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File pr42429.diff of Package gcc43
2009-12-21 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/42429 * reload.c (find_reloads_subreg_address): When adjusting mode of MEM, update also MEM_SIZE if it is set. Index: gcc/reload.c =================================================================== --- gcc/reload.c (revision 155374) +++ gcc/reload.c (revision 155375) @@ -6096,6 +6096,9 @@ find_reloads_subreg_address (rtx x, int PUT_MODE (tem, GET_MODE (x)); if (MEM_OFFSET (tem)) set_mem_offset (tem, plus_constant (MEM_OFFSET (tem), offset)); + if (MEM_SIZE (tem) + && INTVAL (MEM_SIZE (tem)) != (HOST_WIDE_INT) outer_size) + set_mem_size (tem, GEN_INT (outer_size)); /* If this was a paradoxical subreg that we replaced, the resulting memory must be sufficiently aligned to allow
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