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Imported Upstream version 5.18.0.207

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Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
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Xamarin Public Jenkins (auto-signing)
2018-11-17 08:23:10 +00:00
parent 8e12397d70
commit eb85e2fc17
28480 changed files with 72 additions and 3866936 deletions
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17
external/llvm/test/Transforms/InstSimplify/2011-11-23-MaskedBitsCrash.ll vendored
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@ -1,17 +0,0 @@
; RUN: opt < %s -instsimplify
; The mul can be proved to always overflow (turning a negative value
; into a positive one) and thus results in undefined behaviour. At
; the same time we were deducing from the nsw flag that that mul could
; be assumed to have a negative value (since if not it has an undefined
; value, which can be taken to be negative). We were reporting the mul
; as being both positive and negative, firing an assertion!
define i1 @test1(i32 %a) {
entry:
%0 = or i32 %a, 1
%1 = shl i32 %0, 31
%2 = mul nsw i32 %1, 4
%3 = and i32 %2, -4
%4 = icmp ne i32 %3, 0
ret i1 %4
}