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| author | J"orn Rennecke <joern.rennecke@st.com> | 2005-09-12 13:49:56 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2005-09-12 14:49:56 +0100 |
| commit | f439f9a536087071b4593eb0dda40eb5cc592c1c (patch) | |
| tree | 649fa30263261ba9370902d07bbae9c92afec4db /gcc/stor-layout.c | |
| parent | cd41bae5fde3f26c99c33511c08c523b55e295c8 (diff) | |
| download | gcc-f439f9a536087071b4593eb0dda40eb5cc592c1c.zip gcc-f439f9a536087071b4593eb0dda40eb5cc592c1c.tar.gz gcc-f439f9a536087071b4593eb0dda40eb5cc592c1c.tar.bz2 | |
re PR middle-end/23290 (Layout changed for structure with single complex field)
PR middle-end/23290
* stor-layout.c (compute_record_mode): For records with a single
field, actually check the field's mode size against the type size.
From-SVN: r104171
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index 0ec818d..31d8bec 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -1367,14 +1367,15 @@ compute_record_mode (tree type) #endif /* MEMBER_TYPE_FORCES_BLK */ } - TYPE_MODE (type) = mode_for_size_tree (TYPE_SIZE (type), MODE_INT, 1); - /* If we only have one real field; use its mode if that mode's size matches the type's size. This only applies to RECORD_TYPE. This does not apply to unions. */ if (TREE_CODE (type) == RECORD_TYPE && mode != VOIDmode - && GET_MODE_SIZE (mode) == GET_MODE_SIZE (TYPE_MODE (type))) + && host_integerp (TYPE_SIZE (type), 1) + && GET_MODE_BITSIZE (mode) == TREE_INT_CST_LOW (TYPE_SIZE (type))) TYPE_MODE (type) = mode; + else + TYPE_MODE (type) = mode_for_size_tree (TYPE_SIZE (type), MODE_INT, 1); /* If structure's known alignment is less than what the scalar mode would need, and it matters, then stick with BLKmode. */ |