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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-05-03 19:57:32 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-05-03 19:57:32 +0000 |
| commit | 45bb3afb87036bd243b1f096b9371e9785b0841c (patch) | |
| tree | c4e6b2079d241859aabc7e14a7760df92602eee4 /gcc/c-common.c | |
| parent | 9225ad443de481ff86104f12ce94de205d12b28d (diff) | |
| download | ppe42-gcc-45bb3afb87036bd243b1f096b9371e9785b0841c.tar.gz ppe42-gcc-45bb3afb87036bd243b1f096b9371e9785b0841c.zip | |
2009-05-03 Richard Guenther <rguenther@suse.de>
PR c/39983
* c-typeck.c (array_to_pointer_conversion): Do not built
ADDR_EXPRs of arrays of pointer-to-element type.
* c-gimplify.c (c_gimplify_expr): Revert change fixing
up wrong ADDR_EXPRs after-the-fact.
* c-common.c (strict_aliasing_warning): Strip pointer
conversions for obtaining the original type.
* builtins.c (fold_builtin_memset): Handle array types.
(fold_builtin_memory_op): Handle folded POINTER_PLUS_EXPRs
and array types
* gcc.c-torture/compile/pr39983.c: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@147083 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index d877c0f8469..ff8e83afdc1 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -1762,6 +1762,10 @@ warn_logical_operator (location_t location, enum tree_code code, bool strict_aliasing_warning (tree otype, tree type, tree expr) { + /* Strip pointer conversion chains and get to the correct original type. */ + STRIP_NOPS (expr); + otype = TREE_TYPE (expr); + if (!(flag_strict_aliasing && POINTER_TYPE_P (type) && POINTER_TYPE_P (otype) |
