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| author | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-15 10:25:15 +0000 |
|---|---|---|
| committer | aoliva <aoliva@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-12-15 10:25:15 +0000 |
| commit | 6d1013f72266327f95bee6686a1c6da2a12ff675 (patch) | |
| tree | 020f9b5c8e9194f2a72826f846f18ab34c661b39 /gcc/tree-mudflap.c | |
| parent | 4bb918e02ce0785b3fbdca6277d732bc5e072470 (diff) | |
| download | gcc-6d1013f72266327f95bee6686a1c6da2a12ff675.tar.gz | |
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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194519 138bc75d-0d04-0410-961f-82ee72b054a4
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 9b9c549a19b..90d04489188 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, |