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| author | Jakub Jelinek <jakub@redhat.com> | 2011-06-27 18:52:23 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-06-27 18:52:23 +0200 |
| commit | 45d439ac1a9e2df33ac7ef573009749dbebf581b (patch) | |
| tree | efa39246412ef14d5214fe10b53a962abeab3d20 /gcc/tree-ssa-alias.c | |
| parent | dc2a58daabf95cfac0dd346ff717902bdc6e3d93 (diff) | |
| download | gcc-45d439ac1a9e2df33ac7ef573009749dbebf581b.zip gcc-45d439ac1a9e2df33ac7ef573009749dbebf581b.tar.gz gcc-45d439ac1a9e2df33ac7ef573009749dbebf581b.tar.bz2 | |
builtin-types.def (BT_FN_PTR_CONST_PTR_SIZE_VAR): New.
* builtin-types.def (BT_FN_PTR_CONST_PTR_SIZE_VAR): New.
* builtins.def (BUILT_IN_ASSUME_ALIGNED): New builtin.
* tree-ssa-structalias.c (find_func_aliases_for_builtin_call,
find_func_clobbers): Handle BUILT_IN_ASSUME_ALIGNED.
* tree-ssa-ccp.c (bit_value_assume_aligned): New function.
(evaluate_stmt, execute_fold_all_builtins): Handle
BUILT_IN_ASSUME_ALIGNED.
* tree-ssa-dce.c (propagate_necessity): Likewise.
* tree-ssa-alias.c (ref_maybe_used_by_call_p_1,
call_may_clobber_ref_p_1): Likewise.
* builtins.c (is_simple_builtin, expand_builtin): Likewise.
(expand_builtin_assume_aligned): New function.
* doc/extend.texi (__builtin_assume_aligned): Document.
* c-common.c (check_builtin_function_arguments): Handle
BUILT_IN_ASSUME_ALIGNED.
* gcc.dg/builtin-assume-aligned-1.c: New test.
* gcc.dg/builtin-assume-aligned-2.c: New test.
* gcc.target/i386/builtin-assume-aligned-1.c: New test.
From-SVN: r175541
Diffstat (limited to 'gcc/tree-ssa-alias.c')
| -rw-r--r-- | gcc/tree-ssa-alias.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree-ssa-alias.c b/gcc/tree-ssa-alias.c index 5647899..bac1181 100644 --- a/gcc/tree-ssa-alias.c +++ b/gcc/tree-ssa-alias.c @@ -1253,6 +1253,7 @@ ref_maybe_used_by_call_p_1 (gimple call, ao_ref *ref) case BUILT_IN_SINCOS: case BUILT_IN_SINCOSF: case BUILT_IN_SINCOSL: + case BUILT_IN_ASSUME_ALIGNED: return false; /* __sync_* builtins and some OpenMP builtins act as threading barriers. */ @@ -1511,6 +1512,7 @@ call_may_clobber_ref_p_1 (gimple call, ao_ref *ref) return false; case BUILT_IN_STACK_SAVE: case BUILT_IN_ALLOCA: + case BUILT_IN_ASSUME_ALIGNED: return false; /* Freeing memory kills the pointed-to memory. More importantly the call has to serve as a barrier for moving loads and stores |