diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/expr.c | 12 |
2 files changed, 16 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3c0175c..88d54ea 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Fri Mar 3 14:56:12 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu> + + * expr.c (expand_expr, case COMPONENT_REF): Use bitfield case if + result is a RECORD_TYPE. + 2000-03-03 Jonathan Larmour <jlarmour@cygnus.co.uk> * config/mips/elf.h (CTOR_LISTS_DEFINED_EXTERNALLY): Added. @@ -6756,7 +6756,17 @@ expand_expr (exp, target, tmode, modifier) && SLOW_UNALIGNED_ACCESS (mode1, alignment) && ((TYPE_ALIGN (TREE_TYPE (tem)) < (unsigned int) GET_MODE_ALIGNMENT (mode)) - || (bitpos % GET_MODE_ALIGNMENT (mode) != 0))))) + || (bitpos % GET_MODE_ALIGNMENT (mode) != 0))) + /* If the type and the field are a constant size and the + size of the type isn't the same size as the bitfield, + we must use bitfield operations. */ + || ((bitsize >= 0 + && (TREE_CODE (TYPE_SIZE (TREE_TYPE (exp))) + == INTEGER_CST) + && ((TREE_INT_CST_HIGH (TYPE_SIZE (TREE_TYPE (exp))) + != 0) + || (TREE_INT_CST_LOW (TYPE_SIZE (TREE_TYPE (exp))) + != bitsize)))))) || (modifier != EXPAND_CONST_ADDRESS && modifier != EXPAND_INITIALIZER && mode == BLKmode |