emit-rtl.c (adjust_address_1): Don't adjust address if adjust is false.
* emit-rtl.c (adjust_address_1): Don't adjust address if adjust is false. From-SVN: r47978
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@ -1,3 +1,8 @@
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2001-12-13 Richard Henderson <rth@redhat.com>
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* emit-rtl.c (adjust_address_1): Don't adjust address if adjust
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is false.
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2001-12-13 Richard Earnshaw <rearnsha@arm.com>
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* collect2.c (COLLECT_SHARED_INIT_FUNC)
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@ -1967,20 +1967,23 @@ adjust_address_1 (memref, mode, offset, validate, adjust)
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unsigned int memalign = MEM_ALIGN (memref);
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/* ??? Prefer to create garbage instead of creating shared rtl.
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This may happen even if adjust is non-zero -- consider
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This may happen even if offset is non-zero -- consider
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(plus (plus reg reg) const_int) -- so do this always. */
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addr = copy_rtx (addr);
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/* If MEMREF is a LO_SUM and the offset is within the alignment of the
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object, we can merge it into the LO_SUM. */
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if (GET_MODE (memref) != BLKmode && GET_CODE (addr) == LO_SUM
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&& offset >= 0
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&& (unsigned HOST_WIDE_INT) offset
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< GET_MODE_ALIGNMENT (GET_MODE (memref)) / BITS_PER_UNIT)
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addr = gen_rtx_LO_SUM (Pmode, XEXP (addr, 0),
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plus_constant (XEXP (addr, 1), offset));
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else
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addr = plus_constant (addr, offset);
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if (adjust)
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{
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/* If MEMREF is a LO_SUM and the offset is within the alignment of the
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object, we can merge it into the LO_SUM. */
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if (GET_MODE (memref) != BLKmode && GET_CODE (addr) == LO_SUM
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&& offset >= 0
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&& (unsigned HOST_WIDE_INT) offset
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< GET_MODE_ALIGNMENT (GET_MODE (memref)) / BITS_PER_UNIT)
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addr = gen_rtx_LO_SUM (Pmode, XEXP (addr, 0),
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plus_constant (XEXP (addr, 1), offset));
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else
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addr = plus_constant (addr, offset);
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}
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new = change_address_1 (memref, mode, addr, validate);
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