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Imported Upstream version 5.18.0.225

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Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5
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Xamarin Public Jenkins (auto-signing)
2018-12-21 19:01:49 +00:00
parent 32d52ae4ca
commit f32dbaf0b2
28477 changed files with 3866961 additions and 38 deletions
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24
external/llvm/test/Transforms/JumpThreading/degenerate-phi.ll vendored Normal file
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@@ -0,0 +1,24 @@
; RUN: opt -jump-threading -disable-output < %s
; PR9112
; This is actually a test for value tracking. Jump threading produces
; "%phi = phi i16" when it removes all edges leading to %unreachable.
; The .ll parser won't let us write that directly since it's invalid code.
define void @func() nounwind {
entry:
br label %bb
bb:
br label %bb
unreachable:
%phi = phi i16 [ %add, %unreachable ], [ 0, %next ]
%add = add i16 0, %phi
%cmp = icmp slt i16 %phi, 0
br i1 %cmp, label %unreachable, label %next
next:
br label %unreachable
}