs_1 (gimple_stmt_iterator *iter, tree *tp, break; case TARGET_MEM_REF: + if (addr_expr_of_non_mem_decl_p (TMR_BASE (t))) + return; + addr = tree_mem_ref_addr (ptr_type_node, t); base = addr; limit = fold_build_pointer_plus_hwi_loc (location, |