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[GlobalISel][Legalizer] Fix legalization of llvm.smul.with.overflow
authorAmara Emerson <aemerson@apple.com>
Wed, 3 Jan 2018 04:56:56 +0000 (04:56 +0000)
committerAmara Emerson <aemerson@apple.com>
Wed, 3 Jan 2018 04:56:56 +0000 (04:56 +0000)
commitcaeab26ff8462ab82091fb0089c4c876c97e99fd
tree7b7f286bd682926148b1979184752fd6bee75b81tree | snapshot
parent21028856626186a2caee8fb76b58ab8aa0f449accommit | diff
[GlobalISel][Legalizer] Fix legalization of llvm.smul.with.overflow

Previously the code for handling G_SMULO didn't properly check for the signed
multiply overflow, instead treating it the same as the unsigned G_UMULO.

Fixes PR35800.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321690 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/GlobalISel/LegalizerHelper.cpp diff | blob | history
test/CodeGen/AArch64/GlobalISel/legalize-mul.mir diff | blob | history
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