+2001-12-12 Richard Henderson <rth@redhat.com>
+
+ * emit-rtl.c (adjust_address_1): Always copy address to avoid
+ shared rtl.
+
Wed Dec 12 07:37:52 2001 Olivier Hainque <hainque@act-europe.fr>
* stmt.c (expand_end_case): Do subtraction of lower bound as trees
rtx size = 0;
unsigned int memalign = MEM_ALIGN (memref);
- if (adjust == 0 || offset == 0)
- /* ??? Prefer to create garbage instead of creating shared rtl. */
- addr = copy_rtx (addr);
+ /* ??? Prefer to create garbage instead of creating shared rtl.
+ This may happen even if adjust is non-zero -- consider
+ (plus (plus reg reg) const_int) -- so do this always. */
+ addr = copy_rtx (addr);
+
/* If MEMREF is a LO_SUM and the offset is within the alignment of the
object, we can merge it into the LO_SUM. */
- else if (GET_MODE (memref) != BLKmode && GET_CODE (addr) == LO_SUM
- && offset >= 0
- && (unsigned HOST_WIDE_INT) offset
- < GET_MODE_ALIGNMENT (GET_MODE (memref)) / BITS_PER_UNIT)
+ if (GET_MODE (memref) != BLKmode && GET_CODE (addr) == LO_SUM
+ && offset >= 0
+ && (unsigned HOST_WIDE_INT) offset
+ < GET_MODE_ALIGNMENT (GET_MODE (memref)) / BITS_PER_UNIT)
addr = gen_rtx_LO_SUM (Pmode, XEXP (addr, 0),
plus_constant (XEXP (addr, 1), offset));
else