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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-03-08 13:19:40 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-03-08 13:19:40 +0000 |
| commit | 26d1c5fff7f1a1e7c6430d667eb0ad19b329b5e0 (patch) | |
| tree | cdc25a73277e939285d67c67cd208d1cd34a0bc2 /gcc/calls.c | |
| parent | c384605c898eb1534d21789b541a9f091a60070e (diff) | |
| download | gcc-26d1c5fff7f1a1e7c6430d667eb0ad19b329b5e0.tar.gz | |
PR c/14411
* calls.c (flags_from_decl_or_type): Handle eturns_twice' attribute.
* c-common.c (handle_returns_twice): New function.
(c_common_attribute_table): Declare eturns_twice' attribute.
* doc/extend.texi: Document eturns_twice' attribute.
* tree.h (DECL_IS_RETURNS_TWICE): New macro.
(struct tree_decl): Add returns_twice_flag.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@96101 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index f90e1a56ec4..d6032fc78bc 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -585,6 +585,10 @@ flags_from_decl_or_type (tree exp) if (DECL_IS_MALLOC (exp)) flags |= ECF_MALLOC; + /* The function exp may have the `returns_twice' attribute. */ + if (DECL_IS_RETURNS_TWICE (exp)) + flags |= ECF_RETURNS_TWICE; + /* The function exp may have the `pure' attribute. */ if (DECL_IS_PURE (exp)) flags |= ECF_PURE | ECF_LIBCALL_BLOCK; |