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authorRichard Kenner <kenner@vlsi1.ultra.nyu.edu>2000-05-04 13:49:50 +0000
committerRichard Kenner <kenner@gcc.gnu.org>2000-05-04 09:49:50 -0400
commitbf49b1396b843c126db4f8e97326f0138ff9a2d3 (patch)
treeecad7aa7b8512c49c56eb75cc4f3a6297327ec20 /gcc/final.c
parent5b8714bfa9c437674e8881def75401fe069d964d (diff)
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rtl.h (MEM_COPY_ATTRIBUTES): Also copy RTX_UNCHANGING_P and MEM_ALIAS_SET.
* rtl.h (MEM_COPY_ATTRIBUTES): Also copy RTX_UNCHANGING_P and MEM_ALIAS_SET. * alias.c (canon_rtx): Don't copy RTX_UNCHANGING_P or MEM_ALIAS_SET when calling MEM_COPY_ATTRIBUTES. * emit-rtl.c (operand_subword, change_address): Likewise. * explow.c (stabilize): Likewise. * expr.c (protect_from_queue, emit_move_insn_1): Likewise. * integrate.c (copy_rtx_and_substitute): Likewise. * combine.c (combine_simplify_rtx): Don't copy RTX_UNCHANGING_P when calling MEM_COPY_ATTRIBUTES. (make_extraction, simplify_shift_const, gen_lowpart_for_combine): Likewise. * cse.c (gen_lowpart_if_possible): Likewise. * function.c (fixup_var_refs_1, purge_addressof_1): Likewise. * optabs.c (gen_move_insn): Likewise. * recog.c (validate_replace_rtx_1): Likewise. * simplify-rtx.c (add_mem_for_addr): Likewise. * stmt.c (expand_anon_union_decl): Likewise. * config/arm/arm.md: Likewise. * config/h8300/h7300.c (fix_bit_operand): Likewise. * config/m88k/m88k.c (legitimize_address, block_move_loop): Likewise. (block_move_no_loop, block_move_sequence): Likewise. * config/rs6000/rs6000.c (expand_block_move_mem): Likewise. * config/alpha/alpha.c (get_aligned_mem): Likewise. Clear MEM_ALIAS_SET. * final.c (alter_subreg): Don't copy MEM_ALIAS_SET when calling MEM_COPY_ATTRIBUTES. From-SVN: r33665
Diffstat (limited to 'gcc/final.c')
-rw-r--r--gcc/final.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/final.c b/gcc/final.c
index 28c6c0a..dc9334f 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -3110,12 +3110,12 @@ alter_subreg (x)
else if (GET_CODE (y) == MEM)
{
register int offset = SUBREG_WORD (x) * UNITS_PER_WORD;
+
if (BYTES_BIG_ENDIAN)
offset -= (MIN (UNITS_PER_WORD, GET_MODE_SIZE (GET_MODE (x)))
- MIN (UNITS_PER_WORD, GET_MODE_SIZE (GET_MODE (y))));
PUT_CODE (x, MEM);
MEM_COPY_ATTRIBUTES (x, y);
- MEM_ALIAS_SET (x) = MEM_ALIAS_SET (y);
XEXP (x, 0) = plus_constant (XEXP (y, 0), offset);
}