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backport: re PR rtl-optimization/71976 (insn-combiner deletes a live 64-bit shift)
authorGeorg-Johann Lay <avr@gjlay.de>
Mon, 8 Aug 2016 10:13:54 +0000 (10:13 +0000)
committerGeorg-Johann Lay <gjl@gcc.gnu.org>
Mon, 8 Aug 2016 10:13:54 +0000 (10:13 +0000)
commitb8377ab8fb714e909adb89427acfcb1d646b615e
tree4c23ee55096403a19f690fbcfeb7aac6964bb776tree
parentc9c31e0f35936fcbb373cc78f27cddb684a44726commit | diff
backport: re PR rtl-optimization/71976 (insn-combiner deletes a live 64-bit shift)

Backport from 2016-07-29 trunk r238863.
PR rtl-optimization/71976
* combine.c (get_last_value): Return 0 if the argument for which
the function is called has a wider mode than the recorded value.

From-SVN: r239239
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gcc/combine.c diff | blob | blame | history
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