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| author | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2003-07-13 17:12:28 +0000 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 2003-07-13 13:12:28 -0400 |
| commit | 0acf4f8857224501ab8bd97bf0146f7cb766441e (patch) | |
| tree | ab64df6753f797969f539df8f1f5ffaeb9644feb | |
| parent | ae26c8e25f9bad8b4d26f10d091d6342330f3cfb (diff) | |
| download | gcc-0acf4f8857224501ab8bd97bf0146f7cb766441e.zip gcc-0acf4f8857224501ab8bd97bf0146f7cb766441e.tar.gz gcc-0acf4f8857224501ab8bd97bf0146f7cb766441e.tar.bz2 | |
stor-layout.c (compute_record_mode): Remove very obsolete test that forces BLKmode for records with fields crossing...
* stor-layout.c (compute_record_mode): Remove very obsolete test
that forces BLKmode for records with fields crossing word boundary.
From-SVN: r69297
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/stor-layout.c | 15 |
2 files changed, 5 insertions, 15 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5a76780..c9cda02 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2003-07-13 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * stor-layout.c (compute_record_mode): Remove very obsolete test + that forces BLKmode for records with fields crossing word boundary. + 2003-07-13 Zack Weinberg <zack@codesourcery.com> * Makefile.in: Remove orphan reference to acconfig.h. diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index 403f8ab..061eec4 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -1310,8 +1310,6 @@ compute_record_mode (tree type) BLKmode only because it isn't aligned. */ for (field = TYPE_FIELDS (type); field; field = TREE_CHAIN (field)) { - unsigned HOST_WIDE_INT bitpos; - if (TREE_CODE (field) != FIELD_DECL) continue; @@ -1323,19 +1321,6 @@ compute_record_mode (tree type) || ! host_integerp (DECL_SIZE (field), 1)) return; - bitpos = int_bit_position (field); - - /* Must be BLKmode if any field crosses a word boundary, - since extract_bit_field can't handle that in registers. */ - if (bitpos / BITS_PER_WORD - != ((tree_low_cst (DECL_SIZE (field), 1) + bitpos - 1) - / BITS_PER_WORD) - /* But there is no problem if the field is entire words - or bigger than a word. */ - && ! (tree_low_cst (DECL_SIZE (field), 1) % BITS_PER_WORD == 0 - || compare_tree_int (DECL_SIZE (field), BITS_PER_WORD) > 0)) - return; - /* If this field is the whole struct, remember its mode so that, say, we can put a double in a class into a DF register instead of forcing it to live in the stack. */ |