re PR target/27858 (ICE in spill_failure, at reload1.c:1911while bootstrapping 4.2 on alpha)
PR target/27858 Revert incorrect fix for PR target/27158 2006-05-08 Roger Sayle <roger@eyesopen.com> * reload.c (find_reloads_toplev): Only return the simplified SUBREG of a reg_equiv_constant if the result is a legitimate constant. From-SVN: r114559
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@ -1,3 +1,11 @@
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2006-06-11 Roger Sayle <roger@eyesopen.com>
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PR target/27858
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Revert incorrect fix for PR target/27158
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2006-05-08 Roger Sayle <roger@eyesopen.com>
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* reload.c (find_reloads_toplev): Only return the simplified SUBREG
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of a reg_equiv_constant if the result is a legitimate constant.
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2006-06-11 Roger Sayle <roger@eyesopen.com>
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2006-06-11 Roger Sayle <roger@eyesopen.com>
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PR target/27158
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PR target/27158
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@ -4572,8 +4572,7 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type,
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&& reg_renumber[regno] < 0
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&& reg_renumber[regno] < 0
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&& reg_equiv_constant[regno] != 0
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&& reg_equiv_constant[regno] != 0
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&& (tem = gen_lowpart_common (GET_MODE (x),
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&& (tem = gen_lowpart_common (GET_MODE (x),
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reg_equiv_constant[regno])) != 0
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reg_equiv_constant[regno])) != 0)
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&& LEGITIMATE_CONSTANT_P (tem))
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return tem;
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return tem;
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if (regno >= FIRST_PSEUDO_REGISTER
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if (regno >= FIRST_PSEUDO_REGISTER
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@ -4584,8 +4583,7 @@ find_reloads_toplev (rtx x, int opnum, enum reload_type type,
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simplify_gen_subreg (GET_MODE (x), reg_equiv_constant[regno],
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simplify_gen_subreg (GET_MODE (x), reg_equiv_constant[regno],
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GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x));
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GET_MODE (SUBREG_REG (x)), SUBREG_BYTE (x));
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gcc_assert (tem);
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gcc_assert (tem);
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if (LEGITIMATE_CONSTANT_P (tem))
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return tem;
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return tem;
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}
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}
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/* If the subreg contains a reg that will be converted to a mem,
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/* If the subreg contains a reg that will be converted to a mem,
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