diff options
| author | H.J. Lu <hongjiu.lu@intel.com> | 2009-01-18 16:26:26 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2009-01-18 08:26:26 -0800 |
| commit | 6e4f11689b8ac84b5f3eb618e88b0b3a9cc74008 (patch) | |
| tree | d74a458bc64925e0158a42b28d1bdf62ea7614fb /gcc/c-cppbuiltin.c | |
| parent | 890065bfe4a9d3367568a2f5a9a12b6289f377d0 (diff) | |
| download | gcc-6e4f11689b8ac84b5f3eb618e88b0b3a9cc74008.zip gcc-6e4f11689b8ac84b5f3eb618e88b0b3a9cc74008.tar.gz gcc-6e4f11689b8ac84b5f3eb618e88b0b3a9cc74008.tar.bz2 | |
re PR target/38736 (-mavx can change the ABI via BIGGEST_ALIGNMENT)
gcc/
2009-01-18 H.J. Lu <hongjiu.lu@intel.com>
PR target/38736
* c-common.c (handle_aligned_attribute): Use
ATTRIBUTE_ALIGNED_VALUE instead of BIGGEST_ALIGNMENT for
default alignment value.
* c-cppbuiltin.c (c_cpp_builtins): Define __BIGGEST_ALIGNMENT__.
* defaults.h (ATTRIBUTE_ALIGNED_VALUE): New.
* config/i386/i386.h (ATTRIBUTE_ALIGNED_VALUE): Likewise.
* doc/extend.texi: Update __attribute__ ((aligned)). Document
__BIGGEST_ALIGNMENT__.
* doc/tm.texi: Document ATTRIBUTE_ALIGNED_VALUE.
gcc/testsuite/
2009-01-18 H.J. Lu <hongjiu.lu@intel.com>
PR target/38736
* g++.dg/compat/abi/pr38736_main.C: New.
* g++.dg/compat/abi/pr38736_x.C: Likewise.
* g++.dg/compat/abi/pr38736_y.C: Likewise.
* g++.dg/other/macro-1.C: Likewise.
* gcc.dg/macro-1.c: Likewise.
* gcc.dg/compat/pr38736_main.c: Likewise.
* gcc.dg/compat/pr38736_x.c: Likewise.
* gcc.dg/compat/pr38736_y.c: Likewise.
From-SVN: r143486
Diffstat (limited to 'gcc/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-cppbuiltin.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c index 58b1796..c6112d8 100644 --- a/gcc/c-cppbuiltin.c +++ b/gcc/c-cppbuiltin.c @@ -762,6 +762,9 @@ c_cpp_builtins (cpp_reader *pfile) format. */ if (ENABLE_DECIMAL_FLOAT && ENABLE_DECIMAL_BID_FORMAT) cpp_define (pfile, "__DECIMAL_BID_FORMAT__"); + + builtin_define_with_int_value ("__BIGGEST_ALIGNMENT__", + BIGGEST_ALIGNMENT / BITS_PER_UNIT); } /* Pass an object-like macro. If it doesn't lie in the user's |