llvm-6502

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History

Hal Finkel 53c86db25b PPCDAGToDAGISel::isRunOfOnes should return false on zero

This fixes a bug (found by csmith) at -O0 where we attempt to create a RLWIMI
with an out-of-range operand. Most uses of the isRunOfOnes function are guarded
by a condition that the value is not zero. This was not true in two places, and
in both places a zero input would result in an out-of-rage MB value (= 32).

To fix this, isRunOfOnes returns false on a zero input (and I've remove one
now-redundant guard).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186101 91177308-0d34-0410-b5e6-96231b3b80d8

2013-07-11 16:31:51 +00:00

AArch64

AArch64/PowerPC/SystemZ/X86: This patch fixes the interface, usage, and all

2013-07-09 18:16:56 +00:00

ARM

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CPP

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Generic

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Hexagon

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