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| author | Ben Elliston <bje@au.ibm.com> | 2008-07-14 05:09:48 +0000 |
|---|---|---|
| committer | Ben Elliston <bje@gcc.gnu.org> | 2008-07-14 15:09:48 +1000 |
| commit | 5950c3c9a7729687a04f9b008e441959a2d9114d (patch) | |
| tree | 5549f4ccea5a3b85211df500d0617fd3866b139f /gcc/doc | |
| parent | b463e8de6c7e9c7fe8ad2f4f4be126f58b23c07a (diff) | |
| download | gcc-5950c3c9a7729687a04f9b008e441959a2d9114d.zip gcc-5950c3c9a7729687a04f9b008e441959a2d9114d.tar.gz gcc-5950c3c9a7729687a04f9b008e441959a2d9114d.tar.bz2 | |
cpplib.h (NODE_CONDITIONAL): New.
libcpp/
* include/cpplib.h (NODE_CONDITIONAL): New.
(struct cpp_callbacks): New macro_to_expand field.
(struct cpp_hashnode): Adjust size of flags and type fields.
(cpp_peek_token): Prototype.
* lex.c (cpp_peek_token): New function.
(_cpp_temp_token): Protect pre-existing lookaheads.
* macro.c (cpp_get_token): Expand any conditional macros.
(_cpp_backup_tokens_direct): New.
(_cpp_backup_tokens): Call _cpp_backup_tokens_direct.
(warn_of_redefinition): Silently allow redefined conditional
macros.
(_cpp_create_definition): Remove the conditional flag when a user
defines one of the conditional macros.
* internal.h (_cpp_backup_tokens_direct): New prototype.
gcc/
* c-common.h (C_CPP_HASHNODE): New macro.
* coretypes.h (struct cpp_token): Forward declare.
* doc/extend.texi (PowerPC AltiVec Built-in Functions): Document
the context-sensitive keyword method.
* config/rs6000/rs6000-c.c (__vector_keyword, vector_keyword,
__pixel_keyword, pixel_keyword, __bool_keyword, bool_keyword,
expand_bool_pixel): New.
(altivec_categorize_keyword): New function.
(init_vector_keywords): New function.
(rs6000_macro_to_expand): Likewise.
(rs6000_cpu_cpp_builtins): Enable context-sensitive macros if not
compiling an ISO C dialect.
gcc/testsuite/
* gcc.target/powerpc/altivec-macros.c: New test.
* gcc.target/powerpc/altviec-26.c: Likewise.
* gcc.dg/vmx/1b-06.c: Remove bool variable.
* gcc.dg/vmx/1b-07.c: Likewise.
* gcc.dg/vmx/1b-06-ansi.c: New test for the pre-define method.
* gcc.dg/vmx/1b-07-ansi.c: Likewise.
From-SVN: r137775
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/extend.texi | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 56e8926..eecb4ca 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -9120,9 +9120,10 @@ always specify the signedness. @item Compiling with @option{-maltivec} adds keywords @code{__vector}, -@code{__pixel}, and @code{__bool}. Macros @option{vector}, -@code{pixel}, and @code{bool} are defined in @code{<altivec.h>} and can -be undefined. +@code{vector}, @code{__pixel}, @code{pixel}, @code{__bool} and +@code{bool}. When compiling ISO C, the context-sensitive substitution +of the keywords @code{vector}, @code{pixel} and @code{bool} is +disabled. To use them, you must include @code{<altivec.h>} instead. @item GCC allows using a @code{typedef} name as the type specifier for a |