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33 lines
1004 B
C
33 lines
1004 B
C
$NetBSD$
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--- gcc/recog.c.orig Fri Apr 2 19:54:46 2010
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+++ gcc/recog.c
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@@ -2991,6 +2991,7 @@ peep2_find_free_register (int from, int to, const char
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static int search_ofs;
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enum reg_class cl;
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HARD_REG_SET live;
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+ df_ref *def_rec;
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int i;
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gcc_assert (from < MAX_INSNS_PER_PEEP2 + 1);
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@@ -3008,13 +3009,15 @@ peep2_find_free_register (int from, int to, const char
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while (from != to)
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{
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- HARD_REG_SET this_live;
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+ gcc_assert (peep2_insn_data[from].insn != NULL_RTX);
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+ /* Don't use registers set or clobbered by the insn. */
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+ for (def_rec = DF_INSN_DEFS (peep2_insn_data[from].insn);
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+ *def_rec; def_rec++)
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+ SET_HARD_REG_BIT (live, DF_REF_REGNO (*def_rec));
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+
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if (++from >= MAX_INSNS_PER_PEEP2 + 1)
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from = 0;
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- gcc_assert (peep2_insn_data[from].insn != NULL_RTX);
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- REG_SET_TO_HARD_REG_SET (this_live, peep2_insn_data[from].live_before);
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- IOR_HARD_REG_SET (live, this_live);
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}
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cl = (class_str[0] == 'r' ? GENERAL_REGS
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