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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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19
external/llvm/test/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll vendored Normal file
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@@ -0,0 +1,19 @@
; This test shows a case where SCCP is incorrectly eliminating the PHI node
; because it thinks it has a constant 0 value, when it really doesn't.
; RUN: opt < %s -sccp -S | grep phi
define i32 @test(i32 %A, i1 %c) {
bb1:
br label %BB2
BB2: ; preds = %BB4, %bb1
%V = phi i32 [ 0, %bb1 ], [ %A, %BB4 ] ; <i32> [#uses=1]
br label %BB3
BB3: ; preds = %BB2
br i1 %c, label %BB4, label %BB5
BB4: ; preds = %BB3
br label %BB2
BB5: ; preds = %BB3
ret i32 %V
}