Fix rtl-optimization/78596 - combine.c:12561:14: runtime error: left shift of negative value
PR rtl-optimization/78596 * combine.c (simplify_comparison): Cast to unsigned to avoid left shifting of negative value. From-SVN: r243111
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@ -1,3 +1,9 @@
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2016-12-01 Markus Trippelsdorf <markus@trippelsdorf.de>
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PR rtl-optimization/78596
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* combine.c (simplify_comparison): Cast to unsigned to avoid
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left shifting of negative value.
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2016-12-01 Matthias Klose <doko@ubuntu.com>
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* doc/install.texi: Don't use pkg-config to check for bdw-gc.
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@ -12561,7 +12561,8 @@ simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1)
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if (GET_CODE (op0) == LSHIFTRT)
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code = unsigned_condition (code);
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const_op <<= INTVAL (XEXP (op0, 1));
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const_op = (unsigned HOST_WIDE_INT) const_op
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<< INTVAL (XEXP (op0, 1));
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if (low_bits != 0
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&& (code == GT || code == GTU
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|| code == LE || code == LEU))
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