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Imported Upstream version 5.18.0.246

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Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833
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Xamarin Public Jenkins (auto-signing)
2019-01-23 08:21:40 +00:00
parent a7724cd563
commit 279aa8f685
28482 changed files with 3866972 additions and 44 deletions
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13
external/llvm/test/Analysis/ValueTracking/knownnonzero-shift.ll vendored Normal file
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@ -0,0 +1,13 @@
; RUN: opt -instsimplify -S < %s | FileCheck %s
; CHECK-LABEL: @test
define i1 @test(i8 %p, i8* %pq) {
%q = load i8, i8* %pq, !range !0 ; %q is known nonzero; no known bits
%1 = shl i8 %p, %q ; because %q is nonzero, %1[0] is known to be zero.
%2 = and i8 %1, 1
%x = icmp eq i8 %2, 0
; CHECK: ret i1 true
ret i1 %x
}
!0 = !{ i8 1, i8 5 }