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| author | David Edelsohn <dje.gcc@gmail.com> | 2013-11-23 15:25:09 +0000 |
|---|---|---|
| committer | David Edelsohn <dje@gcc.gnu.org> | 2013-11-23 10:25:09 -0500 |
| commit | cf77a180162e674e73b0aa3c2c230e5aa579d990 (patch) | |
| tree | 7960d588b944080f70835a25d7609a7a8ac80e19 /gcc | |
| parent | e07ded7bf92a813f96e6932cca384a83a089f720 (diff) | |
| download | gcc-cf77a180162e674e73b0aa3c2c230e5aa579d990.zip gcc-cf77a180162e674e73b0aa3c2c230e5aa579d990.tar.gz gcc-cf77a180162e674e73b0aa3c2c230e5aa579d990.tar.bz2 | |
rs6000.c (IN_NAMED_SECTION): New macro.
* config/rs6000/rs6000.c (IN_NAMED_SECTION): New macro.
(rs6000_xcoff_select_section): Place decls with stricter alignment
into named sections.
(rs6000_xcoff_unique_section): Allow unique sections for
uninitialized data with strict alignment.
From-SVN: r205308
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 21 |
2 files changed, 26 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d1f7f6e..c4f56ba 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2013-11-23 David Edelsohn <dje.gcc@gmail.com> + + * config/rs6000/rs6000.c (IN_NAMED_SECTION): New macro. + (rs6000_xcoff_select_section): Place decls with stricter alignment + into named sections. + (rs6000_xcoff_unique_section): Allow unique sections for + uninitialized data with strict alignment. + 2013-11-23 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/59154 diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 98f771b..7ada5d2 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -28588,10 +28588,23 @@ rs6000_xcoff_asm_named_section (const char *name, unsigned int flags, name, suffix[smclass], flags & SECTION_ENTSIZE); } +#define IN_NAMED_SECTION(DECL) \ + ((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL) \ + && DECL_SECTION_NAME (DECL) != NULL_TREE) + static section * rs6000_xcoff_select_section (tree decl, int reloc, - unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) + unsigned HOST_WIDE_INT align) { + /* Place variables with alignment stricter than BIGGEST_ALIGNMENT into + named section. */ + if (align > BIGGEST_ALIGNMENT) + { + resolve_unique_section (decl, reloc, true); + if (IN_NAMED_SECTION (decl)) + return get_named_section (decl, NULL, reloc); + } + if (decl_readonly_section (decl, reloc)) { if (TREE_PUBLIC (decl)) @@ -28629,10 +28642,12 @@ rs6000_xcoff_unique_section (tree decl, int reloc ATTRIBUTE_UNUSED) { const char *name; - /* Use select_section for private and uninitialized data. */ + /* Use select_section for private data and uninitialized data with + alignment <= BIGGEST_ALIGNMENT. */ if (!TREE_PUBLIC (decl) || DECL_COMMON (decl) - || DECL_INITIAL (decl) == NULL_TREE + || (DECL_INITIAL (decl) == NULL_TREE + && DECL_ALIGN (decl) <= BIGGEST_ALIGNMENT) || DECL_INITIAL (decl) == error_mark_node || (flag_zero_initialized_in_bss && initializer_zerop (DECL_INITIAL (decl)))) |