31 lines
1009 B
Diff
31 lines
1009 B
Diff
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for gcc/ChangeLog
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from Alexandre Oliva <aoliva@redhat.com>
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PR debug/41276
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* cselib.c (cselib_expand_value_rtx_1): Don't return copy of
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invalid subreg.
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Index: gcc/cselib.c
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===================================================================
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--- gcc/cselib.c.orig 2009-08-14 08:00:12.000000000 -0300
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+++ gcc/cselib.c 2009-09-07 19:17:35.000000000 -0300
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@@ -1165,12 +1165,12 @@ cselib_expand_value_rtx_1 (rtx orig, str
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scopy = simplify_gen_subreg (GET_MODE (orig), subreg,
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GET_MODE (SUBREG_REG (orig)),
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SUBREG_BYTE (orig));
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- if (scopy == NULL
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- || (GET_CODE (scopy) == SUBREG
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- && !REG_P (SUBREG_REG (scopy))
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- && !MEM_P (SUBREG_REG (scopy))
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- && (REG_P (SUBREG_REG (orig))
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- || MEM_P (SUBREG_REG (orig)))))
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+ if ((scopy == NULL
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+ || (GET_CODE (scopy) == SUBREG
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+ && !REG_P (SUBREG_REG (scopy))
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+ && !MEM_P (SUBREG_REG (scopy))))
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+ && (REG_P (SUBREG_REG (orig))
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+ || MEM_P (SUBREG_REG (orig))))
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return shallow_copy_rtx (orig);
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return scopy;
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}
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